Prepare release v1.7.15

Co-authored-by: Nicolas Mengin <nmengin.pro@gmail.com>

.gitattributes

@@ -1 +1 @@
-# vendor/github.com/xenolf/lego/providers/dns/cloudxns/cloudxns.go eol=crlf
+# vendor/github.com/go-acme/lego/providers/dns/cloudxns/cloudxns.go eol=crlf

.gitignore

@@ -1,15 +1,17 @@
-/dist
-/autogen/genstatic/gen.go
 .idea/
 .intellij/
 *.iml
-/traefik
-/traefik.toml
-/static/
-/webui/.tmp/
 .vscode/
+.DS_Store
+/static/
+/autogen/genstatic/gen.go
+/webui/.tmp/
+/examples/acme/acme.json
 /site/
+/docs/site/
+/traefik.toml
+/dist
+/traefik
 *.log
 *.exe
-.DS_Store
-/examples/acme/acme.json
+cover.out

.semaphoreci/golang.sh

@@ -0,0 +1,20 @@
+#!/usr/bin/env bash
+
+set -e
+
+curl -O https://dl.google.com/go/go1.12.linux-amd64.tar.gz
+
+tar -xvf go1.12.linux-amd64.tar.gz
+rm -rf go1.12.linux-amd64.tar.gz
+
+sudo mkdir -p /usr/local/golang/1.12/go
+sudo mv go /usr/local/golang/1.12/
+
+sudo rm /usr/local/bin/go
+sudo chmod +x /usr/local/golang/1.12/go/bin/go
+sudo ln -s /usr/local/golang/1.12/go/bin/go /usr/local/bin/go
+
+export GOROOT="/usr/local/golang/1.12/go"
+export GOTOOLDIR="/usr/local/golang/1.12/go/pkg/tool/linux_amd64"
+
+go version

.semaphoreci/setup.sh

@@ -1,7 +1,7 @@
 #!/usr/bin/env bash
 set -e
 
-export DOCKER_VERSION=17.03.1
+export DOCKER_VERSION=18.09.7
 
 source .semaphoreci/vars
 

.travis.yml

@@ -30,9 +30,8 @@ before_deploy:
         make -j${N_MAKE_JOBS} crossbinary-parallel;
         tar cfz dist/traefik-${VERSION}.src.tar.gz --exclude-vcs --exclude dist .;
       fi;
-      curl -sI https://github.com/containous/structor/releases/latest | grep -Fi Location  | tr -d '\r' | sed "s/tag/download/g" | awk -F " " '{ print $2 "/structor_linux-amd64"}' | wget --output-document=$GOPATH/bin/structor -i -;
-      chmod +x $GOPATH/bin/structor;
-      structor -o containous -r traefik --dockerfile-url="https://raw.githubusercontent.com/containous/traefik/master/docs.Dockerfile" --menu.js-url="https://raw.githubusercontent.com/containous/structor/master/traefik-menu.js.gotmpl" --rqts-url="https://raw.githubusercontent.com/containous/structor/master/requirements-override.txt" --exp-branch=master --debug;
+      curl -sfL https://raw.githubusercontent.com/containous/structor/master/godownloader.sh | bash -s -- -b "${GOPATH}/bin" ${STRUCTOR_VERSION}
+      structor -o containous -r traefik --dockerfile-url="https://raw.githubusercontent.com/containous/traefik/v1.7/docs.Dockerfile" --menu.js-url="https://raw.githubusercontent.com/containous/structor/master/traefik-menu.js.gotmpl" --rqts-url="https://raw.githubusercontent.com/containous/structor/master/requirements-override.txt" --exp-branch=master --force-edit-url --debug;
     fi
 deploy:
   - provider: releases
@@ -49,11 +48,6 @@ deploy:
     on:
       repo: containous/traefik
       tags: true
-  - provider: script
-    script: sh script/deploy-docker.sh
-    skip_cleanup: true
-    on:
-      repo: containous/traefik
   - provider: pages
     edge: false
     github_token: ${GITHUB_TOKEN}

CHANGELOG.md

@@ -1,5 +1,213 @@
 # Change Log
 
+## [v1.7.15](https://github.com/containous/traefik/tree/v1.7.15) (2019-09-12)
+[All Commits](https://github.com/containous/traefik/compare/v1.7.14...v1.7.15)
+
+**Bug fixes:**
+- **[authentication,k8s/ingress]** Kubernetes support for Auth.HeaderField ([#5235](https://github.com/containous/traefik/pull/5235) by [ErikWegner](https://github.com/ErikWegner))
+- **[k8s,k8s/ingress]** Finish kubernetes throttling refactoring ([#5269](https://github.com/containous/traefik/pull/5269) by [mpl](https://github.com/mpl))
+- **[k8s]** Throttle Kubernetes config refresh ([#4716](https://github.com/containous/traefik/pull/4716) by [benweissmann](https://github.com/benweissmann))
+- **[k8s]** Fix wrong handling of insecure tls auth forward ingress annotation ([#5319](https://github.com/containous/traefik/pull/5319) by [majkrzak](https://github.com/majkrzak))
+- **[middleware]** error pages: do not buffer response when it's not an error ([#5285](https://github.com/containous/traefik/pull/5285) by [mpl](https://github.com/mpl))
+- **[tls]** Consider default cert domain in certificate store ([#5353](https://github.com/containous/traefik/pull/5353) by [nrwiersma](https://github.com/nrwiersma))
+- **[tls]** Add TLS minversion constraint ([#5356](https://github.com/containous/traefik/pull/5356) by [dtomcej](https://github.com/dtomcej))
+
+**Documentation:**
+- **[acme]** Update Acme doc - Vultr Wildcard & Root ([#5320](https://github.com/containous/traefik/pull/5320) by [ddymko](https://github.com/ddymko))
+- **[consulcatalog]** Typo in basic auth usersFile label consul-catalog ([#5230](https://github.com/containous/traefik/pull/5230) by [pitan](https://github.com/pitan))
+- **[logs]** Improve Access Logs Documentation page ([#5238](https://github.com/containous/traefik/pull/5238) by [dduportal](https://github.com/dduportal))
+
+## [v1.7.14](https://github.com/containous/traefik/tree/v1.7.14) (2019-08-14)
+[All Commits](https://github.com/containous/traefik/compare/v1.7.13...v1.7.14)
+
+**Bug fixes:**
+- Update to go1.12.8 ([#5201](https://github.com/containous/traefik/pull/5201) by [ldez](https://github.com/ldez)). HTTP/2 Denial of Service [CVE-2019-9512](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-9512) and [CVE-2019-9514](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-9514)
+- **[server]** Make hijackConnectionTracker.Close thread safe ([#5194](https://github.com/containous/traefik/pull/5194) by [jlevesy](https://github.com/jlevesy))
+
+## [v1.7.13](https://github.com/containous/traefik/tree/v1.7.13) (2019-08-07)
+[All Commits](https://github.com/containous/traefik/compare/v1.7.12...v1.7.13)
+
+**Bug fixes:**
+- **[acme]** Update lego ([#5166](https://github.com/containous/traefik/pull/5166) by [dabeck](https://github.com/dabeck))
+- **[consulcatalog]** warning should not be a fail status ([#4537](https://github.com/containous/traefik/pull/4537) by [saez0pub](https://github.com/saez0pub))
+- **[docker]** Update docker api version ([#4909](https://github.com/containous/traefik/pull/4909) by [dtomcej](https://github.com/dtomcej))
+- **[dynamodb]** Use dynamodbav tags to override json tags. ([#5002](https://github.com/containous/traefik/pull/5002) by [ldez](https://github.com/ldez))
+- **[healthcheck]** Wrr loadbalancer honors old weight on recovered servers ([#5051](https://github.com/containous/traefik/pull/5051) by [DougWagner](https://github.com/DougWagner))
+- **[k8s]** Check for multiport services on Global Backend Ingress ([#5021](https://github.com/containous/traefik/pull/5021) by [dtomcej](https://github.com/dtomcej))
+- **[logs]** Allows logs to use local time zone instead of UTC ([#4954](https://github.com/containous/traefik/pull/4954) by [dduportal](https://github.com/dduportal))
+- **[middleware]** Clear TLS client headers if TLSMutualAuth is optional ([#4963](https://github.com/containous/traefik/pull/4963) by [stffabi](https://github.com/stffabi))
+- **[tls]** Add missing KeyUsages for default generated certificate ([#5150](https://github.com/containous/traefik/pull/5150) by [dtomcej](https://github.com/dtomcej))
+
+**Documentation:**
+- **[acme]** Fixed doc link for AlibabaCloud ([#5109](https://github.com/containous/traefik/pull/5109) by [ddymko](https://github.com/ddymko))
+- **[docker]** Add example for CLI ([#5131](https://github.com/containous/traefik/pull/5131) by [alvarezbruned](https://github.com/alvarezbruned))
+- **[docker]** Use the latest stable version of traefik in the docs ([#4927](https://github.com/containous/traefik/pull/4927) by [kolaente](https://github.com/kolaente))
+- **[logs]** Update documentation to clarify the default format for logs ([#4953](https://github.com/containous/traefik/pull/4953) by [dduportal](https://github.com/dduportal))
+- **[rancher]** Add remarks about Rancher 2 ([#4999](https://github.com/containous/traefik/pull/4999) by [ldez](https://github.com/ldez))
+- **[tls]** Fixes the TLS Mutual Authentication documentation ([#5085](https://github.com/containous/traefik/pull/5085) by [jbdoumenjou](https://github.com/jbdoumenjou))
+- Format YAML example on user guide ([#5067](https://github.com/containous/traefik/pull/5067) by [gurayyildirim](https://github.com/gurayyildirim))
+- Update Slack support channel references to Discourse community forum ([#5014](https://github.com/containous/traefik/pull/5014) by [dduportal](https://github.com/dduportal))
+- Updating Service Fabric documentation ([#5160](https://github.com/containous/traefik/pull/5160) by [gheibia](https://github.com/gheibia))
+- Improve API / Dashboard wording in documentation ([#4929](https://github.com/containous/traefik/pull/4929) by [dduportal](https://github.com/dduportal))
+
+## [v1.7.12](https://github.com/containous/traefik/tree/v1.7.12) (2019-05-29)
+[All Commits](https://github.com/containous/traefik/compare/v1.7.11...v1.7.12)
+
+**Bug fixes:**
+- **[acme]** Allow SANs for wildcards domain. ([#4821](https://github.com/containous/traefik/pull/4821) by [vizv](https://github.com/vizv))
+- **[acme]** fix: update lego. ([#4910](https://github.com/containous/traefik/pull/4910) by [ldez](https://github.com/ldez))
+- **[api,authentication]** Remove authentication hashes from API ([#4918](https://github.com/containous/traefik/pull/4918) by [ldez](https://github.com/ldez))
+- **[consul]** Enhance KV logs. ([#4877](https://github.com/containous/traefik/pull/4877) by [ldez](https://github.com/ldez))
+- **[k8s]** Fix kubernetes template for backend responseforwarding flushinterval setting ([#4901](https://github.com/containous/traefik/pull/4901) by [ravilr](https://github.com/ravilr))
+- **[metrics]** Upgraded DataDog tracing library to 1.13.0 ([#4878](https://github.com/containous/traefik/pull/4878) by [aantono](https://github.com/aantono))
+- **[server]** Add missing callback on close of hijacked connections ([#4900](https://github.com/containous/traefik/pull/4900) by [ravilr](https://github.com/ravilr))
+
+**Documentation:**
+- **[docker]** Docs: Troubleshooting help for Docker Swarm labels ([#4751](https://github.com/containous/traefik/pull/4751) by [gregberns](https://github.com/gregberns))
+- **[logs]** Adds a log fields documentation. ([#4890](https://github.com/containous/traefik/pull/4890) by [ldez](https://github.com/ldez))
+
+## [v1.7.11](https://github.com/containous/traefik/tree/v1.7.11) (2019-04-26)
+[All Commits](https://github.com/containous/traefik/compare/v1.7.10...v1.7.11)
+
+**Enhancements:**
+- **[k8s,k8s/ingress]** Enhance k8s tests maintainability ([#4696](https://github.com/containous/traefik/pull/4696) by [ldez](https://github.com/ldez))
+
+**Bug fixes:**
+- **[acme]** fix: update lego. ([#4800](https://github.com/containous/traefik/pull/4800) by [ldez](https://github.com/ldez))
+- **[authentication,middleware]** Forward all header values from forward auth response ([#4515](https://github.com/containous/traefik/pull/4515) by [ctas582](https://github.com/ctas582))
+- **[cluster]** Remove usage of github.com/satori/go.uuid ([#4722](https://github.com/containous/traefik/pull/4722) by [aaslamin](https://github.com/aaslamin))
+- **[kv]** Enhance KV client error management ([#4819](https://github.com/containous/traefik/pull/4819) by [jbdoumenjou](https://github.com/jbdoumenjou))
+- **[tls]** Improve log message about redundant TLS certificate ([#4765](https://github.com/containous/traefik/pull/4765) by [mpl](https://github.com/mpl))
+- **[tracing]** Update zipkin-go-opentracing. ([#4720](https://github.com/containous/traefik/pull/4720) by [ldez](https://github.com/ldez))
+
+**Documentation:**
+- **[acme]** Documentation Update: Hosting.de wildcard support tested ([#4747](https://github.com/containous/traefik/pull/4747) by [martinhoefling](https://github.com/martinhoefling))
+- **[acme]** Update Wildcard Domain documentation ([#4682](https://github.com/containous/traefik/pull/4682) by [DWSR](https://github.com/DWSR))
+- **[middleware]** Keep consistent order ([#4690](https://github.com/containous/traefik/pull/4690) by [maxifom](https://github.com/maxifom))
+
+## [v1.7.10](https://github.com/containous/traefik/tree/v1.7.10) (2019-03-28)
+[All Commits](https://github.com/containous/traefik/compare/v1.7.9...v1.7.10)
+
+**Bug fixes:**
+- **[acme]** fix: update lego. ([#4670](https://github.com/containous/traefik/pull/4670) by [ldez](https://github.com/ldez))
+- **[acme]** Migrate to go-acme/lego. ([#4577](https://github.com/containous/traefik/pull/4577) by [ldez](https://github.com/ldez))
+- **[authentication,middleware]** Reorder Auth and TLSClientHeaders middleware ([#4557](https://github.com/containous/traefik/pull/4557) by [tomberek](https://github.com/tomberek))
+- **[k8s/ingress]** Support external name service on global default backend ([#4564](https://github.com/containous/traefik/pull/4564) by [kippandrew](https://github.com/kippandrew))
+- **[k8s/ingress]** Loop through service ports for global backend ([#4486](https://github.com/containous/traefik/pull/4486) by [dtomcej](https://github.com/dtomcej))
+- **[k8s]** Add entrypoints prefix in kubernetes frontend/backend id  ([#4679](https://github.com/containous/traefik/pull/4679) by [juliens](https://github.com/juliens))
+- **[websocket]** Exclude websocket connections from Average Response Time ([#4313](https://github.com/containous/traefik/pull/4313) by [siyu6974](https://github.com/siyu6974))
+- **[middleware]** Added support for configuring trace headers for DataDog tracing ([#4516](https://github.com/containous/traefik/pull/4516) by [aantono](https://github.com/aantono))
+
+**Documentation:**
+- **[acme]** Add _FILE Environment Variable Documentation ([#4643](https://github.com/containous/traefik/pull/4643) by [dargmuesli](https://github.com/dargmuesli))
+- **[docker]** Add TraefikEE as security workaround ([#4606](https://github.com/containous/traefik/pull/4606) by [emilevauge](https://github.com/emilevauge))
+
+## [v1.7.9](https://github.com/containous/traefik/tree/v1.7.9) (2019-02-11)
+[All Commits](https://github.com/containous/traefik/compare/v1.7.8...v1.7.9)
+
+**Bug fixes:**
+- **[acme]** Updates of Lego. ([#4480](https://github.com/containous/traefik/pull/4480) by [ldez](https://github.com/ldez))
+- **[k8s]** app-root on non-explicit path include "/" in the redirect ([#4458](https://github.com/containous/traefik/pull/4458) by [doctori](https://github.com/doctori))
+- **[middleware]** Missing trailers with retry ([#4442](https://github.com/containous/traefik/pull/4442) by [juliens](https://github.com/juliens))
+- **[rancher]** Handle errors when working with rancher ([#4378](https://github.com/containous/traefik/pull/4378) by [apsifly](https://github.com/apsifly))
+- **[servicefabric]** Add support for specifying the name of the endpoint. ([#4479](https://github.com/containous/traefik/pull/4479) by [ldez](https://github.com/ldez))
+- **[tls]** insecureSkipVerify for the passTLSCert transport ([#4438](https://github.com/containous/traefik/pull/4438) by [jbdoumenjou](https://github.com/jbdoumenjou))
+- **[tracing]** Add Tracing Header Context Name option for Jaeger ([#4459](https://github.com/containous/traefik/pull/4459) by [gadoor](https://github.com/gadoor))
+
+**Documentation:**
+- **[metrics]** Update default value of buckets for Prometheus ([#4468](https://github.com/containous/traefik/pull/4468) by [adam-golab](https://github.com/adam-golab))
+- **[rules]** Fixes the display of the associativity rules. ([#4478](https://github.com/containous/traefik/pull/4478) by [ldez](https://github.com/ldez))
+- Fixed curl example ([#4471](https://github.com/containous/traefik/pull/4471) by [rgarrigue](https://github.com/rgarrigue))
+
+## [v1.7.8](https://github.com/containous/traefik/tree/v1.7.8) (2019-01-29)
+[All Commits](https://github.com/containous/traefik/compare/v1.7.7...v1.7.8)
+
+**Bug fixes:**
+- **[acme]** Updates lego. ([#4428](https://github.com/containous/traefik/pull/4428) by [ldez](https://github.com/ldez))
+- **[acme]** Updates lego. ([#4376](https://github.com/containous/traefik/pull/4376) by [ldez](https://github.com/ldez))
+- **[docker]** Fixes docker swarm mode refresh second for KV. ([#4420](https://github.com/containous/traefik/pull/4420) by [ldez](https://github.com/ldez))
+- **[ecs]** Generic awsvpc support, not just Fargate ([#4360](https://github.com/containous/traefik/pull/4360) by [maartenvanderhoef](https://github.com/maartenvanderhoef))
+- **[ecs]** Cache exising task definitions to avoid rate limiting ([#4177](https://github.com/containous/traefik/pull/4177) by [hwhelan-CB](https://github.com/hwhelan-CB))
+- **[tls]** Check for dynamic tls updates on configuration preload ([#4022](https://github.com/containous/traefik/pull/4022) by [ffilippopoulos](https://github.com/ffilippopoulos))
+- **[tracing]** Support Datadog tracer priority sampling ([#4359](https://github.com/containous/traefik/pull/4359) by [jcassee](https://github.com/jcassee))
+- Update to Go 1.11.5 [CVE-2019-6486](https://nvd.nist.gov/vuln/detail/CVE-2019-6486)
+
+**Documentation:**
+- **[acme]** More detailed info about Google Cloud DNS. ([#4395](https://github.com/containous/traefik/pull/4395) by [ldez](https://github.com/ldez))
+- **[acme]** Tested wildcard ACME challenge with DNSimple ([#4384](https://github.com/containous/traefik/pull/4384) by [tstackhouse](https://github.com/tstackhouse))
+- **[docker]** Note about quotes for entrypoint definition with docker-compose ([#4390](https://github.com/containous/traefik/pull/4390) by [Dragnucs](https://github.com/Dragnucs))
+- **[k8s]** Allow Træfik to update Ingress status ([#4397](https://github.com/containous/traefik/pull/4397) by [rbq](https://github.com/rbq))
+- **[k8s]** Minor formatting fixes ([#4394](https://github.com/containous/traefik/pull/4394) by [dbirks](https://github.com/dbirks))
+- **[metrics]** Missing information about statistics parameter ([#4393](https://github.com/containous/traefik/pull/4393) by [decima](https://github.com/decima))
+- **[rules]** Route priorities: document minimum priority value ([#4374](https://github.com/containous/traefik/pull/4374) by [tw-360vier](https://github.com/tw-360vier))
+- Removed repeated entryPoints.http from grpc.md ([#4370](https://github.com/containous/traefik/pull/4370) by [ishaanbahal](https://github.com/ishaanbahal))
+- Happy 2019 ([#4367](https://github.com/containous/traefik/pull/4367) by [emilevauge](https://github.com/emilevauge))
+
+**Misc:**
+- Assert that test timeout service is ready. ([#4398](https://github.com/containous/traefik/pull/4398) by [timoreimann](https://github.com/timoreimann))
+
+## [v1.7.7](https://github.com/containous/traefik/tree/v1.7.7) (2019-01-08)
+[All Commits](https://github.com/containous/traefik/compare/v1.7.6...v1.7.7)
+
+**Bug fixes:**
+- **[acme]** Update Lego ([#4277](https://github.com/containous/traefik/pull/4277) by [ldez](https://github.com/ldez))
+- **[k8s]** Check for watched namespace before getting kubernetes objects ([#4327](https://github.com/containous/traefik/pull/4327) by [dtomcej](https://github.com/dtomcej))
+- **[k8s]** Allow empty path with App-root annotation ([#4326](https://github.com/containous/traefik/pull/4326) by [dtomcej](https://github.com/dtomcej))
+- **[k8s]** kubernetes: sort and uniq TLS secrets ([#4307](https://github.com/containous/traefik/pull/4307) by [zarqman](https://github.com/zarqman))
+- **[k8s]** Skip TLS section with no secret in Kubernetes ingress ([#4340](https://github.com/containous/traefik/pull/4340) by [dtomcej](https://github.com/dtomcej))
+- **[middleware,consul,consulcatalog,docker,ecs,k8s,marathon,mesos,rancher]** Add Pass TLS Cert Issuer and Domain Component ([#4298](https://github.com/containous/traefik/pull/4298) by [jbdoumenjou](https://github.com/jbdoumenjou))
+- **[middleware]** Retry middleware : store headers per attempts and propagate them when responding. ([#4299](https://github.com/containous/traefik/pull/4299) by [jlevesy](https://github.com/jlevesy))
+- **[middleware]** Redirection status codes for methods different than GET ([#4116](https://github.com/containous/traefik/pull/4116) by [r--w](https://github.com/r--w))
+- Test and exit for jq error before domain loop ([#4347](https://github.com/containous/traefik/pull/4347) by [muhlemmer](https://github.com/muhlemmer))
+
+**Documentation:**
+- **[acme]** Letsencrypt - Add info on httpreq format ([#4355](https://github.com/containous/traefik/pull/4355) by [goetas](https://github.com/goetas))
+- **[docker]** Update broken link for Docker service constraints ([#4289](https://github.com/containous/traefik/pull/4289) by [clrech](https://github.com/clrech))
+- **[middleware]** Add extractorfunc values ([#4351](https://github.com/containous/traefik/pull/4351) by [hsmade](https://github.com/hsmade))
+- **[provider]** Rephrase the `traefik.backend` definition in documentation ([#4317](https://github.com/containous/traefik/pull/4317) by [dduportal](https://github.com/dduportal))
+- Harden Traefik systemd service ([#4302](https://github.com/containous/traefik/pull/4302) by [jacksgt](https://github.com/jacksgt))
+
+## [v1.7.6](https://github.com/containous/traefik/tree/v1.7.6) (2018-12-07)
+[All Commits](https://github.com/containous/traefik/compare/v1.7.5...v1.7.6)
+
+**Bug fixes:**
+- **[consulcatalog]** Fix label segmentation when using custom prefix ([#4272](https://github.com/containous/traefik/pull/4272) by [hsmade](https://github.com/hsmade))
+- Update to Go 1.11.3 [CVE-2018-16875](https://nvd.nist.gov/vuln/detail/CVE-2018-16875)
+
+## [v1.7.5](https://github.com/containous/traefik/tree/v1.7.5) (2018-12-03)
+[All Commits](https://github.com/containous/traefik/compare/v1.7.4...v1.7.5)
+
+**Enhancements:**
+- **[docker]** [docker backend] - Add config flag to set refreshSeconds for swarmmode ticker ([#4105](https://github.com/containous/traefik/pull/4105) by [WTFKr0](https://github.com/WTFKr0))
+- **[k8s]** Support canary weight for external name service ([#4135](https://github.com/containous/traefik/pull/4135) by [yue9944882](https://github.com/yue9944882))
+
+**Bug fixes:**
+- **[acme]** Fix ACME spec and Cloudflare. ([#4201](https://github.com/containous/traefik/pull/4201) by [ldez](https://github.com/ldez))
+- **[authentication,middleware]** Remove X-Forwarded-Uri and X-Forwarded-Method from untrusted IP ([#4036](https://github.com/containous/traefik/pull/4036) by [stffabi](https://github.com/stffabi))
+- **[authentication,middleware]** Allow usersFile comments ([#4159](https://github.com/containous/traefik/pull/4159) by [thde](https://github.com/thde))
+- **[authentication]** Fix partial declaration of authentication. ([#4212](https://github.com/containous/traefik/pull/4212) by [ldez](https://github.com/ldez))
+- **[docker]** Verify ctx when we send configuration message in docker provider ([#4185](https://github.com/containous/traefik/pull/4185) by [juliens](https://github.com/juliens))
+- **[ecs]** Filter ECS tasks by LastStatus before adding to list of service tasks ([#4255](https://github.com/containous/traefik/pull/4255) by [hwhelan-CB](https://github.com/hwhelan-CB))
+- **[healthcheck]** Query params in health check ([#4188](https://github.com/containous/traefik/pull/4188) by [mmatur](https://github.com/mmatur))
+- **[metrics]** Upgraded DD APM library ([#4189](https://github.com/containous/traefik/pull/4189) by [aantono](https://github.com/aantono))
+- **[middleware]** Fix ssl force host secure middleware ([#4138](https://github.com/containous/traefik/pull/4138) by [mmatur](https://github.com/mmatur))
+- **[oxy]** Fix unannonced trailers problem when body is empty ([#4258](https://github.com/containous/traefik/pull/4258) by [juliens](https://github.com/juliens))
+- **[provider,server]** Log configuration errors from providers and keeps listening ([#4230](https://github.com/containous/traefik/pull/4230) by [geraldcroes](https://github.com/geraldcroes))
+- **[tls]** Implement Case-insensitive SNI matching ([#4132](https://github.com/containous/traefik/pull/4132) by [dtomcej](https://github.com/dtomcej))
+- Use ParseInt instead of Atoi for parsing durations ([#4263](https://github.com/containous/traefik/pull/4263) by [mmatur](https://github.com/mmatur))
+
+**Documentation:**
+- **[acme]** ACME DNS provider is called `acme-dns` ([#4166](https://github.com/containous/traefik/pull/4166) by [robsdedude](https://github.com/robsdedude))
+- **[docker]** Add a "Security Consideration" section in the Docker's backend section of the documentation ([#4225](https://github.com/containous/traefik/pull/4225) by [dduportal](https://github.com/dduportal))
+- **[docker]** Clarify swarm loadbalancer documentation ([#4194](https://github.com/containous/traefik/pull/4194) by [jlevesy](https://github.com/jlevesy))
+- **[docker]** Fix spelling in comment ([#4169](https://github.com/containous/traefik/pull/4169) by [giocomai](https://github.com/giocomai))
+- **[docker]** Update swarm mode endpoint ([#4208](https://github.com/containous/traefik/pull/4208) by [siyu6974](https://github.com/siyu6974))
+- **[k8s]** Include an explicit list of kubernetes protocol annotations in docs. ([#4170](https://github.com/containous/traefik/pull/4170) by [shanna](https://github.com/shanna))
+- **[k8s]** Improve kubernetes TLS user guide ([#4175](https://github.com/containous/traefik/pull/4175) by [mterring](https://github.com/mterring))
+- **[k8s]** frame-deny should be set to true to enable the header ([#4171](https://github.com/containous/traefik/pull/4171) by [swestcott](https://github.com/swestcott))
+- **[rules]** Matcher associativity rule. ([#4244](https://github.com/containous/traefik/pull/4244) by [ldez](https://github.com/ldez))
+- Documentation: Rename "admin panel" to "dashboard ([#4156](https://github.com/containous/traefik/pull/4156) by [thernstig](https://github.com/thernstig))
+
 ## [v1.7.4](https://github.com/containous/traefik/tree/v1.7.4) (2018-10-30)
 [All Commits](https://github.com/containous/traefik/compare/v1.7.3...v1.7.4)
 
@@ -1018,7 +1226,7 @@
 - **[acme,tls]** Rename TLSConfigurations to TLS. ([#2744](https://github.com/containous/traefik/pull/2744) by [ldez](https://github.com/ldez))
 - **[acme,provider,docker,tls]** Make the TLS certificates management dynamic. ([#2233](https://github.com/containous/traefik/pull/2233) by [nmengin](https://github.com/nmengin))
 - **[acme]** Add Let's Encrypt HTTP Challenge ([#2701](https://github.com/containous/traefik/pull/2701) by [Juliens](https://github.com/Juliens))
-- **[acme]** Update github.com/xenolf/lego to 0.4.1 ([#2304](https://github.com/containous/traefik/pull/2304) by [oldmantaiter](https://github.com/oldmantaiter))
+- **[acme]** Update github.com/go-acme/lego to 0.4.1 ([#2304](https://github.com/containous/traefik/pull/2304) by [oldmantaiter](https://github.com/oldmantaiter))
 - **[api,healthcheck,metrics,provider,webui]** Split Web into API/Dashboard, ping, metric and Rest Provider ([#2335](https://github.com/containous/traefik/pull/2335) by [Juliens](https://github.com/Juliens))
 - **[authentication]** Pass through certain forward auth negative response headers ([#2127](https://github.com/containous/traefik/pull/2127) by [wheresmysocks](https://github.com/wheresmysocks))
 - **[cluster,consul,file]** Add file to storeconfig ([#2419](https://github.com/containous/traefik/pull/2419) by [emilevauge](https://github.com/emilevauge))
@@ -1297,7 +1505,7 @@
 
 **Enhancements:**
 - **[acme,provider,docker,tls]** Make the TLS certificates management dynamic. ([#2233](https://github.com/containous/traefik/pull/2233) by [nmengin](https://github.com/nmengin))
-- **[acme]** Update github.com/xenolf/lego to 0.4.1 ([#2304](https://github.com/containous/traefik/pull/2304) by [oldmantaiter](https://github.com/oldmantaiter))
+- **[acme]** Update github.com/go-acme/lego to 0.4.1 ([#2304](https://github.com/containous/traefik/pull/2304) by [oldmantaiter](https://github.com/oldmantaiter))
 - **[api,healthcheck,metrics,provider,webui]** Split Web into API/Dashboard, ping, metric and Rest Provider ([#2335](https://github.com/containous/traefik/pull/2335) by [Juliens](https://github.com/Juliens))
 - **[authentication]** Pass through certain forward auth negative response headers ([#2127](https://github.com/containous/traefik/pull/2127) by [wheresmysocks](https://github.com/wheresmysocks))
 - **[cluster,consul,file]** Add file to storeconfig ([#2419](https://github.com/containous/traefik/pull/2419) by [emilevauge](https://github.com/emilevauge))

CONTRIBUTING.md

@@ -13,7 +13,7 @@ You need to run the `binary` target. This will create binaries for Linux platfor
 $ make binary
 docker build -t "traefik-dev:no-more-godep-ever" -f build.Dockerfile .
 Sending build context to Docker daemon 295.3 MB
-Step 0 : FROM golang:1.11-alpine
+Step 0 : FROM golang:1.12-alpine
  ---> 8c6473912976
 Step 1 : RUN go get github.com/golang/dep/cmd/dep
 [...]
@@ -87,7 +87,7 @@ If you happen to update the provider templates (in `/templates`), you need to ru
 
 [dep](https://github.com/golang/dep) is not required for building; however, it is necessary to modify dependencies (i.e., add, update, or remove third-party packages)
 
-You need to use [dep](https://github.com/golang/dep) >= O.4.1.
+You need to use [dep](https://github.com/golang/dep) >= 0.5.0.
 
 If you want to add a dependency, use `dep ensure -add` to have [dep](https://github.com/golang/dep) put it into the vendor folder and update the dep manifest/lock files (`Gopkg.toml` and `Gopkg.lock`, respectively).
 
@@ -158,7 +158,7 @@ Integration tests must be run from the `integration/` directory and require the
 
 ## Documentation
 
-The [documentation site](http://docs.traefik.io/) is built with [mkdocs](http://mkdocs.org/)
+The [documentation site](https://docs.traefik.io/) is built with [mkdocs](https://mkdocs.org/)
 
 ### Building Documentation
 
@@ -236,6 +236,14 @@ $ make docs-clean docs-verify
 ...
 ```
 
+Please note that verification can be disabled by setting the environment variable `DOCS_VERIFY_SKIP` to `true`:
+
+```shell
+DOCS_VERIFY_SKIP=true make docs-verify
+...
+DOCS_LINT_SKIP is true: no linting done.
+```
+
 ## How to Write a Good Issue
 
 Please keep in mind that the GitHub issue tracker is not intended as a general support forum, but for reporting bugs and feature requests.

Gopkg.toml

@@ -19,6 +19,11 @@
 #  name = "github.com/x/y"
 #  version = "2.4.0"
 
+[prune]
+  non-go = true
+  go-tests = true
+  unused-packages = true
+
 [[constraint]]
   branch = "master"
   name = "github.com/ArthurHlt/go-eureka-client"
@@ -31,6 +36,10 @@
   branch = "master"
   name = "github.com/BurntSushi/ty"
 
+[[constraint]]
+  name = "github.com/Masterminds/sprig"
+  version = "2.19.0"
+
 [[constraint]]
   branch = "master"
   name = "github.com/NYTimes/gziphandler"
@@ -40,6 +49,11 @@
   name = "github.com/abbot/go-http-auth"
   source = "github.com/containous/go-http-auth"
 
+[[constraint]]
+  name = "github.com/thoas/stats"
+  # related to https://github.com/thoas/stats/pull/32
+  revision = "4975baf6a358ed3ddaa42133996e1959f96c9300"
+
 [[constraint]]
   branch = "master"
   name = "github.com/armon/go-proxyproto"
@@ -49,12 +63,12 @@
   version = "1.13.11"
 
 [[constraint]]
-  branch = "master"
   name = "github.com/cenk/backoff"
+  version = "v2.1.1"
 
 [[constraint]]
   name = "github.com/containous/flaeg"
-  version = "1.3.0"
+  version = "1.4.1"
 
 [[constraint]]
   branch = "master"
@@ -66,7 +80,7 @@
 
 [[constraint]]
   name = "github.com/containous/traefik-extra-service-fabric"
-  version = "1.3.0"
+  version = "v1.5.0"
 
 [[constraint]]
   name = "github.com/coreos/go-systemd"
@@ -112,8 +126,8 @@
   version = "1.3.7"
 
 [[constraint]]
-  branch = "master"
   name = "github.com/jjcollinge/servicefabric"
+  revision = "8eebe170fa1ba25d3dfb928b3f86a7313b13b9fe"
 
 [[constraint]]
   branch = "master"
@@ -123,18 +137,6 @@
   name = "github.com/mesosphere/mesos-dns"
   source = "https://github.com/containous/mesos-dns.git"
 
-[[constraint]]
-  branch = "master"
-  name = "github.com/mitchellh/copystructure"
-
-[[constraint]]
-  branch = "master"
-  name = "github.com/mitchellh/hashstructure"
-
-[[constraint]]
-  branch = "master"
-  name = "github.com/mitchellh/mapstructure"
-
 [[constraint]]
   name = "github.com/opentracing/opentracing-go"
   version = "1.0.2"
@@ -148,10 +150,6 @@
   branch = "master"
   name = "github.com/ryanuber/go-glob"
 
-[[constraint]]
-  name = "github.com/satori/go.uuid"
-  version = "1.1.0"
-
 [[constraint]]
   branch = "master"
   name = "github.com/stvp/go-udp-testing"
@@ -162,7 +160,7 @@
 
 [[constraint]]
   name = "github.com/uber/jaeger-client-go"
-  version = "2.9.0"
+  version = "2.15.0"
 
 [[constraint]]
   name = "github.com/uber/jaeger-lib"
@@ -181,9 +179,12 @@
   name = "github.com/vulcand/oxy"
 
 [[constraint]]
-  branch = "master"
-  name = "github.com/xenolf/lego"
-#  version = "1.0.0"
+  name = "github.com/go-acme/lego"
+  version = "2.7.2"
+
+[[constraint]]
+  name = "github.com/golang/protobuf"
+  version = "v1.3.0"
 
 [[constraint]]
   name = "google.golang.org/grpc"
@@ -249,18 +250,17 @@
   revision = "7e6055773c5137efbeb3bd2410d705fe10ab6bfd"
 
 [[override]]
-  branch = "master"
+  version = "v1.1.1"
   name = "github.com/miekg/dns"
 
-[prune]
-  non-go = true
-  go-tests = true
-  unused-packages = true
-
 [[constraint]]
   name = "github.com/patrickmn/go-cache"
   version = "2.1.0"
 
 [[constraint]]
   name = "gopkg.in/DataDog/dd-trace-go.v1"
-  version = "1.0.0"
+  version = "1.13.0"
+
+[[constraint]]
+  name = "github.com/google/uuid"
+  version = "0.2.0"

Makefile

@@ -23,6 +23,7 @@ TRAEFIK_IMAGE := $(if $(REPONAME),$(REPONAME),"containous/traefik")
 INTEGRATION_OPTS := $(if $(MAKE_DOCKER_HOST),-e "DOCKER_HOST=$(MAKE_DOCKER_HOST)", -e "TEST_CONTAINER=1" -v "/var/run/docker.sock:/var/run/docker.sock")
 TRAEFIK_DOC_IMAGE := traefik-docs
 TRAEFIK_DOC_VERIFY_IMAGE := $(TRAEFIK_DOC_IMAGE)-verify
+DOCS_VERIFY_SKIP ?= false
 
 DOCKER_BUILD_ARGS := $(if $(DOCKER_VERSION), "--build-arg=DOCKER_VERSION=$(DOCKER_VERSION)",)
 DOCKER_RUN_OPTS := $(TRAEFIK_ENVS) $(TRAEFIK_MOUNT) "$(TRAEFIK_DEV_IMAGE)"
@@ -75,7 +76,7 @@ test-integration: build ## run the integration tests
 	TEST_HOST=1 ./script/make.sh test-integration
 
 validate: build  ## validate code, vendor and autogen
-	$(DOCKER_RUN_TRAEFIK) ./script/make.sh validate-gofmt validate-govet validate-golint validate-misspell validate-vendor validate-autogen
+	$(DOCKER_RUN_TRAEFIK) ./script/make.sh validate-gofmt validate-golint validate-misspell validate-vendor validate-autogen
 
 build: dist
 	docker build $(DOCKER_BUILD_ARGS) -t "$(TRAEFIK_DEV_IMAGE)" -f build.Dockerfile .
@@ -104,8 +105,12 @@ docs: docs-image
 docs-build: site
 
 docs-verify: site
-	docker build -t $(TRAEFIK_DOC_VERIFY_IMAGE) ./script/docs-verify-docker-image ## Build Validator image
-	docker run --rm -v $(CURDIR):/app $(TRAEFIK_DOC_VERIFY_IMAGE) ## Check for dead links and w3c compliance
+ifeq ($(DOCS_VERIFY_SKIP),false)
+	docker build -t $(TRAEFIK_DOC_VERIFY_IMAGE) ./script/docs-verify-docker-image
+	docker run --rm -v $(CURDIR):/app $(TRAEFIK_DOC_VERIFY_IMAGE)
+else
+	@echo "DOCS_LINT_SKIP is true: no linting done."
+endif
 
 site: docs-image
 	docker run  $(DOCKER_RUN_DOC_OPTS) $(TRAEFIK_DOC_IMAGE) mkdocs build

README.md

@@ -113,13 +113,13 @@ If you need commercial support, please contact [Containo.us](https://containo.us
 
 ## Download
 
-- Grab the latest binary from the [releases](https://github.com/containous/traefik/releases) page and run it with the [sample configuration file](https://raw.githubusercontent.com/containous/traefik/master/traefik.sample.toml):
+- Grab the latest binary from the [releases](https://github.com/containous/traefik/releases) page and run it with the [sample configuration file](https://raw.githubusercontent.com/containous/traefik/v1.7/traefik.sample.toml):
 
 ```shell
 ./traefik --configFile=traefik.toml
 ```
 
-- Or use the official tiny Docker image and run it with the [sample configuration file](https://raw.githubusercontent.com/containous/traefik/master/traefik.sample.toml):
+- Or use the official tiny Docker image and run it with the [sample configuration file](https://raw.githubusercontent.com/containous/traefik/v1.7/traefik.sample.toml):
 
 ```shell
 docker run -d -p 8080:8080 -p 80:80 -v $PWD/traefik.toml:/etc/traefik/traefik.toml traefik
@@ -133,7 +133,7 @@ git clone https://github.com/containous/traefik
 
 ## Introductory Videos
 
-Here is a talk given by [Emile Vauge](https://github.com/emilevauge) at [GopherCon 2017](https://gophercon.com/).
+Here is a talk given by [Emile Vauge](https://github.com/emilevauge) at GopherCon 2017.
 You will learn Traefik basics in less than 10 minutes.
 
 [![Traefik GopherCon 2017](https://img.youtube.com/vi/RgudiksfL-k/0.jpg)](https://www.youtube.com/watch?v=RgudiksfL-k)

acme/account.go

@@ -17,15 +17,16 @@ import (
 	"github.com/containous/traefik/log"
 	acmeprovider "github.com/containous/traefik/provider/acme"
 	"github.com/containous/traefik/types"
-	"github.com/xenolf/lego/acme"
+	"github.com/go-acme/lego/certcrypto"
+	"github.com/go-acme/lego/registration"
 )
 
 // Account is used to store lets encrypt registration info
 type Account struct {
 	Email              string
-	Registration       *acme.RegistrationResource
+	Registration       *registration.Resource
 	PrivateKey         []byte
-	KeyType            acme.KeyType
+	KeyType            certcrypto.KeyType
 	DomainsCertificate DomainsCertificates
 	ChallengeCerts     map[string]*ChallengeCert
 	HTTPChallenge      map[string]map[string][]byte
@@ -100,7 +101,7 @@ func (a *Account) GetEmail() string {
 }
 
 // GetRegistration returns lets encrypt registration resource
-func (a *Account) GetRegistration() *acme.RegistrationResource {
+func (a *Account) GetRegistration() *registration.Resource {
 	return a.Registration
 }
 

acme/acme.go

@@ -27,14 +27,19 @@ import (
 	"github.com/containous/traefik/types"
 	"github.com/containous/traefik/version"
 	"github.com/eapache/channels"
+	"github.com/go-acme/lego/certificate"
+	"github.com/go-acme/lego/challenge"
+	"github.com/go-acme/lego/challenge/dns01"
+	"github.com/go-acme/lego/challenge/http01"
+	"github.com/go-acme/lego/lego"
+	legolog "github.com/go-acme/lego/log"
+	"github.com/go-acme/lego/providers/dns"
+	"github.com/go-acme/lego/registration"
 	"github.com/sirupsen/logrus"
-	"github.com/xenolf/lego/acme"
-	legolog "github.com/xenolf/lego/log"
-	"github.com/xenolf/lego/providers/dns"
 )
 
 var (
-	// OSCPMustStaple enables OSCP stapling as from https://github.com/xenolf/lego/issues/270
+	// OSCPMustStaple enables OSCP stapling as from https://github.com/go-acme/lego/issues/270
 	OSCPMustStaple = false
 )
 
@@ -57,7 +62,7 @@ type ACME struct {
 	DelayDontCheckDNS     flaeg.Duration              `description:"(Deprecated) Assume DNS propagates after a delay in seconds rather than finding and querying nameservers."` // Deprecated
 	ACMELogging           bool                        `description:"Enable debug logging of ACME actions."`
 	OverrideCertificates  bool                        `description:"Enable to override certificates in key-value store when using storeconfig"`
-	client                *acme.Client
+	client                *lego.Client
 	store                 cluster.Store
 	challengeHTTPProvider *challengeHTTPProvider
 	challengeTLSProvider  *challengeTLSProvider
@@ -70,8 +75,6 @@ type ACME struct {
 }
 
 func (a *ACME) init() error {
-	acme.UserAgent = fmt.Sprintf("containous-traefik/%s", version.Version)
-
 	if a.ACMELogging {
 		legolog.Logger = fmtlog.New(log.WriterLevel(logrus.InfoLevel), "legolog: ", 0)
 	} else {
@@ -89,7 +92,7 @@ func (a *ACME) init() error {
 // AddRoutes add routes on internal router
 func (a *ACME) AddRoutes(router *mux.Router) {
 	router.Methods(http.MethodGet).
-		Path(acme.HTTP01ChallengePath("{token}")).
+		Path(http01.ChallengePath("{token}")).
 		Handler(http.HandlerFunc(func(rw http.ResponseWriter, req *http.Request) {
 			if a.challengeHTTPProvider == nil {
 				rw.WriteHeader(http.StatusNotFound)
@@ -222,7 +225,7 @@ func (a *ACME) leadershipListener(elected bool) error {
 			// New users will need to register; be sure to save it
 			log.Debug("Register...")
 
-			reg, err := a.client.Register(true)
+			reg, err := a.client.Registration.Register(registration.RegisterOptions{TermsOfServiceAgreed: true})
 			if err != nil {
 				return err
 			}
@@ -367,7 +370,7 @@ func (a *ACME) renewCertificates() {
 }
 
 func (a *ACME) renewACMECertificate(certificateResource *DomainsCertificate) (*Certificate, error) {
-	renewedCert, err := a.client.RenewCertificate(acme.CertificateResource{
+	renewedCert, err := a.client.Certificate.Renew(certificate.Resource{
 		Domain:        certificateResource.Certificate.Domain,
 		CertURL:       certificateResource.Certificate.CertURL,
 		CertStableURL: certificateResource.Certificate.CertStableURL,
@@ -416,28 +419,19 @@ func (a *ACME) storeRenewedCertificate(certificateResource *DomainsCertificate,
 	return nil
 }
 
-func dnsOverrideDelay(delay flaeg.Duration) error {
-	var err error
-	if delay > 0 {
-		log.Debugf("Delaying %d rather than validating DNS propagation", delay)
-		acme.PreCheckDNS = func(_, _ string) (bool, error) {
-			time.Sleep(time.Duration(delay))
-			return true, nil
-		}
-	} else if delay < 0 {
-		err = fmt.Errorf("invalid negative DelayBeforeCheck: %d", delay)
-	}
-	return err
-}
-
-func (a *ACME) buildACMEClient(account *Account) (*acme.Client, error) {
+func (a *ACME) buildACMEClient(account *Account) (*lego.Client, error) {
 	log.Debug("Building ACME client...")
 	caServer := "https://acme-v02.api.letsencrypt.org/directory"
 	if len(a.CAServer) > 0 {
 		caServer = a.CAServer
 	}
 
-	client, err := acme.NewClient(caServer, account, account.KeyType)
+	config := lego.NewConfig(account)
+	config.CADirURL = caServer
+	config.Certificate.KeyType = account.KeyType
+	config.UserAgent = fmt.Sprintf("containous-traefik/%s", version.Version)
+
+	client, err := lego.NewClient(config)
 	if err != nil {
 		return nil, err
 	}
@@ -446,22 +440,23 @@ func (a *ACME) buildACMEClient(account *Account) (*acme.Client, error) {
 	if a.DNSChallenge != nil && len(a.DNSChallenge.Provider) > 0 {
 		log.Debugf("Using DNS Challenge provider: %s", a.DNSChallenge.Provider)
 
-		err = dnsOverrideDelay(a.DNSChallenge.DelayBeforeCheck)
-		if err != nil {
-			return nil, err
-		}
-
-		acmeprovider.SetRecursiveNameServers(a.DNSChallenge.Resolvers)
-		acmeprovider.SetPropagationCheck(a.DNSChallenge.DisablePropagationCheck)
-
-		var provider acme.ChallengeProvider
+		var provider challenge.Provider
 		provider, err = dns.NewDNSChallengeProviderByName(a.DNSChallenge.Provider)
 		if err != nil {
 			return nil, err
 		}
 
-		client.ExcludeChallenges([]acme.Challenge{acme.HTTP01, acme.TLSALPN01})
-		err = client.SetChallengeProvider(acme.DNS01, provider)
+		err = client.Challenge.SetDNS01Provider(provider,
+			dns01.CondOption(len(a.DNSChallenge.Resolvers) > 0, dns01.AddRecursiveNameservers(a.DNSChallenge.Resolvers)),
+			dns01.CondOption(a.DNSChallenge.DisablePropagationCheck || a.DNSChallenge.DelayBeforeCheck > 0,
+				dns01.AddPreCheck(func(_, _ string) (bool, error) {
+					if a.DNSChallenge.DelayBeforeCheck > 0 {
+						log.Debugf("Delaying %d rather than validating DNS propagation now.", a.DNSChallenge.DelayBeforeCheck)
+						time.Sleep(time.Duration(a.DNSChallenge.DelayBeforeCheck))
+					}
+					return true, nil
+				})),
+		)
 		return client, err
 	}
 
@@ -469,17 +464,16 @@ func (a *ACME) buildACMEClient(account *Account) (*acme.Client, error) {
 	if a.HTTPChallenge != nil && len(a.HTTPChallenge.EntryPoint) > 0 {
 		log.Debug("Using HTTP Challenge provider.")
 
-		client.ExcludeChallenges([]acme.Challenge{acme.DNS01, acme.TLSALPN01})
 		a.challengeHTTPProvider = &challengeHTTPProvider{store: a.store}
-		err = client.SetChallengeProvider(acme.HTTP01, a.challengeHTTPProvider)
+		err = client.Challenge.SetHTTP01Provider(a.challengeHTTPProvider)
 		return client, err
 	}
 
 	// TLS Challenge
 	if a.TLSChallenge != nil {
 		log.Debug("Using TLS Challenge provider.")
-		client.ExcludeChallenges([]acme.Challenge{acme.HTTP01, acme.DNS01})
-		err = client.SetChallengeProvider(acme.TLSALPN01, a.challengeTLSProvider)
+
+		err = client.Challenge.SetTLSALPN01Provider(a.challengeTLSProvider)
 		return client, err
 	}
 
@@ -551,7 +545,7 @@ func (a *ACME) LoadCertificateForDomains(domains []string) {
 		a.addResolvingDomains(uncheckedDomains)
 		defer a.removeResolvingDomains(uncheckedDomains)
 
-		certificate, err := a.getDomainsCertificates(uncheckedDomains)
+		cert, err := a.getDomainsCertificates(uncheckedDomains)
 		if err != nil {
 			log.Errorf("Error getting ACME certificates %+v : %v", uncheckedDomains, err)
 			return
@@ -570,7 +564,7 @@ func (a *ACME) LoadCertificateForDomains(domains []string) {
 			domain = types.Domain{Main: uncheckedDomains[0]}
 		}
 		account = object.(*Account)
-		_, err = account.DomainsCertificate.addCertificateForDomains(certificate, domain)
+		_, err = account.DomainsCertificate.addCertificateForDomains(cert, domain)
 		if err != nil {
 			log.Errorf("Error adding ACME certificates %+v : %v", uncheckedDomains, err)
 			return
@@ -698,7 +692,7 @@ func (a *ACME) getDomainsCertificates(domains []string) (*Certificate, error) {
 	var cleanDomains []string
 	for _, domain := range domains {
 		canonicalDomain := types.CanonicalDomain(domain)
-		cleanDomain := acme.UnFqdn(canonicalDomain)
+		cleanDomain := dns01.UnFqdn(canonicalDomain)
 		if canonicalDomain != cleanDomain {
 			log.Warnf("FQDN detected, please remove the trailing dot: %s", canonicalDomain)
 		}
@@ -708,18 +702,24 @@ func (a *ACME) getDomainsCertificates(domains []string) (*Certificate, error) {
 	log.Debugf("Loading ACME certificates %s...", cleanDomains)
 	bundle := true
 
-	certificate, err := a.client.ObtainCertificate(cleanDomains, bundle, nil, OSCPMustStaple)
+	request := certificate.ObtainRequest{
+		Domains:    cleanDomains,
+		Bundle:     bundle,
+		MustStaple: OSCPMustStaple,
+	}
+
+	cert, err := a.client.Certificate.Obtain(request)
 	if err != nil {
 		return nil, fmt.Errorf("cannot obtain certificates: %+v", err)
 	}
 
 	log.Debugf("Loaded ACME certificates %s", cleanDomains)
 	return &Certificate{
-		Domain:        certificate.Domain,
-		CertURL:       certificate.CertURL,
-		CertStableURL: certificate.CertStableURL,
-		PrivateKey:    certificate.PrivateKey,
-		Certificate:   certificate.Certificate,
+		Domain:        cert.Domain,
+		CertURL:       cert.CertURL,
+		CertStableURL: cert.CertStableURL,
+		PrivateKey:    cert.PrivateKey,
+		Certificate:   cert.Certificate,
 	}, nil
 }
 
@@ -751,12 +751,6 @@ func (a *ACME) getValidDomains(domains []string, wildcardAllowed bool) ([]string
 			return nil, fmt.Errorf("unable to generate a wildcard certificate for domain %q : ACME does not allow '*.*' wildcard domain", strings.Join(domains, ","))
 		}
 	}
-	for _, san := range domains[1:] {
-		if strings.HasPrefix(san, "*") {
-			return nil, fmt.Errorf("unable to generate a certificate for domains %q: SANs can not be a wildcard domain", strings.Join(domains, ","))
-
-		}
-	}
 
 	domains = fun.Map(types.CanonicalDomain, domains).([]string)
 	return domains, nil

acme/acme_test.go

@@ -15,7 +15,6 @@ import (
 	"github.com/containous/traefik/tls/generate"
 	"github.com/containous/traefik/types"
 	"github.com/stretchr/testify/assert"
-	"github.com/xenolf/lego/acme"
 )
 
 func TestDomainsSet(t *testing.T) {
@@ -258,39 +257,10 @@ func TestRemoveDuplicates(t *testing.T) {
 	}
 }
 
-func TestNoPreCheckOverride(t *testing.T) {
-	acme.PreCheckDNS = nil // Irreversable - but not expecting real calls into this during testing process
-	err := dnsOverrideDelay(0)
-	if err != nil {
-		t.Errorf("Error in dnsOverrideDelay :%v", err)
-	}
-	if acme.PreCheckDNS != nil {
-		t.Error("Unexpected change to acme.PreCheckDNS when leaving DNS verification as is.")
-	}
-}
-
-func TestSillyPreCheckOverride(t *testing.T) {
-	err := dnsOverrideDelay(-5)
-	if err == nil {
-		t.Error("Missing expected error in dnsOverrideDelay!")
-	}
-}
-
-func TestPreCheckOverride(t *testing.T) {
-	acme.PreCheckDNS = nil // Irreversable - but not expecting real calls into this during testing process
-	err := dnsOverrideDelay(5)
-	if err != nil {
-		t.Errorf("Error in dnsOverrideDelay :%v", err)
-	}
-	if acme.PreCheckDNS == nil {
-		t.Error("No change to acme.PreCheckDNS when meant to be adding enforcing override function.")
-	}
-}
-
 func TestAcmeClientCreation(t *testing.T) {
-	acme.PreCheckDNS = nil // Irreversable - but not expecting real calls into this during testing process
 	// Lengthy setup to avoid external web requests - oh for easier golang testing!
 	account := &Account{Email: "f@f"}
+
 	account.PrivateKey, _ = base64.StdEncoding.DecodeString(`
 MIIBPAIBAAJBAMp2Ni92FfEur+CAvFkgC12LT4l9D53ApbBpDaXaJkzzks+KsLw9zyAxvlrfAyTCQ
 7tDnEnIltAXyQ0uOFUUdcMCAwEAAQJAK1FbipATZcT9cGVa5x7KD7usytftLW14heQUPXYNV80r/3
@@ -298,8 +268,9 @@ lmnpvjL06dffRpwkYeN8DATQF/QOcy3NNNGDw/4QIhAPAKmiZFxA/qmRXsuU8Zhlzf16WrNZ68K64
 asn/h3qZrAiEA1+wFR3WXCPIolOvd7AHjfgcTKQNkoMPywU4FYUNQ1AkCIQDv8yk0qPjckD6HVCPJ
 llJh9MC0svjevGtNlxJoE3lmEQIhAKXy1wfZ32/XtcrnENPvi6lzxI0T94X7s5pP3aCoPPoJAiEAl
 cijFkALeQp/qyeXdFld2v9gUN3eCgljgcl0QweRoIc=---`)
+
 	ts := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
-		w.Write([]byte(`{
+		_, err := w.Write([]byte(`{
   "GPHhmRVEDas": "https://community.letsencrypt.org/t/adding-random-entries-to-the-directory/33417",
   "keyChange": "https://foo/acme/key-change",
   "meta": {
@@ -310,9 +281,20 @@ cijFkALeQp/qyeXdFld2v9gUN3eCgljgcl0QweRoIc=---`)
   "newOrder": "https://foo/acme/new-order",
   "revokeCert": "https://foo/acme/revoke-cert"
 }`))
+		if err != nil {
+			http.Error(w, err.Error(), http.StatusInternalServerError)
+		}
 	}))
 	defer ts.Close()
-	a := ACME{DNSChallenge: &acmeprovider.DNSChallenge{Provider: "manual", DelayBeforeCheck: 10}, CAServer: ts.URL}
+
+	a := ACME{
+		CAServer: ts.URL,
+		DNSChallenge: &acmeprovider.DNSChallenge{
+			Provider:                "manual",
+			DelayBeforeCheck:        10,
+			DisablePropagationCheck: true,
+		},
+	}
 
 	client, err := a.buildACMEClient(account)
 	if err != nil {
@@ -321,9 +303,6 @@ cijFkALeQp/qyeXdFld2v9gUN3eCgljgcl0QweRoIc=---`)
 	if client == nil {
 		t.Error("No client from buildACMEClient!")
 	}
-	if acme.PreCheckDNS == nil {
-		t.Error("No change to acme.PreCheckDNS when meant to be adding enforcing override function.")
-	}
 }
 
 func TestAcme_getUncheckedCertificates(t *testing.T) {
@@ -440,12 +419,12 @@ func TestAcme_getValidDomain(t *testing.T) {
 			expectedDomains: []string{"*.traefik.wtf", "traefik.wtf"},
 		},
 		{
-			desc:            "unexpected SANs",
+			desc:            "wildcard SANs",
 			domains:         []string{"*.traefik.wtf", "*.acme.wtf"},
 			dnsChallenge:    &acmeprovider.DNSChallenge{},
 			wildcardAllowed: true,
-			expectedErr:     "unable to generate a certificate for domains \"*.traefik.wtf,*.acme.wtf\": SANs can not be a wildcard domain",
-			expectedDomains: nil,
+			expectedErr:     "",
+			expectedDomains: []string{"*.traefik.wtf", "*.acme.wtf"},
 		},
 	}
 	for _, test := range testCases {

acme/challenge_http_provider.go

@@ -9,10 +9,10 @@ import (
 	"github.com/containous/traefik/cluster"
 	"github.com/containous/traefik/log"
 	"github.com/containous/traefik/safe"
-	"github.com/xenolf/lego/acme"
+	"github.com/go-acme/lego/challenge"
 )
 
-var _ acme.ChallengeProviderTimeout = (*challengeHTTPProvider)(nil)
+var _ challenge.ProviderTimeout = (*challengeHTTPProvider)(nil)
 
 type challengeHTTPProvider struct {
 	store cluster.Store

acme/challenge_tls_provider.go

@@ -11,10 +11,11 @@ import (
 	"github.com/containous/traefik/cluster"
 	"github.com/containous/traefik/log"
 	"github.com/containous/traefik/safe"
-	"github.com/xenolf/lego/acme"
+	"github.com/go-acme/lego/challenge"
+	"github.com/go-acme/lego/challenge/tlsalpn01"
 )
 
-var _ acme.ChallengeProviderTimeout = (*challengeTLSProvider)(nil)
+var _ challenge.ProviderTimeout = (*challengeTLSProvider)(nil)
 
 type challengeTLSProvider struct {
 	store cluster.Store
@@ -113,7 +114,7 @@ func (c *challengeTLSProvider) Timeout() (timeout, interval time.Duration) {
 }
 
 func tlsALPN01ChallengeCert(domain, keyAuth string) (*ChallengeCert, error) {
-	tempCertPEM, rsaPrivPEM, err := acme.TLSALPNChallengeBlocks(domain, keyAuth)
+	tempCertPEM, rsaPrivPEM, err := tlsalpn01.ChallengeBlocks(domain, keyAuth)
 	if err != nil {
 		return nil, err
 	}

anonymize/anonymize_config_test.go

@@ -31,7 +31,7 @@ import (
 	"github.com/containous/traefik/safe"
 	traefiktls "github.com/containous/traefik/tls"
 	"github.com/containous/traefik/types"
-	"github.com/elazarl/go-bindata-assetfs"
+	assetfs "github.com/elazarl/go-bindata-assetfs"
 	"github.com/thoas/stats"
 )
 

api/dashboard.go

@@ -5,7 +5,7 @@ import (
 
 	"github.com/containous/mux"
 	"github.com/containous/traefik/log"
-	"github.com/elazarl/go-bindata-assetfs"
+	assetfs "github.com/elazarl/go-bindata-assetfs"
 )
 
 // DashboardHandler expose dashboard routes

api/handler.go

@@ -9,7 +9,7 @@ import (
 	"github.com/containous/traefik/safe"
 	"github.com/containous/traefik/types"
 	"github.com/containous/traefik/version"
-	"github.com/elazarl/go-bindata-assetfs"
+	assetfs "github.com/elazarl/go-bindata-assetfs"
 	thoas_stats "github.com/thoas/stats"
 	"github.com/unrolled/render"
 )

autogen/gentemplates/gen.go

@@ -236,6 +236,18 @@ var _templatesConsul_catalogTmpl = []byte(`[backends]
           organization = {{ $subject.Organization }}
           commonName = {{ $subject.CommonName }}
           serialNumber = {{ $subject.SerialNumber }}
+          domainComponent = {{ $subject.DomainComponent }}
+        {{end}}
+        {{ $issuer := $infos.Subject }}
+        {{if $issuer }}
+        [frontends."frontend-{{ $service.ServiceName }}".passTLSClientCert.infos.issuer]
+          country = {{ $issuer.Country }}
+          province = {{ $issuer.Province }}
+          locality = {{ $issuer.Locality }}
+          organization = {{ $issuer.Organization }}
+          commonName = {{ $issuer.CommonName }}
+          serialNumber = {{ $issuer.SerialNumber }}
+          domainComponent = {{ $issuer.DomainComponent }}
         {{end}}
       {{end}}
     {{end}}
@@ -719,6 +731,18 @@ var _templatesDockerTmpl = []byte(`{{$backendServers := .Servers}}
           organization = {{ $subject.Organization }}
           commonName = {{ $subject.CommonName }}
           serialNumber = {{ $subject.SerialNumber }}
+          domainComponent = {{ $subject.DomainComponent }}
+        {{end}}
+        {{ $issuer := $infos.Issuer }}
+        {{if $issuer }}
+        [frontends."frontend-{{ $frontendName }}".passTLSClientCert.infos.issuer]
+          country = {{ $issuer.Country }}
+          province = {{ $issuer.Province }}
+          locality = {{ $issuer.Locality }}
+          organization = {{ $issuer.Organization }}
+          commonName = {{ $issuer.CommonName }}
+          serialNumber = {{ $issuer.SerialNumber }}
+          domainComponent = {{ $issuer.DomainComponent }}
         {{end}}
       {{end}}
     {{end}}
@@ -1055,6 +1079,18 @@ var _templatesEcsTmpl = []byte(`[backends]
           organization = {{ $subject.Organization }}
           commonName = {{ $subject.CommonName }}
           serialNumber = {{ $subject.SerialNumber }}
+          domainComponent = {{ $subject.DomainComponent }}
+        {{end}}
+        {{ $issuer := $infos.Issuer }}
+        {{if $issuer }}
+        [frontends."frontend-{{ $frontendName }}".passTLSClientCert.infos.issuer]
+          country = {{ $issuer.Country }}
+          province = {{ $issuer.Province }}
+          locality = {{ $issuer.Locality }}
+          organization = {{ $issuer.Organization }}
+          commonName = {{ $issuer.CommonName }}
+          serialNumber = {{ $issuer.SerialNumber }}
+          domainComponent = {{ $issuer.DomainComponent }}
         {{end}}
       {{end}}
     {{end}}
@@ -1280,7 +1316,7 @@ var _templatesKubernetesTmpl = []byte(`[backends]
 
     {{if $backend.ResponseForwarding }}
     [backends."{{ $backendName }}".responseForwarding]
-      flushInterval = "{{ $backend.responseForwarding.FlushInterval }}"
+      flushInterval = "{{ $backend.ResponseForwarding.FlushInterval }}"
     {{end}}
 
     [backends."{{ $backendName }}".loadBalancer]
@@ -1329,7 +1365,9 @@ var _templatesKubernetesTmpl = []byte(`[backends]
 
     {{if $frontend.Auth }}
     [frontends."{{ $frontendName }}".auth]
-      headerField = "X-WebAuth-User"
+      {{if $frontend.Auth.HeaderField }}
+      headerField = "{{ $frontend.Auth.HeaderField }}"
+      {{end}}
 
       {{if $frontend.Auth.Basic }}
       [frontends."{{ $frontendName }}".auth.basic]
@@ -1422,6 +1460,18 @@ var _templatesKubernetesTmpl = []byte(`[backends]
           organization = {{ $subject.Organization }}
           commonName = {{ $subject.CommonName }}
           serialNumber = {{ $subject.SerialNumber }}
+          domainComponent = {{ $subject.DomainComponent }}
+        {{end}}
+        {{ $issuer := $infos.Subject }}
+        {{if $issuer }}
+        [frontends."{{ $frontendName }}".passTLSClientCert.infos.issuer]
+          country = {{ $issuer.Country }}
+          province = {{ $issuer.Province }}
+          locality = {{ $issuer.Locality }}
+          organization = {{ $issuer.Organization }}
+          commonName = {{ $issuer.CommonName }}
+          serialNumber = {{ $issuer.SerialNumber }}
+          domainComponent = {{ $issuer.DomainComponent }}
         {{end}}
       {{end}}
     {{end}}
@@ -1609,6 +1659,18 @@ var _templatesKvTmpl = []byte(`[backends]
           organization = {{ $subject.Organization }}
           commonName = {{ $subject.CommonName }}
           serialNumber = {{ $subject.SerialNumber }}
+          domainComponent = {{ $subject.DomainComponent }}
+        {{end}}
+        {{ $issuer := $infos.Subject }}
+        {{if $issuer }}
+        [frontends."{{ $frontendName }}".passTLSClientCert.infos.issuer]
+          country = {{ $issuer.Country }}
+          province = {{ $issuer.Province }}
+          locality = {{ $issuer.Locality }}
+          organization = {{ $issuer.Organization }}
+          commonName = {{ $issuer.CommonName }}
+          serialNumber = {{ $issuer.SerialNumber }}
+          domainComponent = {{ $issuer.DomainComponent }}
         {{end}}
       {{end}}
     {{end}}
@@ -1985,6 +2047,18 @@ var _templatesMarathonTmpl = []byte(`{{ $apps := .Applications }}
           organization = {{ $subject.Organization }}
           commonName = {{ $subject.CommonName }}
           serialNumber = {{ $subject.SerialNumber }}
+          domainComponent = {{ $subject.DomainComponent }}
+        {{end}}
+        {{ $issuer := $infos.Subject }}
+        {{if $issuer }}
+        [frontends."{{ $frontendName }}".passTLSClientCert.infos.issuer]
+          country = {{ $issuer.Country }}
+          province = {{ $issuer.Province }}
+          locality = {{ $issuer.Locality }}
+          organization = {{ $issuer.Organization }}
+          commonName = {{ $issuer.CommonName }}
+          serialNumber = {{ $issuer.SerialNumber }}
+          domainComponent = {{ $issuer.DomainComponent }}
         {{end}}
       {{end}}
     {{end}}
@@ -2305,6 +2379,18 @@ var _templatesMesosTmpl = []byte(`[backends]
           organization = {{ $subject.Organization }}
           commonName = {{ $subject.CommonName }}
           serialNumber = {{ $subject.SerialNumber }}
+          domainComponent = {{ $subject.DomainComponent }}
+        {{end}}
+        {{ $issuer := $infos.Subject }}
+        {{if $issuer }}
+        [frontends."frontend-{{ $frontendName }}".passTLSClientCert.infos.issuer]
+          country = {{ $issuer.Country }}
+          province = {{ $issuer.Province }}
+          locality = {{ $issuer.Locality }}
+          organization = {{ $issuer.Organization }}
+          commonName = {{ $issuer.CommonName }}
+          serialNumber = {{ $issuer.SerialNumber }}
+          domainComponent = {{ $issuer.DomainComponent }}
         {{end}}
       {{end}}
     {{end}}
@@ -2678,6 +2764,18 @@ var _templatesRancherTmpl = []byte(`{{ $backendServers := .Backends }}
           organization = {{ $subject.Organization }}
           commonName = {{ $subject.CommonName }}
           serialNumber = {{ $subject.SerialNumber }}
+          domainComponent = {{ $subject.DomainComponent }}
+        {{end}}
+        {{ $issuer := $infos.Subject }}
+        {{if $issuer }}
+        [frontends."frontend-{{ $frontendName }}".passTLSClientCert.infos.issuer]
+          country = {{ $issuer.Country }}
+          province = {{ $issuer.Province }}
+          locality = {{ $issuer.Locality }}
+          organization = {{ $issuer.Organization }}
+          commonName = {{ $issuer.CommonName }}
+          serialNumber = {{ $issuer.SerialNumber }}
+          domainComponent = {{ $issuer.DomainComponent }}
         {{end}}
       {{end}}
     {{end}}

build.Dockerfile

@@ -1,17 +1,21 @@
-FROM golang:1.11-alpine
+FROM golang:1.12-alpine
 
 RUN apk --update upgrade \
-&& apk --no-cache --no-progress add git mercurial bash gcc musl-dev curl tar \
-&& rm -rf /var/cache/apk/*
+    && apk --no-cache --no-progress add git mercurial bash gcc musl-dev curl tar ca-certificates tzdata \
+    && update-ca-certificates \
+    && rm -rf /var/cache/apk/*
 
-RUN go get github.com/containous/go-bindata/... \
-&& go get golang.org/x/lint/golint \
-&& go get github.com/kisielk/errcheck \
+RUN go get golang.org/x/lint/golint \
 && go get github.com/client9/misspell/cmd/misspell
 
 # Which docker version to test on
-ARG DOCKER_VERSION=17.03.2
-ARG DEP_VERSION=0.4.1
+ARG DOCKER_VERSION=18.09.7
+ARG DEP_VERSION=0.5.1
+
+# Download go-bindata binary to bin folder in $GOPATH
+RUN mkdir -p /usr/local/bin \
+    && curl -fsSL -o /usr/local/bin/go-bindata https://github.com/containous/go-bindata/releases/download/v1.0.0/go-bindata \
+    && chmod +x /usr/local/bin/go-bindata
 
 # Download dep binary to bin folder in $GOPATH
 RUN mkdir -p /usr/local/bin \
@@ -20,7 +24,7 @@ RUN mkdir -p /usr/local/bin \
 
 # Download docker
 RUN mkdir -p /usr/local/bin \
-    && curl -fL https://download.docker.com/linux/static/stable/x86_64/docker-${DOCKER_VERSION}-ce.tgz \
+    && curl -fL https://download.docker.com/linux/static/stable/x86_64/docker-${DOCKER_VERSION}.tgz \
     | tar -xzC /usr/local/bin --transform 's#^.+/##x'
 
 WORKDIR /go/src/github.com/containous/traefik

cluster/datastore.go

@@ -13,7 +13,7 @@ import (
 	"github.com/containous/traefik/job"
 	"github.com/containous/traefik/log"
 	"github.com/containous/traefik/safe"
-	"github.com/satori/go.uuid"
+	"github.com/google/uuid"
 )
 
 // Metadata stores Object plus metadata
@@ -125,7 +125,7 @@ func (d *Datastore) reload() error {
 
 // Begin creates a transaction with the KV store.
 func (d *Datastore) Begin() (Transaction, Object, error) {
-	id := uuid.NewV4().String()
+	id := uuid.New().String()
 	log.Debugf("Transaction %s begins", id)
 	remoteLock, err := d.kv.NewLock(d.lockKey, &store.LockOptions{TTL: 20 * time.Second, Value: []byte(id)})
 	if err != nil {

cmd/configuration.go

@@ -4,7 +4,7 @@ import (
 	"time"
 
 	"github.com/containous/flaeg"
-	"github.com/containous/traefik-extra-service-fabric"
+	servicefabric "github.com/containous/traefik-extra-service-fabric"
 	"github.com/containous/traefik/api"
 	"github.com/containous/traefik/configuration"
 	"github.com/containous/traefik/middlewares/accesslog"
@@ -46,6 +46,7 @@ func NewTraefikDefaultPointersConfiguration() *TraefikConfiguration {
 	defaultDocker.ExposedByDefault = true
 	defaultDocker.Endpoint = "unix:///var/run/docker.sock"
 	defaultDocker.SwarmMode = false
+	defaultDocker.SwarmModeRefreshSeconds = 15
 
 	// default File
 	var defaultFile file.Provider
@@ -110,6 +111,7 @@ func NewTraefikDefaultPointersConfiguration() *TraefikConfiguration {
 	defaultConsulCatalog.Prefix = "traefik"
 	defaultConsulCatalog.FrontEndRule = "Host:{{.ServiceName}}.{{.Domain}}"
 	defaultConsulCatalog.Stale = false
+	defaultConsulCatalog.StrictChecks = true
 
 	// default Etcd
 	var defaultEtcd etcd.Provider
@@ -223,10 +225,11 @@ func NewTraefikDefaultPointersConfiguration() *TraefikConfiguration {
 		ServiceName:   "traefik",
 		SpanNameLimit: 0,
 		Jaeger: &jaeger.Config{
-			SamplingServerURL:  "http://localhost:5778/sampling",
-			SamplingType:       "const",
-			SamplingParam:      1.0,
-			LocalAgentHostPort: "127.0.0.1:6831",
+			SamplingServerURL:      "http://localhost:5778/sampling",
+			SamplingType:           "const",
+			SamplingParam:          1.0,
+			LocalAgentHostPort:     "127.0.0.1:6831",
+			TraceContextHeaderName: "uber-trace-id",
 		},
 		Zipkin: &zipkin.Config{
 			HTTPEndpoint: "http://localhost:9411/api/v1/spans",
@@ -238,6 +241,7 @@ func NewTraefikDefaultPointersConfiguration() *TraefikConfiguration {
 			LocalAgentHostPort: "localhost:8126",
 			GlobalTag:          "",
 			Debug:              false,
+			PrioritySampling:   false,
 		},
 	}
 

cmd/traefik/traefik.go

@@ -34,7 +34,7 @@ import (
 	"github.com/containous/traefik/types"
 	"github.com/containous/traefik/version"
 	"github.com/coreos/go-systemd/daemon"
-	"github.com/elazarl/go-bindata-assetfs"
+	assetfs "github.com/elazarl/go-bindata-assetfs"
 	"github.com/ogier/pflag"
 	"github.com/sirupsen/logrus"
 	"github.com/vulcand/oxy/roundrobin"

configuration/configuration.go

@@ -6,7 +6,7 @@ import (
 	"time"
 
 	"github.com/containous/flaeg"
-	"github.com/containous/traefik-extra-service-fabric"
+	servicefabric "github.com/containous/traefik-extra-service-fabric"
 	"github.com/containous/traefik/acme"
 	"github.com/containous/traefik/api"
 	"github.com/containous/traefik/log"
@@ -33,8 +33,9 @@ import (
 	"github.com/containous/traefik/provider/zk"
 	"github.com/containous/traefik/tls"
 	"github.com/containous/traefik/types"
+	"github.com/go-acme/lego/challenge/dns01"
 	"github.com/pkg/errors"
-	lego "github.com/xenolf/lego/acme"
+	jaegercli "github.com/uber/jaeger-client-go"
 )
 
 const (
@@ -211,6 +212,12 @@ func (gc *GlobalConfiguration) SetEffectiveConfiguration(configFile string) {
 			}
 		}
 
+		// Thanks to SSLv3 being enabled by mistake in golang 1.12,
+		// If no minVersion is set, apply TLS1.0 as the minimum.
+		if entryPoint.TLS != nil && len(entryPoint.TLS.MinVersion) == 0 {
+			entryPoint.TLS.MinVersion = "VersionTLS10"
+		}
+
 		if entryPoint.TLS != nil && entryPoint.TLS.DefaultCertificate == nil && len(entryPoint.TLS.Certificates) > 0 {
 			log.Infof("No tls.defaultCertificate given for %s: using the first item in tls.certificates as a fallback.", entryPointName)
 			entryPoint.TLS.DefaultCertificate = &entryPoint.TLS.Certificates[0]
@@ -235,6 +242,10 @@ func (gc *GlobalConfiguration) SetEffectiveConfiguration(configFile string) {
 		} else {
 			gc.Docker.TemplateVersion = 2
 		}
+
+		if gc.Docker.SwarmModeRefreshSeconds <= 0 {
+			gc.Docker.SwarmModeRefreshSeconds = 15
+		}
 	}
 
 	if gc.Marathon != nil {
@@ -331,10 +342,11 @@ func (gc *GlobalConfiguration) initTracing() {
 		case jaeger.Name:
 			if gc.Tracing.Jaeger == nil {
 				gc.Tracing.Jaeger = &jaeger.Config{
-					SamplingServerURL:  "http://localhost:5778/sampling",
-					SamplingType:       "const",
-					SamplingParam:      1.0,
-					LocalAgentHostPort: "127.0.0.1:6831",
+					SamplingServerURL:      "http://localhost:5778/sampling",
+					SamplingType:           "const",
+					SamplingParam:          1.0,
+					LocalAgentHostPort:     "127.0.0.1:6831",
+					TraceContextHeaderName: jaegercli.TraceContextHeaderName,
 				}
 			}
 			if gc.Tracing.Zipkin != nil {
@@ -368,6 +380,7 @@ func (gc *GlobalConfiguration) initTracing() {
 					LocalAgentHostPort: "localhost:8126",
 					GlobalTag:          "",
 					Debug:              false,
+					PrioritySampling:   false,
 				}
 			}
 			if gc.Tracing.Zipkin != nil {
@@ -405,11 +418,11 @@ func (gc *GlobalConfiguration) initACMEProvider() {
 		}
 
 		for _, domain := range gc.ACME.Domains {
-			if domain.Main != lego.UnFqdn(domain.Main) {
+			if domain.Main != dns01.UnFqdn(domain.Main) {
 				log.Warnf("FQDN detected, please remove the trailing dot: %s", domain.Main)
 			}
 			for _, san := range domain.SANs {
-				if san != lego.UnFqdn(san) {
+				if san != dns01.UnFqdn(san) {
 					log.Warnf("FQDN detected, please remove the trailing dot: %s", san)
 				}
 			}

configuration/configuration_test.go

@@ -12,6 +12,7 @@ import (
 	"github.com/containous/traefik/provider"
 	acmeprovider "github.com/containous/traefik/provider/acme"
 	"github.com/containous/traefik/provider/file"
+	"github.com/containous/traefik/tls"
 	"github.com/stretchr/testify/assert"
 )
 
@@ -142,10 +143,11 @@ func TestSetEffectiveConfigurationTracing(t *testing.T) {
 			expected: &tracing.Tracing{
 				Backend: "jaeger",
 				Jaeger: &jaeger.Config{
-					SamplingServerURL:  "http://localhost:5778/sampling",
-					SamplingType:       "const",
-					SamplingParam:      1.0,
-					LocalAgentHostPort: "127.0.0.1:6831",
+					SamplingServerURL:      "http://localhost:5778/sampling",
+					SamplingType:           "const",
+					SamplingParam:          1.0,
+					LocalAgentHostPort:     "127.0.0.1:6831",
+					TraceContextHeaderName: "uber-trace-id",
 				},
 				Zipkin: nil,
 			},
@@ -155,10 +157,11 @@ func TestSetEffectiveConfigurationTracing(t *testing.T) {
 			tracing: &tracing.Tracing{
 				Backend: "zipkin",
 				Jaeger: &jaeger.Config{
-					SamplingServerURL:  "http://localhost:5778/sampling",
-					SamplingType:       "const",
-					SamplingParam:      1.0,
-					LocalAgentHostPort: "127.0.0.1:6831",
+					SamplingServerURL:      "http://localhost:5778/sampling",
+					SamplingType:           "const",
+					SamplingParam:          1.0,
+					LocalAgentHostPort:     "127.0.0.1:6831",
+					TraceContextHeaderName: "uber-trace-id",
 				},
 			},
 			expected: &tracing.Tracing{
@@ -177,10 +180,11 @@ func TestSetEffectiveConfigurationTracing(t *testing.T) {
 			tracing: &tracing.Tracing{
 				Backend: "zipkin",
 				Jaeger: &jaeger.Config{
-					SamplingServerURL:  "http://localhost:5778/sampling",
-					SamplingType:       "const",
-					SamplingParam:      1.0,
-					LocalAgentHostPort: "127.0.0.1:6831",
+					SamplingServerURL:      "http://localhost:5778/sampling",
+					SamplingType:           "const",
+					SamplingParam:          1.0,
+					LocalAgentHostPort:     "127.0.0.1:6831",
+					TraceContextHeaderName: "uber-trace-id",
 				},
 				Zipkin: &zipkin.Config{
 					HTTPEndpoint: "http://powpow:9411/api/v1/spans",
@@ -266,3 +270,69 @@ func TestInitACMEProvider(t *testing.T) {
 		})
 	}
 }
+
+func TestSetEffectiveConfigurationTLSMinVersion(t *testing.T) {
+	testCases := []struct {
+		desc     string
+		provided EntryPoint
+		expected EntryPoint
+	}{
+		{
+			desc: "Entrypoint with no TLS",
+			provided: EntryPoint{
+				Address: ":80",
+			},
+			expected: EntryPoint{
+				Address:          ":80",
+				ForwardedHeaders: &ForwardedHeaders{Insecure: true},
+			},
+		},
+		{
+			desc: "Entrypoint with TLS Specifying MinVersion",
+			provided: EntryPoint{
+				Address: ":443",
+				TLS: &tls.TLS{
+					MinVersion: "VersionTLS12",
+				},
+			},
+			expected: EntryPoint{
+				Address:          ":443",
+				ForwardedHeaders: &ForwardedHeaders{Insecure: true},
+				TLS: &tls.TLS{
+					MinVersion: "VersionTLS12",
+				},
+			},
+		},
+		{
+			desc: "Entrypoint with TLS without Specifying MinVersion",
+			provided: EntryPoint{
+				Address: ":443",
+				TLS:     &tls.TLS{},
+			},
+			expected: EntryPoint{
+				Address:          ":443",
+				ForwardedHeaders: &ForwardedHeaders{Insecure: true},
+				TLS: &tls.TLS{
+					MinVersion: "VersionTLS10",
+				},
+			},
+		},
+	}
+
+	for _, test := range testCases {
+		test := test
+		t.Run(test.desc, func(t *testing.T) {
+			t.Parallel()
+
+			gc := &GlobalConfiguration{
+				EntryPoints: map[string]*EntryPoint{
+					"foo": &test.provided,
+				},
+			}
+
+			gc.SetEffectiveConfiguration(defaultConfigFile)
+
+			assert.Equal(t, &test.expected, gc.EntryPoints["foo"])
+		})
+	}
+}

contrib/scripts/dumpcerts.sh

@@ -155,7 +155,8 @@ echo -e "-----BEGIN RSA PRIVATE KEY-----\n${priv}\n-----END RSA PRIVATE KEY-----
    | openssl rsa -inform pem -out "${pdir}/letsencrypt.key"
 
 # Process the certificates for each of the domains in acme.json
-for domain in $(jq -r '.Certificates[].Domain.Main' ${acmefile}); do
+domains=$(jq -r '.Certificates[].Domain.Main' ${acmefile}) || bad_acme
+for domain in $domains; do
 	# Traefik stores a cert bundle for each domain.  Within this cert
 	# bundle there is both proper the certificate and the Let's Encrypt CA
 	echo "Extracting cert bundle for ${domain}"

contrib/systemd/traefik.service

@@ -1,11 +1,41 @@
 [Unit]
 Description=Traefik
+Documentation=https://docs.traefik.io
+#After=network-online.target
+#AssertFileIsExecutable=/usr/bin/traefik
+#AssertPathExists=/etc/traefik/traefik.toml
 
 [Service]
+# Run traefik as its own user (create new user with: useradd -r -s /bin/false -U -M traefik)
+#User=traefik
+#AmbientCapabilities=CAP_NET_BIND_SERVICE
+
+# configure service behavior
 Type=notify
-ExecStart=/usr/bin/traefik --configFile=/etc/traefik.toml
+#ExecStart=/usr/bin/traefik --configFile=/etc/traefik/traefik.toml
 Restart=always
 WatchdogSec=1s
 
+# lock down system access
+# prohibit any operating system and configuration modification
+#ProtectSystem=strict
+# create separate, new (and empty) /tmp and /var/tmp filesystems
+#PrivateTmp=true
+# make /home directories inaccessible
+#ProtectHome=true
+# turns off access to physical devices (/dev/...)
+#PrivateDevices=true
+# make kernel settings (procfs and sysfs) read-only
+#ProtectKernelTunables=true
+# make cgroups /sys/fs/cgroup read-only
+#ProtectControlGroups=true
+
+# allow writing of acme.json
+#ReadWritePaths=/etc/traefik/acme.json
+# depending on log and entrypoint configuration, you may need to allow writing to other paths, too
+
+# limit number of processes in this unit
+#LimitNPROC=1
+
 [Install]
 WantedBy=multi-user.target

docs/basics.md

@@ -94,10 +94,13 @@ Following is the list of existing modifier rules:
 
 Matcher rules determine if a particular request should be forwarded to a backend.
 
-Separate multiple rule values by `,` (comma) in order to enable ANY semantics (i.e., forward a request if any rule matches).
-Does not work for `Headers` and `HeadersRegexp`.
+The associativity rule is the following:
 
-Separate multiple rule values by `;` (semicolon) in order to enable ALL semantics (i.e., forward a request if all rules match).
+- `,` is the `OR` operator (works **only inside a matcher**, ex: `Host:foo.com,bar.com`).
+    - i.e., forward a request if any rule matches.
+    - Does not work for `Headers` and `HeadersRegexp`.
+- `;` is the `AND` operator (works **only between matchers**, ex: `Host:foo.com;Path:/bar`) 
+    - i.e., forward a request if all rules match
 
 Following is the list of existing matcher rules along with examples:
 
@@ -234,7 +237,8 @@ The following rules are both `Matchers` and `Modifiers`, so the `Matcher` portio
 #### Priorities
 
 By default, routes will be sorted (in descending order) using rules length (to avoid path overlap):
-`PathPrefix:/foo;Host:foo.com` (length == 28) will be matched before `PathPrefixStrip:/foobar` (length == 23) will be matched before `PathPrefix:/foo,/bar` (length == 20).
+- `PathPrefix:/foo;Host:foo.com` (length == 28) will be matched before `PathPrefixStrip:/foobar` (length == 23) will be matched before `PathPrefix:/foo,/bar` (length == 20).  
+- A priority value of 0 will be ignored, so the default value will be calculated (rules length).
 
 You can customize priority by frontend. The priority value override the rule length during sorting:
 
@@ -742,12 +746,10 @@ Once a day (the first call begins 10 minutes after the start of Traefik), we col
 
 ### Show me the code !
 
-If you want to dig into more details, here is the source code of the collecting system: [collector.go](https://github.com/containous/traefik/blob/master/collector/collector.go)
+If you want to dig into more details, here is the source code of the collecting system: [collector.go](https://github.com/containous/traefik/blob/v1.7/collector/collector.go)
 
 By default we anonymize all configuration fields, except fields tagged with `export=true`.
 
-You can check all fields in the [godoc](https://godoc.org/github.com/containous/traefik/configuration#GlobalConfiguration).
-
 ### How to enable this ?
 
 You can enable the collecting system by:

docs/configuration/acme.md

@@ -271,58 +271,90 @@ Useful if internal networks block external DNS queries.
 
 ##### `provider`
 
-Here is a list of supported `provider`s, that can automate the DNS verification, along with the required environment variables and their [wildcard & root domain support](/configuration/acme/#wildcard-domains) for each. Do not hesitate to complete it.
+Here is a list of supported `provider`s, that can automate the DNS verification, along with the required environment variables and their [wildcard & root domain support](/configuration/acme/#wildcard-domains) for each.
+Do not hesitate to complete it.
+Every lego environment variable can be overridden by their respective `_FILE` counterpart, which should have a filepath to a file that contains the secret as its value.
+For example, `CF_API_EMAIL_FILE=/run/secrets/traefik_cf-api-email` could be used to provide a Cloudflare API email address as a Docker secret named `traefik_cf-api-email`.
 
-| Provider Name                                          | Provider Code  | Environment Variables                                                                                                                     | Wildcard & Root Domain Support |
-|--------------------------------------------------------|----------------|-------------------------------------------------------------------------------------------------------------------------------------------|--------------------------------|
-| [ACME DNS](https://github.com/joohoi/acme-dns)         | `acmedns`      | `ACME_DNS_API_BASE`, `ACME_DNS_STORAGE_PATH`                                                                                              | Not tested yet                 |
-| [Alibaba Cloud](https://www.vultr.com)                 | `alidns`       | `ALICLOUD_ACCESS_KEY`, `ALICLOUD_SECRET_KEY`, `ALICLOUD_REGION_ID`                                                                        | Not tested yet                 |
-| [Auroradns](https://www.pcextreme.com/aurora/dns)      | `auroradns`    | `AURORA_USER_ID`, `AURORA_KEY`, `AURORA_ENDPOINT`                                                                                         | Not tested yet                 |
-| [Azure](https://azure.microsoft.com/services/dns/)     | `azure`        | `AZURE_CLIENT_ID`, `AZURE_CLIENT_SECRET`, `AZURE_SUBSCRIPTION_ID`, `AZURE_TENANT_ID`, `AZURE_RESOURCE_GROUP`, `[AZURE_METADATA_ENDPOINT]` | Not tested yet                 |
-| [Blue Cat](https://www.bluecatnetworks.com/)           | `bluecat`      | `BLUECAT_SERVER_URL`, `BLUECAT_USER_NAME`, `BLUECAT_PASSWORD`, `BLUECAT_CONFIG_NAME`, `BLUECAT_DNS_VIEW`                                  | Not tested yet                 |
-| [Cloudflare](https://www.cloudflare.com)               | `cloudflare`   | `CF_API_EMAIL`, `CF_API_KEY` - The `Global API Key` needs to be used, not the `Origin CA Key`                                             | YES                            |
-| [CloudXNS](https://www.cloudxns.net)                   | `cloudxns`     | `CLOUDXNS_API_KEY`, `CLOUDXNS_SECRET_KEY`                                                                                                 | Not tested yet                 |
-| [DigitalOcean](https://www.digitalocean.com)           | `digitalocean` | `DO_AUTH_TOKEN`                                                                                                                           | YES                            |
-| [DNSimple](https://dnsimple.com)                       | `dnsimple`     | `DNSIMPLE_OAUTH_TOKEN`, `DNSIMPLE_BASE_URL`                                                                                               | Not tested yet                 |
-| [DNS Made Easy](https://dnsmadeeasy.com)               | `dnsmadeeasy`  | `DNSMADEEASY_API_KEY`, `DNSMADEEASY_API_SECRET`, `DNSMADEEASY_SANDBOX`                                                                    | Not tested yet                 |
-| [DNSPod](http://www.dnspod.net/)                       | `dnspod`       | `DNSPOD_API_KEY`                                                                                                                          | Not tested yet                 |
-| [DreamHost](https://www.dreamhost.com/)                | `dreamhost`    | `DREAMHOST_API_KEY`                                                                                                                       | YES                            |
-| [Duck DNS](https://www.duckdns.org/)                   | `duckdns`      | `DUCKDNS_TOKEN`                                                                                                                           | No                             |
-| [Dyn](https://dyn.com)                                 | `dyn`          | `DYN_CUSTOMER_NAME`, `DYN_USER_NAME`, `DYN_PASSWORD`                                                                                      | Not tested yet                 |
-| External Program                                       | `exec`         | `EXEC_PATH`                                                                                                                               | Not tested yet                 |
-| [Exoscale](https://www.exoscale.com)                   | `exoscale`     | `EXOSCALE_API_KEY`, `EXOSCALE_API_SECRET`, `EXOSCALE_ENDPOINT`                                                                            | YES                            |
-| [Fast DNS](https://www.akamai.com/)                    | `fastdns`      | `AKAMAI_CLIENT_TOKEN`,  `AKAMAI_CLIENT_SECRET`,  `AKAMAI_ACCESS_TOKEN`                                                                    | Not tested yet                 |
-| [Gandi](https://www.gandi.net)                         | `gandi`        | `GANDI_API_KEY`                                                                                                                           | Not tested yet                 |
-| [Gandi v5](http://doc.livedns.gandi.net)               | `gandiv5`      | `GANDIV5_API_KEY`                                                                                                                         | YES                            |
-| [Glesys](https://glesys.com/)                          | `glesys`       | `GLESYS_API_USER`, `GLESYS_API_KEY`, `GLESYS_DOMAIN`                                                                                      | Not tested yet                 |
-| [GoDaddy](https://godaddy.com/domains)                 | `godaddy`      | `GODADDY_API_KEY`, `GODADDY_API_SECRET`                                                                                                   | Not tested yet                 |
-| [Google Cloud DNS](https://cloud.google.com/dns/docs/) | `gcloud`       | `GCE_PROJECT`, `GCE_SERVICE_ACCOUNT_FILE`                                                                                                 | YES                            |
-| [hosting.de](https://www.hosting.de)                   | `hostingde`    | `HOSTINGDE_API_KEY`, `HOSTINGDE_ZONE_NAME`                                                                                                | Not tested yet                 |
-| [IIJ](https://www.iij.ad.jp/)                          | `iij`          | `IIJ_API_ACCESS_KEY`, `IIJ_API_SECRET_KEY`, `IIJ_DO_SERVICE_CODE`                                                                         | Not tested yet                 |
-| [Lightsail](https://aws.amazon.com/lightsail/)         | `lightsail`    | `AWS_ACCESS_KEY_ID`, `AWS_SECRET_ACCESS_KEY`, `DNS_ZONE`                                                                                  | Not tested yet                 |
-| [Linode](https://www.linode.com)                       | `linode`       | `LINODE_API_KEY`                                                                                                                          | Not tested yet                 |
-| [Linode v4](https://www.linode.com)                    | `linodev4`     | `LINODE_TOKEN`                                                                                                                            | Not tested yet                 |
-| manual                                                 | -              | none, but you need to run Traefik interactively, turn on `acmeLogging` to see instructions and press <kbd>Enter</kbd>.                    | YES                            |
-| [Namecheap](https://www.namecheap.com)                 | `namecheap`    | `NAMECHEAP_API_USER`, `NAMECHEAP_API_KEY`                                                                                                 | YES                            |
-| [name.com](https://www.name.com/)                      | `namedotcom`   | `NAMECOM_USERNAME`, `NAMECOM_API_TOKEN`, `NAMECOM_SERVER`                                                                                 | Not tested yet                 |
-| [Netcup](https://www.netcup.eu/)                       | `netcup`       | `NETCUP_CUSTOMER_NUMBER`, `NETCUP_API_KEY`, `NETCUP_API_PASSWORD`                                                                         | Not tested yet                 |
-| [NIFCloud](https://cloud.nifty.com/service/dns.htm)    | `nifcloud`     | `NIFCLOUD_ACCESS_KEY_ID`, `NIFCLOUD_SECRET_ACCESS_KEY`                                                                                    | Not tested yet                 |
-| [Ns1](https://ns1.com/)                                | `ns1`          | `NS1_API_KEY`                                                                                                                             | Not tested yet                 |
-| [Open Telekom Cloud](https://cloud.telekom.de)         | `otc`          | `OTC_DOMAIN_NAME`, `OTC_USER_NAME`, `OTC_PASSWORD`, `OTC_PROJECT_NAME`, `OTC_IDENTITY_ENDPOINT`                                           | Not tested yet                 |
-| [OVH](https://www.ovh.com)                             | `ovh`          | `OVH_ENDPOINT`, `OVH_APPLICATION_KEY`, `OVH_APPLICATION_SECRET`, `OVH_CONSUMER_KEY`                                                       | YES                            |
-| [PowerDNS](https://www.powerdns.com)                   | `pdns`         | `PDNS_API_KEY`, `PDNS_API_URL`                                                                                                            | Not tested yet                 |
-| [Rackspace](https://www.rackspace.com/cloud/dns)       | `rackspace`    | `RACKSPACE_USER`, `RACKSPACE_API_KEY`                                                                                                     | Not tested yet                 |
-| [RFC2136](https://tools.ietf.org/html/rfc2136)         | `rfc2136`      | `RFC2136_TSIG_KEY`, `RFC2136_TSIG_SECRET`, `RFC2136_TSIG_ALGORITHM`, `RFC2136_NAMESERVER`                                                 | Not tested yet                 |
-| [Route 53](https://aws.amazon.com/route53/)            | `route53`      | `AWS_ACCESS_KEY_ID`, `AWS_SECRET_ACCESS_KEY`, `[AWS_REGION]`, `[AWS_HOSTED_ZONE_ID]` or a configured user/instance IAM profile.           | YES                            |
-| [Sakura Cloud](https://cloud.sakura.ad.jp/)            | `sakuracloud`  | `SAKURACLOUD_ACCESS_TOKEN`, `SAKURACLOUD_ACCESS_TOKEN_SECRET`                                                                             | Not tested yet                 |
-| [Stackpath](https://www.stackpath.com/)                | `stackpath`    | `STACKPATH_CLIENT_ID`, `STACKPATH_CLIENT_SECRET`, `STACKPATH_STACK_ID`                                                                    | Not tested yet                 |
-| [VegaDNS](https://github.com/shupp/VegaDNS-API)        | `vegadns`      | `SECRET_VEGADNS_KEY`, `SECRET_VEGADNS_SECRET`, `VEGADNS_URL`                                                                              | Not tested yet                 |
-| [VULTR](https://www.vultr.com)                         | `vultr`        | `VULTR_API_KEY`                                                                                                                           | Not tested yet                 |
+| Provider Name                                               | Provider Code  | Environment Variables                                                                                                                       | Wildcard & Root Domain Support |
+|-------------------------------------------------------------|----------------|---------------------------------------------------------------------------------------------------------------------------------------------|--------------------------------|
+| [ACME DNS](https://github.com/joohoi/acme-dns)              | `acme-dns`     | `ACME_DNS_API_BASE`, `ACME_DNS_STORAGE_PATH`                                                                                                | Not tested yet                 |
+| [Alibaba Cloud](https://www.alibabacloud.com)               | `alidns`       | `ALICLOUD_ACCESS_KEY`, `ALICLOUD_SECRET_KEY`, `ALICLOUD_REGION_ID`                                                                          | Not tested yet                 |
+| [Auroradns](https://www.pcextreme.com/aurora/dns)           | `auroradns`    | `AURORA_USER_ID`, `AURORA_KEY`, `AURORA_ENDPOINT`                                                                                           | Not tested yet                 |
+| [Azure](https://azure.microsoft.com/services/dns/)          | `azure`        | `AZURE_CLIENT_ID`, `AZURE_CLIENT_SECRET`, `AZURE_SUBSCRIPTION_ID`, `AZURE_TENANT_ID`, `AZURE_RESOURCE_GROUP`, `[AZURE_METADATA_ENDPOINT]`   | Not tested yet                 |
+| [Bindman](https://github.com/labbsr0x/bindman-dns-webhook)  | `bindman`      | `BINDMAN_MANAGER_ADDRESS`                                                                                                                   | YES                            |
+| [Blue Cat](https://www.bluecatnetworks.com/)                | `bluecat`      | `BLUECAT_SERVER_URL`, `BLUECAT_USER_NAME`, `BLUECAT_PASSWORD`, `BLUECAT_CONFIG_NAME`, `BLUECAT_DNS_VIEW`                                    | Not tested yet                 |
+| [ClouDNS](https://www.cloudns.net/)                         | `cloudns`      | `CLOUDNS_AUTH_ID`, `CLOUDNS_AUTH_PASSWORD`                                                                                                  | YES                            |
+| [Cloudflare](https://www.cloudflare.com)                    | `cloudflare`   | `CF_API_EMAIL`, `CF_API_KEY` - The `Global API Key` needs to be used, not the `Origin CA Key`                                               | YES                            |
+| [CloudXNS](https://www.cloudxns.net)                        | `cloudxns`     | `CLOUDXNS_API_KEY`, `CLOUDXNS_SECRET_KEY`                                                                                                   | Not tested yet                 |
+| [ConoHa](https://www.conoha.jp)                             | `conoha`       | `CONOHA_TENANT_ID`, `CONOHA_API_USERNAME`, `CONOHA_API_PASSWORD`                                                                            | YES                            |
+| [DigitalOcean](https://www.digitalocean.com)                | `digitalocean` | `DO_AUTH_TOKEN`                                                                                                                             | YES                            |
+| [DNSimple](https://dnsimple.com)                            | `dnsimple`     | `DNSIMPLE_OAUTH_TOKEN`, `DNSIMPLE_BASE_URL`                                                                                                 | YES                            |
+| [DNS Made Easy](https://dnsmadeeasy.com)                    | `dnsmadeeasy`  | `DNSMADEEASY_API_KEY`, `DNSMADEEASY_API_SECRET`, `DNSMADEEASY_SANDBOX`                                                                      | Not tested yet                 |
+| [DNSPod](https://www.dnspod.com/)                           | `dnspod`       | `DNSPOD_API_KEY`                                                                                                                            | Not tested yet                 |
+| [Domain Offensive (do.de)](https://www.do.de/)              | `dode`         | `DODE_TOKEN`                                                                                                                                | YES                            |
+| [DreamHost](https://www.dreamhost.com/)                     | `dreamhost`    | `DREAMHOST_API_KEY`                                                                                                                         | YES                            |
+| [Duck DNS](https://www.duckdns.org/)                        | `duckdns`      | `DUCKDNS_TOKEN`                                                                                                                             | YES                            |
+| [Dyn](https://dyn.com)                                      | `dyn`          | `DYN_CUSTOMER_NAME`, `DYN_USER_NAME`, `DYN_PASSWORD`                                                                                        | Not tested yet                 |
+| [EasyDNS](https://easydns.com/)                             | `easydns`      | `EASYDNS_TOKEN`, `EASYDNS_KEY`                                                                                                              | YES                            |
+| External Program                                            | `exec`         | `EXEC_PATH`                                                                                                                                 | YES                            |
+| [Exoscale](https://www.exoscale.com)                        | `exoscale`     | `EXOSCALE_API_KEY`, `EXOSCALE_API_SECRET`, `EXOSCALE_ENDPOINT`                                                                              | YES                            |
+| [Fast DNS](https://www.akamai.com/)                         | `fastdns`      | `AKAMAI_CLIENT_TOKEN`,  `AKAMAI_CLIENT_SECRET`,  `AKAMAI_ACCESS_TOKEN`                                                                      | YES                            |
+| [Gandi](https://www.gandi.net)                              | `gandi`        | `GANDI_API_KEY`                                                                                                                             | Not tested yet                 |
+| [Gandi v5](http://doc.livedns.gandi.net)                    | `gandiv5`      | `GANDIV5_API_KEY`                                                                                                                           | YES                            |
+| [Glesys](https://glesys.com/)                               | `glesys`       | `GLESYS_API_USER`, `GLESYS_API_KEY`, `GLESYS_DOMAIN`                                                                                        | Not tested yet                 |
+| [GoDaddy](https://godaddy.com/domains)                      | `godaddy`      | `GODADDY_API_KEY`, `GODADDY_API_SECRET`                                                                                                     | Not tested yet                 |
+| [Google Cloud DNS](https://cloud.google.com/dns/docs/)      | `gcloud`       | `GCE_PROJECT`, Application Default Credentials (2) (3), [`GCE_SERVICE_ACCOUNT_FILE`]                                                        | YES                            |
+| [hosting.de](https://www.hosting.de)                        | `hostingde`    | `HOSTINGDE_API_KEY`, `HOSTINGDE_ZONE_NAME`                                                                                                  | YES                            |
+| HTTP request                                                | `httpreq`      | `HTTPREQ_ENDPOINT`, `HTTPREQ_MODE`, `HTTPREQ_USERNAME`, `HTTPREQ_PASSWORD` (1)                                                              | YES                            |
+| [IIJ](https://www.iij.ad.jp/)                               | `iij`          | `IIJ_API_ACCESS_KEY`, `IIJ_API_SECRET_KEY`, `IIJ_DO_SERVICE_CODE`                                                                           | Not tested yet                 |
+| [INWX](https://www.inwx.de/en)                              | `inwx`         | `INWX_USERNAME`, `INWX_PASSWORD`                                                                                                            | YES                            |
+| [Joker.com](https://joker.com)                              | `joker`        | `JOKER_API_KEY` or `JOKER_USERNAME`, `JOKER_PASSWORD`                                                                                       | YES                            |
+| [Lightsail](https://aws.amazon.com/lightsail/)              | `lightsail`    | `AWS_ACCESS_KEY_ID`, `AWS_SECRET_ACCESS_KEY`, `DNS_ZONE`                                                                                    | Not tested yet                 |
+| [Linode](https://www.linode.com)                            | `linode`       | `LINODE_API_KEY`                                                                                                                            | Not tested yet                 |
+| [Linode v4](https://www.linode.com)                         | `linodev4`     | `LINODE_TOKEN`                                                                                                                              | Not tested yet                 |
+| manual                                                      | -              | none, but you need to run Traefik interactively, turn on `acmeLogging` to see instructions and press <kbd>Enter</kbd>.                      | YES                            |
+| [MyDNS.jp](https://www.mydns.jp/)                           | `mydnsjp`      | `MYDNSJP_MASTER_ID`, `MYDNSJP_PASSWORD`                                                                                                     | YES                            |
+| [Namecheap](https://www.namecheap.com)                      | `namecheap`    | `NAMECHEAP_API_USER`, `NAMECHEAP_API_KEY`                                                                                                   | YES                            |
+| [Namesilo](https://www.namesilo.com/)                       | `namesilo`     | `NAMESILO_API_KEY`                                                                                                                          | YES                            |
+| [name.com](https://www.name.com/)                           | `namedotcom`   | `NAMECOM_USERNAME`, `NAMECOM_API_TOKEN`, `NAMECOM_SERVER`                                                                                   | Not tested yet                 |
+| [Netcup](https://www.netcup.eu/)                            | `netcup`       | `NETCUP_CUSTOMER_NUMBER`, `NETCUP_API_KEY`, `NETCUP_API_PASSWORD`                                                                           | Not tested yet                 |
+| [NIFCloud](https://cloud.nifty.com/service/dns.htm)         | `nifcloud`     | `NIFCLOUD_ACCESS_KEY_ID`, `NIFCLOUD_SECRET_ACCESS_KEY`                                                                                      | Not tested yet                 |
+| [Ns1](https://ns1.com/)                                     | `ns1`          | `NS1_API_KEY`                                                                                                                               | Not tested yet                 |
+| [Open Telekom Cloud](https://cloud.telekom.de)              | `otc`          | `OTC_DOMAIN_NAME`, `OTC_USER_NAME`, `OTC_PASSWORD`, `OTC_PROJECT_NAME`, `OTC_IDENTITY_ENDPOINT`                                             | Not tested yet                 |
+| [OVH](https://www.ovh.com)                                  | `ovh`          | `OVH_ENDPOINT`, `OVH_APPLICATION_KEY`, `OVH_APPLICATION_SECRET`, `OVH_CONSUMER_KEY`                                                         | YES                            |
+| [Openstack Designate](https://docs.openstack.org/designate) | `designate`    | `OS_AUTH_URL`, `OS_USERNAME`, `OS_PASSWORD`, `OS_TENANT_NAME`, `OS_REGION_NAME`                                                             | YES                            |
+| [Oracle Cloud](https://cloud.oracle.com/home)               | `oraclecloud`  | `OCI_COMPARTMENT_OCID`, `OCI_PRIVKEY_FILE`, `OCI_PRIVKEY_PASS`, `OCI_PUBKEY_FINGERPRINT`, `OCI_REGION`, `OCI_TENANCY_OCID`, `OCI_USER_OCID` | YES                            |
+| [PowerDNS](https://www.powerdns.com)                        | `pdns`         | `PDNS_API_KEY`, `PDNS_API_URL`                                                                                                              | Not tested yet                 |
+| [Rackspace](https://www.rackspace.com/cloud/dns)            | `rackspace`    | `RACKSPACE_USER`, `RACKSPACE_API_KEY`                                                                                                       | Not tested yet                 |
+| [RFC2136](https://tools.ietf.org/html/rfc2136)              | `rfc2136`      | `RFC2136_TSIG_KEY`, `RFC2136_TSIG_SECRET`, `RFC2136_TSIG_ALGORITHM`, `RFC2136_NAMESERVER`                                                   | Not tested yet                 |
+| [Route 53](https://aws.amazon.com/route53/)                 | `route53`      | `AWS_ACCESS_KEY_ID`, `AWS_SECRET_ACCESS_KEY`, `[AWS_REGION]`, `[AWS_HOSTED_ZONE_ID]` or a configured user/instance IAM profile.             | YES                            |
+| [Sakura Cloud](https://cloud.sakura.ad.jp/)                 | `sakuracloud`  | `SAKURACLOUD_ACCESS_TOKEN`, `SAKURACLOUD_ACCESS_TOKEN_SECRET`                                                                               | Not tested yet                 |
+| [Selectel](https://selectel.ru/en/)                         | `selectel`     | `SELECTEL_API_TOKEN`                                                                                                                        | YES                            |
+| [Stackpath](https://www.stackpath.com/)                     | `stackpath`    | `STACKPATH_CLIENT_ID`, `STACKPATH_CLIENT_SECRET`, `STACKPATH_STACK_ID`                                                                      | Not tested yet                 |
+| [TransIP](https://www.transip.nl/)                          | `transip`      | `TRANSIP_ACCOUNT_NAME`, `TRANSIP_PRIVATE_KEY_PATH`                                                                                          | YES                            |
+| [VegaDNS](https://github.com/shupp/VegaDNS-API)             | `vegadns`      | `SECRET_VEGADNS_KEY`, `SECRET_VEGADNS_SECRET`, `VEGADNS_URL`                                                                                | Not tested yet                 |
+| [Versio](https://www.versio.nl/domeinnamen)                 | `versio`       | `VERSIO_USERNAME`, `VERSIO_PASSWORD`                                                                                                        | YES                            |
+| [Vscale](https://vscale.io/)                                | `vscale`       | `VSCALE_API_TOKEN`                                                                                                                          | YES                            |
+| [VULTR](https://www.vultr.com)                              | `vultr`        | `VULTR_API_KEY`                                                                                                                             | YES                            |
+| [Zone.ee](https://www.zone.ee)                              | `zoneee`       | `ZONEEE_API_USER`, `ZONEEE_API_KEY`                                                                                                         | YES                            |
+
+- (1): more information about the HTTP message format can be found [here](https://go-acme.github.io/lego/dns/httpreq/)
+- (2): https://cloud.google.com/docs/authentication/production#providing_credentials_to_your_application
+- (3): https://github.com/golang/oauth2/blob/36a7019397c4c86cf59eeab3bc0d188bac444277/google/default.go#L61-L76
 
 #### `resolvers`
 
 Use custom DNS servers to resolve the FQDN authority.
 
+```toml
+[acme]
+# ...
+[acme.dnsChallenge]
+  # ...
+  resolvers = ["1.1.1.1:53", "8.8.8.8:53"]
+```
+
 ### `domains`
 
 You can provide SANs (alternative domains) to each main domain.
@@ -367,11 +399,10 @@ As described in [Let's Encrypt's post](https://community.letsencrypt.org/t/stagi
 ```
 
 It is not possible to request a double wildcard certificate for a domain (for example `*.*.local.com`).
-Due to ACME limitation it is not possible to define wildcards in SANs (alternative domains). Thus, the wildcard domain has to be defined as a main domain.
 Most likely the root domain should receive a certificate too, so it needs to be specified as SAN and 2 `DNS-01` challenges are executed.
 In this case the generated DNS TXT record for both domains is the same.
 Even though this behaviour is [DNS RFC](https://community.letsencrypt.org/t/wildcard-issuance-two-txt-records-for-the-same-name/54528/2) compliant, it can lead to problems as all DNS providers keep DNS records cached for a certain time (TTL) and this TTL can be superior to the challenge timeout making the `DNS-01` challenge fail.
-The Traefik ACME client library [LEGO](https://github.com/xenolf/lego) supports some but not all DNS providers to work around this issue.
+The Traefik ACME client library [LEGO](https://github.com/go-acme/lego) supports some but not all DNS providers to work around this issue.
 The [`provider` table](/configuration/acme/#provider) indicates if they allow generating certificates for a wildcard domain and its root domain.
 
 ### `onDemand` (Deprecated)

docs/configuration/api.md

@@ -35,7 +35,7 @@
 
 For more customization, see [entry points](/configuration/entrypoints/) documentation and the examples below.
 
-## Web UI
+## Dashboard (Web UI)
 
 ![Web UI Providers](/img/web.frontend.png)
 
@@ -106,10 +106,10 @@ entryPoint = "foo"
 entryPoint = "bar"
 ```
 
-In the above example, you would access a regular path, administration panel, and health-check as follows:
+In the above example, you would access a regular path, dashboard, and health-check as follows:
 
 * Regular path: `http://hostname:80/path`
-* Admin Panel: `http://hostname:8083/`
+* Dashboard: `http://hostname:8083/`
 * Ping URL: `http://hostname:8082/ping`
 
 In the above example, it is _very_ important to create a named dedicated entry point, and do **not** include it in `defaultEntryPoints`.
@@ -301,7 +301,7 @@ curl -s "http://localhost:8080/health" | jq .
   // average response time in seconds
   "average_response_time_sec": 0.8648016000000001,
 
-  // request statistics [requires --statistics to be set]
+  // request statistics [requires --api.statistics to be set]
   // ten most recent requests with 4xx and 5xx status codes
   "recent_errors": [
     {
@@ -322,9 +322,12 @@ curl -s "http://localhost:8080/health" | jq .
 }
 ```
 
-## Metrics
+## Dashboard Statistics
 
-You can enable Traefik to export internal metrics to different monitoring systems.
+You can control how the Traefik's internal metrics are shown in the Dashboard.
+
+If you want to export internal metrics to different monitoring systems,
+please check the page [Metrics](./metrics.md).
 
 ```toml
 [api]

docs/configuration/backends/consulcatalog.md

@@ -37,6 +37,15 @@ stale = false
 #
 domain = "consul.localhost"
 
+# Keep a Consul node only if all checks status are passing
+# If true, only the Consul nodes with checks status 'passing' will be kept.
+# if false, only the Consul nodes with checks status 'passing' or 'warning' will be kept.
+#
+# Optional
+# Default: true
+#
+strictChecks = true
+
 # Prefix for Consul catalog tags.
 #
 # Optional
@@ -94,74 +103,82 @@ Additional settings can be defined using Consul Catalog tags.
 !!! note
     The default prefix is `traefik`.
 
-| Label                                                                | Description                                                                                                                                                                                                                   |
-|----------------------------------------------------------------------|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
-| `<prefix>.enable=false`                                              | Disables this container in Traefik.                                                                                                                                                                                            |
-| `<prefix>.protocol=https`                                            | Overrides the default `http` protocol.                                                                                                                                                                                        |
-| `<prefix>.weight=10`                                                 | Assigns this weight to the container.                                                                                                                                                                                         |
-| `traefik.backend.buffering.maxRequestBodyBytes=0`                    | See [buffering](/configuration/commons/#buffering) section.                                                                                                                                                                   |
-| `traefik.backend.buffering.maxResponseBodyBytes=0`                   | See [buffering](/configuration/commons/#buffering) section.                                                                                                                                                                   |
-| `traefik.backend.buffering.memRequestBodyBytes=0`                    | See [buffering](/configuration/commons/#buffering) section.                                                                                                                                                                   |
-| `traefik.backend.buffering.memResponseBodyBytes=0`                   | See [buffering](/configuration/commons/#buffering) section.                                                                                                                                                                   |
-| `traefik.backend.buffering.retryExpression=EXPR`                     | See [buffering](/configuration/commons/#buffering) section.                                                                                                                                                                   |
-| `<prefix>.backend.circuitbreaker.expression=EXPR`                    | Creates a [circuit breaker](/basics/#backends) to be used against the backend. ex: `NetworkErrorRatio() > 0.`                                                                                                                 |
-| `<prefix>.backend.responseForwarding.flushInterval=10ms`             | Defines the interval between two flushes when forwarding response from backend to client.                                                                                                                                     |
-| `<prefix>.backend.healthcheck.path=/health`                          | Enables health check for the backend, hitting the container at `path`.                                                                                                                                                        |
-| `<prefix>.backend.healthcheck.interval=1s`                           | Defines the health check interval.                                                                                                                                                                                            |
-| `<prefix>.backend.healthcheck.port=8080`                             | Sets a different port for the health check.                                                                                                                                                                                   |
-| `traefik.backend.healthcheck.scheme=http`                            | Overrides the server URL scheme.                                                                                                                                                                                              |
-| `<prefix>.backend.healthcheck.hostname=foobar.com`                   | Defines the health check hostname.                                                                                                                                                                                            |
-| `<prefix>.backend.healthcheck.headers=EXPR`                          | Defines the health check request headers <br>Format:  <code>HEADER:value&vert;&vert;HEADER2:value2</code>                                                                                                                     |
-| `<prefix>.backend.loadbalancer.method=drr`                           | Overrides the default `wrr` load balancer algorithm.                                                                                                                                                                          |
-| `<prefix>.backend.loadbalancer.stickiness=true`                      | Enables backend sticky sessions.                                                                                                                                                                                              |
-| `<prefix>.backend.loadbalancer.stickiness.cookieName=NAME`           | Sets the cookie name manually for sticky sessions.                                                                                                                                                                            |
-| `<prefix>.backend.loadbalancer.sticky=true`                          | Enables backend sticky sessions. (DEPRECATED)                                                                                                                                                                                 |
-| `<prefix>.backend.maxconn.amount=10`                                 | Sets a maximum number of connections to the backend.<br>Must be used in conjunction with the below label to take effect.                                                                                                      |
-| `<prefix>.backend.maxconn.extractorfunc=client.ip`                   | Sets the function to be used against the request to determine what to limit maximum connections to the backend by.<br>Must be used in conjunction with the above label to take effect.                                        |
-| `<prefix>.frontend.auth.basic=EXPR`                                  | Sets basic authentication to this frontend in CSV format: `User:Hash,User:Hash` (DEPRECATED).                                                                                                                                 |
-| `<prefix>.frontend.auth.basic.removeHeader=true`                     | If set to `true`, removes the `Authorization` header.                                                                                                                                                                         |
-| `<prefix>.frontend.auth.basic.users=EXPR`                            | Sets basic authentication to this frontend in CSV format: `User:Hash,User:Hash`.                                                                                                                                              |
-| `<prefix>.frontend.auth.basic.usersfile=/path/.htpasswd`             | Sets basic authentication with an external file; if users and usersFile are provided, both are merged, with external file contents having precedence.                                                                         |
-| `<prefix>.frontend.auth.digest.removeHeader=true`                    | If set to `true`, removes the `Authorization` header.                                                                                                                                                                         |
-| `<prefix>.frontend.auth.digest.users=EXPR`                           | Sets digest authentication to this frontend in CSV format: `User:Realm:Hash,User:Realm:Hash`.                                                                                                                                 |
-| `<prefix>.frontend.auth.digest.usersfile=/path/.htdigest`            | Sets digest authentication with an external file; if users and usersFile are provided, both are merged, with external file contents having precedence.                                                                        |
-| `<prefix>.frontend.auth.forward.address=https://example.com`         | Sets the URL of the authentication server.                                                                                                                                                                                    |
-| `<prefix>.frontend.auth.forward.authResponseHeaders=EXPR`            | Sets the forward authentication authResponseHeaders in CSV format: `X-Auth-User,X-Auth-Header`                                                                                                                                |
-| `<prefix>.frontend.auth.forward.tls.ca=/path/ca.pem`                 | Sets the Certificate Authority (CA) for the TLS connection with the authentication server.                                                                                                                                    |
-| `<prefix>.frontend.auth.forward.tls.caOptional=true`                 | Checks the certificates if present but do not force to be signed by a specified Certificate Authority (CA).                                                                                                                   |
-| `<prefix>.frontend.auth.forward.tls.cert=/path/server.pem`           | Sets the Certificate for the TLS connection with the authentication server.                                                                                                                                                   |
-| `<prefix>.frontend.auth.forward.tls.insecureSkipVerify=true`         | If set to true invalid SSL certificates are accepted.                                                                                                                                                                         |
-| `<prefix>.frontend.auth.forward.tls.key=/path/server.key`            | Sets the Certificate for the TLS connection with the authentication server.                                                                                                                                                   |
-| `<prefix>.frontend.auth.forward.trustForwardHeader=true`             | Trusts X-Forwarded-* headers.                                                                                                                                                                                                 |
-| `<prefix>.frontend.auth.headerField=X-WebAuth-User`                  | Sets the header used to pass the authenticated user to the application.                                                                                                                                                       |
-| `<prefix>.frontend.entryPoints=http,https`                           | Assigns this frontend to entry points `http` and `https`.<br>Overrides `defaultEntryPoints`                                                                                                                                   |
-| `<prefix>.frontend.errors.<name>.backend=NAME`                       | See [custom error pages](/configuration/commons/#custom-error-pages) section.                                                                                                                                                 |
-| `<prefix>.frontend.errors.<name>.query=PATH`                         | See [custom error pages](/configuration/commons/#custom-error-pages) section.                                                                                                                                                 |
-| `<prefix>.frontend.errors.<name>.status=RANGE`                       | See [custom error pages](/configuration/commons/#custom-error-pages) section.                                                                                                                                                 |
-| `<prefix>.frontend.passHostHeader=true`                              | Forwards client `Host` header to the backend.                                                                                                                                                                                 |
-| `<prefix>.frontend.passTLSClientCert.infos.notAfter=true`            | Add the noAfter field in a escaped client infos in the `X-Forwarded-Ssl-Client-Cert-Infos` header.                                                                                                                            |
-| `<prefix>.frontend.passTLSClientCert.infos.notBefore=true`           | Add the noBefore field in a escaped client infos in the `X-Forwarded-Ssl-Client-Cert-Infos` header.                                                                                                                           |
-| `<prefix>.frontend.passTLSClientCert.infos.sans=true`                | Add the sans field in a escaped client infos in the `X-Forwarded-Ssl-Client-Cert-Infos` header.                                                                                                                               |
-| `<prefix>.frontend.passTLSClientCert.infos.subject.commonName=true`  | Add the subject.commonName field in a escaped client infos in the `X-Forwarded-Ssl-Client-Cert-Infos` header.                                                                                                                 |
-| `<prefix>.frontend.passTLSClientCert.infos.subject.country=true`     | Add the subject.country field in a escaped client infos in the `X-Forwarded-Ssl-Client-Cert-Infos` header.                                                                                                                    |
-| `<prefix>.frontend.passTLSClientCert.infos.subject.locality=true`    | Add the subject.locality field in a escaped client infos in the `X-Forwarded-Ssl-Client-Cert-Infos` header.                                                                                                                   |
-| `<prefix>.frontend.passTLSClientCert.infos.subject.organization=true`| Add the subject.organization field in a escaped client infos in the `X-Forwarded-Ssl-Client-Cert-Infos` header.                                                                                                               |
-| `<prefix>.frontend.passTLSClientCert.infos.subject.province=true`    | Add the subject.province field in a escaped client infos in the `X-Forwarded-Ssl-Client-Cert-Infos` header.                                                                                                                   |
-| `<prefix>.frontend.passTLSClientCert.infos.subject.serialNumber=true`| Add the subject.serialNumber field in a escaped client infos in the `X-Forwarded-Ssl-Client-Cert-Infos` header.                                                                                                               |
-| `<prefix>.frontend.passTLSClientCert.pem=true`                       | Pass the escaped pem in the `X-Forwarded-Ssl-Client-Cert` header.                                                                                                                                                             |
-| `<prefix>.frontend.passTLSCert=true`                                 | Forwards TLS Client certificates to the backend.                                                                                                                                                                              |
-| `<prefix>.frontend.priority=10`                                      | Overrides default frontend priority.                                                                                                                                                                                          |
-| `<prefix>.frontend.rateLimit.extractorFunc=EXP`                      | See [rate limiting](/configuration/commons/#rate-limiting) section.                                                                                                                                                           |
-| `<prefix>.frontend.rateLimit.rateSet.<name>.period=6`                | See [rate limiting](/configuration/commons/#rate-limiting) section.                                                                                                                                                           |
-| `<prefix>.frontend.rateLimit.rateSet.<name>.average=6`               | See [rate limiting](/configuration/commons/#rate-limiting) section.                                                                                                                                                           |
-| `<prefix>.frontend.rateLimit.rateSet.<name>.burst=6`                 | See [rate limiting](/configuration/commons/#rate-limiting) section.                                                                                                                                                           |
-| `<prefix>.frontend.redirect.entryPoint=https`                        | Enables Redirect to another entryPoint to this frontend (e.g. HTTPS).                                                                                                                                                         |
-| `<prefix>.frontend.redirect.regex=^http://localhost/(.*)`            | Redirects to another URL to this frontend.<br>Must be set with `traefik.frontend.redirect.replacement`.                                                                                                                       |
-| `<prefix>.frontend.redirect.replacement=http://mydomain/$1`          | Redirects to another URL to this frontend.<br>Must be set with `traefik.frontend.redirect.regex`.                                                                                                                             |
-| `<prefix>.frontend.redirect.permanent=true`                          | Returns 301 instead of 302.                                                                                                                                                                                                   |
-| `<prefix>.frontend.rule=EXPR`                                        | Overrides the default frontend rule. Default: `Host:{{.ServiceName}}.{{.Domain}}`.                                                                                                                                            |
-| `<prefix>.frontend.whiteList.sourceRange=RANGE`                      | Sets a list of IP-Ranges which are allowed to access.<br>An unset or empty list allows all Source-IPs to access. If one of the Net-Specifications are invalid, the whole list is invalid and allows all Source-IPs to access. |
-| `<prefix>.frontend.whiteList.useXForwardedFor=true`                  | Uses `X-Forwarded-For` header as valid source of IP for the white list.                                                                                                                                                       |
+| Label                                                                    | Description                                                                                                                                                                                                                   |
+|--------------------------------------------------------------------------|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
+| `<prefix>.enable=false`                                                  | Disables this container in Traefik.                                                                                                                                                                                           |
+| `<prefix>.protocol=https`                                                | Overrides the default `http` protocol.                                                                                                                                                                                        |
+| `<prefix>.weight=10`                                                     | Assigns this weight to the container.                                                                                                                                                                                         |
+| `traefik.backend.buffering.maxRequestBodyBytes=0`                        | See [buffering](/configuration/commons/#buffering) section.                                                                                                                                                                   |
+| `traefik.backend.buffering.maxResponseBodyBytes=0`                       | See [buffering](/configuration/commons/#buffering) section.                                                                                                                                                                   |
+| `traefik.backend.buffering.memRequestBodyBytes=0`                        | See [buffering](/configuration/commons/#buffering) section.                                                                                                                                                                   |
+| `traefik.backend.buffering.memResponseBodyBytes=0`                       | See [buffering](/configuration/commons/#buffering) section.                                                                                                                                                                   |
+| `traefik.backend.buffering.retryExpression=EXPR`                         | See [buffering](/configuration/commons/#buffering) section.                                                                                                                                                                   |
+| `<prefix>.backend.circuitbreaker.expression=EXPR`                        | Creates a [circuit breaker](/basics/#backends) to be used against the backend. ex: `NetworkErrorRatio() > 0.`                                                                                                                 |
+| `<prefix>.backend.responseForwarding.flushInterval=10ms`                 | Defines the interval between two flushes when forwarding response from backend to client.                                                                                                                                     |
+| `<prefix>.backend.healthcheck.path=/health`                              | Enables health check for the backend, hitting the container at `path`.                                                                                                                                                        |
+| `<prefix>.backend.healthcheck.interval=1s`                               | Defines the health check interval.                                                                                                                                                                                            |
+| `<prefix>.backend.healthcheck.port=8080`                                 | Sets a different port for the health check.                                                                                                                                                                                   |
+| `traefik.backend.healthcheck.scheme=http`                                | Overrides the server URL scheme.                                                                                                                                                                                              |
+| `<prefix>.backend.healthcheck.hostname=foobar.com`                       | Defines the health check hostname.                                                                                                                                                                                            |
+| `<prefix>.backend.healthcheck.headers=EXPR`                              | Defines the health check request headers <br>Format:  <code>HEADER:value&vert;&vert;HEADER2:value2</code>                                                                                                                     |
+| `<prefix>.backend.loadbalancer.method=drr`                               | Overrides the default `wrr` load balancer algorithm.                                                                                                                                                                          |
+| `<prefix>.backend.loadbalancer.stickiness=true`                          | Enables backend sticky sessions.                                                                                                                                                                                              |
+| `<prefix>.backend.loadbalancer.stickiness.cookieName=NAME`               | Sets the cookie name manually for sticky sessions.                                                                                                                                                                            |
+| `<prefix>.backend.loadbalancer.sticky=true`                              | Enables backend sticky sessions. (DEPRECATED)                                                                                                                                                                                 |
+| `<prefix>.backend.maxconn.amount=10`                                     | Sets a maximum number of connections to the backend.<br>Must be used in conjunction with the below label to take effect.                                                                                                      |
+| `<prefix>.backend.maxconn.extractorfunc=client.ip`                       | Sets the function to be used against the request to determine what to limit maximum connections to the backend by.<br>Must be used in conjunction with the above label to take effect.                                        |
+| `<prefix>.frontend.auth.basic=EXPR`                                      | Sets basic authentication to this frontend in CSV format: `User:Hash,User:Hash` (DEPRECATED).                                                                                                                                 |
+| `<prefix>.frontend.auth.basic.removeHeader=true`                         | If set to `true`, removes the `Authorization` header.                                                                                                                                                                         |
+| `<prefix>.frontend.auth.basic.users=EXPR`                                | Sets basic authentication to this frontend in CSV format: `User:Hash,User:Hash`.                                                                                                                                              |
+| `<prefix>.frontend.auth.basic.usersFile=/path/.htpasswd`                 | Sets basic authentication with an external file; if users and usersFile are provided, both are merged, with external file contents having precedence.                                                                         |
+| `<prefix>.frontend.auth.digest.removeHeader=true`                        | If set to `true`, removes the `Authorization` header.                                                                                                                                                                         |
+| `<prefix>.frontend.auth.digest.users=EXPR`                               | Sets digest authentication to this frontend in CSV format: `User:Realm:Hash,User:Realm:Hash`.                                                                                                                                 |
+| `<prefix>.frontend.auth.digest.usersFile=/path/.htdigest`                | Sets digest authentication with an external file; if users and usersFile are provided, both are merged, with external file contents having precedence.                                                                        |
+| `<prefix>.frontend.auth.forward.address=https://example.com`             | Sets the URL of the authentication server.                                                                                                                                                                                    |
+| `<prefix>.frontend.auth.forward.authResponseHeaders=EXPR`                | Sets the forward authentication authResponseHeaders in CSV format: `X-Auth-User,X-Auth-Header`                                                                                                                                |
+| `<prefix>.frontend.auth.forward.tls.ca=/path/ca.pem`                     | Sets the Certificate Authority (CA) for the TLS connection with the authentication server.                                                                                                                                    |
+| `<prefix>.frontend.auth.forward.tls.caOptional=true`                     | Checks the certificates if present but do not force to be signed by a specified Certificate Authority (CA).                                                                                                                   |
+| `<prefix>.frontend.auth.forward.tls.cert=/path/server.pem`               | Sets the Certificate for the TLS connection with the authentication server.                                                                                                                                                   |
+| `<prefix>.frontend.auth.forward.tls.insecureSkipVerify=true`             | If set to true invalid SSL certificates are accepted.                                                                                                                                                                         |
+| `<prefix>.frontend.auth.forward.tls.key=/path/server.key`                | Sets the Certificate for the TLS connection with the authentication server.                                                                                                                                                   |
+| `<prefix>.frontend.auth.forward.trustForwardHeader=true`                 | Trusts X-Forwarded-* headers.                                                                                                                                                                                                 |
+| `<prefix>.frontend.auth.headerField=X-WebAuth-User`                      | Sets the header used to pass the authenticated user to the application.                                                                                                                                                       |
+| `<prefix>.frontend.entryPoints=http,https`                               | Assigns this frontend to entry points `http` and `https`.<br>Overrides `defaultEntryPoints`                                                                                                                                   |
+| `<prefix>.frontend.errors.<name>.backend=NAME`                           | See [custom error pages](/configuration/commons/#custom-error-pages) section.                                                                                                                                                 |
+| `<prefix>.frontend.errors.<name>.query=PATH`                             | See [custom error pages](/configuration/commons/#custom-error-pages) section.                                                                                                                                                 |
+| `<prefix>.frontend.errors.<name>.status=RANGE`                           | See [custom error pages](/configuration/commons/#custom-error-pages) section.                                                                                                                                                 |
+| `<prefix>.frontend.passHostHeader=true`                                  | Forwards client `Host` header to the backend.                                                                                                                                                                                 |
+| `<prefix>.frontend.passTLSClientCert.infos.issuer.commonName=true`       | Add the issuer.commonName field in a escaped client infos in the `X-Forwarded-Ssl-Client-Cert-Infos` header.                                                                                                                  |
+| `<prefix>.frontend.passTLSClientCert.infos.issuer.country=true`          | Add the issuer.country field in a escaped client infos in the `X-Forwarded-Ssl-Client-Cert-Infos` header.                                                                                                                     |
+| `<prefix>.frontend.passTLSClientCert.infos.issuer.domainComponent=true`  | Add the issuer.domainComponent field in a escaped client infos in the `X-Forwarded-Ssl-Client-Cert-Infos` header.                                                                                                             |
+| `<prefix>.frontend.passTLSClientCert.infos.issuer.locality=true`         | Add the issuer.locality field in a escaped client infos in the `X-Forwarded-Ssl-Client-Cert-Infos` header.                                                                                                                    |
+| `<prefix>.frontend.passTLSClientCert.infos.issuer.organization=true`     | Add the issuer.organization field in a escaped client infos in the `X-Forwarded-Ssl-Client-Cert-Infos` header.                                                                                                                |
+| `<prefix>.frontend.passTLSClientCert.infos.issuer.province=true`         | Add the issuer.province field in a escaped client infos in the `X-Forwarded-Ssl-Client-Cert-Infos` header.                                                                                                                    |
+| `<prefix>.frontend.passTLSClientCert.infos.issuer.serialNumber=true`     | Add the subject.serialNumber field in a escaped client infos in the `X-Forwarded-Ssl-Client-Cert-Infos` header.                                                                                                               |
+| `<prefix>.frontend.passTLSClientCert.infos.notAfter=true`                | Add the noAfter field in a escaped client infos in the `X-Forwarded-Ssl-Client-Cert-Infos` header.                                                                                                                            |
+| `<prefix>.frontend.passTLSClientCert.infos.notBefore=true`               | Add the noBefore field in a escaped client infos in the `X-Forwarded-Ssl-Client-Cert-Infos` header.                                                                                                                           |
+| `<prefix>.frontend.passTLSClientCert.infos.sans=true`                    | Add the sans field in a escaped client infos in the `X-Forwarded-Ssl-Client-Cert-Infos` header.                                                                                                                               |
+| `<prefix>.frontend.passTLSClientCert.infos.subject.commonName=true`      | Add the subject.commonName field in a escaped client infos in the `X-Forwarded-Ssl-Client-Cert-Infos` header.                                                                                                                 |
+| `<prefix>.frontend.passTLSClientCert.infos.subject.country=true`         | Add the subject.country field in a escaped client infos in the `X-Forwarded-Ssl-Client-Cert-Infos` header.                                                                                                                    |
+| `<prefix>.frontend.passTLSClientCert.infos.subject.domainComponent=true` | Add the subject.domainComponent field in a escaped client infos in the `X-Forwarded-Ssl-Client-Cert-Infos` header.                                                                                                            |
+| `<prefix>.frontend.passTLSClientCert.infos.subject.locality=true`        | Add the subject.locality field in a escaped client infos in the `X-Forwarded-Ssl-Client-Cert-Infos` header.                                                                                                                   |
+| `<prefix>.frontend.passTLSClientCert.infos.subject.organization=true`    | Add the subject.organization field in a escaped client infos in the `X-Forwarded-Ssl-Client-Cert-Infos` header.                                                                                                               |
+| `<prefix>.frontend.passTLSClientCert.infos.subject.province=true`        | Add the subject.province field in a escaped client infos in the `X-Forwarded-Ssl-Client-Cert-Infos` header.                                                                                                                   |
+| `<prefix>.frontend.passTLSClientCert.infos.subject.serialNumber=true`    | Add the subject.serialNumber field in a escaped client infos in the `X-Forwarded-Ssl-Client-Cert-Infos` header.                                                                                                               |
+| `<prefix>.frontend.passTLSClientCert.pem=true`                           | Pass the escaped pem in the `X-Forwarded-Ssl-Client-Cert` header.                                                                                                                                                             |
+| `<prefix>.frontend.passTLSCert=true`                                     | Forwards TLS Client certificates to the backend.                                                                                                                                                                              |
+| `<prefix>.frontend.priority=10`                                          | Overrides default frontend priority.                                                                                                                                                                                          |
+| `<prefix>.frontend.rateLimit.extractorFunc=EXP`                          | See [rate limiting](/configuration/commons/#rate-limiting) section.                                                                                                                                                           |
+| `<prefix>.frontend.rateLimit.rateSet.<name>.period=6`                    | See [rate limiting](/configuration/commons/#rate-limiting) section.                                                                                                                                                           |
+| `<prefix>.frontend.rateLimit.rateSet.<name>.average=6`                   | See [rate limiting](/configuration/commons/#rate-limiting) section.                                                                                                                                                           |
+| `<prefix>.frontend.rateLimit.rateSet.<name>.burst=6`                     | See [rate limiting](/configuration/commons/#rate-limiting) section.                                                                                                                                                           |
+| `<prefix>.frontend.redirect.entryPoint=https`                            | Enables Redirect to another entryPoint to this frontend (e.g. HTTPS).                                                                                                                                                         |
+| `<prefix>.frontend.redirect.regex=^http://localhost/(.*)`                | Redirects to another URL to this frontend.<br>Must be set with `traefik.frontend.redirect.replacement`.                                                                                                                       |
+| `<prefix>.frontend.redirect.replacement=http://mydomain/$1`              | Redirects to another URL to this frontend.<br>Must be set with `traefik.frontend.redirect.regex`.                                                                                                                             |
+| `<prefix>.frontend.redirect.permanent=true`                              | Returns 301 instead of 302.                                                                                                                                                                                                   |
+| `<prefix>.frontend.rule=EXPR`                                            | Overrides the default frontend rule. Default: `Host:{{.ServiceName}}.{{.Domain}}`.                                                                                                                                            |
+| `<prefix>.frontend.whiteList.sourceRange=RANGE`                          | Sets a list of IP-Ranges which are allowed to access.<br>An unset or empty list allows all Source-IPs to access. If one of the Net-Specifications are invalid, the whole list is invalid and allows all Source-IPs to access. |
+| `<prefix>.frontend.whiteList.useXForwardedFor=true`                      | Uses `X-Forwarded-For` header as valid source of IP for the white list.                                                                                                                                                       |
 
 ### Multiple frontends for a single service
 

docs/configuration/backends/docker.md

@@ -57,7 +57,7 @@ watch = true
 exposedByDefault = true
 
 # Use the IP address from the binded port instead of the inner network one.
-# 
+#
 # In case no IP address is attached to the binded port (or in case 
 # there is no bind), the inner network one will be used as a fallback.     
 #
@@ -73,6 +73,13 @@ usebindportip = true
 #
 swarmMode = false
 
+# Polling interval (in seconds) for Swarm Mode.
+#
+# Optional
+# Default: 15
+#
+swarmModeRefreshSeconds = 15
+
 # Define a default docker network to use for connections to all containers.
 # Can be overridden by the traefik.docker.network label.
 #
@@ -93,7 +100,6 @@ network = "web"
 
 To enable constraints see [provider-specific constraints section](/configuration/commons/#provider-specific).
 
-
 ## Docker Swarm Mode
 
 ```toml
@@ -110,7 +116,10 @@ To enable constraints see [provider-specific constraints section](/configuration
 # Required
 # Default: "unix:///var/run/docker.sock"
 #
-endpoint = "tcp://127.0.0.1:2375"
+# swarm classic (1.12-)
+# endpoint = "tcp://127.0.0.1:2375"
+# docker swarm mode (1.12+)
+endpoint = "tcp://127.0.0.1:2377"
 
 # Default base domain used for the frontend rules.
 # Can be overridden by setting the "traefik.domain" label on a services.
@@ -177,6 +186,61 @@ exposedByDefault = false
 
 To enable constraints see [provider-specific constraints section](/configuration/commons/#provider-specific).
 
+## Security Considerations
+
+### Security Challenge with the Docker Socket
+
+Traefik requires access to the docker socket to get its dynamic configuration,
+by watching the Docker API through this socket.
+
+!!! important
+    Depending on your context and your usage, accessing the Docker API without any restriction might be a security concern.
+
+As explained on the Docker documentation: ([Docker Daemon Attack Surface page](https://docs.docker.com/engine/security/security/#docker-daemon-attack-surface)):
+
+`[...] only **trusted** users should be allowed to control your Docker daemon [...]`
+
+If the Traefik processes (handling requests from the outside world) is attacked,
+then the attacker can access the Docker (or Swarm Mode) backend.
+
+Also, when using Swarm Mode, it is mandatory to schedule Traefik's containers on the Swarm manager nodes,
+to let Traefik accessing the Docker Socket of the Swarm manager node.
+
+More information about Docker's security:
+
+- [KubeCon EU 2018 Keynote, Running with Scissors, from Liz Rice](https://www.youtube.com/watch?v=ltrV-Qmh3oY)
+- [Don't expose the Docker socket (not even to a container)](https://www.lvh.io/posts/dont-expose-the-docker-socket-not-even-to-a-container.html)
+- [A thread on Stack Overflow about sharing the `/var/run/docker.sock` file](https://news.ycombinator.com/item?id=17983623)
+- [To Dind or not to DinD](https://blog.loof.fr/2018/01/to-dind-or-not-do-dind.html)
+
+### Workarounds
+
+!!! note "Improved Security"
+
+    [TraefikEE](https://containo.us/traefikee) solves this problem by separating the control plane (connected to Docker) and the data plane (handling the requests).
+
+Another possible workaround is to expose the Docker socket over TCP, instead of the default Unix socket file.
+It allows different implementation levels of the [AAA (Authentication, Authorization, Accounting) concepts](https://en.wikipedia.org/wiki/AAA_(computer_security)), depending on your security assessment:
+
+- Authentication with Client Certificates as described in [the "Protect the Docker daemon socket" page of Docker's documentation](https://docs.docker.com/engine/security/https/)
+
+- Authorization with the [Docker Authorization Plugin Mechanism](https://docs.docker.com/engine/extend/plugins_authorization/)
+
+- Accounting at networking level, by exposing the socket only inside a Docker private network, only available for Traefik.
+
+- Accounting at container level, by exposing the socket on a another container than Traefik's.
+  With Swarm mode, it allows scheduling of Traefik on worker nodes, with only the "socket exposer" container on the manager nodes.
+
+- Accounting at kernel level, by enforcing kernel calls with mechanisms like [SELinux](https://en.wikipedia.org/wiki/Security-Enhanced_Linux),
+  to only allows an identified set of actions for Traefik's process (or the "socket exposer" process).
+
+Use the following ressources to get started:
+
+- [Traefik issue GH-4174 about security with Docker socket](https://github.com/containous/traefik/issues/4174)
+- [Inspecting Docker Activity with Socat](https://developers.redhat.com/blog/2015/02/25/inspecting-docker-activity-with-socat/)
+- [Letting Traefik run on Worker Nodes](https://blog.mikesir87.io/2018/07/letting-traefik-run-on-worker-nodes/)
+- [Docker Socket Proxy from Tecnativa](https://github.com/Tecnativa/docker-socket-proxy)
+
 ## Labels: overriding default behavior
 
 ### Using Docker with Swarm Mode
@@ -193,6 +257,20 @@ services:
         traefik.docker.network: traefik
 ```
 
+Required labels:
+
+- `traefik.frontend.rule`
+- `traefik.port` - Without this the debug logs will show this service is deliberately filtered out.
+- `traefik.docker.network` - Without this a 504 may occur.
+
+#### Troubleshooting
+
+If service doesn't show up in the dashboard, check the debug logs to see if the port is missing:
+`Filtering container without port, <SERVICE_NAME>: port label is missing, ...')`
+
+If `504 Gateway Timeout` occurs and there are networks used, ensure that `traefik.docker.network` is defined. 
+The complete name is required, meaning if the network is internal the name needs to be `<project_name>_<network_name>`.
+
 ### Using Docker Compose
 
 If you are intending to use only Docker Compose commands (e.g. `docker-compose up --scale whoami=2 -d`), labels should be under your service, otherwise they will be ignored.
@@ -209,97 +287,109 @@ services:
 
 Labels can be used on containers to override default behavior.
 
-| Label                                                               | Description                                                                                                                                                                                                                      |
-|---------------------------------------------------------------------|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
-| `traefik.docker.network`                                            | Overrides the default docker network to use for connections to the container. [1]                                                                                                                                                |
-| `traefik.domain`                                                    | Sets the default base domain for the frontend rules. For more information, check the [Container Labels section's of the user guide "Let's Encrypt & Docker"](/user-guide/docker-and-lets-encrypt/#container-labels)              |
-| `traefik.enable=false`                                              | Disables this container in Traefik.                                                                                                                                                                                              |
-| `traefik.port=80`                                                   | Registers this port. Useful when the container exposes multiples ports.                                                                                                                                                          |
-| `traefik.tags=foo,bar,myTag`                                        | Adds Traefik tags to the Docker container/service to be used in [constraints](/configuration/commons/#constraints).                                                                                                              |
-| `traefik.protocol=https`                                            | Overrides the default `http` protocol                                                                                                                                                                                            |
-| `traefik.weight=10`                                                 | Assigns this weight to the container                                                                                                                                                                                             |
-| `traefik.backend=foo`                                               | Gives the name `foo` to the generated backend for this container.                                                                                                                                                                |
-| `traefik.backend.buffering.maxRequestBodyBytes=0`                   | See [buffering](/configuration/commons/#buffering) section.                                                                                                                                                                      |
-| `traefik.backend.buffering.maxResponseBodyBytes=0`                  | See [buffering](/configuration/commons/#buffering) section.                                                                                                                                                                      |
-| `traefik.backend.buffering.memRequestBodyBytes=0`                   | See [buffering](/configuration/commons/#buffering) section.                                                                                                                                                                      |
-| `traefik.backend.buffering.memResponseBodyBytes=0`                  | See [buffering](/configuration/commons/#buffering) section.                                                                                                                                                                      |
-| `traefik.backend.buffering.retryExpression=EXPR`                    | See [buffering](/configuration/commons/#buffering) section.                                                                                                                                                                      |
-| `traefik.backend.circuitbreaker.expression=EXPR`                    | Creates a [circuit breaker](/basics/#backends) to be used against the backend                                                                                                                                                    |
-| `traefik.backend.responseForwarding.flushInterval=10ms`             | Defines the interval between two flushes when forwarding response from backend to client.                                                                                                                                        |
-| `traefik.backend.healthcheck.path=/health`                          | Enables health check for the backend, hitting the container at `path`.                                                                                                                                                           |
-| `traefik.backend.healthcheck.interval=1s`                           | Defines the health check interval.                                                                                                                                                                                               |
-| `traefik.backend.healthcheck.port=8080`                             | Sets a different port for the health check.                                                                                                                                                                                      |
-| `traefik.backend.healthcheck.scheme=http`                           | Overrides the server URL scheme.                                                                                                                                                                                                 |
-| `traefik.backend.healthcheck.hostname=foobar.com`                   | Defines the health check hostname.                                                                                                                                                                                               |
-| `traefik.backend.healthcheck.headers=EXPR`                          | Defines the health check request headers <br>Format:  <code>HEADER:value&vert;&vert;HEADER2:value2</code>                                                                                                                        |
-| `traefik.backend.loadbalancer.method=drr`                           | Overrides the default `wrr` load balancer algorithm                                                                                                                                                                              |
-| `traefik.backend.loadbalancer.stickiness=true`                      | Enables backend sticky sessions                                                                                                                                                                                                  |
-| `traefik.backend.loadbalancer.stickiness.cookieName=NAME`           | Sets the cookie name manually for sticky sessions                                                                                                                                                                                |
-| `traefik.backend.loadbalancer.sticky=true`                          | Enables backend sticky sessions (DEPRECATED)                                                                                                                                                                                     |
-| `traefik.backend.loadbalancer.swarm=true`                           | Uses Swarm's inbuilt load balancer (only relevant under Swarm Mode).                                                                                                                                                             |
-| `traefik.backend.maxconn.amount=10`                                 | Sets a maximum number of connections to the backend.<br>Must be used in conjunction with the below label to take effect.                                                                                                         |
-| `traefik.backend.maxconn.extractorfunc=client.ip`                   | Sets the function to be used against the request to determine what to limit maximum connections to the backend by.<br>Must be used in conjunction with the above label to take effect.                                           |
-| `traefik.frontend.auth.basic=EXPR`                                  | Sets the basic authentication to this frontend in CSV format: `User:Hash,User:Hash` [2] (DEPRECATED).                                                                                                                            |
-| `traefik.frontend.auth.basic.removeHeader=true`                     | If set to `true`, removes the `Authorization` header.                                                                                                                                                                            |
-| `traefik.frontend.auth.basic.users=EXPR`                            | Sets the basic authentication to this frontend in CSV format: `User:Hash,User:Hash` [2].                                                                                                                                         |
-| `traefik.frontend.auth.basic.usersFile=/path/.htpasswd`             | Sets the basic authentication with an external file; if users and usersFile are provided, both are merged, with external file contents having precedence.                                                                        |
-| `traefik.frontend.auth.digest.removeHeader=true`                    | If set to `true`, removes the `Authorization` header.                                                                                                                                                                            |
-| `traefik.frontend.auth.digest.users=EXPR`                           | Sets the digest authentication to this frontend in CSV format: `User:Realm:Hash,User:Realm:Hash`.                                                                                                                                |
-| `traefik.frontend.auth.digest.usersFile=/path/.htdigest`            | Sets the digest authentication with an external file; if users and usersFile are provided, both are merged, with external file contents having precedence.                                                                       |
-| `traefik.frontend.auth.forward.address=https://example.com`         | Sets the URL of the authentication server.                                                                                                                                                                                       |
-| `traefik.frontend.auth.forward.authResponseHeaders=EXPR`            | Sets the forward authentication authResponseHeaders in CSV format: `X-Auth-User,X-Auth-Header`                                                                                                                                   |
-| `traefik.frontend.auth.forward.tls.ca=/path/ca.pem`                 | Sets the Certificate Authority (CA) for the TLS connection with the authentication server.                                                                                                                                       |
-| `traefik.frontend.auth.forward.tls.caOptional=true`                 | Checks the certificates if present but do not force to be signed by a specified Certificate Authority (CA).                                                                                                                      |
-| `traefik.frontend.auth.forward.tls.cert=/path/server.pem`           | Sets the Certificate for the TLS connection with the authentication server.                                                                                                                                                      |
-| `traefik.frontend.auth.forward.tls.insecureSkipVerify=true`         | If set to true invalid SSL certificates are accepted.                                                                                                                                                                            |
-| `traefik.frontend.auth.forward.tls.key=/path/server.key`            | Sets the Certificate for the TLS connection with the authentication server.                                                                                                                                                      |
-| `traefik.frontend.auth.forward.trustForwardHeader=true`             | Trusts X-Forwarded-* headers.                                                                                                                                                                                                    |
-| `traefik.frontend.auth.headerField=X-WebAuth-User`                  | Sets the header user to pass the authenticated user to the application.                                                                                                                                                          |
-| `traefik.frontend.entryPoints=http,https`                           | Assigns this frontend to entry points `http` and `https`.<br>Overrides `defaultEntryPoints`                                                                                                                                      |
-| `traefik.frontend.errors.<name>.backend=NAME`                       | See [custom error pages](/configuration/commons/#custom-error-pages) section.                                                                                                                                                    |
-| `traefik.frontend.errors.<name>.query=PATH`                         | See [custom error pages](/configuration/commons/#custom-error-pages) section.                                                                                                                                                    |
-| `traefik.frontend.errors.<name>.status=RANGE`                       | See [custom error pages](/configuration/commons/#custom-error-pages) section.                                                                                                                                                    |
-| `traefik.frontend.passHostHeader=true`                              | Forwards client `Host` header to the backend.                                                                                                                                                                                    |
-| `traefik.frontend.passTLSClientCert.infos.notAfter=true`            | Add the noAfter field in a escaped client infos in the `X-Forwarded-Ssl-Client-Cert-Infos` header.                                                                                                                               |
-| `traefik.frontend.passTLSClientCert.infos.notBefore=true`           | Add the noBefore field in a escaped client infos in the `X-Forwarded-Ssl-Client-Cert-Infos` header.                                                                                                                              |
-| `traefik.frontend.passTLSClientCert.infos.sans=true`                | Add the sans field in a escaped client infos in the `X-Forwarded-Ssl-Client-Cert-Infos` header.                                                                                                                                  |
-| `traefik.frontend.passTLSClientCert.infos.subject.commonName=true`  | Add the subject.commonName field in a escaped client infos in the `X-Forwarded-Ssl-Client-Cert-Infos` header.                                                                                                                    |
-| `traefik.frontend.passTLSClientCert.infos.subject.country=true`     | Add the subject.country field in a escaped client infos in the `X-Forwarded-Ssl-Client-Cert-Infos` header.                                                                                                                       |
-| `traefik.frontend.passTLSClientCert.infos.subject.locality=true`    | Add the subject.locality field in a escaped client infos in the `X-Forwarded-Ssl-Client-Cert-Infos` header.                                                                                                                      |
-| `traefik.frontend.passTLSClientCert.infos.subject.organization=true`| Add the subject.organization field in a escaped client infos in the `X-Forwarded-Ssl-Client-Cert-Infos` header.                                                                                                                  |
-| `traefik.frontend.passTLSClientCert.infos.subject.province=true`    | Add the subject.province field in a escaped client infos in the `X-Forwarded-Ssl-Client-Cert-Infos` header.                                                                                                                      |
-| `traefik.frontend.passTLSClientCert.infos.subject.serialNumber=true`| Add the subject.serialNumber field in a escaped client infos in the `X-Forwarded-Ssl-Client-Cert-Infos` header.                                                                                                                  |
-| `traefik.frontend.passTLSClientCert.pem=true`                       | Pass the escaped pem in the `X-Forwarded-Ssl-Client-Cert` header.                                                                                                                                                                |
-| `traefik.frontend.passTLSCert=true`                                 | Forwards TLS Client certificates to the backend (DEPRECATED).                                                                                                                                                                    |
-| `traefik.frontend.priority=10`                                      | Overrides default frontend priority                                                                                                                                                                                              |
-| `traefik.frontend.rateLimit.extractorFunc=EXP`                      | See [rate limiting](/configuration/commons/#rate-limiting) section.                                                                                                                                                              |
-| `traefik.frontend.rateLimit.rateSet.<name>.period=6`                | See [rate limiting](/configuration/commons/#rate-limiting) section.                                                                                                                                                              |
-| `traefik.frontend.rateLimit.rateSet.<name>.average=6`               | See [rate limiting](/configuration/commons/#rate-limiting) section.                                                                                                                                                              |
-| `traefik.frontend.rateLimit.rateSet.<name>.burst=6`                 | See [rate limiting](/configuration/commons/#rate-limiting) section.                                                                                                                                                              |
-| `traefik.frontend.redirect.entryPoint=https`                        | Enables Redirect to another entryPoint to this frontend (e.g. HTTPS)                                                                                                                                                             |
-| `traefik.frontend.redirect.regex=^http://localhost/(.*)`            | Redirects to another URL to this frontend.<br>Must be set with `traefik.frontend.redirect.replacement`.                                                                                                                          |
-| `traefik.frontend.redirect.replacement=http://mydomain/$1`          | Redirects to another URL to this frontend.<br>Must be set with `traefik.frontend.redirect.regex`.                                                                                                                                |
-| `traefik.frontend.redirect.permanent=true`                          | Returns 301 instead of 302.                                                                                                                                                                                                      |
-| `traefik.frontend.rule=EXPR`                                        | Overrides the default frontend rule. Default: `Host:{containerName}.{domain}` or `Host:{service}.{project_name}.{domain}` if you are using `docker-compose`.                                                                     |
-| `traefik.frontend.whiteList.sourceRange=RANGE`                      | Sets a list of IP-Ranges which are allowed to access.<br>An unset or empty list allows all Source-IPs to access.<br>If one of the Net-Specifications are invalid, the whole list is invalid and allows all Source-IPs to access. |
-| `traefik.frontend.whiteList.useXForwardedFor=true`                  | Uses `X-Forwarded-For` header as valid source of IP for the white list.                                                                                                                                                          |
+| Label                                                                   | Description                                                                                                                                                                                                                      |
+|-------------------------------------------------------------------------|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
+| `traefik.docker.network`                                                | Overrides the default docker network to use for connections to the container. [1]                                                                                                                                                |
+| `traefik.domain`                                                        | Sets the default base domain for the frontend rules. For more information, check the [Container Labels section's of the user guide "Let's Encrypt & Docker"](/user-guide/docker-and-lets-encrypt/#container-labels)              |
+| `traefik.enable=false`                                                  | Disables this container in Traefik.                                                                                                                                                                                              |
+| `traefik.port=80`                                                       | Registers this port. Useful when the container exposes multiples ports.                                                                                                                                                          |
+| `traefik.tags=foo,bar,myTag`                                            | Adds Traefik tags to the Docker container/service to be used in [constraints](/configuration/commons/#constraints).                                                                                                              |
+| `traefik.protocol=https`                                                | Overrides the default `http` protocol                                                                                                                                                                                            |
+| `traefik.weight=10`                                                     | Assigns this weight to the container                                                                                                                                                                                             |
+| `traefik.backend=foo`                                                   | Overrides the container name by `foo` in the generated name of the backend.                                                                                                                                                      |
+| `traefik.backend.buffering.maxRequestBodyBytes=0`                       | See [buffering](/configuration/commons/#buffering) section.                                                                                                                                                                      |
+| `traefik.backend.buffering.maxResponseBodyBytes=0`                      | See [buffering](/configuration/commons/#buffering) section.                                                                                                                                                                      |
+| `traefik.backend.buffering.memRequestBodyBytes=0`                       | See [buffering](/configuration/commons/#buffering) section.                                                                                                                                                                      |
+| `traefik.backend.buffering.memResponseBodyBytes=0`                      | See [buffering](/configuration/commons/#buffering) section.                                                                                                                                                                      |
+| `traefik.backend.buffering.retryExpression=EXPR`                        | See [buffering](/configuration/commons/#buffering) section.                                                                                                                                                                      |
+| `traefik.backend.circuitbreaker.expression=EXPR`                        | Creates a [circuit breaker](/basics/#backends) to be used against the backend                                                                                                                                                    |
+| `traefik.backend.responseForwarding.flushInterval=10ms`                 | Defines the interval between two flushes when forwarding response from backend to client.                                                                                                                                        |
+| `traefik.backend.healthcheck.path=/health`                              | Enables health check for the backend, hitting the container at `path`.                                                                                                                                                           |
+| `traefik.backend.healthcheck.interval=1s`                               | Defines the health check interval.                                                                                                                                                                                               |
+| `traefik.backend.healthcheck.port=8080`                                 | Sets a different port for the health check.                                                                                                                                                                                      |
+| `traefik.backend.healthcheck.scheme=http`                               | Overrides the server URL scheme.                                                                                                                                                                                                 |
+| `traefik.backend.healthcheck.hostname=foobar.com`                       | Defines the health check hostname.                                                                                                                                                                                               |
+| `traefik.backend.healthcheck.headers=EXPR`                              | Defines the health check request headers <br>Format:  <code>HEADER:value&vert;&vert;HEADER2:value2</code>                                                                                                                        |
+| `traefik.backend.loadbalancer.method=drr`                               | Overrides the default `wrr` load balancer algorithm                                                                                                                                                                              |
+| `traefik.backend.loadbalancer.stickiness=true`                          | Enables backend sticky sessions                                                                                                                                                                                                  |
+| `traefik.backend.loadbalancer.stickiness.cookieName=NAME`               | Sets the cookie name manually for sticky sessions                                                                                                                                                                                |
+| `traefik.backend.loadbalancer.sticky=true`                              | Enables backend sticky sessions (DEPRECATED)                                                                                                                                                                                     |
+| `traefik.backend.loadbalancer.swarm=true`                               | Uses Swarm's inbuilt load balancer (only relevant under Swarm Mode) [3].                                                                                                                                                         |
+| `traefik.backend.maxconn.amount=10`                                     | Sets a maximum number of connections to the backend.<br>Must be used in conjunction with the below label to take effect.                                                                                                         |
+| `traefik.backend.maxconn.extractorfunc=client.ip`                       | Sets the function to be used against the request to determine what to limit maximum connections to the backend by.<br>Must be used in conjunction with the above label to take effect.                                           |
+| `traefik.frontend.auth.basic=EXPR`                                      | Sets the basic authentication to this frontend in CSV format: `User:Hash,User:Hash` [2] (DEPRECATED).                                                                                                                            |
+| `traefik.frontend.auth.basic.removeHeader=true`                         | If set to `true`, removes the `Authorization` header.                                                                                                                                                                            |
+| `traefik.frontend.auth.basic.users=EXPR`                                | Sets the basic authentication to this frontend in CSV format: `User:Hash,User:Hash` [2].                                                                                                                                         |
+| `traefik.frontend.auth.basic.usersFile=/path/.htpasswd`                 | Sets the basic authentication with an external file; if users and usersFile are provided, both are merged, with external file contents having precedence.                                                                        |
+| `traefik.frontend.auth.digest.removeHeader=true`                        | If set to `true`, removes the `Authorization` header.                                                                                                                                                                            |
+| `traefik.frontend.auth.digest.users=EXPR`                               | Sets the digest authentication to this frontend in CSV format: `User:Realm:Hash,User:Realm:Hash`.                                                                                                                                |
+| `traefik.frontend.auth.digest.usersFile=/path/.htdigest`                | Sets the digest authentication with an external file; if users and usersFile are provided, both are merged, with external file contents having precedence.                                                                       |
+| `traefik.frontend.auth.forward.address=https://example.com`             | Sets the URL of the authentication server.                                                                                                                                                                                       |
+| `traefik.frontend.auth.forward.authResponseHeaders=EXPR`                | Sets the forward authentication authResponseHeaders in CSV format: `X-Auth-User,X-Auth-Header`                                                                                                                                   |
+| `traefik.frontend.auth.forward.tls.ca=/path/ca.pem`                     | Sets the Certificate Authority (CA) for the TLS connection with the authentication server.                                                                                                                                       |
+| `traefik.frontend.auth.forward.tls.caOptional=true`                     | Checks the certificates if present but do not force to be signed by a specified Certificate Authority (CA).                                                                                                                      |
+| `traefik.frontend.auth.forward.tls.cert=/path/server.pem`               | Sets the Certificate for the TLS connection with the authentication server.                                                                                                                                                      |
+| `traefik.frontend.auth.forward.tls.insecureSkipVerify=true`             | If set to true invalid SSL certificates are accepted.                                                                                                                                                                            |
+| `traefik.frontend.auth.forward.tls.key=/path/server.key`                | Sets the Certificate for the TLS connection with the authentication server.                                                                                                                                                      |
+| `traefik.frontend.auth.forward.trustForwardHeader=true`                 | Trusts X-Forwarded-* headers.                                                                                                                                                                                                    |
+| `traefik.frontend.auth.headerField=X-WebAuth-User`                      | Sets the header user to pass the authenticated user to the application.                                                                                                                                                          |
+| `traefik.frontend.entryPoints=http,https`                               | Assigns this frontend to entry points `http` and `https`.<br>Overrides `defaultEntryPoints`                                                                                                                                      |
+| `traefik.frontend.errors.<name>.backend=NAME`                           | See [custom error pages](/configuration/commons/#custom-error-pages) section.                                                                                                                                                    |
+| `traefik.frontend.errors.<name>.query=PATH`                             | See [custom error pages](/configuration/commons/#custom-error-pages) section.                                                                                                                                                    |
+| `traefik.frontend.errors.<name>.status=RANGE`                           | See [custom error pages](/configuration/commons/#custom-error-pages) section.                                                                                                                                                    |
+| `traefik.frontend.passHostHeader=true`                                  | Forwards client `Host` header to the backend.                                                                                                                                                                                    |
+| `traefik.frontend.passTLSClientCert.infos.issuer.commonName=true`       | Add the issuer.commonName field in a escaped client infos in the `X-Forwarded-Ssl-Client-Cert-Infos` header.                                                                                                                     |
+| `traefik.frontend.passTLSClientCert.infos.issuer.country=true`          | Add the issuer.country field in a escaped client infos in the `X-Forwarded-Ssl-Client-Cert-Infos` header.                                                                                                                        |
+| `traefik.frontend.passTLSClientCert.infos.issuer.domainComponent=true`  | Add the issuer.domainComponent field in a escaped client infos in the `X-Forwarded-Ssl-Client-Cert-Infos` header.                                                                                                                |
+| `traefik.frontend.passTLSClientCert.infos.issuer.locality=true`         | Add the issuer.locality field in a escaped client infos in the `X-Forwarded-Ssl-Client-Cert-Infos` header.                                                                                                                       |
+| `traefik.frontend.passTLSClientCert.infos.issuer.organization=true`     | Add the issuer.organization field in a escaped client infos in the `X-Forwarded-Ssl-Client-Cert-Infos` header.                                                                                                                   |
+| `traefik.frontend.passTLSClientCert.infos.issuer.province=true`         | Add the issuer.province field in a escaped client infos in the `X-Forwarded-Ssl-Client-Cert-Infos` header.                                                                                                                       |
+| `traefik.frontend.passTLSClientCert.infos.issuer.serialNumber=true`     | Add the issuer.serialNumber field in a escaped client infos in the `X-Forwarded-Ssl-Client-Cert-Infos` header.                                                                                                                   |
+| `traefik.frontend.passTLSClientCert.infos.notAfter=true`                | Add the noAfter field in a escaped client infos in the `X-Forwarded-Ssl-Client-Cert-Infos` header.                                                                                                                               |
+| `traefik.frontend.passTLSClientCert.infos.notBefore=true`               | Add the noBefore field in a escaped client infos in the `X-Forwarded-Ssl-Client-Cert-Infos` header.                                                                                                                              |
+| `traefik.frontend.passTLSClientCert.infos.sans=true`                    | Add the sans field in a escaped client infos in the `X-Forwarded-Ssl-Client-Cert-Infos` header.                                                                                                                                  |
+| `traefik.frontend.passTLSClientCert.infos.subject.commonName=true`      | Add the subject.commonName field in a escaped client infos in the `X-Forwarded-Ssl-Client-Cert-Infos` header.                                                                                                                    |
+| `traefik.frontend.passTLSClientCert.infos.subject.country=true`         | Add the subject.country field in a escaped client infos in the `X-Forwarded-Ssl-Client-Cert-Infos` header.                                                                                                                       |
+| `traefik.frontend.passTLSClientCert.infos.subject.domainComponent=true` | Add the subject.domainComponent field in a escaped client infos in the `X-Forwarded-Ssl-Client-Cert-Infos` header.                                                                                                               |
+| `traefik.frontend.passTLSClientCert.infos.subject.locality=true`        | Add the subject.locality field in a escaped client infos in the `X-Forwarded-Ssl-Client-Cert-Infos` header.                                                                                                                      |
+| `traefik.frontend.passTLSClientCert.infos.subject.organization=true`    | Add the subject.organization field in a escaped client infos in the `X-Forwarded-Ssl-Client-Cert-Infos` header.                                                                                                                  |
+| `traefik.frontend.passTLSClientCert.infos.subject.province=true`        | Add the subject.province field in a escaped client infos in the `X-Forwarded-Ssl-Client-Cert-Infos` header.                                                                                                                      |
+| `traefik.frontend.passTLSClientCert.infos.subject.serialNumber=true`    | Add the subject.serialNumber field in a escaped client infos in the `X-Forwarded-Ssl-Client-Cert-Infos` header.                                                                                                                  |
+| `traefik.frontend.passTLSClientCert.pem=true`                           | Pass the escaped pem in the `X-Forwarded-Ssl-Client-Cert` header.                                                                                                                                                                |
+| `traefik.frontend.passTLSCert=true`                                     | Forwards TLS Client certificates to the backend (DEPRECATED).                                                                                                                                                                    |
+| `traefik.frontend.priority=10`                                          | Overrides default frontend priority                                                                                                                                                                                              |
+| `traefik.frontend.rateLimit.extractorFunc=EXP`                          | See [rate limiting](/configuration/commons/#rate-limiting) section.                                                                                                                                                              |
+| `traefik.frontend.rateLimit.rateSet.<name>.period=6`                    | See [rate limiting](/configuration/commons/#rate-limiting) section.                                                                                                                                                              |
+| `traefik.frontend.rateLimit.rateSet.<name>.average=6`                   | See [rate limiting](/configuration/commons/#rate-limiting) section.                                                                                                                                                              |
+| `traefik.frontend.rateLimit.rateSet.<name>.burst=6`                     | See [rate limiting](/configuration/commons/#rate-limiting) section.                                                                                                                                                              |
+| `traefik.frontend.redirect.entryPoint=https`                            | Enables Redirect to another entryPoint to this frontend (e.g. HTTPS)                                                                                                                                                             |
+| `traefik.frontend.redirect.regex=^http://localhost/(.*)`                | Redirects to another URL to this frontend.<br>Must be set with `traefik.frontend.redirect.replacement`.                                                                                                                          |
+| `traefik.frontend.redirect.replacement=http://mydomain/$1`              | Redirects to another URL to this frontend.<br>Must be set with `traefik.frontend.redirect.regex`.                                                                                                                                |
+| `traefik.frontend.redirect.permanent=true`                              | Returns 301 instead of 302.                                                                                                                                                                                                      |
+| `traefik.frontend.rule=EXPR`                                            | Overrides the default frontend rule. Default: `Host:{containerName}.{domain}` or `Host:{service}.{project_name}.{domain}` if you are using `docker-compose`.                                                                     |
+| `traefik.frontend.whiteList.sourceRange=RANGE`                          | Sets a list of IP-Ranges which are allowed to access.<br>An unset or empty list allows all Source-IPs to access.<br>If one of the Net-Specifications are invalid, the whole list is invalid and allows all Source-IPs to access. |
+| `traefik.frontend.whiteList.useXForwardedFor=true`                      | Uses `X-Forwarded-For` header as valid source of IP for the white list.                                                                                                                                                          |
 
-[1] `traefik.docker.network`:
-If a container is linked to several networks, be sure to set the proper network name (you can check with `docker inspect <container_id>`) otherwise it will randomly pick one (depending on how docker is returning them).
+[1] `traefik.docker.network`:  
+If a container is linked to several networks, be sure to set the proper network name (you can check with `docker inspect <container_id>`) otherwise it will randomly pick one (depending on how docker is returning them).  
 For instance when deploying docker `stack` from compose files, the compose defined networks will be prefixed with the `stack` name.
 Or if your service references external network use it's name instead.
 
-[2] `traefik.frontend.auth.basic.users=EXPR `:  
+[2] `traefik.frontend.auth.basic.users=EXPR`:  
 To create `user:password` pair, it's possible to use this command:  
 `echo $(htpasswd -nb user password) | sed -e s/\\$/\\$\\$/g`.  
 The result will be `user:$$apr1$$9Cv/OMGj$$ZomWQzuQbL.3TRCS81A1g/`, note additional symbol `$` makes escaping.
 
+[3] `traefik.backend.loadbalancer.swarm`:  
+If you enable this option, Traefik will use the virtual IP provided by docker swarm instead of the containers IPs.
+Which means that Traefik will not perform any kind of load balancing and will delegate this task to swarm.  
+It also means that Traefik will manipulate only one backend, not one backend per container.
 
 #### Custom Headers
 
 | Label                                                 | Description                                                                                                                                                                         |
 |-------------------------------------------------------|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
-| `traefik.frontend.headers.customRequestHeaders=EXPR ` | Provides the container with custom request headers that will be appended to each request forwarded to the container.<br>Format: <code>HEADER:value&vert;&vert;HEADER2:value2</code> |
+| `traefik.frontend.headers.customRequestHeaders=EXPR`  | Provides the container with custom request headers that will be appended to each request forwarded to the container.<br>Format: <code>HEADER:value&vert;&vert;HEADER2:value2</code> |
 | `traefik.frontend.headers.customResponseHeaders=EXPR` | Appends the headers to each response returned by the container, before forwarding the response to the client.<br>Format: <code>HEADER:value&vert;&vert;HEADER2:value2</code>        |
 
 #### Security Headers
@@ -314,7 +404,7 @@ The result will be `user:$$apr1$$9Cv/OMGj$$ZomWQzuQbL.3TRCS81A1g/`, note additio
 | `traefik.frontend.headers.customFrameOptionsValue=VALUE` | Overrides the `X-Frame-Options` header with the custom value.                                                                                                                                       |
 | `traefik.frontend.headers.forceSTSHeader=false`          | Adds the STS  header to non-SSL requests.                                                                                                                                                           |
 | `traefik.frontend.headers.frameDeny=false`               | Adds the `X-Frame-Options` header with the value of `DENY`.                                                                                                                                         |
-| `traefik.frontend.headers.hostsProxyHeaders=EXPR `       | Provides a list of headers that the proxied hostname may be stored.<br>Format: `HEADER1,HEADER2`                                                                                                    |
+| `traefik.frontend.headers.hostsProxyHeaders=EXPR`        | Provides a list of headers that the proxied hostname may be stored.<br>Format: `HEADER1,HEADER2`                                                                                                    |
 | `traefik.frontend.headers.isDevelopment=false`           | This will cause the `AllowedHosts`, `SSLRedirect`, and `STSSeconds`/`STSIncludeSubdomains` options to be ignored during development.<br>When deploying to production, be sure to set this to false. |
 | `traefik.frontend.headers.publicKey=VALUE`               | Adds HPKP header.                                                                                                                                                                                   |
 | `traefik.frontend.headers.referrerPolicy=VALUE`          | Adds referrer policy  header.                                                                                                                                                                       |
@@ -335,63 +425,71 @@ You can define as many segments as ports exposed in a container.
 
 Segment labels override the default behavior.
 
-| Label                                                                              | Description                                                            |
-|------------------------------------------------------------------------------------|------------------------------------------------------------------------|
-| `traefik.<segment_name>.backend=BACKEND`                                           | Same as `traefik.backend`                                              |
-| `traefik.<segment_name>.domain=DOMAIN`                                             | Same as `traefik.domain`                                               |
-| `traefik.<segment_name>.port=PORT`                                                 | Same as `traefik.port`                                                 |
-| `traefik.<segment_name>.protocol=http`                                             | Same as `traefik.protocol`                                             |
-| `traefik.<segment_name>.weight=10`                                                 | Same as `traefik.weight`                                               |
-| `traefik.<segment_name>.frontend.auth.basic=EXPR`                                  | Same as `traefik.frontend.auth.basic`                                  |
-| `traefik.<segment_name>.frontend.auth.basic.removeHeader=true`                     | Same as `traefik.frontend.auth.basic.removeHeader`                     |
-| `traefik.<segment_name>.frontend.auth.basic.users=EXPR`                            | Same as `traefik.frontend.auth.basic.users`                            |
-| `traefik.<segment_name>.frontend.auth.basic.usersFile=/path/.htpasswd`             | Same as `traefik.frontend.auth.basic.usersFile`                        |
-| `traefik.<segment_name>.frontend.auth.digest.removeHeader=true`                    | Same as `traefik.frontend.auth.digest.removeHeader`                    |
-| `traefik.<segment_name>.frontend.auth.digest.users=EXPR`                           | Same as `traefik.frontend.auth.digest.users`                           |
-| `traefik.<segment_name>.frontend.auth.digest.usersFile=/path/.htdigest`            | Same as `traefik.frontend.auth.digest.usersFile`                       |
-| `traefik.<segment_name>.frontend.auth.forward.address=https://example.com`         | Same as `traefik.frontend.auth.forward.address`                        |
-| `traefik.<segment_name>.frontend.auth.forward.authResponseHeaders=EXPR`            | Same as `traefik.frontend.auth.forward.authResponseHeaders`            |
-| `traefik.<segment_name>.frontend.auth.forward.tls.ca=/path/ca.pem`                 | Same as `traefik.frontend.auth.forward.tls.ca`                         |
-| `traefik.<segment_name>.frontend.auth.forward.tls.caOptional=true`                 | Same as `traefik.frontend.auth.forward.tls.caOptional`                 |
-| `traefik.<segment_name>.frontend.auth.forward.tls.cert=/path/server.pem`           | Same as `traefik.frontend.auth.forward.tls.cert`                       |
-| `traefik.<segment_name>.frontend.auth.forward.tls.insecureSkipVerify=true`         | Same as `traefik.frontend.auth.forward.tls.insecureSkipVerify`         |
-| `traefik.<segment_name>.frontend.auth.forward.tls.key=/path/server.key`            | Same as `traefik.frontend.auth.forward.tls.key`                        |
-| `traefik.<segment_name>.frontend.auth.forward.trustForwardHeader=true`             | Same as `traefik.frontend.auth.forward.trustForwardHeader`             |
-| `traefik.<segment_name>.frontend.auth.headerField=X-WebAuth-User`                  | Same as `traefik.frontend.auth.headerField`                            |
-| `traefik.<segment_name>.frontend.entryPoints=https`                                | Same as `traefik.frontend.entryPoints`                                 |
-| `traefik.<segment_name>.frontend.errors.<name>.backend=NAME`                       | Same as `traefik.frontend.errors.<name>.backend`                       |
-| `traefik.<segment_name>.frontend.errors.<name>.query=PATH`                         | Same as `traefik.frontend.errors.<name>.query`                         |
-| `traefik.<segment_name>.frontend.errors.<name>.status=RANGE`                       | Same as `traefik.frontend.errors.<name>.status`                        |
-| `traefik.<segment_name>.frontend.passHostHeader=true`                              | Same as `traefik.frontend.passHostHeader`                              |
-| `traefik.<segment_name>.frontend.passTLSClientCert.infos.notAfter=true`            | Same as `traefik.frontend.passTLSClientCert.infos.notAfter`            |
-| `traefik.<segment_name>.frontend.passTLSClientCert.infos.notBefore=true`           | Same as `traefik.frontend.passTLSClientCert.infos.notBefore`           |
-| `traefik.<segment_name>.frontend.passTLSClientCert.infos.sans=true`                | Same as `traefik.frontend.passTLSClientCert.infos.sans`                |
-| `traefik.<segment_name>.frontend.passTLSClientCert.infos.subject.commonName=true`  | Same as `traefik.frontend.passTLSClientCert.infos.subject.commonName`  |
-| `traefik.<segment_name>.frontend.passTLSClientCert.infos.subject.country=true`     | Same as `traefik.frontend.passTLSClientCert.infos.subject.country`     |
-| `traefik.<segment_name>.frontend.passTLSClientCert.infos.subject.locality=true`    | Same as `traefik.frontend.passTLSClientCert.infos.subject.locality`    |
-| `traefik.<segment_name>.frontend.passTLSClientCert.infos.subject.organization=true`| Same as `traefik.frontend.passTLSClientCert.infos.subject.organization`|
-| `traefik.<segment_name>.frontend.passTLSClientCert.infos.subject.province=true`    | Same as `traefik.frontend.passTLSClientCert.infos.subject.province`    |
-| `traefik.<segment_name>.frontend.passTLSClientCert.infos.subject.serialNumber=true`| Same as `traefik.frontend.passTLSClientCert.infos.subject.serialNumber`|
-| `traefik.<segment_name>.frontend.passTLSClientCert.pem=true`                       | Same as `traefik.frontend.passTLSClientCert.infos.pem`                 |
-| `traefik.<segment_name>.frontend.passTLSCert=true`                                 | Same as `traefik.frontend.passTLSCert`                                 |
-| `traefik.<segment_name>.frontend.priority=10`                                      | Same as `traefik.frontend.priority`                                    |
-| `traefik.<segment_name>.frontend.rateLimit.extractorFunc=EXP`                      | Same as `traefik.frontend.rateLimit.extractorFunc`                     |
-| `traefik.<segment_name>.frontend.rateLimit.rateSet.<name>.period=6`                | Same as `traefik.frontend.rateLimit.rateSet.<name>.period`             |
-| `traefik.<segment_name>.frontend.rateLimit.rateSet.<name>.average=6`               | Same as `traefik.frontend.rateLimit.rateSet.<name>.average`            |
-| `traefik.<segment_name>.frontend.rateLimit.rateSet.<name>.burst=6`                 | Same as `traefik.frontend.rateLimit.rateSet.<name>.burst`              |
-| `traefik.<segment_name>.frontend.redirect.entryPoint=https`                        | Same as `traefik.frontend.redirect.entryPoint`                         |
-| `traefik.<segment_name>.frontend.redirect.regex=^http://localhost/(.*)`            | Same as `traefik.frontend.redirect.regex`                              |
-| `traefik.<segment_name>.frontend.redirect.replacement=http://mydomain/$1`          | Same as `traefik.frontend.redirect.replacement`                        |
-| `traefik.<segment_name>.frontend.redirect.permanent=true`                          | Same as `traefik.frontend.redirect.permanent`                          |
-| `traefik.<segment_name>.frontend.rule=EXP`                                         | Same as `traefik.frontend.rule`                                        |
-| `traefik.<segment_name>.frontend.whiteList.sourceRange=RANGE`                      | Same as `traefik.frontend.whiteList.sourceRange`                       |
-| `traefik.<segment_name>.frontend.whiteList.useXForwardedFor=true`                  | Same as `traefik.frontend.whiteList.useXForwardedFor`                  |
+| Label                                                                                  | Description                                                                |
+|----------------------------------------------------------------------------------------|----------------------------------------------------------------------------|
+| `traefik.<segment_name>.backend=BACKEND`                                               | Same as `traefik.backend`                                                  |
+| `traefik.<segment_name>.domain=DOMAIN`                                                 | Same as `traefik.domain`                                                   |
+| `traefik.<segment_name>.port=PORT`                                                     | Same as `traefik.port`                                                     |
+| `traefik.<segment_name>.protocol=http`                                                 | Same as `traefik.protocol`                                                 |
+| `traefik.<segment_name>.weight=10`                                                     | Same as `traefik.weight`                                                   |
+| `traefik.<segment_name>.frontend.auth.basic=EXPR`                                      | Same as `traefik.frontend.auth.basic`                                      |
+| `traefik.<segment_name>.frontend.auth.basic.removeHeader=true`                         | Same as `traefik.frontend.auth.basic.removeHeader`                         |
+| `traefik.<segment_name>.frontend.auth.basic.users=EXPR`                                | Same as `traefik.frontend.auth.basic.users`                                |
+| `traefik.<segment_name>.frontend.auth.basic.usersFile=/path/.htpasswd`                 | Same as `traefik.frontend.auth.basic.usersFile`                            |
+| `traefik.<segment_name>.frontend.auth.digest.removeHeader=true`                        | Same as `traefik.frontend.auth.digest.removeHeader`                        |
+| `traefik.<segment_name>.frontend.auth.digest.users=EXPR`                               | Same as `traefik.frontend.auth.digest.users`                               |
+| `traefik.<segment_name>.frontend.auth.digest.usersFile=/path/.htdigest`                | Same as `traefik.frontend.auth.digest.usersFile`                           |
+| `traefik.<segment_name>.frontend.auth.forward.address=https://example.com`             | Same as `traefik.frontend.auth.forward.address`                            |
+| `traefik.<segment_name>.frontend.auth.forward.authResponseHeaders=EXPR`                | Same as `traefik.frontend.auth.forward.authResponseHeaders`                |
+| `traefik.<segment_name>.frontend.auth.forward.tls.ca=/path/ca.pem`                     | Same as `traefik.frontend.auth.forward.tls.ca`                             |
+| `traefik.<segment_name>.frontend.auth.forward.tls.caOptional=true`                     | Same as `traefik.frontend.auth.forward.tls.caOptional`                     |
+| `traefik.<segment_name>.frontend.auth.forward.tls.cert=/path/server.pem`               | Same as `traefik.frontend.auth.forward.tls.cert`                           |
+| `traefik.<segment_name>.frontend.auth.forward.tls.insecureSkipVerify=true`             | Same as `traefik.frontend.auth.forward.tls.insecureSkipVerify`             |
+| `traefik.<segment_name>.frontend.auth.forward.tls.key=/path/server.key`                | Same as `traefik.frontend.auth.forward.tls.key`                            |
+| `traefik.<segment_name>.frontend.auth.forward.trustForwardHeader=true`                 | Same as `traefik.frontend.auth.forward.trustForwardHeader`                 |
+| `traefik.<segment_name>.frontend.auth.headerField=X-WebAuth-User`                      | Same as `traefik.frontend.auth.headerField`                                |
+| `traefik.<segment_name>.frontend.entryPoints=https`                                    | Same as `traefik.frontend.entryPoints`                                     |
+| `traefik.<segment_name>.frontend.errors.<name>.backend=NAME`                           | Same as `traefik.frontend.errors.<name>.backend`                           |
+| `traefik.<segment_name>.frontend.errors.<name>.query=PATH`                             | Same as `traefik.frontend.errors.<name>.query`                             |
+| `traefik.<segment_name>.frontend.errors.<name>.status=RANGE`                           | Same as `traefik.frontend.errors.<name>.status`                            |
+| `traefik.<segment_name>.frontend.passHostHeader=true`                                  | Same as `traefik.frontend.passHostHeader`                                  |
+| `traefik.<segment_name>.frontend.passTLSClientCert.infos.issuer.commonName=true`       | Same as `traefik.frontend.passTLSClientCert.infos.issuer.commonName`       |
+| `traefik.<segment_name>.frontend.passTLSClientCert.infos.issuer.country=true`          | Same as `traefik.frontend.passTLSClientCert.infos.issuer.country`          |
+| `traefik.<segment_name>.frontend.passTLSClientCert.infos.issuer.domainComponent=true`  | Same as `traefik.frontend.passTLSClientCert.infos.issuer.domainComponent`  |
+| `traefik.<segment_name>.frontend.passTLSClientCert.infos.issuer.locality=true`         | Same as `traefik.frontend.passTLSClientCert.infos.issuer.locality`         |
+| `traefik.<segment_name>.frontend.passTLSClientCert.infos.issuer.organization=true`     | Same as `traefik.frontend.passTLSClientCert.infos.issuer.organization`     |
+| `traefik.<segment_name>.frontend.passTLSClientCert.infos.issuer.province=true`         | Same as `traefik.frontend.passTLSClientCert.infos.issuer.province`         |
+| `traefik.<segment_name>.frontend.passTLSClientCert.infos.issuer.serialNumber=true`     | Same as `traefik.frontend.passTLSClientCert.infos.issuer.serialNumber`     |
+| `traefik.<segment_name>.frontend.passTLSClientCert.infos.notAfter=true`                | Same as `traefik.frontend.passTLSClientCert.infos.notAfter`                |
+| `traefik.<segment_name>.frontend.passTLSClientCert.infos.notBefore=true`               | Same as `traefik.frontend.passTLSClientCert.infos.notBefore`               |
+| `traefik.<segment_name>.frontend.passTLSClientCert.infos.sans=true`                    | Same as `traefik.frontend.passTLSClientCert.infos.sans`                    |
+| `traefik.<segment_name>.frontend.passTLSClientCert.infos.subject.commonName=true`      | Same as `traefik.frontend.passTLSClientCert.infos.subject.commonName`      |
+| `traefik.<segment_name>.frontend.passTLSClientCert.infos.subject.country=true`         | Same as `traefik.frontend.passTLSClientCert.infos.subject.country`         |
+| `traefik.<segment_name>.frontend.passTLSClientCert.infos.subject.domainComponent=true` | Same as `traefik.frontend.passTLSClientCert.infos.subject.domainComponent` |
+| `traefik.<segment_name>.frontend.passTLSClientCert.infos.subject.locality=true`        | Same as `traefik.frontend.passTLSClientCert.infos.subject.locality`        |
+| `traefik.<segment_name>.frontend.passTLSClientCert.infos.subject.organization=true`    | Same as `traefik.frontend.passTLSClientCert.infos.subject.organization`    |
+| `traefik.<segment_name>.frontend.passTLSClientCert.infos.subject.province=true`        | Same as `traefik.frontend.passTLSClientCert.infos.subject.province`        |
+| `traefik.<segment_name>.frontend.passTLSClientCert.infos.subject.serialNumber=true`    | Same as `traefik.frontend.passTLSClientCert.infos.subject.serialNumber`    |
+| `traefik.<segment_name>.frontend.passTLSClientCert.pem=true`                           | Same as `traefik.frontend.passTLSClientCert.infos.pem`                     |
+| `traefik.<segment_name>.frontend.passTLSCert=true`                                     | Same as `traefik.frontend.passTLSCert`                                     |
+| `traefik.<segment_name>.frontend.priority=10`                                          | Same as `traefik.frontend.priority`                                        |
+| `traefik.<segment_name>.frontend.rateLimit.extractorFunc=EXP`                          | Same as `traefik.frontend.rateLimit.extractorFunc`                         |
+| `traefik.<segment_name>.frontend.rateLimit.rateSet.<name>.period=6`                    | Same as `traefik.frontend.rateLimit.rateSet.<name>.period`                 |
+| `traefik.<segment_name>.frontend.rateLimit.rateSet.<name>.average=6`                   | Same as `traefik.frontend.rateLimit.rateSet.<name>.average`                |
+| `traefik.<segment_name>.frontend.rateLimit.rateSet.<name>.burst=6`                     | Same as `traefik.frontend.rateLimit.rateSet.<name>.burst`                  |
+| `traefik.<segment_name>.frontend.redirect.entryPoint=https`                            | Same as `traefik.frontend.redirect.entryPoint`                             |
+| `traefik.<segment_name>.frontend.redirect.regex=^http://localhost/(.*)`                | Same as `traefik.frontend.redirect.regex`                                  |
+| `traefik.<segment_name>.frontend.redirect.replacement=http://mydomain/$1`              | Same as `traefik.frontend.redirect.replacement`                            |
+| `traefik.<segment_name>.frontend.redirect.permanent=true`                              | Same as `traefik.frontend.redirect.permanent`                              |
+| `traefik.<segment_name>.frontend.rule=EXP`                                             | Same as `traefik.frontend.rule`                                            |
+| `traefik.<segment_name>.frontend.whiteList.sourceRange=RANGE`                          | Same as `traefik.frontend.whiteList.sourceRange`                           |
+| `traefik.<segment_name>.frontend.whiteList.useXForwardedFor=true`                      | Same as `traefik.frontend.whiteList.useXForwardedFor`                      |
 
 #### Custom Headers
 
 | Label                                                                | Description                                              |
 |----------------------------------------------------------------------|----------------------------------------------------------|
-| `traefik.<segment_name>.frontend.headers.customRequestHeaders=EXPR ` | Same as `traefik.frontend.headers.customRequestHeaders`  |
+| `traefik.<segment_name>.frontend.headers.customRequestHeaders=EXPR`  | Same as `traefik.frontend.headers.customRequestHeaders`  |
 | `traefik.<segment_name>.frontend.headers.customResponseHeaders=EXPR` | Same as `traefik.frontend.headers.customResponseHeaders` |
 
 #### Security Headers

docs/configuration/backends/ecs.md

@@ -136,78 +136,86 @@ Traefik needs the following policy to read ECS information:
 
 Labels can be used on task containers to override default behaviour:
 
-| Label                                                               | Description                                                                                                                                                                                                                   |
-|---------------------------------------------------------------------|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
-| `traefik.domain`                                                    | Sets the default base domain for frontend rules.                                                                                                                                                                                   |
-| `traefik.enable=false`                                              | Disables this container in Traefik.                                                                                                                                                                                            |
-| `traefik.port=80`                                                   | Overrides the default `port` value. Overrides `NetworkBindings` from Docker Container                                                                                                                                         |
-| `traefik.protocol=https`                                            | Overrides the default `http` protocol                                                                                                                                                                                         |
-| `traefik.weight=10`                                                 | Assigns this weight to the container                                                                                                                                                                                          |
-| `traefik.backend=foo`                                               | Gives the name `foo` to the generated backend for this container.                                                                                                                                                             |
-| `traefik.backend.buffering.maxRequestBodyBytes=0`                   | See [buffering](/configuration/commons/#buffering) section.                                                                                                                                                                   |
-| `traefik.backend.buffering.maxResponseBodyBytes=0`                  | See [buffering](/configuration/commons/#buffering) section.                                                                                                                                                                   |
-| `traefik.backend.buffering.memRequestBodyBytes=0`                   | See [buffering](/configuration/commons/#buffering) section.                                                                                                                                                                   |
-| `traefik.backend.buffering.memResponseBodyBytes=0`                  | See [buffering](/configuration/commons/#buffering) section.                                                                                                                                                                   |
-| `traefik.backend.buffering.retryExpression=EXPR`                    | See [buffering](/configuration/commons/#buffering) section.                                                                                                                                                                   |
-| `traefik.backend.circuitbreaker.expression=EXPR`                    | Creates a [circuit breaker](/basics/#backends) to be used against the backend                                                                                                                                                 |
-| `traefik.backend.responseForwarding.flushInterval=10ms`            | Defines the interval between two flushes when forwarding response from backend to client.                                                                                                                                     |
-| `traefik.backend.healthcheck.path=/health`                          | Enables health check for the backend, hitting the container at `path`.                                                                                                                                                        |
-| `traefik.backend.healthcheck.interval=1s`                           | Defines the health check interval. (Default: 30s)                                                                                                                                                                             |
-| `traefik.backend.healthcheck.scheme=http`                           | Overrides the server URL scheme.                                                                                                                                                                                              |
-| `traefik.backend.healthcheck.port=8080`                             | Sets a different port for the health check.                                                                                                                                                                                   |
-| `traefik.backend.healthcheck.hostname=foobar.com`                   | Defines the health check hostname.                                                                                                                                                                                            |
-| `traefik.backend.healthcheck.headers=EXPR`                          | Defines the health check request headers <br>Format:  <code>HEADER:value&vert;&vert;HEADER2:value2</code>                                                                                                                     |
-| `traefik.backend.loadbalancer.method=drr`                           | Overrides the default `wrr` load balancer algorithm                                                                                                                                                                           |
-| `traefik.backend.loadbalancer.stickiness=true`                      | Enables backend sticky sessions                                                                                                                                                                                               |
-| `traefik.backend.loadbalancer.stickiness.cookieName=NAME`           | Sets the cookie manually  name for sticky sessions                                                                                                                                                                            |
-| `traefik.backend.loadbalancer.sticky=true`                          | Enables backend sticky sessions (DEPRECATED)                                                                                                                                                                                  |
-| `traefik.backend.maxconn.amount=10`                                 | Sets a maximum number of connections to the backend.<br>Must be used in conjunction with the below label to take effect.                                                                                                      |
-| `traefik.backend.maxconn.extractorfunc=client.ip`                   | Sets the function to be used against the request to determine what to limit maximum connections to the backend by.<br>Must be used in conjunction with the above label to take effect.                                        |
-| `traefik.frontend.auth.basic=EXPR`                                  | Sets basic authentication to this frontend in CSV format: `User:Hash,User:Hash` (DEPRECATED).                                                                                                                                 |
-| `traefik.frontend.auth.basic.removeHeader=true`                     | If set to `true`, removes the `Authorization` header.                                                                                                                                                                         |
-| `traefik.frontend.auth.basic.users=EXPR`                            | Sets basic authentication to this frontend in CSV format: `User:Hash,User:Hash`.                                                                                                                                              |
-| `traefik.frontend.auth.basic.usersFile=/path/.htpasswd`             | Sets basic authentication with an external file; if users and usersFile are provided, both are merged, with external file contents having precedence.                                                                         |
-| `traefik.frontend.auth.digest.removeHeader=true`                    | If set to `true`, removes the `Authorization` header.                                                                                                                                                                         |
-| `traefik.frontend.auth.digest.users=EXPR`                           | Sets digest authentication to this frontend in CSV format: `User:Realm:Hash,User:Realm:Hash`.                                                                                                                                 |
-| `traefik.frontend.auth.digest.usersFile=/path/.htdigest`            | Sets digest authentication with an external file; if users and usersFile are provided, both are merged, with external file contents having precedence.                                                                        |
-| `traefik.frontend.auth.forward.address=https://example.com`         | Sets the URL of the authentication server.                                                                                                                                                                                    |
-| `traefik.frontend.auth.forward.authResponseHeaders=EXPR`            | Sets the forward authentication authResponseHeaders in CSV format: `X-Auth-User,X-Auth-Header`                                                                                                                                |
-| `traefik.frontend.auth.forward.tls.ca=/path/ca.pem`                 | Sets the Certificate Authority (CA) for the TLS connection with the authentication server.                                                                                                                                    |
-| `traefik.frontend.auth.forward.tls.caOptional=true`                 | Checks the certificates if present but do not force to be signed by a specified Certificate Authority (CA).                                                                                                                   |
-| `traefik.frontend.auth.forward.tls.cert=/path/server.pem`           | Sets the Certificate for the TLS connection with the authentication server.                                                                                                                                                   |
-| `traefik.frontend.auth.forward.tls.insecureSkipVerify=true`         | If set to true invalid SSL certificates are accepted.                                                                                                                                                                         |
-| `traefik.frontend.auth.forward.tls.key=/path/server.key`            | Sets the Certificate for the TLS connection with the authentication server.                                                                                                                                                   |
-| `traefik.frontend.auth.forward.trustForwardHeader=true`             | Trusts X-Forwarded-* headers.                                                                                                                                                                                                 |
-| `traefik.frontend.auth.headerField=X-WebAuth-User`                  | Sets the header used to pass the authenticated user to the application.                                                                                                                                                       |
-| `traefik.frontend.auth.removeHeader=true`                           | If set to true, removes the Authorization header.                                                                                                                                                                             |
-| `traefik.frontend.passTLSClientCert.infos.notAfter=true`            | Add the noAfter field in a escaped client infos in the `X-Forwarded-Ssl-Client-Cert-Infos` header.                                                                                                                            |
-| `traefik.frontend.passTLSClientCert.infos.notBefore=true`           | Add the noBefore field in a escaped client infos in the `X-Forwarded-Ssl-Client-Cert-Infos` header.                                                                                                                           |
-| `traefik.frontend.passTLSClientCert.infos.sans=true`                | Add the sans field in a escaped client infos in the `X-Forwarded-Ssl-Client-Cert-Infos` header.                                                                                                                               |
-| `traefik.frontend.passTLSClientCert.infos.subject.commonName=true`  | Add the subject.commonName field in a escaped client infos in the `X-Forwarded-Ssl-Client-Cert-Infos` header.                                                                                                                 |
-| `traefik.frontend.passTLSClientCert.infos.subject.country=true`     | Add the subject.country field in a escaped client infos in the `X-Forwarded-Ssl-Client-Cert-Infos` header.                                                                                                                    |
-| `traefik.frontend.passTLSClientCert.infos.subject.locality=true`    | Add the subject.locality field in a escaped client infos in the `X-Forwarded-Ssl-Client-Cert-Infos` header.                                                                                                                   |
-| `traefik.frontend.passTLSClientCert.infos.subject.organization=true`| Add the subject.organization field in a escaped client infos in the `X-Forwarded-Ssl-Client-Cert-Infos` header.                                                                                                               |
-| `traefik.frontend.passTLSClientCert.infos.subject.province=true`    | Add the subject.province field in a escaped client infos in the `X-Forwarded-Ssl-Client-Cert-Infos` header.                                                                                                                   |
-| `traefik.frontend.passTLSClientCert.infos.subject.serialNumber=true`| Add the subject.serialNumber field in a escaped client infos in the `X-Forwarded-Ssl-Client-Cert-Infos` header.                                                                                                               |
-| `traefik.frontend.passTLSClientCert.pem=true`                       | Pass the escaped pem in the `X-Forwarded-Ssl-Client-Cert` header.                                                                                                                                                           |
-| `traefik.frontend.entryPoints=http,https`                           | Assigns this frontend to entry points `http` and `https`.<br>Overrides `defaultEntryPoints`                                                                                                                               |
-| `traefik.frontend.errors.<name>.backend=NAME`                       | See [custom error pages](/configuration/commons/#custom-error-pages) section.                                                                                                                                                 |
-| `traefik.frontend.errors.<name>.query=PATH`                         | See [custom error pages](/configuration/commons/#custom-error-pages) section.                                                                                                                                                 |
-| `traefik.frontend.errors.<name>.status=RANGE`                       | See [custom error pages](/configuration/commons/#custom-error-pages) section.                                                                                                                                                 |
-| `traefik.frontend.passHostHeader=true`                              | Forwards client `Host` header to the backend.                                                                                                                                                                                 |
-| `traefik.frontend.passTLSCert=true`                                 | Forwards TLS Client certificates to the backend.                                                                                                                                                                              |
-| `traefik.frontend.priority=10`                                      | Overrides default frontend priority                                                                                                                                                                                           |
-| `traefik.frontend.rateLimit.extractorFunc=EXP`                      | See [rate limiting](/configuration/commons/#rate-limiting) section.                                                                                                                                                           |
-| `traefik.frontend.rateLimit.rateSet.<name>.period=6`                | See [rate limiting](/configuration/commons/#rate-limiting) section.                                                                                                                                                           |
-| `traefik.frontend.rateLimit.rateSet.<name>.average=6`               | See [rate limiting](/configuration/commons/#rate-limiting) section.                                                                                                                                                           |
-| `traefik.frontend.rateLimit.rateSet.<name>.burst=6`                 | See [rate limiting](/configuration/commons/#rate-limiting) section.                                                                                                                                                           |
-| `traefik.frontend.redirect.entryPoint=https`                        | Enables Redirect to another entryPoint to this frontend (e.g. HTTPS)                                                                                                                                                          |
-| `traefik.frontend.redirect.regex=^http://localhost/(.*)`            | Redirects to another URL to this frontend.<br>Must be set with `traefik.frontend.redirect.replacement`.                                                                                                                       |
-| `traefik.frontend.redirect.replacement=http://mydomain/$1`          | Redirects to another URL to this frontend.<br>Must be set with `traefik.frontend.redirect.regex`.                                                                                                                             |
-| `traefik.frontend.redirect.permanent=true`                          | Returns 301 instead of 302.                                                                                                                                                                                                   |
-| `traefik.frontend.rule=EXPR`                                        | Overrides the default frontend rule. Default: `Host:{instance_name}.{domain}`.                                                                                                                                                |
-| `traefik.frontend.whiteList.sourceRange=RANGE`                      | Sets a list of IP-Ranges which are allowed to access.<br>An unset or empty list allows all Source-IPs to access. If one of the Net-Specifications are invalid, the whole list is invalid and allows all Source-IPs to access. |
-| `traefik.frontend.whiteList.useXForwardedFor=true`                  | Uses `X-Forwarded-For` header as valid source of IP for the white list.                                                                                                                                                       |
+| Label                                                                   | Description                                                                                                                                                                                                                   |
+|-------------------------------------------------------------------------|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
+| `traefik.domain`                                                        | Sets the default base domain for frontend rules.                                                                                                                                                                              |
+| `traefik.enable=false`                                                  | Disables this container in Traefik.                                                                                                                                                                                           |
+| `traefik.port=80`                                                       | Overrides the default `port` value. Overrides `NetworkBindings` from Docker Container                                                                                                                                         |
+| `traefik.protocol=https`                                                | Overrides the default `http` protocol                                                                                                                                                                                         |
+| `traefik.weight=10`                                                     | Assigns this weight to the container                                                                                                                                                                                          |
+| `traefik.backend=foo`                                                   | Overrides the service name by `foo` in the generated name of the backend.                                                                                                                                                     |
+| `traefik.backend.buffering.maxRequestBodyBytes=0`                       | See [buffering](/configuration/commons/#buffering) section.                                                                                                                                                                   |
+| `traefik.backend.buffering.maxResponseBodyBytes=0`                      | See [buffering](/configuration/commons/#buffering) section.                                                                                                                                                                   |
+| `traefik.backend.buffering.memRequestBodyBytes=0`                       | See [buffering](/configuration/commons/#buffering) section.                                                                                                                                                                   |
+| `traefik.backend.buffering.memResponseBodyBytes=0`                      | See [buffering](/configuration/commons/#buffering) section.                                                                                                                                                                   |
+| `traefik.backend.buffering.retryExpression=EXPR`                        | See [buffering](/configuration/commons/#buffering) section.                                                                                                                                                                   |
+| `traefik.backend.circuitbreaker.expression=EXPR`                        | Creates a [circuit breaker](/basics/#backends) to be used against the backend                                                                                                                                                 |
+| `traefik.backend.responseForwarding.flushInterval=10ms`                 | Defines the interval between two flushes when forwarding response from backend to client.                                                                                                                                     |
+| `traefik.backend.healthcheck.path=/health`                              | Enables health check for the backend, hitting the container at `path`.                                                                                                                                                        |
+| `traefik.backend.healthcheck.interval=1s`                               | Defines the health check interval. (Default: 30s)                                                                                                                                                                             |
+| `traefik.backend.healthcheck.scheme=http`                               | Overrides the server URL scheme.                                                                                                                                                                                              |
+| `traefik.backend.healthcheck.port=8080`                                 | Sets a different port for the health check.                                                                                                                                                                                   |
+| `traefik.backend.healthcheck.hostname=foobar.com`                       | Defines the health check hostname.                                                                                                                                                                                            |
+| `traefik.backend.healthcheck.headers=EXPR`                              | Defines the health check request headers <br>Format:  <code>HEADER:value&vert;&vert;HEADER2:value2</code>                                                                                                                     |
+| `traefik.backend.loadbalancer.method=drr`                               | Overrides the default `wrr` load balancer algorithm                                                                                                                                                                           |
+| `traefik.backend.loadbalancer.stickiness=true`                          | Enables backend sticky sessions                                                                                                                                                                                               |
+| `traefik.backend.loadbalancer.stickiness.cookieName=NAME`               | Sets the cookie manually  name for sticky sessions                                                                                                                                                                            |
+| `traefik.backend.loadbalancer.sticky=true`                              | Enables backend sticky sessions (DEPRECATED)                                                                                                                                                                                  |
+| `traefik.backend.maxconn.amount=10`                                     | Sets a maximum number of connections to the backend.<br>Must be used in conjunction with the below label to take effect.                                                                                                      |
+| `traefik.backend.maxconn.extractorfunc=client.ip`                       | Sets the function to be used against the request to determine what to limit maximum connections to the backend by.<br>Must be used in conjunction with the above label to take effect.                                        |
+| `traefik.frontend.auth.basic=EXPR`                                      | Sets basic authentication to this frontend in CSV format: `User:Hash,User:Hash` (DEPRECATED).                                                                                                                                 |
+| `traefik.frontend.auth.basic.removeHeader=true`                         | If set to `true`, removes the `Authorization` header.                                                                                                                                                                         |
+| `traefik.frontend.auth.basic.users=EXPR`                                | Sets basic authentication to this frontend in CSV format: `User:Hash,User:Hash`.                                                                                                                                              |
+| `traefik.frontend.auth.basic.usersFile=/path/.htpasswd`                 | Sets basic authentication with an external file; if users and usersFile are provided, both are merged, with external file contents having precedence.                                                                         |
+| `traefik.frontend.auth.digest.removeHeader=true`                        | If set to `true`, removes the `Authorization` header.                                                                                                                                                                         |
+| `traefik.frontend.auth.digest.users=EXPR`                               | Sets digest authentication to this frontend in CSV format: `User:Realm:Hash,User:Realm:Hash`.                                                                                                                                 |
+| `traefik.frontend.auth.digest.usersFile=/path/.htdigest`                | Sets digest authentication with an external file; if users and usersFile are provided, both are merged, with external file contents having precedence.                                                                        |
+| `traefik.frontend.auth.forward.address=https://example.com`             | Sets the URL of the authentication server.                                                                                                                                                                                    |
+| `traefik.frontend.auth.forward.authResponseHeaders=EXPR`                | Sets the forward authentication authResponseHeaders in CSV format: `X-Auth-User,X-Auth-Header`                                                                                                                                |
+| `traefik.frontend.auth.forward.tls.ca=/path/ca.pem`                     | Sets the Certificate Authority (CA) for the TLS connection with the authentication server.                                                                                                                                    |
+| `traefik.frontend.auth.forward.tls.caOptional=true`                     | Checks the certificates if present but do not force to be signed by a specified Certificate Authority (CA).                                                                                                                   |
+| `traefik.frontend.auth.forward.tls.cert=/path/server.pem`               | Sets the Certificate for the TLS connection with the authentication server.                                                                                                                                                   |
+| `traefik.frontend.auth.forward.tls.insecureSkipVerify=true`             | If set to true invalid SSL certificates are accepted.                                                                                                                                                                         |
+| `traefik.frontend.auth.forward.tls.key=/path/server.key`                | Sets the Certificate for the TLS connection with the authentication server.                                                                                                                                                   |
+| `traefik.frontend.auth.forward.trustForwardHeader=true`                 | Trusts X-Forwarded-* headers.                                                                                                                                                                                                 |
+| `traefik.frontend.auth.headerField=X-WebAuth-User`                      | Sets the header used to pass the authenticated user to the application.                                                                                                                                                       |
+| `traefik.frontend.auth.removeHeader=true`                               | If set to true, removes the Authorization header.                                                                                                                                                                             |
+| `traefik.frontend.passTLSClientCert.infos.issuer.commonName=true`       | Add the issuer.commonName field in a escaped client infos in the `X-Forwarded-Ssl-Client-Cert-Infos` header.                                                                                                                  |
+| `traefik.frontend.passTLSClientCert.infos.issuer.country=true`          | Add the issuer.country field in a escaped client infos in the `X-Forwarded-Ssl-Client-Cert-Infos` header.                                                                                                                     |
+| `traefik.frontend.passTLSClientCert.infos.issuer.domainComponent=true`  | Add the issuer.domainComponent field in a escaped client infos in the `X-Forwarded-Ssl-Client-Cert-Infos` header.                                                                                                            |
+| `traefik.frontend.passTLSClientCert.infos.issuer.locality=true`         | Add the issuer.locality field in a escaped client infos in the `X-Forwarded-Ssl-Client-Cert-Infos` header.                                                                                                                    |
+| `traefik.frontend.passTLSClientCert.infos.issuer.organization=true`     | Add the issuer.organization field in a escaped client infos in the `X-Forwarded-Ssl-Client-Cert-Infos` header.                                                                                                                |
+| `traefik.frontend.passTLSClientCert.infos.issuer.province=true`         | Add the issuer.province field in a escaped client infos in the `X-Forwarded-Ssl-Client-Cert-Infos` header.                                                                                                                    |
+| `traefik.frontend.passTLSClientCert.infos.issuer.serialNumber=true`     | Add the issuer.serialNumber field in a escaped client infos in the `X-Forwarded-Ssl-Client-Cert-Infos` header.                                                                                                                |
+| `traefik.frontend.passTLSClientCert.infos.notAfter=true`                | Add the noAfter field in a escaped client infos in the `X-Forwarded-Ssl-Client-Cert-Infos` header.                                                                                                                            |
+| `traefik.frontend.passTLSClientCert.infos.notBefore=true`               | Add the noBefore field in a escaped client infos in the `X-Forwarded-Ssl-Client-Cert-Infos` header.                                                                                                                           |
+| `traefik.frontend.passTLSClientCert.infos.sans=true`                    | Add the sans field in a escaped client infos in the `X-Forwarded-Ssl-Client-Cert-Infos` header.                                                                                                                               |
+| `traefik.frontend.passTLSClientCert.infos.subject.commonName=true`      | Add the subject.commonName field in a escaped client infos in the `X-Forwarded-Ssl-Client-Cert-Infos` header.                                                                                                                 |
+| `traefik.frontend.passTLSClientCert.infos.subject.country=true`         | Add the subject.country field in a escaped client infos in the `X-Forwarded-Ssl-Client-Cert-Infos` header.                                                                                                                    |
+| `traefik.frontend.passTLSClientCert.infos.subject.domainComponent=true` | Add the subject.domainComponent field in a escaped client infos in the `X-Forwarded-Ssl-Client-Cert-Infos` header.                                                                                                           |
+| `traefik.frontend.passTLSClientCert.infos.subject.locality=true`        | Add the subject.locality field in a escaped client infos in the `X-Forwarded-Ssl-Client-Cert-Infos` header.                                                                                                                   |
+| `traefik.frontend.passTLSClientCert.infos.subject.organization=true`    | Add the subject.organization field in a escaped client infos in the `X-Forwarded-Ssl-Client-Cert-Infos` header.                                                                                                               |
+| `traefik.frontend.passTLSClientCert.infos.subject.province=true`        | Add the subject.province field in a escaped client infos in the `X-Forwarded-Ssl-Client-Cert-Infos` header.                                                                                                                   |
+| `traefik.frontend.passTLSClientCert.infos.subject.serialNumber=true`    | Add the subject.serialNumber field in a escaped client infos in the `X-Forwarded-Ssl-Client-Cert-Infos` header.                                                                                                               |
+| `traefik.frontend.passTLSClientCert.pem=true`                           | Pass the escaped pem in the `X-Forwarded-Ssl-Client-Cert` header.                                                                                                                                                             |
+| `traefik.frontend.entryPoints=http,https`                               | Assigns this frontend to entry points `http` and `https`.<br>Overrides `defaultEntryPoints`                                                                                                                                   |
+| `traefik.frontend.errors.<name>.backend=NAME`                           | See [custom error pages](/configuration/commons/#custom-error-pages) section.                                                                                                                                                 |
+| `traefik.frontend.errors.<name>.query=PATH`                             | See [custom error pages](/configuration/commons/#custom-error-pages) section.                                                                                                                                                 |
+| `traefik.frontend.errors.<name>.status=RANGE`                           | See [custom error pages](/configuration/commons/#custom-error-pages) section.                                                                                                                                                 |
+| `traefik.frontend.passHostHeader=true`                                  | Forwards client `Host` header to the backend.                                                                                                                                                                                 |
+| `traefik.frontend.passTLSCert=true`                                     | Forwards TLS Client certificates to the backend.                                                                                                                                                                              |
+| `traefik.frontend.priority=10`                                          | Overrides default frontend priority                                                                                                                                                                                           |
+| `traefik.frontend.rateLimit.extractorFunc=EXP`                          | See [rate limiting](/configuration/commons/#rate-limiting) section.                                                                                                                                                           |
+| `traefik.frontend.rateLimit.rateSet.<name>.period=6`                    | See [rate limiting](/configuration/commons/#rate-limiting) section.                                                                                                                                                           |
+| `traefik.frontend.rateLimit.rateSet.<name>.average=6`                   | See [rate limiting](/configuration/commons/#rate-limiting) section.                                                                                                                                                           |
+| `traefik.frontend.rateLimit.rateSet.<name>.burst=6`                     | See [rate limiting](/configuration/commons/#rate-limiting) section.                                                                                                                                                           |
+| `traefik.frontend.redirect.entryPoint=https`                            | Enables Redirect to another entryPoint to this frontend (e.g. HTTPS)                                                                                                                                                          |
+| `traefik.frontend.redirect.regex=^http://localhost/(.*)`                | Redirects to another URL to this frontend.<br>Must be set with `traefik.frontend.redirect.replacement`.                                                                                                                       |
+| `traefik.frontend.redirect.replacement=http://mydomain/$1`              | Redirects to another URL to this frontend.<br>Must be set with `traefik.frontend.redirect.regex`.                                                                                                                             |
+| `traefik.frontend.redirect.permanent=true`                              | Returns 301 instead of 302.                                                                                                                                                                                                   |
+| `traefik.frontend.rule=EXPR`                                            | Overrides the default frontend rule. Default: `Host:{instance_name}.{domain}`.                                                                                                                                                |
+| `traefik.frontend.whiteList.sourceRange=RANGE`                          | Sets a list of IP-Ranges which are allowed to access.<br>An unset or empty list allows all Source-IPs to access. If one of the Net-Specifications are invalid, the whole list is invalid and allows all Source-IPs to access. |
+| `traefik.frontend.whiteList.useXForwardedFor=true`                      | Uses `X-Forwarded-For` header as valid source of IP for the white list.                                                                                                                                                       |
 
 ### Custom Headers
 
@@ -249,58 +257,66 @@ You can define as many segments as ports exposed in an application.
 
 Segment labels override the default behavior.
 
-| Label                                                                               | Description                                                             |
-|-------------------------------------------------------------------------------------|-------------------------------------------------------------------------|
-| `traefik.<segment_name>.backend=BACKEND`                                            | Same as `traefik.backend`                                               |
-| `traefik.<segment_name>.domain=DOMAIN`                                              | Same as `traefik.domain`                                                |
-| `traefik.<segment_name>.port=PORT`                                                  | Same as `traefik.port`                                                  |
-| `traefik.<segment_name>.protocol=http`                                              | Same as `traefik.protocol`                                              |
-| `traefik.<segment_name>.weight=10`                                                  | Same as `traefik.weight`                                                |
-| `traefik.<segment_name>.frontend.auth.basic=EXPR`                                   | Same as `traefik.frontend.auth.basic`                                   |
-| `traefik.<segment_name>.frontend.auth.basic.removeHeader=true`                      | Same as `traefik.frontend.auth.basic.removeHeader`                      |
-| `traefik.<segment_name>.frontend.auth.basic.users=EXPR`                             | Same as `traefik.frontend.auth.basic.users`                             |
-| `traefik.<segment_name>.frontend.auth.basic.usersFile=/path/.htpasswd`              | Same as `traefik.frontend.auth.basic.usersFile`                         |
-| `traefik.<segment_name>.frontend.auth.digest.removeHeader=true`                     | Same as `traefik.frontend.auth.digest.removeHeader`                     |
-| `traefik.<segment_name>.frontend.auth.digest.users=EXPR`                            | Same as `traefik.frontend.auth.digest.users`                            |
-| `traefik.<segment_name>.frontend.auth.digest.usersFile=/path/.htdigest`             | Same as `traefik.frontend.auth.digest.usersFile`                        |
-| `traefik.<segment_name>.frontend.auth.forward.address=https://example.com`          | Same as `traefik.frontend.auth.forward.address`                         |
-| `traefik.<segment_name>.frontend.auth.forward.authResponseHeaders=EXPR`             | Same as `traefik.frontend.auth.forward.authResponseHeaders`             |
-| `traefik.<segment_name>.frontend.auth.forward.tls.ca=/path/ca.pem`                  | Same as `traefik.frontend.auth.forward.tls.ca`                          |
-| `traefik.<segment_name>.frontend.auth.forward.tls.caOptional=true`                  | Same as `traefik.frontend.auth.forward.tls.caOptional`                  |
-| `traefik.<segment_name>.frontend.auth.forward.tls.cert=/path/server.pem`            | Same as `traefik.frontend.auth.forward.tls.cert`                        |
-| `traefik.<segment_name>.frontend.auth.forward.tls.insecureSkipVerify=true`          | Same as `traefik.frontend.auth.forward.tls.insecureSkipVerify`          |
-| `traefik.<segment_name>.frontend.auth.forward.tls.key=/path/server.key`             | Same as `traefik.frontend.auth.forward.tls.key`                         |
-| `traefik.<segment_name>.frontend.auth.forward.trustForwardHeader=true`              | Same as `traefik.frontend.auth.forward.trustForwardHeader`              |
-| `traefik.<segment_name>.frontend.auth.headerField=X-WebAuth-User`                   | Same as `traefik.frontend.auth.headerField`                             |
-| `traefik.<segment_name>.frontend.auth.removeHeader=true`                            | Same as `traefik.frontend.auth.removeHeader`                            |
-| `traefik.<segment_name>.frontend.entryPoints=https`                                 | Same as `traefik.frontend.entryPoints`                                  |
-| `traefik.<segment_name>.frontend.errors.<name>.backend=NAME`                        | Same as `traefik.frontend.errors.<name>.backend`                        |
-| `traefik.<segment_name>.frontend.errors.<name>.query=PATH`                          | Same as `traefik.frontend.errors.<name>.query`                          |
-| `traefik.<segment_name>.frontend.errors.<name>.status=RANGE`                        | Same as `traefik.frontend.errors.<name>.status`                         |
-| `traefik.<segment_name>.frontend.passHostHeader=true`                               | Same as `traefik.frontend.passHostHeader`                               |
-| `traefik.<segment_name>.frontend.passTLSClientCert.infos.notAfter=true`             | Same as `traefik.frontend.passTLSClientCert.infos.notAfter`             |
-| `traefik.<segment_name>.frontend.passTLSClientCert.infos.notBefore=true`            | Same as `traefik.frontend.passTLSClientCert.infos.notBefore`            |
-| `traefik.<segment_name>.frontend.passTLSClientCert.infos.sans=true`                 | Same as `traefik.frontend.passTLSClientCert.infos.sans`                 |
-| `traefik.<segment_name>.frontend.passTLSClientCert.infos.subject.commonName=true`   | Same as `traefik.frontend.passTLSClientCert.infos.subject.commonName`   |
-| `traefik.<segment_name>.frontend.passTLSClientCert.infos.subject.country=true`      | Same as `traefik.frontend.passTLSClientCert.infos.subject.country`      |
-| `traefik.<segment_name>.frontend.passTLSClientCert.infos.subject.locality=true`     | Same as `traefik.frontend.passTLSClientCert.infos.subject.locality`     |
-| `traefik.<segment_name>.frontend.passTLSClientCert.infos.subject.organization=true` | Same as `traefik.frontend.passTLSClientCert.infos.subject.organization` |
-| `traefik.<segment_name>.frontend.passTLSClientCert.infos.subject.province=true`     | Same as `traefik.frontend.passTLSClientCert.infos.subject.province`     |
-| `traefik.<segment_name>.frontend.passTLSClientCert.infos.subject.serialNumber=true` | Same as `traefik.frontend.passTLSClientCert.infos.subject.serialNumber` |
-| `traefik.<segment_name>.frontend.passTLSClientCert.pem=true`                        | Same as `traefik.frontend.passTLSClientCert.infos.pem`                  |
-| `traefik.<segment_name>.frontend.passTLSCert=true`                                  | Same as `traefik.frontend.passTLSCert`                                  |
-| `traefik.<segment_name>.frontend.priority=10`                                       | Same as `traefik.frontend.priority`                                     |
-| `traefik.<segment_name>.frontend.rateLimit.extractorFunc=EXP`                       | Same as `traefik.frontend.rateLimit.extractorFunc`                      |
-| `traefik.<segment_name>.frontend.rateLimit.rateSet.<name>.period=6`                 | Same as `traefik.frontend.rateLimit.rateSet.<name>.period`              |
-| `traefik.<segment_name>.frontend.rateLimit.rateSet.<name>.average=6`                | Same as `traefik.frontend.rateLimit.rateSet.<name>.average`             |
-| `traefik.<segment_name>.frontend.rateLimit.rateSet.<name>.burst=6`                  | Same as `traefik.frontend.rateLimit.rateSet.<name>.burst`               |
-| `traefik.<segment_name>.frontend.redirect.entryPoint=https`                         | Same as `traefik.frontend.redirect.entryPoint`                          |
-| `traefik.<segment_name>.frontend.redirect.regex=^http://localhost/(.*)`             | Same as `traefik.frontend.redirect.regex`                               |
-| `traefik.<segment_name>.frontend.redirect.replacement=http://mydomain/$1`           | Same as `traefik.frontend.redirect.replacement`                         |
-| `traefik.<segment_name>.frontend.redirect.permanent=true`                           | Same as `traefik.frontend.redirect.permanent`                           |
-| `traefik.<segment_name>.frontend.rule=EXP`                                          | Same as `traefik.frontend.rule`                                         |
-| `traefik.<segment_name>.frontend.whiteList.sourceRange=RANGE`                       | Same as `traefik.frontend.whiteList.sourceRange`                        |
-| `traefik.<segment_name>.frontend.whiteList.useXForwardedFor=true`                   | Same as `traefik.frontend.whiteList.useXForwardedFor`                   |
+| Label                                                                                  | Description                                                                |
+|----------------------------------------------------------------------------------------|----------------------------------------------------------------------------|
+| `traefik.<segment_name>.backend=BACKEND`                                               | Same as `traefik.backend`                                                  |
+| `traefik.<segment_name>.domain=DOMAIN`                                                 | Same as `traefik.domain`                                                   |
+| `traefik.<segment_name>.port=PORT`                                                     | Same as `traefik.port`                                                     |
+| `traefik.<segment_name>.protocol=http`                                                 | Same as `traefik.protocol`                                                 |
+| `traefik.<segment_name>.weight=10`                                                     | Same as `traefik.weight`                                                   |
+| `traefik.<segment_name>.frontend.auth.basic=EXPR`                                      | Same as `traefik.frontend.auth.basic`                                      |
+| `traefik.<segment_name>.frontend.auth.basic.removeHeader=true`                         | Same as `traefik.frontend.auth.basic.removeHeader`                         |
+| `traefik.<segment_name>.frontend.auth.basic.users=EXPR`                                | Same as `traefik.frontend.auth.basic.users`                                |
+| `traefik.<segment_name>.frontend.auth.basic.usersFile=/path/.htpasswd`                 | Same as `traefik.frontend.auth.basic.usersFile`                            |
+| `traefik.<segment_name>.frontend.auth.digest.removeHeader=true`                        | Same as `traefik.frontend.auth.digest.removeHeader`                        |
+| `traefik.<segment_name>.frontend.auth.digest.users=EXPR`                               | Same as `traefik.frontend.auth.digest.users`                               |
+| `traefik.<segment_name>.frontend.auth.digest.usersFile=/path/.htdigest`                | Same as `traefik.frontend.auth.digest.usersFile`                           |
+| `traefik.<segment_name>.frontend.auth.forward.address=https://example.com`             | Same as `traefik.frontend.auth.forward.address`                            |
+| `traefik.<segment_name>.frontend.auth.forward.authResponseHeaders=EXPR`                | Same as `traefik.frontend.auth.forward.authResponseHeaders`                |
+| `traefik.<segment_name>.frontend.auth.forward.tls.ca=/path/ca.pem`                     | Same as `traefik.frontend.auth.forward.tls.ca`                             |
+| `traefik.<segment_name>.frontend.auth.forward.tls.caOptional=true`                     | Same as `traefik.frontend.auth.forward.tls.caOptional`                     |
+| `traefik.<segment_name>.frontend.auth.forward.tls.cert=/path/server.pem`               | Same as `traefik.frontend.auth.forward.tls.cert`                           |
+| `traefik.<segment_name>.frontend.auth.forward.tls.insecureSkipVerify=true`             | Same as `traefik.frontend.auth.forward.tls.insecureSkipVerify`             |
+| `traefik.<segment_name>.frontend.auth.forward.tls.key=/path/server.key`                | Same as `traefik.frontend.auth.forward.tls.key`                            |
+| `traefik.<segment_name>.frontend.auth.forward.trustForwardHeader=true`                 | Same as `traefik.frontend.auth.forward.trustForwardHeader`                 |
+| `traefik.<segment_name>.frontend.auth.headerField=X-WebAuth-User`                      | Same as `traefik.frontend.auth.headerField`                                |
+| `traefik.<segment_name>.frontend.auth.removeHeader=true`                               | Same as `traefik.frontend.auth.removeHeader`                               |
+| `traefik.<segment_name>.frontend.entryPoints=https`                                    | Same as `traefik.frontend.entryPoints`                                     |
+| `traefik.<segment_name>.frontend.errors.<name>.backend=NAME`                           | Same as `traefik.frontend.errors.<name>.backend`                           |
+| `traefik.<segment_name>.frontend.errors.<name>.query=PATH`                             | Same as `traefik.frontend.errors.<name>.query`                             |
+| `traefik.<segment_name>.frontend.errors.<name>.status=RANGE`                           | Same as `traefik.frontend.errors.<name>.status`                            |
+| `traefik.<segment_name>.frontend.passHostHeader=true`                                  | Same as `traefik.frontend.passHostHeader`                                  |
+| `traefik.<segment_name>.frontend.passTLSClientCert.infos.issuer.commonName=true`       | Same as `traefik.frontend.passTLSClientCert.infos.issuer.commonName`       |
+| `traefik.<segment_name>.frontend.passTLSClientCert.infos.issuer.country=true`          | Same as `traefik.frontend.passTLSClientCert.infos.issuer.country`          |
+| `traefik.<segment_name>.frontend.passTLSClientCert.infos.issuer.domainComponent=true`  | Same as `traefik.frontend.passTLSClientCert.infos.issuer.domainComponent`  |
+| `traefik.<segment_name>.frontend.passTLSClientCert.infos.issuer.locality=true`         | Same as `traefik.frontend.passTLSClientCert.infos.issuer.locality`         |
+| `traefik.<segment_name>.frontend.passTLSClientCert.infos.issuer.organization=true`     | Same as `traefik.frontend.passTLSClientCert.infos.issuer.organization`     |
+| `traefik.<segment_name>.frontend.passTLSClientCert.infos.issuer.province=true`         | Same as `traefik.frontend.passTLSClientCert.infos.issuer.province`         |
+| `traefik.<segment_name>.frontend.passTLSClientCert.infos.issuer.serialNumber=true`     | Same as `traefik.frontend.passTLSClientCert.infos.issuer.serialNumber`     |
+| `traefik.<segment_name>.frontend.passTLSClientCert.infos.notAfter=true`                | Same as `traefik.frontend.passTLSClientCert.infos.notAfter`                |
+| `traefik.<segment_name>.frontend.passTLSClientCert.infos.notBefore=true`               | Same as `traefik.frontend.passTLSClientCert.infos.notBefore`               |
+| `traefik.<segment_name>.frontend.passTLSClientCert.infos.sans=true`                    | Same as `traefik.frontend.passTLSClientCert.infos.sans`                    |
+| `traefik.<segment_name>.frontend.passTLSClientCert.infos.subject.commonName=true`      | Same as `traefik.frontend.passTLSClientCert.infos.subject.commonName`      |
+| `traefik.<segment_name>.frontend.passTLSClientCert.infos.subject.country=true`         | Same as `traefik.frontend.passTLSClientCert.infos.subject.country`         |
+| `traefik.<segment_name>.frontend.passTLSClientCert.infos.subject.domainComponent=true` | Same as `traefik.frontend.passTLSClientCert.infos.subject.domainComponent` |
+| `traefik.<segment_name>.frontend.passTLSClientCert.infos.subject.locality=true`        | Same as `traefik.frontend.passTLSClientCert.infos.subject.locality`        |
+| `traefik.<segment_name>.frontend.passTLSClientCert.infos.subject.organization=true`    | Same as `traefik.frontend.passTLSClientCert.infos.subject.organization`    |
+| `traefik.<segment_name>.frontend.passTLSClientCert.infos.subject.province=true`        | Same as `traefik.frontend.passTLSClientCert.infos.subject.province`        |
+| `traefik.<segment_name>.frontend.passTLSClientCert.infos.subject.serialNumber=true`    | Same as `traefik.frontend.passTLSClientCert.infos.subject.serialNumber`    |
+| `traefik.<segment_name>.frontend.passTLSClientCert.pem=true`                           | Same as `traefik.frontend.passTLSClientCert.infos.pem`                     |
+| `traefik.<segment_name>.frontend.passTLSCert=true`                                     | Same as `traefik.frontend.passTLSCert`                                     |
+| `traefik.<segment_name>.frontend.priority=10`                                          | Same as `traefik.frontend.priority`                                        |
+| `traefik.<segment_name>.frontend.rateLimit.extractorFunc=EXP`                          | Same as `traefik.frontend.rateLimit.extractorFunc`                         |
+| `traefik.<segment_name>.frontend.rateLimit.rateSet.<name>.period=6`                    | Same as `traefik.frontend.rateLimit.rateSet.<name>.period`                 |
+| `traefik.<segment_name>.frontend.rateLimit.rateSet.<name>.average=6`                   | Same as `traefik.frontend.rateLimit.rateSet.<name>.average`                |
+| `traefik.<segment_name>.frontend.rateLimit.rateSet.<name>.burst=6`                     | Same as `traefik.frontend.rateLimit.rateSet.<name>.burst`                  |
+| `traefik.<segment_name>.frontend.redirect.entryPoint=https`                            | Same as `traefik.frontend.redirect.entryPoint`                             |
+| `traefik.<segment_name>.frontend.redirect.regex=^http://localhost/(.*)`                | Same as `traefik.frontend.redirect.regex`                                  |
+| `traefik.<segment_name>.frontend.redirect.replacement=http://mydomain/$1`              | Same as `traefik.frontend.redirect.replacement`                            |
+| `traefik.<segment_name>.frontend.redirect.permanent=true`                              | Same as `traefik.frontend.redirect.permanent`                              |
+| `traefik.<segment_name>.frontend.rule=EXP`                                             | Same as `traefik.frontend.rule`                                            |
+| `traefik.<segment_name>.frontend.whiteList.sourceRange=RANGE`                          | Same as `traefik.frontend.whiteList.sourceRange`                           |
+| `traefik.<segment_name>.frontend.whiteList.useXForwardedFor=true`                      | Same as `traefik.frontend.whiteList.useXForwardedFor`                      |
 
 #### Custom Headers
 

docs/configuration/backends/file.md

@@ -64,16 +64,21 @@ Traefik can be configured with a file.
       "test2:$apr1$d9hr9HBB$4HxwgUir3HP4EsggP/QNo0",
     ]
     [frontends.frontend1.passTLSClientCert]
-        # Pass the escaped pem in a `X-Forwarded-Ssl-Client-Cert` header
         pem = true
-        # Pass the escaped client cert infos selected below in a `X-Forwarded-Ssl-Client-Cert-Infos` header
-        # The unescaped header is like `Subject="C=%s,ST=%s,L=%s,O=%s,CN=%s",NB=%d,NA=%d,SAN=%s`
-        # It there is more than one certificates, their are separated by a `;`
-        [frontends.frontend-server.passTLSClientCert.infos]
+        [frontends.frontend1.passTLSClientCert.infos]
             notBefore = true
             notAfter = true
-            [frontends.frontend-server.passTLSClientCert.infos.subject]
+            [frontends.frontend1.passTLSClientCert.infos.subject]
                 country = true
+                domainComponent = true
+                province = true
+                locality = true
+                organization = true
+                commonName = true
+                serialNumber = true
+            [frontends.frontend1.passTLSClientCert.infos.issuer]
+                country = true
+                domainComponent = true
                 province = true
                 locality = true
                 organization = true

docs/configuration/backends/kubernetes.md

@@ -73,6 +73,14 @@ See also [Kubernetes user guide](/user-guide/kubernetes).
 #
 # enablePassTLSCert = true
 
+# Throttle how frequently we refresh our configuration from Ingresses when there
+# are frequent changes.
+#
+# Optional
+# Default: 0 (no throttling)
+#
+# throttleDuration = 10s
+
 # Override default configuration template.
 #
 # Optional
@@ -128,10 +136,11 @@ This will give more flexibility in cloud/dynamic environments.
 Traefik automatically requests endpoint information based on the service provided in the ingress spec.
 Although traefik will connect directly to the endpoints (pods), it still checks the service port to see if TLS communication is required.
 
-There are 2 ways to configure Traefik to use https to communicate with backend pods:
+There are 3 ways to configure Traefik to use https to communicate with backend pods:
 
 1. If the service port defined in the ingress spec is 443 (note that you can still use `targetPort` to use a different port on your pod).
 2. If the service port defined in the ingress spec has a name that starts with `https` (such as `https-api`, `https-web` or just `https`).
+3. If the ingress spec includes the annotation `ingress.kubernetes.io/protocol: https`.
 
 If either of those configuration options exist, then the backend communication protocol is assumed to be TLS, and will connect via TLS automatically.
 
@@ -166,7 +175,7 @@ The following general annotations are applicable on the Ingress object:
 | `traefik.ingress.kubernetes.io/service-weights: <YML>`                          | Set ingress backend weights specified as percentage or decimal numbers in YAML. (6)                                                                                                        |
 | `traefik.ingress.kubernetes.io/whitelist-source-range: "1.2.3.0/24, fe80::/16"` | A comma-separated list of IP ranges permitted for access (7).                                                                                                                              |
 | `ingress.kubernetes.io/whitelist-x-forwarded-for: "true"`                       | Use `X-Forwarded-For` header as valid source of IP for the white list.                                                                                                                     |
-| `ingress.kubernetes.io/protocol: <NAME>`                                        | Set the protocol Traefik will use to communicate with pods.                                                                                                                                |
+| `ingress.kubernetes.io/protocol:<NAME>`                                | Set the protocol Traefik will use to communicate with pods. Acceptable protocols: http,https,h2c                                                                                                                        |
 
 <1> `traefik.ingress.kubernetes.io/app-root`:
 Non-root paths will not be affected by this annotation and handled normally.
@@ -209,7 +218,7 @@ infos:
     serialnumber: true
 ```
 
-If `pem` is set, it will add a `X-Forwarded-Tls-Client-Cert` header that contains the escaped pem as value.  
+If `pem` is set, it will add a `X-Forwarded-Tls-Client-Cert` header that contains the escaped pem as value.
 If at least one flag of the `infos` part is set, it will add a `X-Forwarded-Tls-Client-Cert-Infos` header that contains an escaped string composed of the client certificate data selected by the infos flags.
 This infos part is composed like the following example (not escaped):
 ```Subject="C=FR,ST=SomeState,L=Lyon,O=Cheese,CN=*.cheese.org",NB=1531900816,NA=1563436816,SAN=*.cheese.org,*.cheese.net,cheese.in,test@cheese.org,test@cheese.net,10.0.1.0,10.0.1.2```
@@ -230,7 +239,7 @@ rateset:
 ```
 
 <5> `traefik.ingress.kubernetes.io/rule-type`
-Note: `ReplacePath` is deprecated in this annotation, use the `traefik.ingress.kubernetes.io/request-modifier` annotation instead. Default: `PathPrefix`. 
+Note: `ReplacePath` is deprecated in this annotation, use the `traefik.ingress.kubernetes.io/request-modifier` annotation instead. Default: `PathPrefix`.
 
 <6> `traefik.ingress.kubernetes.io/service-weights`:
 Service weights enable to split traffic across multiple backing services in a fine-grained manner.
@@ -316,7 +325,7 @@ The following security annotations are applicable on the Ingress object:
 | `ingress.kubernetes.io/custom-browser-xss-value: VALUE`   | Set custom value for X-XSS-Protection header. This overrides the BrowserXssFilter option.                                                                                                           |
 | `ingress.kubernetes.io/custom-frame-options-value: VALUE` | Overrides the `X-Frame-Options` header with the custom value.                                                                                                                                       |
 | `ingress.kubernetes.io/force-hsts: "false"`               | Adds the STS  header to non-SSL requests.                                                                                                                                                           |
-| `ingress.kubernetes.io/frame-deny: "false"`               | Adds the `X-Frame-Options` header with the value of `DENY`.                                                                                                                                         |
+| `ingress.kubernetes.io/frame-deny: "true"`                | Adds the `X-Frame-Options` header with the value of `DENY`.                                                                                                                                         |
 | `ingress.kubernetes.io/hsts-max-age: "315360000"`         | Sets the max-age of the HSTS header.                                                                                                                                                                |
 | `ingress.kubernetes.io/hsts-include-subdomains: "true"`   | Adds the IncludeSubdomains section of the STS  header.                                                                                                                                              |
 | `ingress.kubernetes.io/hsts-preload: "true"`              | Adds the preload flag to the HSTS  header.                                                                                                                                                          |

docs/configuration/backends/marathon.md

@@ -193,79 +193,87 @@ They may be specified on one of two levels: Application or service.
 
 The following labels can be defined on Marathon applications. They adjust the behavior for the entire application.
 
-| Label                                                               | Description                                                                                                                                                                                                                   |
-|---------------------------------------------------------------------|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
-| `traefik.domain`                                                    | Sets the default base domain used for the frontend rules.                                                                                                                                                                          |
-| `traefik.enable=false`                                              | Disables this container in Traefik.                                                                                                                                                                                            |
-| `traefik.port=80`                                                   | Registers this port. Useful when the container exposes multiples ports.                                                                                                                                                       |
-| `traefik.portIndex=1`                                               | Registers port by index in the application's ports array. Useful when the application exposes multiple ports.                                                                                                                 |
-| `traefik.protocol=https`                                            | Overrides the default `http` protocol.                                                                                                                                                                                        |
-| `traefik.weight=10`                                                 | Assigns this weight to the container.                                                                                                                                                                                         |
-| `traefik.backend=foo`                                               | Gives the name `foo` to the generated backend for this container.                                                                                                                                                             |
-| `traefik.backend.buffering.maxRequestBodyBytes=0`                   | See [buffering](/configuration/commons/#buffering) section.                                                                                                                                                                   |
-| `traefik.backend.buffering.maxResponseBodyBytes=0`                  | See [buffering](/configuration/commons/#buffering) section.                                                                                                                                                                   |
-| `traefik.backend.buffering.memRequestBodyBytes=0`                   | See [buffering](/configuration/commons/#buffering) section.                                                                                                                                                                   |
-| `traefik.backend.buffering.memResponseBodyBytes=0`                  | See [buffering](/configuration/commons/#buffering) section.                                                                                                                                                                   |
-| `traefik.backend.buffering.retryExpression=EXPR`                    | See [buffering](/configuration/commons/#buffering) section.                                                                                                                                                                   |
-| `traefik.backend.circuitbreaker.expression=EXPR`                    | Creates a [circuit breaker](/basics/#backends) to be used against the backend                                                                                                                                                 |
-| `traefik.backend.responseForwarding.flushInterval=10ms`             | Defines the interval between two flushes when forwarding response from backend to client.                                                                                                                                     |
-| `traefik.backend.healthcheck.path=/health`                          | Enables health check for the backend, hitting the container at `path`.                                                                                                                                                        |
-| `traefik.backend.healthcheck.interval=1s`                           | Defines the health check interval. (Default: 30s)                                                                                                                                                                             |
-| `traefik.backend.healthcheck.port=8080`                             | Sets a different port for the health check.                                                                                                                                                                                   |
-| `traefik.backend.healthcheck.scheme=http`                           | Overrides the server URL scheme.                                                                                                                                                                                              |
-| `traefik.backend.healthcheck.hostname=foobar.com`                   | Defines the health check hostname.                                                                                                                                                                                            |
-| `traefik.backend.healthcheck.headers=EXPR`                          | Defines the health check request headers <br>Format:  <code>HEADER:value&vert;&vert;HEADER2:value2</code>                                                                                                                     |
-| `traefik.backend.loadbalancer.method=drr`                           | Overrides the default `wrr` load balancer algorithm                                                                                                                                                                           |
-| `traefik.backend.loadbalancer.stickiness=true`                      | Enables backend sticky sessions                                                                                                                                                                                               |
-| `traefik.backend.loadbalancer.stickiness.cookieName=NAME`           | Sets the cookie name manually for sticky sessions                                                                                                                                                                             |
-| `traefik.backend.loadbalancer.sticky=true`                          | Enables backend sticky sessions (DEPRECATED)                                                                                                                                                                                  |
-| `traefik.backend.maxconn.amount=10`                                 | Sets a maximum number of connections to the backend.<br>Must be used in conjunction with the below label to take effect.                                                                                                      |
-| `traefik.backend.maxconn.extractorfunc=client.ip`                   | Sets the function to be used against the request to determine what to limit maximum connections to the backend by.<br>Must be used in conjunction with the above label to take effect.                                        |
-| `traefik.frontend.auth.basic=EXPR`                                  | Sets basic authentication to this frontend in CSV format: `User:Hash,User:Hash` (DEPRECATED).                                                                                                                                 |
-| `traefik.frontend.auth.basic.removeHeader=true`                     | If set to `true`, removes the `Authorization` header.                                                                                                                                                                         |
-| `traefik.frontend.auth.basic.users=EXPR`                            | Sets basic authentication to this frontend in CSV format: `User:Hash,User:Hash`.                                                                                                                                              |
-| `traefik.frontend.auth.basic.usersFile=/path/.htpasswd`             | Sets basic authentication with an external file; if users and usersFile are provided, both are merged, with external file contents having precedence.                                                                         |
-| `traefik.frontend.auth.digest.removeHeader=true`                    | If set to `true`, removes the `Authorization` header.                                                                                                                                                                         |
-| `traefik.frontend.auth.digest.users=EXPR`                           | Sets digest authentication to this frontend in CSV format: `User:Realm:Hash,User:Realm:Hash`.                                                                                                                                 |
-| `traefik.frontend.auth.digest.usersFile=/path/.htdigest`            | Sets digest authentication with an external file; if users and usersFile are provided, both are merged, with external file contents having precedence.                                                                        |
-| `traefik.frontend.auth.forward.address=https://example.com`         | Sets the URL of the authentication server.                                                                                                                                                                                    |
-| `traefik.frontend.auth.forward.authResponseHeaders=EXPR`            | Sets the forward authentication authResponseHeaders in CSV format: `X-Auth-User,X-Auth-Header`                                                                                                                                |
-| `traefik.frontend.auth.forward.tls.ca=/path/ca.pem`                 | Sets the Certificate Authority (CA) for the TLS connection with the authentication server.                                                                                                                                    |
-| `traefik.frontend.auth.forward.tls.caOptional=true`                 | Checks the certificates if present but do not force to be signed by a specified Certificate Authority (CA).                                                                                                                   |
-| `traefik.frontend.auth.forward.tls.cert=/path/server.pem`           | Sets the Certificate for the TLS connection with the authentication server.                                                                                                                                                   |
-| `traefik.frontend.auth.forward.tls.insecureSkipVerify=true`         | If set to true invalid SSL certificates are accepted.                                                                                                                                                                         |
-| `traefik.frontend.auth.forward.tls.key=/path/server.key`            | Sets the Certificate for the TLS connection with the authentication server.                                                                                                                                                   |
-| `traefik.frontend.auth.forward.trustForwardHeader=true`             | Trusts X-Forwarded-* headers.                                                                                                                                                                                                 |
-| `traefik.frontend.auth.headerField=X-WebAuth-User`                  | Sets the header used to pass the authenticated user to the application.                                                                                                                                                       |
-| `traefik.frontend.auth.removeHeader=true`                           | If set to true, removes the Authorization header.                                                                                                                                                                             |
-| `traefik.frontend.entryPoints=http,https`                           | Assigns this frontend to entry points `http` and `https`.<br>Overrides `defaultEntryPoints`                                                                                                                                   |
-| `traefik.frontend.errors.<name>.backend=NAME`                       | See [custom error pages](/configuration/commons/#custom-error-pages) section.                                                                                                                                                 |
-| `traefik.frontend.errors.<name>.query=PATH`                         | See [custom error pages](/configuration/commons/#custom-error-pages) section.                                                                                                                                                 |
-| `traefik.frontend.errors.<name>.status=RANGE`                       | See [custom error pages](/configuration/commons/#custom-error-pages) section.                                                                                                                                                 |
-| `traefik.frontend.passHostHeader=true`                              | Forwards client `Host` header to the backend.                                                                                                                                                                                 |
-| `traefik.frontend.passTLSClientCert.infos.notAfter=true`            | Add the noAfter field in a escaped client infos in the `X-Forwarded-Ssl-Client-Cert-Infos` header.                                                                                                                            |
-| `traefik.frontend.passTLSClientCert.infos.notBefore=true`           | Add the noBefore field in a escaped client infos in the `X-Forwarded-Ssl-Client-Cert-Infos` header.                                                                                                                           |
-| `traefik.frontend.passTLSClientCert.infos.sans=true`                | Add the sans field in a escaped client infos in the `X-Forwarded-Ssl-Client-Cert-Infos` header.                                                                                                                               |
-| `traefik.frontend.passTLSClientCert.infos.subject.commonName=true`  | Add the subject.commonName field in a escaped client infos in the `X-Forwarded-Ssl-Client-Cert-Infos` header.                                                                                                                 |
-| `traefik.frontend.passTLSClientCert.infos.subject.country=true`     | Add the subject.country field in a escaped client infos in the `X-Forwarded-Ssl-Client-Cert-Infos` header.                                                                                                                    |
-| `traefik.frontend.passTLSClientCert.infos.subject.locality=true`    | Add the subject.locality field in a escaped client infos in the `X-Forwarded-Ssl-Client-Cert-Infos` header.                                                                                                                   |
-| `traefik.frontend.passTLSClientCert.infos.subject.organization=true`| Add the subject.organization field in a escaped client infos in the `X-Forwarded-Ssl-Client-Cert-Infos` header.                                                                                                               |
-| `traefik.frontend.passTLSClientCert.infos.subject.province=true`    | Add the subject.province field in a escaped client infos in the `X-Forwarded-Ssl-Client-Cert-Infos` header.                                                                                                                   |
-| `traefik.frontend.passTLSClientCert.infos.subject.serialNumber=true`| Add the subject.serialNumber field in a escaped client infos in the `X-Forwarded-Ssl-Client-Cert-Infos` header.                                                                                                               |
-| `traefik.frontend.passTLSClientCert.pem=true`                       | Pass the escaped pem in the `X-Forwarded-Ssl-Client-Cert` header.                                                                                                                                                             |
-| `traefik.frontend.passTLSCert=true`                                 | Forwards TLS Client certificates to the backend.                                                                                                                                                                              |
-| `traefik.frontend.priority=10`                                      | Overrides default frontend priority                                                                                                                                                                                           |
-| `traefik.frontend.rateLimit.extractorFunc=EXP`                      | See [rate limiting](/configuration/commons/#rate-limiting) section.                                                                                                                                                           |
-| `traefik.frontend.rateLimit.rateSet.<name>.period=6`                | See [rate limiting](/configuration/commons/#rate-limiting) section.                                                                                                                                                           |
-| `traefik.frontend.rateLimit.rateSet.<name>.average=6`               | See [rate limiting](/configuration/commons/#rate-limiting) section.                                                                                                                                                           |
-| `traefik.frontend.rateLimit.rateSet.<name>.burst=6`                 | See [rate limiting](/configuration/commons/#rate-limiting) section.                                                                                                                                                           |
-| `traefik.frontend.redirect.entryPoint=https`                        | Enables Redirect to another entryPoint to this frontend (e.g. HTTPS)                                                                                                                                                          |
-| `traefik.frontend.redirect.regex=^http://localhost/(.*)`            | Redirects to another URL to this frontend.<br>Must be set with `traefik.frontend.redirect.replacement`.                                                                                                                       |
-| `traefik.frontend.redirect.replacement=http://mydomain/$1`          | Redirects to another URL to this frontend.<br>Must be set with `traefik.frontend.redirect.regex`.                                                                                                                             |
-| `traefik.frontend.redirect.permanent=true`                          | Returns 301 instead of 302.                                                                                                                                                                                                   |
-| `traefik.frontend.rule=EXPR`                                        | Overrides the default frontend rule. Default: `Host:{sub_domain}.{domain}`.                                                                                                                                                   |
-| `traefik.frontend.whiteList.sourceRange=RANGE`                      | Sets a list of IP-Ranges which are allowed to access.<br>An unset or empty list allows all Source-IPs to access. If one of the Net-Specifications are invalid, the whole list is invalid and allows all Source-IPs to access. |
-| `traefik.frontend.whiteList.useXForwardedFor=true`                  | Uses `X-Forwarded-For` header as valid source of IP for the white list.                                                                                                                                                       |
+| Label                                                                   | Description                                                                                                                                                                                                                   |
+|-------------------------------------------------------------------------|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
+| `traefik.domain`                                                        | Sets the default base domain used for the frontend rules.                                                                                                                                                                     |
+| `traefik.enable=false`                                                  | Disables this container in Traefik.                                                                                                                                                                                           |
+| `traefik.port=80`                                                       | Registers this port. Useful when the container exposes multiples ports.                                                                                                                                                       |
+| `traefik.portIndex=1`                                                   | Registers port by index in the application's ports array. Useful when the application exposes multiple ports.                                                                                                                 |
+| `traefik.protocol=https`                                                | Overrides the default `http` protocol.                                                                                                                                                                                        |
+| `traefik.weight=10`                                                     | Assigns this weight to the container.                                                                                                                                                                                         |
+| `traefik.backend=foo`                                                   | Overrides the application name by `foo` in the generated name of the backend.                                                                                                                                                 |
+| `traefik.backend.buffering.maxRequestBodyBytes=0`                       | See [buffering](/configuration/commons/#buffering) section.                                                                                                                                                                   |
+| `traefik.backend.buffering.maxResponseBodyBytes=0`                      | See [buffering](/configuration/commons/#buffering) section.                                                                                                                                                                   |
+| `traefik.backend.buffering.memRequestBodyBytes=0`                       | See [buffering](/configuration/commons/#buffering) section.                                                                                                                                                                   |
+| `traefik.backend.buffering.memResponseBodyBytes=0`                      | See [buffering](/configuration/commons/#buffering) section.                                                                                                                                                                   |
+| `traefik.backend.buffering.retryExpression=EXPR`                        | See [buffering](/configuration/commons/#buffering) section.                                                                                                                                                                   |
+| `traefik.backend.circuitbreaker.expression=EXPR`                        | Creates a [circuit breaker](/basics/#backends) to be used against the backend                                                                                                                                                 |
+| `traefik.backend.responseForwarding.flushInterval=10ms`                 | Defines the interval between two flushes when forwarding response from backend to client.                                                                                                                                     |
+| `traefik.backend.healthcheck.path=/health`                              | Enables health check for the backend, hitting the container at `path`.                                                                                                                                                        |
+| `traefik.backend.healthcheck.interval=1s`                               | Defines the health check interval. (Default: 30s)                                                                                                                                                                             |
+| `traefik.backend.healthcheck.port=8080`                                 | Sets a different port for the health check.                                                                                                                                                                                   |
+| `traefik.backend.healthcheck.scheme=http`                               | Overrides the server URL scheme.                                                                                                                                                                                              |
+| `traefik.backend.healthcheck.hostname=foobar.com`                       | Defines the health check hostname.                                                                                                                                                                                            |
+| `traefik.backend.healthcheck.headers=EXPR`                              | Defines the health check request headers <br>Format:  <code>HEADER:value&vert;&vert;HEADER2:value2</code>                                                                                                                     |
+| `traefik.backend.loadbalancer.method=drr`                               | Overrides the default `wrr` load balancer algorithm                                                                                                                                                                           |
+| `traefik.backend.loadbalancer.stickiness=true`                          | Enables backend sticky sessions                                                                                                                                                                                               |
+| `traefik.backend.loadbalancer.stickiness.cookieName=NAME`               | Sets the cookie name manually for sticky sessions                                                                                                                                                                             |
+| `traefik.backend.loadbalancer.sticky=true`                              | Enables backend sticky sessions (DEPRECATED)                                                                                                                                                                                  |
+| `traefik.backend.maxconn.amount=10`                                     | Sets a maximum number of connections to the backend.<br>Must be used in conjunction with the below label to take effect.                                                                                                      |
+| `traefik.backend.maxconn.extractorfunc=client.ip`                       | Sets the function to be used against the request to determine what to limit maximum connections to the backend by.<br>Must be used in conjunction with the above label to take effect.                                        |
+| `traefik.frontend.auth.basic=EXPR`                                      | Sets basic authentication to this frontend in CSV format: `User:Hash,User:Hash` (DEPRECATED).                                                                                                                                 |
+| `traefik.frontend.auth.basic.removeHeader=true`                         | If set to `true`, removes the `Authorization` header.                                                                                                                                                                         |
+| `traefik.frontend.auth.basic.users=EXPR`                                | Sets basic authentication to this frontend in CSV format: `User:Hash,User:Hash`.                                                                                                                                              |
+| `traefik.frontend.auth.basic.usersFile=/path/.htpasswd`                 | Sets basic authentication with an external file; if users and usersFile are provided, both are merged, with external file contents having precedence.                                                                         |
+| `traefik.frontend.auth.digest.removeHeader=true`                        | If set to `true`, removes the `Authorization` header.                                                                                                                                                                         |
+| `traefik.frontend.auth.digest.users=EXPR`                               | Sets digest authentication to this frontend in CSV format: `User:Realm:Hash,User:Realm:Hash`.                                                                                                                                 |
+| `traefik.frontend.auth.digest.usersFile=/path/.htdigest`                | Sets digest authentication with an external file; if users and usersFile are provided, both are merged, with external file contents having precedence.                                                                        |
+| `traefik.frontend.auth.forward.address=https://example.com`             | Sets the URL of the authentication server.                                                                                                                                                                                    |
+| `traefik.frontend.auth.forward.authResponseHeaders=EXPR`                | Sets the forward authentication authResponseHeaders in CSV format: `X-Auth-User,X-Auth-Header`                                                                                                                                |
+| `traefik.frontend.auth.forward.tls.ca=/path/ca.pem`                     | Sets the Certificate Authority (CA) for the TLS connection with the authentication server.                                                                                                                                    |
+| `traefik.frontend.auth.forward.tls.caOptional=true`                     | Checks the certificates if present but do not force to be signed by a specified Certificate Authority (CA).                                                                                                                   |
+| `traefik.frontend.auth.forward.tls.cert=/path/server.pem`               | Sets the Certificate for the TLS connection with the authentication server.                                                                                                                                                   |
+| `traefik.frontend.auth.forward.tls.insecureSkipVerify=true`             | If set to true invalid SSL certificates are accepted.                                                                                                                                                                         |
+| `traefik.frontend.auth.forward.tls.key=/path/server.key`                | Sets the Certificate for the TLS connection with the authentication server.                                                                                                                                                   |
+| `traefik.frontend.auth.forward.trustForwardHeader=true`                 | Trusts X-Forwarded-* headers.                                                                                                                                                                                                 |
+| `traefik.frontend.auth.headerField=X-WebAuth-User`                      | Sets the header used to pass the authenticated user to the application.                                                                                                                                                       |
+| `traefik.frontend.auth.removeHeader=true`                               | If set to true, removes the Authorization header.                                                                                                                                                                             |
+| `traefik.frontend.entryPoints=http,https`                               | Assigns this frontend to entry points `http` and `https`.<br>Overrides `defaultEntryPoints`                                                                                                                                   |
+| `traefik.frontend.errors.<name>.backend=NAME`                           | See [custom error pages](/configuration/commons/#custom-error-pages) section.                                                                                                                                                 |
+| `traefik.frontend.errors.<name>.query=PATH`                             | See [custom error pages](/configuration/commons/#custom-error-pages) section.                                                                                                                                                 |
+| `traefik.frontend.errors.<name>.status=RANGE`                           | See [custom error pages](/configuration/commons/#custom-error-pages) section.                                                                                                                                                 |
+| `traefik.frontend.passHostHeader=true`                                  | Forwards client `Host` header to the backend.                                                                                                                                                                                 |
+| `traefik.frontend.passTLSClientCert.infos.issuer.commonName=true`       | Add the issuer.commonName field in a escaped client infos in the `X-Forwarded-Ssl-Client-Cert-Infos` header.                                                                                                                  |
+| `traefik.frontend.passTLSClientCert.infos.issuer.country=true`          | Add the issuer.country field in a escaped client infos in the `X-Forwarded-Ssl-Client-Cert-Infos` header.                                                                                                                     |
+| `traefik.frontend.passTLSClientCert.infos.issuer.domainComponent=true`  | Add the issuer.domainComponent field in a escaped client infos in the `X-Forwarded-Ssl-Client-Cert-Infos` header.                                                                                                             |
+| `traefik.frontend.passTLSClientCert.infos.issuer.locality=true`         | Add the issuer.locality field in a escaped client infos in the `X-Forwarded-Ssl-Client-Cert-Infos` header.                                                                                                                    |
+| `traefik.frontend.passTLSClientCert.infos.issuer.organization=true`     | Add the issuer.organization field in a escaped client infos in the `X-Forwarded-Ssl-Client-Cert-Infos` header.                                                                                                                |
+| `traefik.frontend.passTLSClientCert.infos.issuer.province=true`         | Add the issuer.province field in a escaped client infos in the `X-Forwarded-Ssl-Client-Cert-Infos` header.                                                                                                                    |
+| `traefik.frontend.passTLSClientCert.infos.issuer.serialNumber=true`     | Add the issuer.serialNumber field in a escaped client infos in the `X-Forwarded-Ssl-Client-Cert-Infos` header.                                                                                                                |
+| `traefik.frontend.passTLSClientCert.infos.notAfter=true`                | Add the noAfter field in a escaped client infos in the `X-Forwarded-Ssl-Client-Cert-Infos` header.                                                                                                                            |
+| `traefik.frontend.passTLSClientCert.infos.notBefore=true`               | Add the noBefore field in a escaped client infos in the `X-Forwarded-Ssl-Client-Cert-Infos` header.                                                                                                                           |
+| `traefik.frontend.passTLSClientCert.infos.sans=true`                    | Add the sans field in a escaped client infos in the `X-Forwarded-Ssl-Client-Cert-Infos` header.                                                                                                                               |
+| `traefik.frontend.passTLSClientCert.infos.subject.commonName=true`      | Add the subject.commonName field in a escaped client infos in the `X-Forwarded-Ssl-Client-Cert-Infos` header.                                                                                                                 |
+| `traefik.frontend.passTLSClientCert.infos.subject.country=true`         | Add the subject.country field in a escaped client infos in the `X-Forwarded-Ssl-Client-Cert-Infos` header.                                                                                                                    |
+| `traefik.frontend.passTLSClientCert.infos.subject.domainComponent=true` | Add the subject.domainComponent field in a escaped client infos in the `X-Forwarded-Ssl-Client-Cert-Infos` header.                                                                                                            |
+| `traefik.frontend.passTLSClientCert.infos.subject.locality=true`        | Add the subject.locality field in a escaped client infos in the `X-Forwarded-Ssl-Client-Cert-Infos` header.                                                                                                                   |
+| `traefik.frontend.passTLSClientCert.infos.subject.organization=true`    | Add the subject.organization field in a escaped client infos in the `X-Forwarded-Ssl-Client-Cert-Infos` header.                                                                                                               |
+| `traefik.frontend.passTLSClientCert.infos.subject.province=true`        | Add the subject.province field in a escaped client infos in the `X-Forwarded-Ssl-Client-Cert-Infos` header.                                                                                                                   |
+| `traefik.frontend.passTLSClientCert.infos.subject.serialNumber=true`    | Add the subject.serialNumber field in a escaped client infos in the `X-Forwarded-Ssl-Client-Cert-Infos` header.                                                                                                               |
+| `traefik.frontend.passTLSClientCert.pem=true`                           | Pass the escaped pem in the `X-Forwarded-Ssl-Client-Cert` header.                                                                                                                                                             |
+| `traefik.frontend.passTLSCert=true`                                     | Forwards TLS Client certificates to the backend.                                                                                                                                                                              |
+| `traefik.frontend.priority=10`                                          | Overrides default frontend priority                                                                                                                                                                                           |
+| `traefik.frontend.rateLimit.extractorFunc=EXP`                          | See [rate limiting](/configuration/commons/#rate-limiting) section.                                                                                                                                                           |
+| `traefik.frontend.rateLimit.rateSet.<name>.period=6`                    | See [rate limiting](/configuration/commons/#rate-limiting) section.                                                                                                                                                           |
+| `traefik.frontend.rateLimit.rateSet.<name>.average=6`                   | See [rate limiting](/configuration/commons/#rate-limiting) section.                                                                                                                                                           |
+| `traefik.frontend.rateLimit.rateSet.<name>.burst=6`                     | See [rate limiting](/configuration/commons/#rate-limiting) section.                                                                                                                                                           |
+| `traefik.frontend.redirect.entryPoint=https`                            | Enables Redirect to another entryPoint to this frontend (e.g. HTTPS)                                                                                                                                                          |
+| `traefik.frontend.redirect.regex=^http://localhost/(.*)`                | Redirects to another URL to this frontend.<br>Must be set with `traefik.frontend.redirect.replacement`.                                                                                                                       |
+| `traefik.frontend.redirect.replacement=http://mydomain/$1`              | Redirects to another URL to this frontend.<br>Must be set with `traefik.frontend.redirect.regex`.                                                                                                                             |
+| `traefik.frontend.redirect.permanent=true`                              | Returns 301 instead of 302.                                                                                                                                                                                                   |
+| `traefik.frontend.rule=EXPR`                                            | Overrides the default frontend rule. Default: `Host:{sub_domain}.{domain}`.                                                                                                                                                   |
+| `traefik.frontend.whiteList.sourceRange=RANGE`                          | Sets a list of IP-Ranges which are allowed to access.<br>An unset or empty list allows all Source-IPs to access. If one of the Net-Specifications are invalid, the whole list is invalid and allows all Source-IPs to access. |
+| `traefik.frontend.whiteList.useXForwardedFor=true`                      | Uses `X-Forwarded-For` header as valid source of IP for the white list.                                                                                                                                                       |
 
 #### Custom Headers
 
@@ -308,59 +316,67 @@ You can define as many segments as ports exposed in an application.
 
 Segment labels override the default behavior.
 
-| Label                                                                              | Description                                                            |
-|------------------------------------------------------------------------------------|------------------------------------------------------------------------|
-| `traefik.<segment_name>.backend=BACKEND`                                           | Same as `traefik.backend`                                              |
-| `traefik.<segment_name>.domain=DOMAIN`                                             | Same as `traefik.domain`                                               |
-| `traefik.<segment_name>.portIndex=1`                                               | Same as `traefik.portIndex`                                            |
-| `traefik.<segment_name>.port=PORT`                                                 | Same as `traefik.port`                                                 |
-| `traefik.<segment_name>.protocol=http`                                             | Same as `traefik.protocol`                                             |
-| `traefik.<segment_name>.weight=10`                                                 | Same as `traefik.weight`                                               |
-| `traefik.<segment_name>.frontend.auth.basic=EXPR`                                  | Same as `traefik.frontend.auth.basic`                                  |
-| `traefik.<segment_name>.frontend.auth.basic.removeHeader=true`                     | Same as `traefik.frontend.auth.basic.removeHeader`                     |
-| `traefik.<segment_name>.frontend.auth.basic.users=EXPR`                            | Same as `traefik.frontend.auth.basic.users`                            |
-| `traefik.<segment_name>.frontend.auth.basic.usersFile=/path/.htpasswd`             | Same as `traefik.frontend.auth.basic.usersFile`                        |
-| `traefik.<segment_name>.frontend.auth.digest.removeHeader=true`                    | Same as `traefik.frontend.auth.digest.removeHeader`                    |
-| `traefik.<segment_name>.frontend.auth.digest.users=EXPR`                           | Same as `traefik.frontend.auth.digest.users`                           |
-| `traefik.<segment_name>.frontend.auth.digest.usersFile=/path/.htdigest`            | Same as `traefik.frontend.auth.digest.usersFile`                       |
-| `traefik.<segment_name>.frontend.auth.forward.address=https://example.com`         | Same as `traefik.frontend.auth.forward.address`                        |
-| `traefik.<segment_name>.frontend.auth.forward.authResponseHeaders=EXPR`            | Same as `traefik.frontend.auth.forward.authResponseHeaders`            |
-| `traefik.<segment_name>.frontend.auth.forward.tls.ca=/path/ca.pem`                 | Same as `traefik.frontend.auth.forward.tls.ca`                         |
-| `traefik.<segment_name>.frontend.auth.forward.tls.caOptional=true`                 | Same as `traefik.frontend.auth.forward.tls.caOptional`                 |
-| `traefik.<segment_name>.frontend.auth.forward.tls.cert=/path/server.pem`           | Same as `traefik.frontend.auth.forward.tls.cert`                       |
-| `traefik.<segment_name>.frontend.auth.forward.tls.insecureSkipVerify=true`         | Same as `traefik.frontend.auth.forward.tls.insecureSkipVerify`         |
-| `traefik.<segment_name>.frontend.auth.forward.tls.key=/path/server.key`            | Same as `traefik.frontend.auth.forward.tls.key`                        |
-| `traefik.<segment_name>.frontend.auth.forward.trustForwardHeader=true`             | Same as `traefik.frontend.auth.forward.trustForwardHeader`             |
-| `traefik.<segment_name>.frontend.auth.headerField=X-WebAuth-User`                  | Same as `traefik.frontend.auth.headerField`                            |
-| `traefik.<segment_name>.frontend.auth.removeHeader=true`                           | Same as `traefik.frontend.auth.removeHeader`                           |
-| `traefik.<segment_name>.frontend.entryPoints=https`                                | Same as `traefik.frontend.entryPoints`                                 |
-| `traefik.<segment_name>.frontend.errors.<name>.backend=NAME`                       | Same as `traefik.frontend.errors.<name>.backend`                       |
-| `traefik.<segment_name>.frontend.errors.<name>.query=PATH`                         | Same as `traefik.frontend.errors.<name>.query`                         |
-| `traefik.<segment_name>.frontend.errors.<name>.status=RANGE`                       | Same as `traefik.frontend.errors.<name>.status`                        |
-| `traefik.<segment_name>.frontend.passHostHeader=true`                              | Same as `traefik.frontend.passHostHeader`                              |
-| `traefik.<segment_name>.frontend.passTLSClientCert.infos.notAfter=true`            | Same as `traefik.frontend.passTLSClientCert.infos.notAfter`            |
-| `traefik.<segment_name>.frontend.passTLSClientCert.infos.notBefore=true`           | Same as `traefik.frontend.passTLSClientCert.infos.notBefore`           |
-| `traefik.<segment_name>.frontend.passTLSClientCert.infos.sans=true`                | Same as `traefik.frontend.passTLSClientCert.infos.sans`                |
-| `traefik.<segment_name>.frontend.passTLSClientCert.infos.subject.commonName=true`  | Same as `traefik.frontend.passTLSClientCert.infos.subject.commonName`  |
-| `traefik.<segment_name>.frontend.passTLSClientCert.infos.subject.country=true`     | Same as `traefik.frontend.passTLSClientCert.infos.subject.country`     |
-| `traefik.<segment_name>.frontend.passTLSClientCert.infos.subject.locality=true`    | Same as `traefik.frontend.passTLSClientCert.infos.subject.locality`    |
-| `traefik.<segment_name>.frontend.passTLSClientCert.infos.subject.organization=true`| Same as `traefik.frontend.passTLSClientCert.infos.subject.organization`|
-| `traefik.<segment_name>.frontend.passTLSClientCert.infos.subject.province=true`    | Same as `traefik.frontend.passTLSClientCert.infos.subject.province`    |
-| `traefik.<segment_name>.frontend.passTLSClientCert.infos.subject.serialNumber=true`| Same as `traefik.frontend.passTLSClientCert.infos.subject.serialNumber`|
-| `traefik.<segment_name>.frontend.passTLSClientCert.pem=true`                       | Same as `traefik.frontend.passTLSClientCert.infos.pem`                 |
-| `traefik.<segment_name>.frontend.passTLSCert=true`                                 | Same as `traefik.frontend.passTLSCert`                                 |
-| `traefik.<segment_name>.frontend.priority=10`                                      | Same as `traefik.frontend.priority`                                    |
-| `traefik.<segment_name>.frontend.rateLimit.extractorFunc=EXP`                      | Same as `traefik.frontend.rateLimit.extractorFunc`                     |
-| `traefik.<segment_name>.frontend.rateLimit.rateSet.<name>.period=6`                | Same as `traefik.frontend.rateLimit.rateSet.<name>.period`             |
-| `traefik.<segment_name>.frontend.rateLimit.rateSet.<name>.average=6`               | Same as `traefik.frontend.rateLimit.rateSet.<name>.average`            |
-| `traefik.<segment_name>.frontend.rateLimit.rateSet.<name>.burst=6`                 | Same as `traefik.frontend.rateLimit.rateSet.<name>.burst`              |
-| `traefik.<segment_name>.frontend.redirect.entryPoint=https`                        | Same as `traefik.frontend.redirect.entryPoint`                         |
-| `traefik.<segment_name>.frontend.redirect.regex=^http://localhost/(.*)`            | Same as `traefik.frontend.redirect.regex`                              |
-| `traefik.<segment_name>.frontend.redirect.replacement=http://mydomain/$1`          | Same as `traefik.frontend.redirect.replacement`                        |
-| `traefik.<segment_name>.frontend.redirect.permanent=true`                          | Same as `traefik.frontend.redirect.permanent`                          |
-| `traefik.<segment_name>.frontend.rule=EXP`                                         | Same as `traefik.frontend.rule`                                        |
-| `traefik.<segment_name>.frontend.whiteList.sourceRange=RANGE`                      | Same as `traefik.frontend.whiteList.sourceRange`                       |
-| `traefik.<segment_name>.frontend.whiteList.useXForwardedFor=true`                  | Same as `traefik.frontend.whiteList.useXForwardedFor`                  |
+| Label                                                                                  | Description                                                                |
+|----------------------------------------------------------------------------------------|----------------------------------------------------------------------------|
+| `traefik.<segment_name>.backend=BACKEND`                                               | Same as `traefik.backend`                                                  |
+| `traefik.<segment_name>.domain=DOMAIN`                                                 | Same as `traefik.domain`                                                   |
+| `traefik.<segment_name>.portIndex=1`                                                   | Same as `traefik.portIndex`                                                |
+| `traefik.<segment_name>.port=PORT`                                                     | Same as `traefik.port`                                                     |
+| `traefik.<segment_name>.protocol=http`                                                 | Same as `traefik.protocol`                                                 |
+| `traefik.<segment_name>.weight=10`                                                     | Same as `traefik.weight`                                                   |
+| `traefik.<segment_name>.frontend.auth.basic=EXPR`                                      | Same as `traefik.frontend.auth.basic`                                      |
+| `traefik.<segment_name>.frontend.auth.basic.removeHeader=true`                         | Same as `traefik.frontend.auth.basic.removeHeader`                         |
+| `traefik.<segment_name>.frontend.auth.basic.users=EXPR`                                | Same as `traefik.frontend.auth.basic.users`                                |
+| `traefik.<segment_name>.frontend.auth.basic.usersFile=/path/.htpasswd`                 | Same as `traefik.frontend.auth.basic.usersFile`                            |
+| `traefik.<segment_name>.frontend.auth.digest.removeHeader=true`                        | Same as `traefik.frontend.auth.digest.removeHeader`                        |
+| `traefik.<segment_name>.frontend.auth.digest.users=EXPR`                               | Same as `traefik.frontend.auth.digest.users`                               |
+| `traefik.<segment_name>.frontend.auth.digest.usersFile=/path/.htdigest`                | Same as `traefik.frontend.auth.digest.usersFile`                           |
+| `traefik.<segment_name>.frontend.auth.forward.address=https://example.com`             | Same as `traefik.frontend.auth.forward.address`                            |
+| `traefik.<segment_name>.frontend.auth.forward.authResponseHeaders=EXPR`                | Same as `traefik.frontend.auth.forward.authResponseHeaders`                |
+| `traefik.<segment_name>.frontend.auth.forward.tls.ca=/path/ca.pem`                     | Same as `traefik.frontend.auth.forward.tls.ca`                             |
+| `traefik.<segment_name>.frontend.auth.forward.tls.caOptional=true`                     | Same as `traefik.frontend.auth.forward.tls.caOptional`                     |
+| `traefik.<segment_name>.frontend.auth.forward.tls.cert=/path/server.pem`               | Same as `traefik.frontend.auth.forward.tls.cert`                           |
+| `traefik.<segment_name>.frontend.auth.forward.tls.insecureSkipVerify=true`             | Same as `traefik.frontend.auth.forward.tls.insecureSkipVerify`             |
+| `traefik.<segment_name>.frontend.auth.forward.tls.key=/path/server.key`                | Same as `traefik.frontend.auth.forward.tls.key`                            |
+| `traefik.<segment_name>.frontend.auth.forward.trustForwardHeader=true`                 | Same as `traefik.frontend.auth.forward.trustForwardHeader`                 |
+| `traefik.<segment_name>.frontend.auth.headerField=X-WebAuth-User`                      | Same as `traefik.frontend.auth.headerField`                                |
+| `traefik.<segment_name>.frontend.auth.removeHeader=true`                               | Same as `traefik.frontend.auth.removeHeader`                               |
+| `traefik.<segment_name>.frontend.entryPoints=https`                                    | Same as `traefik.frontend.entryPoints`                                     |
+| `traefik.<segment_name>.frontend.errors.<name>.backend=NAME`                           | Same as `traefik.frontend.errors.<name>.backend`                           |
+| `traefik.<segment_name>.frontend.errors.<name>.query=PATH`                             | Same as `traefik.frontend.errors.<name>.query`                             |
+| `traefik.<segment_name>.frontend.errors.<name>.status=RANGE`                           | Same as `traefik.frontend.errors.<name>.status`                            |
+| `traefik.<segment_name>.frontend.passHostHeader=true`                                  | Same as `traefik.frontend.passHostHeader`                                  |
+| `traefik.<segment_name>.frontend.passTLSClientCert.infos.issuer.commonName=true`       | Same as `traefik.frontend.passTLSClientCert.infos.issuer.commonName`       |
+| `traefik.<segment_name>.frontend.passTLSClientCert.infos.issuer.domainComponent=true`  | Same as `traefik.frontend.passTLSClientCert.infos.issuer.domainComponent`  |
+| `traefik.<segment_name>.frontend.passTLSClientCert.infos.issuer.country=true`          | Same as `traefik.frontend.passTLSClientCert.infos.issuer.country`          |
+| `traefik.<segment_name>.frontend.passTLSClientCert.infos.issuer.locality=true`         | Same as `traefik.frontend.passTLSClientCert.infos.issuer.locality`         |
+| `traefik.<segment_name>.frontend.passTLSClientCert.infos.issuer.organization=true`     | Same as `traefik.frontend.passTLSClientCert.infos.issuer.organization`     |
+| `traefik.<segment_name>.frontend.passTLSClientCert.infos.issuer.province=true`         | Same as `traefik.frontend.passTLSClientCert.infos.issuer.province`         |
+| `traefik.<segment_name>.frontend.passTLSClientCert.infos.issuer.serialNumber=true`     | Same as `traefik.frontend.passTLSClientCert.infos.issuer.serialNumber`     |
+| `traefik.<segment_name>.frontend.passTLSClientCert.infos.notAfter=true`                | Same as `traefik.frontend.passTLSClientCert.infos.notAfter`                |
+| `traefik.<segment_name>.frontend.passTLSClientCert.infos.notBefore=true`               | Same as `traefik.frontend.passTLSClientCert.infos.notBefore`               |
+| `traefik.<segment_name>.frontend.passTLSClientCert.infos.sans=true`                    | Same as `traefik.frontend.passTLSClientCert.infos.sans`                    |
+| `traefik.<segment_name>.frontend.passTLSClientCert.infos.subject.commonName=true`      | Same as `traefik.frontend.passTLSClientCert.infos.subject.commonName`      |
+| `traefik.<segment_name>.frontend.passTLSClientCert.infos.subject.domainComponent=true` | Same as `traefik.frontend.passTLSClientCert.infos.subject.domainComponent` |
+| `traefik.<segment_name>.frontend.passTLSClientCert.infos.subject.country=true`         | Same as `traefik.frontend.passTLSClientCert.infos.subject.country`         |
+| `traefik.<segment_name>.frontend.passTLSClientCert.infos.subject.locality=true`        | Same as `traefik.frontend.passTLSClientCert.infos.subject.locality`        |
+| `traefik.<segment_name>.frontend.passTLSClientCert.infos.subject.organization=true`    | Same as `traefik.frontend.passTLSClientCert.infos.subject.organization`    |
+| `traefik.<segment_name>.frontend.passTLSClientCert.infos.subject.province=true`        | Same as `traefik.frontend.passTLSClientCert.infos.subject.province`        |
+| `traefik.<segment_name>.frontend.passTLSClientCert.infos.subject.serialNumber=true`    | Same as `traefik.frontend.passTLSClientCert.infos.subject.serialNumber`    |
+| `traefik.<segment_name>.frontend.passTLSClientCert.pem=true`                           | Same as `traefik.frontend.passTLSClientCert.infos.pem`                     |
+| `traefik.<segment_name>.frontend.passTLSCert=true`                                     | Same as `traefik.frontend.passTLSCert`                                     |
+| `traefik.<segment_name>.frontend.priority=10`                                          | Same as `traefik.frontend.priority`                                        |
+| `traefik.<segment_name>.frontend.rateLimit.extractorFunc=EXP`                          | Same as `traefik.frontend.rateLimit.extractorFunc`                         |
+| `traefik.<segment_name>.frontend.rateLimit.rateSet.<name>.period=6`                    | Same as `traefik.frontend.rateLimit.rateSet.<name>.period`                 |
+| `traefik.<segment_name>.frontend.rateLimit.rateSet.<name>.average=6`                   | Same as `traefik.frontend.rateLimit.rateSet.<name>.average`                |
+| `traefik.<segment_name>.frontend.rateLimit.rateSet.<name>.burst=6`                     | Same as `traefik.frontend.rateLimit.rateSet.<name>.burst`                  |
+| `traefik.<segment_name>.frontend.redirect.entryPoint=https`                            | Same as `traefik.frontend.redirect.entryPoint`                             |
+| `traefik.<segment_name>.frontend.redirect.regex=^http://localhost/(.*)`                | Same as `traefik.frontend.redirect.regex`                                  |
+| `traefik.<segment_name>.frontend.redirect.replacement=http://mydomain/$1`              | Same as `traefik.frontend.redirect.replacement`                            |
+| `traefik.<segment_name>.frontend.redirect.permanent=true`                              | Same as `traefik.frontend.redirect.permanent`                              |
+| `traefik.<segment_name>.frontend.rule=EXP`                                             | Same as `traefik.frontend.rule`                                            |
+| `traefik.<segment_name>.frontend.whiteList.sourceRange=RANGE`                          | Same as `traefik.frontend.whiteList.sourceRange`                           |
+| `traefik.<segment_name>.frontend.whiteList.useXForwardedFor=true`                      | Same as `traefik.frontend.whiteList.useXForwardedFor`                      |
 
 #### Custom Headers
 

docs/configuration/backends/mesos.md

@@ -106,79 +106,87 @@ domain = "mesos.localhost"
 
 The following labels can be defined on Mesos tasks. They adjust the behavior for the entire application.
 
-| Label                                                               | Description                                                                                                                                                                                                                   |
-|---------------------------------------------------------------------|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
-| `traefik.domain`                                                    | Sets the default base domain for the frontend rules.                                                                                                                                                                               |
-| `traefik.enable=false`                                              | Disables this container in Traefik.                                                                                                                                                                                            |
-| `traefik.port=80`                                                   | Registers this port. Useful when the application exposes multiple ports.                                                                                                                                                      |
-| `traefik.portName=web`                                              | Registers port by name in the application's ports array. Useful when the application exposes multiple ports.                                                                                                                  |
-| `traefik.portIndex=1`                                               | Registers port by index in the application's ports array. Useful when the application exposes multiple ports.                                                                                                                 |
-| `traefik.protocol=https`                                            | Overrides the default `http` protocol                                                                                                                                                                                         |
-| `traefik.weight=10`                                                 | Assigns this weight to the container                                                                                                                                                                                          |
-| `traefik.backend=foo`                                               | Gives the name `foo` to the generated backend for this container.                                                                                                                                                             |
-| `traefik.backend.buffering.maxRequestBodyBytes=0`                   | See [buffering](/configuration/commons/#buffering) section.                                                                                                                                                                   |
-| `traefik.backend.buffering.maxResponseBodyBytes=0`                  | See [buffering](/configuration/commons/#buffering) section.                                                                                                                                                                   |
-| `traefik.backend.buffering.memRequestBodyBytes=0`                   | See [buffering](/configuration/commons/#buffering) section.                                                                                                                                                                   |
-| `traefik.backend.buffering.memResponseBodyBytes=0`                  | See [buffering](/configuration/commons/#buffering) section.                                                                                                                                                                   |
-| `traefik.backend.buffering.retryExpression=EXPR`                    | See [buffering](/configuration/commons/#buffering) section.                                                                                                                                                                   |
-| `traefik.backend.circuitbreaker.expression=EXPR`                    | Creates a [circuit breaker](/basics/#backends) to be used against the backend                                                                                                                                                 |
-| `traefik.backend.responseForwarding.flushInterval=10ms`             | Defines the interval between two flushes when forwarding response from backend to client.                                                                                                                                     |
-| `traefik.backend.healthcheck.path=/health`                          | Enables health check for the backend, hitting the container at `path`.                                                                                                                                                        |
-| `traefik.backend.healthcheck.interval=1s`                           | Defines the health check interval. (Default: 30s)                                                                                                                                                                             |
-| `traefik.backend.healthcheck.scheme=http`                           | Overrides the server URL scheme.                                                                                                                                                                                              |
-| `traefik.backend.healthcheck.port=8080`                             | Sets a different port for the health check.                                                                                                                                                                                   |
-| `traefik.backend.healthcheck.hostname=foobar.com`                   | Defines the health check hostname.                                                                                                                                                                                            |
-| `traefik.backend.healthcheck.headers=EXPR`                          | Defines the health check request headers <br>Format:  <code>HEADER:value&vert;&vert;HEADER2:value2</code>                                                                                                                     |
-| `traefik.backend.loadbalancer.method=drr`                           | Overrides the default `wrr` load balancer algorithm                                                                                                                                                                           |
-| `traefik.backend.loadbalancer.stickiness=true`                      | Enables backend sticky sessions                                                                                                                                                                                               |
-| `traefik.backend.loadbalancer.stickiness.cookieName=NAME`           | Sets the cookie manually name for sticky sessions                                                                                                                                                                             |
-| `traefik.backend.maxconn.amount=10`                                 | Sets a maximum number of connections to the backend.<br>Must be used in conjunction with the below label to take effect.                                                                                                      |
-| `traefik.backend.maxconn.extractorfunc=client.ip`                   | Sets the function to be used against the request to determine what to limit maximum connections to the backend by.<br>Must be used in conjunction with the above label to take effect.                                        |
-| `traefik.frontend.auth.basic=EXPR`                                  | Sets basic authentication to this frontend in CSV format: `User:Hash,User:Hash` (DEPRECATED).                                                                                                                                 |
-| `traefik.frontend.auth.basic.users=EXPR`                            | Sets basic authentication to this frontend in CSV format: `User:Hash,User:Hash`.                                                                                                                                              |
-| `traefik.frontend.auth.basic.removeHeader=true`                     | If set to `true`, removes the `Authorization` header.                                                                                                                                                                         |
-| `traefik.frontend.auth.basic.usersFile=/path/.htpasswd`             | Sets basic authentication with an external file; if users and usersFile are provided, both are merged, with external file contents having precedence.                                                                         |
-| `traefik.frontend.auth.digest.removeHeader=true`                    | If set to `true`, removes the `Authorization` header.                                                                                                                                                                         |
-| `traefik.frontend.auth.digest.users=EXPR`                           | Sets digest authentication to this frontend in CSV format: `User:Realm:Hash,User:Realm:Hash`.                                                                                                                                 |
-| `traefik.frontend.auth.digest.usersFile=/path/.htdigest`            | Sets digest authentication with an external file; if users and usersFile are provided, both are merged, with external file contents having precedence.                                                                        |
-| `traefik.frontend.auth.forward.address=https://example.com`         | Sets the URL of the authentication server.                                                                                                                                                                                    |
-| `traefik.frontend.auth.forward.authResponseHeaders=EXPR`            | Sets the forward authentication authResponseHeaders in CSV format: `X-Auth-User,X-Auth-Header`                                                                                                                                |
-| `traefik.frontend.auth.forward.tls.ca=/path/ca.pem`                 | Sets the Certificate Authority (CA) for the TLS connection with the authentication server.                                                                                                                                    |
-| `traefik.frontend.auth.forward.tls.caOptional=true`                 | Checks the certificates if present but do not force to be signed by a specified Certificate Authority (CA).                                                                                                                   |
-| `traefik.frontend.auth.forward.tls.cert=/path/server.pem`           | Sets the Certificate for the TLS connection with the authentication server.                                                                                                                                                   |
-| `traefik.frontend.auth.forward.tls.insecureSkipVerify=true`         | If set to true invalid SSL certificates are accepted.                                                                                                                                                                         |
-| `traefik.frontend.auth.forward.tls.key=/path/server.key`            | Sets the Certificate for the TLS connection with the authentication server.                                                                                                                                                   |
-| `traefik.frontend.auth.forward.trustForwardHeader=true`             | Trusts X-Forwarded-* headers.                                                                                                                                                                                                 |
-| `traefik.frontend.auth.headerField=X-WebAuth-User`                  | Sets the header used to pass the authenticated user to the application.                                                                                                                                                       |
-| `traefik.frontend.auth.removeHeader=true`                           | If set to true, removes the Authorization header.                                                                                                                                                                             |
-| `traefik.frontend.entryPoints=http,https`                           | Assigns this frontend to entry points `http` and `https`.<br>Overrides `defaultEntryPoints`                                                                                                                                   |
-| `traefik.frontend.errors.<name>.backend=NAME`                       | See [custom error pages](/configuration/commons/#custom-error-pages) section.                                                                                                                                                 |
-| `traefik.frontend.errors.<name>.query=PATH`                         | See [custom error pages](/configuration/commons/#custom-error-pages) section.                                                                                                                                                 |
-| `traefik.frontend.errors.<name>.status=RANGE`                       | See [custom error pages](/configuration/commons/#custom-error-pages) section.                                                                                                                                                 |
-| `traefik.frontend.passHostHeader=true`                              | Forwards client `Host` header to the backend.                                                                                                                                                                                 |
-| `traefik.frontend.passTLSClientCert.infos.notAfter=true`            | Add the noAfter field in a escaped client infos in the `X-Forwarded-Ssl-Client-Cert-Infos` header.                                                                                                                            |
-| `traefik.frontend.passTLSClientCert.infos.notBefore=true`           | Add the noBefore field in a escaped client infos in the `X-Forwarded-Ssl-Client-Cert-Infos` header.                                                                                                                           |
-| `traefik.frontend.passTLSClientCert.infos.sans=true`                | Add the sans field in a escaped client infos in the `X-Forwarded-Ssl-Client-Cert-Infos` header.                                                                                                                               |
-| `traefik.frontend.passTLSClientCert.infos.subject.commonName=true`  | Add the subject.commonName field in a escaped client infos in the `X-Forwarded-Ssl-Client-Cert-Infos` header.                                                                                                                 |
-| `traefik.frontend.passTLSClientCert.infos.subject.country=true`     | Add the subject.country field in a escaped client infos in the `X-Forwarded-Ssl-Client-Cert-Infos` header.                                                                                                                    |
-| `traefik.frontend.passTLSClientCert.infos.subject.locality=true`    | Add the subject.locality field in a escaped client infos in the `X-Forwarded-Ssl-Client-Cert-Infos` header.                                                                                                                   |
-| `traefik.frontend.passTLSClientCert.infos.subject.organization=true`| Add the subject.organization field in a escaped client infos in the `X-Forwarded-Ssl-Client-Cert-Infos` header.                                                                                                               |
-| `traefik.frontend.passTLSClientCert.infos.subject.province=true`    | Add the subject.province field in a escaped client infos in the `X-Forwarded-Ssl-Client-Cert-Infos` header.                                                                                                                   |
-| `traefik.frontend.passTLSClientCert.infos.subject.serialNumber=true`| Add the subject.serialNumber field in a escaped client infos in the `X-Forwarded-Ssl-Client-Cert-Infos` header.                                                                                                               |
-| `traefik.frontend.passTLSClientCert.pem=true`                       | Pass the escaped pem in the `X-Forwarded-Ssl-Client-Cert` header.                                                                                                                                                             |
-| `traefik.frontend.passTLSCert=true`                                 | Forwards TLS Client certificates to the backend.                                                                                                                                                                              |
-| `traefik.frontend.priority=10`                                      | Overrides default frontend priority                                                                                                                                                                                           |
-| `traefik.frontend.rateLimit.extractorFunc=EXP`                      | See [rate limiting](/configuration/commons/#rate-limiting) section.                                                                                                                                                           |
-| `traefik.frontend.rateLimit.rateSet.<name>.period=6`                | See [rate limiting](/configuration/commons/#rate-limiting) section.                                                                                                                                                           |
-| `traefik.frontend.rateLimit.rateSet.<name>.average=6`               | See [rate limiting](/configuration/commons/#rate-limiting) section.                                                                                                                                                           |
-| `traefik.frontend.rateLimit.rateSet.<name>.burst=6`                 | See [rate limiting](/configuration/commons/#rate-limiting) section.                                                                                                                                                           |
-| `traefik.frontend.redirect.entryPoint=https`                        | Enables Redirect to another entryPoint to this frontend (e.g. HTTPS)                                                                                                                                                          |
-| `traefik.frontend.redirect.regex=^http://localhost/(.*)`            | Redirects to another URL to this frontend.<br>Must be set with `traefik.frontend.redirect.replacement`.                                                                                                                       |
-| `traefik.frontend.redirect.replacement=http://mydomain/$1`          | Redirects to another URL to this frontend.<br>Must be set with `traefik.frontend.redirect.regex`.                                                                                                                             |
-| `traefik.frontend.redirect.permanent=true`                          | Returns 301 instead of 302.                                                                                                                                                                                                   |
-| `traefik.frontend.rule=EXPR`                                        | Overrides the default frontend rule. Default: `Host:{discovery_name}.{domain}`.                                                                                                                                               |
-| `traefik.frontend.whiteList.sourceRange=RANGE`                      | Sets a list of IP-Ranges which are allowed to access.<br>An unset or empty list allows all Source-IPs to access. If one of the Net-Specifications are invalid, the whole list is invalid and allows all Source-IPs to access. |
-| `traefik.frontend.whiteList.useXForwardedFor=true`                  | Uses `X-Forwarded-For` header as valid source of IP for the white list.                                                                                                                                                       |
+| Label                                                                   | Description                                                                                                                                                                                                                   |
+|-------------------------------------------------------------------------|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
+| `traefik.domain`                                                        | Sets the default base domain for the frontend rules.                                                                                                                                                                          |
+| `traefik.enable=false`                                                  | Disables this container in Traefik.                                                                                                                                                                                           |
+| `traefik.port=80`                                                       | Registers this port. Useful when the application exposes multiple ports.                                                                                                                                                      |
+| `traefik.portName=web`                                                  | Registers port by name in the application's ports array. Useful when the application exposes multiple ports.                                                                                                                  |
+| `traefik.portIndex=1`                                                   | Registers port by index in the application's ports array. Useful when the application exposes multiple ports.                                                                                                                 |
+| `traefik.protocol=https`                                                | Overrides the default `http` protocol                                                                                                                                                                                         |
+| `traefik.weight=10`                                                     | Assigns this weight to the container                                                                                                                                                                                          |
+| `traefik.backend=foo`                                                   | Overrides the task name by `foo` in the generated name of the backend.                                                                                                                                                        |
+| `traefik.backend.buffering.maxRequestBodyBytes=0`                       | See [buffering](/configuration/commons/#buffering) section.                                                                                                                                                                   |
+| `traefik.backend.buffering.maxResponseBodyBytes=0`                      | See [buffering](/configuration/commons/#buffering) section.                                                                                                                                                                   |
+| `traefik.backend.buffering.memRequestBodyBytes=0`                       | See [buffering](/configuration/commons/#buffering) section.                                                                                                                                                                   |
+| `traefik.backend.buffering.memResponseBodyBytes=0`                      | See [buffering](/configuration/commons/#buffering) section.                                                                                                                                                                   |
+| `traefik.backend.buffering.retryExpression=EXPR`                        | See [buffering](/configuration/commons/#buffering) section.                                                                                                                                                                   |
+| `traefik.backend.circuitbreaker.expression=EXPR`                        | Creates a [circuit breaker](/basics/#backends) to be used against the backend                                                                                                                                                 |
+| `traefik.backend.responseForwarding.flushInterval=10ms`                 | Defines the interval between two flushes when forwarding response from backend to client.                                                                                                                                     |
+| `traefik.backend.healthcheck.path=/health`                              | Enables health check for the backend, hitting the container at `path`.                                                                                                                                                        |
+| `traefik.backend.healthcheck.interval=1s`                               | Defines the health check interval. (Default: 30s)                                                                                                                                                                             |
+| `traefik.backend.healthcheck.scheme=http`                               | Overrides the server URL scheme.                                                                                                                                                                                              |
+| `traefik.backend.healthcheck.port=8080`                                 | Sets a different port for the health check.                                                                                                                                                                                   |
+| `traefik.backend.healthcheck.hostname=foobar.com`                       | Defines the health check hostname.                                                                                                                                                                                            |
+| `traefik.backend.healthcheck.headers=EXPR`                              | Defines the health check request headers <br>Format:  <code>HEADER:value&vert;&vert;HEADER2:value2</code>                                                                                                                     |
+| `traefik.backend.loadbalancer.method=drr`                               | Overrides the default `wrr` load balancer algorithm                                                                                                                                                                           |
+| `traefik.backend.loadbalancer.stickiness=true`                          | Enables backend sticky sessions                                                                                                                                                                                               |
+| `traefik.backend.loadbalancer.stickiness.cookieName=NAME`               | Sets the cookie manually name for sticky sessions                                                                                                                                                                             |
+| `traefik.backend.maxconn.amount=10`                                     | Sets a maximum number of connections to the backend.<br>Must be used in conjunction with the below label to take effect.                                                                                                      |
+| `traefik.backend.maxconn.extractorfunc=client.ip`                       | Sets the function to be used against the request to determine what to limit maximum connections to the backend by.<br>Must be used in conjunction with the above label to take effect.                                        |
+| `traefik.frontend.auth.basic=EXPR`                                      | Sets basic authentication to this frontend in CSV format: `User:Hash,User:Hash` (DEPRECATED).                                                                                                                                 |
+| `traefik.frontend.auth.basic.users=EXPR`                                | Sets basic authentication to this frontend in CSV format: `User:Hash,User:Hash`.                                                                                                                                              |
+| `traefik.frontend.auth.basic.removeHeader=true`                         | If set to `true`, removes the `Authorization` header.                                                                                                                                                                         |
+| `traefik.frontend.auth.basic.usersFile=/path/.htpasswd`                 | Sets basic authentication with an external file; if users and usersFile are provided, both are merged, with external file contents having precedence.                                                                         |
+| `traefik.frontend.auth.digest.removeHeader=true`                        | If set to `true`, removes the `Authorization` header.                                                                                                                                                                         |
+| `traefik.frontend.auth.digest.users=EXPR`                               | Sets digest authentication to this frontend in CSV format: `User:Realm:Hash,User:Realm:Hash`.                                                                                                                                 |
+| `traefik.frontend.auth.digest.usersFile=/path/.htdigest`                | Sets digest authentication with an external file; if users and usersFile are provided, both are merged, with external file contents having precedence.                                                                        |
+| `traefik.frontend.auth.forward.address=https://example.com`             | Sets the URL of the authentication server.                                                                                                                                                                                    |
+| `traefik.frontend.auth.forward.authResponseHeaders=EXPR`                | Sets the forward authentication authResponseHeaders in CSV format: `X-Auth-User,X-Auth-Header`                                                                                                                                |
+| `traefik.frontend.auth.forward.tls.ca=/path/ca.pem`                     | Sets the Certificate Authority (CA) for the TLS connection with the authentication server.                                                                                                                                    |
+| `traefik.frontend.auth.forward.tls.caOptional=true`                     | Checks the certificates if present but do not force to be signed by a specified Certificate Authority (CA).                                                                                                                   |
+| `traefik.frontend.auth.forward.tls.cert=/path/server.pem`               | Sets the Certificate for the TLS connection with the authentication server.                                                                                                                                                   |
+| `traefik.frontend.auth.forward.tls.insecureSkipVerify=true`             | If set to true invalid SSL certificates are accepted.                                                                                                                                                                         |
+| `traefik.frontend.auth.forward.tls.key=/path/server.key`                | Sets the Certificate for the TLS connection with the authentication server.                                                                                                                                                   |
+| `traefik.frontend.auth.forward.trustForwardHeader=true`                 | Trusts X-Forwarded-* headers.                                                                                                                                                                                                 |
+| `traefik.frontend.auth.headerField=X-WebAuth-User`                      | Sets the header used to pass the authenticated user to the application.                                                                                                                                                       |
+| `traefik.frontend.auth.removeHeader=true`                               | If set to true, removes the Authorization header.                                                                                                                                                                             |
+| `traefik.frontend.entryPoints=http,https`                               | Assigns this frontend to entry points `http` and `https`.<br>Overrides `defaultEntryPoints`                                                                                                                                   |
+| `traefik.frontend.errors.<name>.backend=NAME`                           | See [custom error pages](/configuration/commons/#custom-error-pages) section.                                                                                                                                                 |
+| `traefik.frontend.errors.<name>.query=PATH`                             | See [custom error pages](/configuration/commons/#custom-error-pages) section.                                                                                                                                                 |
+| `traefik.frontend.errors.<name>.status=RANGE`                           | See [custom error pages](/configuration/commons/#custom-error-pages) section.                                                                                                                                                 |
+| `traefik.frontend.passHostHeader=true`                                  | Forwards client `Host` header to the backend.                                                                                                                                                                                 |
+| `traefik.frontend.passTLSClientCert.infos.issuer.commonName=true`       | Add the issuer.commonName field in a escaped client infos in the `X-Forwarded-Ssl-Client-Cert-Infos` header.                                                                                                                  |
+| `traefik.frontend.passTLSClientCert.infos.issuer.country=true`          | Add the issuer.country field in a escaped client infos in the `X-Forwarded-Ssl-Client-Cert-Infos` header.                                                                                                                     |
+| `traefik.frontend.passTLSClientCert.infos.issuer.domainComponent=true`  | Add the issuer.domainComponent field in a escaped client infos in the `X-Forwarded-Ssl-Client-Cert-Infos` header.                                                                                                             |
+| `traefik.frontend.passTLSClientCert.infos.issuer.locality=true`         | Add the issuer.locality field in a escaped client infos in the `X-Forwarded-Ssl-Client-Cert-Infos` header.                                                                                                                    |
+| `traefik.frontend.passTLSClientCert.infos.issuer.organization=true`     | Add the issuer.organization field in a escaped client infos in the `X-Forwarded-Ssl-Client-Cert-Infos` header.                                                                                                                |
+| `traefik.frontend.passTLSClientCert.infos.issuer.province=true`         | Add the issuer.province field in a escaped client infos in the `X-Forwarded-Ssl-Client-Cert-Infos` header.                                                                                                                    |
+| `traefik.frontend.passTLSClientCert.infos.issuer.serialNumber=true`     | Add the issuer.serialNumber field in a escaped client infos in the `X-Forwarded-Ssl-Client-Cert-Infos` header.                                                                                                                |
+| `traefik.frontend.passTLSClientCert.infos.notAfter=true`                | Add the noAfter field in a escaped client infos in the `X-Forwarded-Ssl-Client-Cert-Infos` header.                                                                                                                            |
+| `traefik.frontend.passTLSClientCert.infos.notBefore=true`               | Add the noBefore field in a escaped client infos in the `X-Forwarded-Ssl-Client-Cert-Infos` header.                                                                                                                           |
+| `traefik.frontend.passTLSClientCert.infos.sans=true`                    | Add the sans field in a escaped client infos in the `X-Forwarded-Ssl-Client-Cert-Infos` header.                                                                                                                               |
+| `traefik.frontend.passTLSClientCert.infos.subject.commonName=true`      | Add the subject.commonName field in a escaped client infos in the `X-Forwarded-Ssl-Client-Cert-Infos` header.                                                                                                                 |
+| `traefik.frontend.passTLSClientCert.infos.subject.country=true`         | Add the subject.country field in a escaped client infos in the `X-Forwarded-Ssl-Client-Cert-Infos` header.                                                                                                                    |
+| `traefik.frontend.passTLSClientCert.infos.subject.domainComponent=true` | Add the subject.domainComponent field in a escaped client infos in the `X-Forwarded-Ssl-Client-Cert-Infos` header.                                                                                                            |
+| `traefik.frontend.passTLSClientCert.infos.subject.locality=true`        | Add the subject.locality field in a escaped client infos in the `X-Forwarded-Ssl-Client-Cert-Infos` header.                                                                                                                   |
+| `traefik.frontend.passTLSClientCert.infos.subject.organization=true`    | Add the subject.organization field in a escaped client infos in the `X-Forwarded-Ssl-Client-Cert-Infos` header.                                                                                                               |
+| `traefik.frontend.passTLSClientCert.infos.subject.province=true`        | Add the subject.province field in a escaped client infos in the `X-Forwarded-Ssl-Client-Cert-Infos` header.                                                                                                                   |
+| `traefik.frontend.passTLSClientCert.infos.subject.serialNumber=true`    | Add the subject.serialNumber field in a escaped client infos in the `X-Forwarded-Ssl-Client-Cert-Infos` header.                                                                                                               |
+| `traefik.frontend.passTLSClientCert.pem=true`                           | Pass the escaped pem in the `X-Forwarded-Ssl-Client-Cert` header.                                                                                                                                                             |
+| `traefik.frontend.passTLSCert=true`                                     | Forwards TLS Client certificates to the backend.                                                                                                                                                                              |
+| `traefik.frontend.priority=10`                                          | Overrides default frontend priority                                                                                                                                                                                           |
+| `traefik.frontend.rateLimit.extractorFunc=EXP`                          | See [rate limiting](/configuration/commons/#rate-limiting) section.                                                                                                                                                           |
+| `traefik.frontend.rateLimit.rateSet.<name>.period=6`                    | See [rate limiting](/configuration/commons/#rate-limiting) section.                                                                                                                                                           |
+| `traefik.frontend.rateLimit.rateSet.<name>.average=6`                   | See [rate limiting](/configuration/commons/#rate-limiting) section.                                                                                                                                                           |
+| `traefik.frontend.rateLimit.rateSet.<name>.burst=6`                     | See [rate limiting](/configuration/commons/#rate-limiting) section.                                                                                                                                                           |
+| `traefik.frontend.redirect.entryPoint=https`                            | Enables Redirect to another entryPoint to this frontend (e.g. HTTPS)                                                                                                                                                          |
+| `traefik.frontend.redirect.regex=^http://localhost/(.*)`                | Redirects to another URL to this frontend.<br>Must be set with `traefik.frontend.redirect.replacement`.                                                                                                                       |
+| `traefik.frontend.redirect.replacement=http://mydomain/$1`              | Redirects to another URL to this frontend.<br>Must be set with `traefik.frontend.redirect.regex`.                                                                                                                             |
+| `traefik.frontend.redirect.permanent=true`                              | Returns 301 instead of 302.                                                                                                                                                                                                   |
+| `traefik.frontend.rule=EXPR`                                            | Overrides the default frontend rule. Default: `Host:{discovery_name}.{domain}`.                                                                                                                                               |
+| `traefik.frontend.whiteList.sourceRange=RANGE`                          | Sets a list of IP-Ranges which are allowed to access.<br>An unset or empty list allows all Source-IPs to access. If one of the Net-Specifications are invalid, the whole list is invalid and allows all Source-IPs to access. |
+| `traefik.frontend.whiteList.useXForwardedFor=true`                      | Uses `X-Forwarded-For` header as valid source of IP for the white list.                                                                                                                                                       |
 
 ### Custom Headers
 

docs/configuration/backends/rancher.md

@@ -2,6 +2,11 @@
 
 Traefik can be configured to use Rancher as a provider.
 
+!!! important
+    This provider is specific to Rancher 1.x.
+    Rancher 2.x requires Kubernetes and does not have a metadata endpoint of its own for Traefik to query.
+    As such, Rancher 2.x users should utilize the [Kubernetes provider](./kubernetes.md) directly.
+
 ## Global Configuration
 
 ```toml
@@ -138,77 +143,85 @@ secretKey = "xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx"
 
 Labels can be used on task containers to override default behavior:
 
-| Label                                                               | Description                                                                                                                                                                                                                      |
-|---------------------------------------------------------------------|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
-| `traefik.domain`                                                    | Sets the default base domain for the frontend rules.                                                                                                                                                                             |
-| `traefik.enable=false`                                              | Disables this container in Traefik.                                                                                                                                                                                              |
-| `traefik.port=80`                                                   | Registers this port. Useful when the container exposes multiple ports.                                                                                                                                                           |
-| `traefik.protocol=https`                                            | Overrides the default `http` protocol.                                                                                                                                                                                           |
-| `traefik.weight=10`                                                 | Assigns this weight to the container.                                                                                                                                                                                            |
-| `traefik.backend=foo`                                               | Gives the name `foo` to the generated backend for this container.                                                                                                                                                                |
-| `traefik.backend.buffering.maxRequestBodyBytes=0`                   | See [buffering](/configuration/commons/#buffering) section.                                                                                                                                                                      |
-| `traefik.backend.buffering.maxResponseBodyBytes=0`                  | See [buffering](/configuration/commons/#buffering) section.                                                                                                                                                                      |
-| `traefik.backend.buffering.memRequestBodyBytes=0`                   | See [buffering](/configuration/commons/#buffering) section.                                                                                                                                                                      |
-| `traefik.backend.buffering.memResponseBodyBytes=0`                  | See [buffering](/configuration/commons/#buffering) section.                                                                                                                                                                      |
-| `traefik.backend.buffering.retryExpression=EXPR`                    | See [buffering](/configuration/commons/#buffering) section.                                                                                                                                                                      |
-| `traefik.backend.circuitbreaker.expression=EXPR`                    | Creates a [circuit breaker](/basics/#backends) to be used against the backend                                                                                                                                                    |
-| `traefik.backend.responseForwarding.flushInterval=10ms`             | Defines the interval between two flushes when forwarding response from backend to client.                                                                                                                                        |
-| `traefik.backend.healthcheck.path=/health`                          | Enables health check for the backend, hitting the container at `path`.                                                                                                                                                           |
-| `traefik.backend.healthcheck.interval=1s`                           | Defines the health check interval.                                                                                                                                                                                               |
-| `traefik.backend.healthcheck.port=8080`                             | Sets a different port for the health check.                                                                                                                                                                                      |
-| `traefik.backend.healthcheck.scheme=http`                           | Overrides the server URL scheme.                                                                                                                                                                                                 |
-| `traefik.backend.healthcheck.hostname=foobar.com`                   | Defines the health check hostname.                                                                                                                                                                                               |
-| `traefik.backend.healthcheck.headers=EXPR`                          | Defines the health check request headers <br>Format:  <code>HEADER:value&vert;&vert;HEADER2:value2</code>                                                                                                                        |
-| `traefik.backend.loadbalancer.method=drr`                           | Overrides the default `wrr` load balancer algorithm                                                                                                                                                                              |
-| `traefik.backend.loadbalancer.stickiness=true`                      | Enables backend sticky sessions                                                                                                                                                                                                  |
-| `traefik.backend.loadbalancer.stickiness.cookieName=NAME`           | Sets the cookie name manually for sticky sessions                                                                                                                                                                                |
-| `traefik.backend.loadbalancer.sticky=true`                          | Enables backend sticky sessions (DEPRECATED)                                                                                                                                                                                     |
-| `traefik.backend.maxconn.amount=10`                                 | Sets a maximum number of connections to the backend.<br>Must be used in conjunction with the below label to take effect.                                                                                                         |
-| `traefik.backend.maxconn.extractorfunc=client.ip`                   | Sets the function to be used against the request to determine what to limit maximum connections to the backend by.<br>Must be used in conjunction with the above label to take effect.                                           |
-| `traefik.frontend.auth.basic=EXPR`                                  | Sets the basic authentication to this frontend in CSV format: `User:Hash,User:Hash` (DEPRECATED).                                                                                                                                |
-| `traefik.frontend.auth.basic.removeHeader=true`                     | If set to `true`, removes the `Authorization` header.                                                                                                                                                                            |
-| `traefik.frontend.auth.basic.users=EXPR`                            | Sets the basic authentication to this frontend in CSV format: `User:Hash,User:Hash` .                                                                                                                                            |
-| `traefik.frontend.auth.basic.usersFile=/path/.htpasswd`             | Sets the basic authentication with an external file; if users and usersFile are provided, both are merged, with external file contents having precedence.                                                                        |
-| `traefik.frontend.auth.digest.removeHeader=true`                    | If set to `true`, removes the `Authorization` header.                                                                                                                                                                            |
-| `traefik.frontend.auth.digest.users=EXPR`                           | Sets the digest authentication to this frontend in CSV format: `User:Realm:Hash,User:Realm:Hash`.                                                                                                                                |
-| `traefik.frontend.auth.digest.usersFile=/path/.htdigest`            | Sets the digest authentication with an external file; if users and usersFile are provided, both are merged, with external file contents having precedence.                                                                       |
-| `traefik.frontend.auth.forward.address=https://example.com`         | Sets the URL of the authentication server.                                                                                                                                                                                       |
-| `traefik.frontend.auth.forward.authResponseHeaders=EXPR`            | Sets the forward authentication authResponseHeaders in CSV format: `X-Auth-User,X-Auth-Header`                                                                                                                                   |
-| `traefik.frontend.auth.forward.tls.ca=/path/ca.pem`                 | Sets the Certificate Authority (CA) for the TLS connection with the authentication server.                                                                                                                                       |
-| `traefik.frontend.auth.forward.tls.caOptional=true`                 | Checks the certificates if present but do not force to be signed by a specified Certificate Authority (CA).                                                                                                                      |
-| `traefik.frontend.auth.forward.tls.cert=/path/server.pem`           | Sets the Certificate for the TLS connection with the authentication server.                                                                                                                                                      |
-| `traefik.frontend.auth.forward.tls.insecureSkipVerify=true`         | If set to true invalid SSL certificates are accepted.                                                                                                                                                                            |
-| `traefik.frontend.auth.forward.tls.key=/path/server.key`            | Sets the Certificate for the TLS connection with the authentication server.                                                                                                                                                      |
-| `traefik.frontend.auth.forward.trustForwardHeader=true`             | Trusts X-Forwarded-* headers.                                                                                                                                                                                                    |
-| `traefik.frontend.auth.headerField=X-WebAuth-User`                  | Sets the header used to pass the authenticated user to the application.                                                                                                                                                          |
-| `traefik.frontend.entryPoints=http,https`                           | Assigns this frontend to entry points `http` and `https`.<br>Overrides `defaultEntryPoints`                                                                                                                                      |
-| `traefik.frontend.errors.<name>.backend=NAME`                       | See [custom error pages](/configuration/commons/#custom-error-pages) section.                                                                                                                                                    |
-| `traefik.frontend.errors.<name>.query=PATH`                         | See [custom error pages](/configuration/commons/#custom-error-pages) section.                                                                                                                                                    |
-| `traefik.frontend.errors.<name>.status=RANGE`                       | See [custom error pages](/configuration/commons/#custom-error-pages) section.                                                                                                                                                    |
-| `traefik.frontend.passHostHeader=true`                              | Forwards client `Host` header to the backend.                                                                                                                                                                                    |
-| `traefik.frontend.passTLSClientCert.infos.notAfter=true`            | Add the noAfter field in a escaped client infos in the `X-Forwarded-Ssl-Client-Cert-Infos` header.                                                                                                                               |
-| `traefik.frontend.passTLSClientCert.infos.notBefore=true`           | Add the noBefore field in a escaped client infos in the `X-Forwarded-Ssl-Client-Cert-Infos` header.                                                                                                                              |
-| `traefik.frontend.passTLSClientCert.infos.sans=true`                | Add the sans field in a escaped client infos in the `X-Forwarded-Ssl-Client-Cert-Infos` header.                                                                                                                                  |
-| `traefik.frontend.passTLSClientCert.infos.subject.commonName=true`  | Add the subject.commonName field in a escaped client infos in the `X-Forwarded-Ssl-Client-Cert-Infos` header.                                                                                                                    |
-| `traefik.frontend.passTLSClientCert.infos.subject.country=true`     | Add the subject.country field in a escaped client infos in the `X-Forwarded-Ssl-Client-Cert-Infos` header.                                                                                                                       |
-| `traefik.frontend.passTLSClientCert.infos.subject.locality=true`    | Add the subject.locality field in a escaped client infos in the `X-Forwarded-Ssl-Client-Cert-Infos` header.                                                                                                                      |
-| `traefik.frontend.passTLSClientCert.infos.subject.organization=true`| Add the subject.organization field in a escaped client infos in the `X-Forwarded-Ssl-Client-Cert-Infos` header.                                                                                                                  |
-| `traefik.frontend.passTLSClientCert.infos.subject.province=true`    | Add the subject.province field in a escaped client infos in the `X-Forwarded-Ssl-Client-Cert-Infos` header.                                                                                                                      |
-| `traefik.frontend.passTLSClientCert.infos.subject.serialNumber=true`| Add the subject.serialNumber field in a escaped client infos in the `X-Forwarded-Ssl-Client-Cert-Infos` header.                                                                                                                  |
-| `traefik.frontend.passTLSClientCert.pem=true`                       | Pass the escaped pem in the `X-Forwarded-Ssl-Client-Cert` header.                                                                                                                                                                |
-| `traefik.frontend.passTLSCert=true`                                 | Forwards TLS Client certificates to the backend.                                                                                                                                                                                 |
-| `traefik.frontend.priority=10`                                      | Overrides default frontend priority                                                                                                                                                                                              |
-| `traefik.frontend.rateLimit.extractorFunc=EXP`                      | See [rate limiting](/configuration/commons/#rate-limiting) section.                                                                                                                                                              |
-| `traefik.frontend.rateLimit.rateSet.<name>.period=6`                | See [rate limiting](/configuration/commons/#rate-limiting) section.                                                                                                                                                              |
-| `traefik.frontend.rateLimit.rateSet.<name>.average=6`               | See [rate limiting](/configuration/commons/#rate-limiting) section.                                                                                                                                                              |
-| `traefik.frontend.rateLimit.rateSet.<name>.burst=6`                 | See [rate limiting](/configuration/commons/#rate-limiting) section.                                                                                                                                                              |
-| `traefik.frontend.redirect.entryPoint=https`                        | Enables Redirect to another entryPoint to this frontend (e.g. HTTPS)                                                                                                                                                             |
-| `traefik.frontend.redirect.regex=^http://localhost/(.*)`            | Redirects to another URL to this frontend.<br>Must be set with `traefik.frontend.redirect.replacement`.                                                                                                                          |
-| `traefik.frontend.redirect.replacement=http://mydomain/$1`          | Redirects to another URL to this frontend.<br>Must be set with `traefik.frontend.redirect.regex`.                                                                                                                                |
-| `traefik.frontend.redirect.permanent=true`                          | Returns 301 instead of 302.                                                                                                                                                                                                      |
-| `traefik.frontend.rule=EXPR`                                        | Overrides the default frontend rule. Default: `Host:{containerName}.{domain}` or `Host:{service}.{project_name}.{domain}` if you are using `docker-compose`.                                                                     |
-| `traefik.frontend.whiteList.sourceRange=RANGE`                      | Sets a list of IP-Ranges which are allowed to access.<br>An unset or empty list allows all Source-IPs to access.<br>If one of the Net-Specifications are invalid, the whole list is invalid and allows all Source-IPs to access. |
-| `traefik.frontend.whiteList.useXForwardedFor=true`                  | Uses `X-Forwarded-For` header as valid source of IP for the white list.                                                                                                                                                          |
+| Label                                                                   | Description                                                                                                                                                                                                                      |
+|-------------------------------------------------------------------------|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
+| `traefik.domain`                                                        | Sets the default base domain for the frontend rules.                                                                                                                                                                             |
+| `traefik.enable=false`                                                  | Disables this container in Traefik.                                                                                                                                                                                              |
+| `traefik.port=80`                                                       | Registers this port. Useful when the container exposes multiple ports.                                                                                                                                                           |
+| `traefik.protocol=https`                                                | Overrides the default `http` protocol.                                                                                                                                                                                           |
+| `traefik.weight=10`                                                     | Assigns this weight to the container.                                                                                                                                                                                            |
+| `traefik.backend=foo`                                                   | Overrides the service name by `foo` in the generated name of the backend.                                                                                                                                                        |
+| `traefik.backend.buffering.maxRequestBodyBytes=0`                       | See [buffering](/configuration/commons/#buffering) section.                                                                                                                                                                      |
+| `traefik.backend.buffering.maxResponseBodyBytes=0`                      | See [buffering](/configuration/commons/#buffering) section.                                                                                                                                                                      |
+| `traefik.backend.buffering.memRequestBodyBytes=0`                       | See [buffering](/configuration/commons/#buffering) section.                                                                                                                                                                      |
+| `traefik.backend.buffering.memResponseBodyBytes=0`                      | See [buffering](/configuration/commons/#buffering) section.                                                                                                                                                                      |
+| `traefik.backend.buffering.retryExpression=EXPR`                        | See [buffering](/configuration/commons/#buffering) section.                                                                                                                                                                      |
+| `traefik.backend.circuitbreaker.expression=EXPR`                        | Creates a [circuit breaker](/basics/#backends) to be used against the backend                                                                                                                                                    |
+| `traefik.backend.responseForwarding.flushInterval=10ms`                 | Defines the interval between two flushes when forwarding response from backend to client.                                                                                                                                        |
+| `traefik.backend.healthcheck.path=/health`                              | Enables health check for the backend, hitting the container at `path`.                                                                                                                                                           |
+| `traefik.backend.healthcheck.interval=1s`                               | Defines the health check interval.                                                                                                                                                                                               |
+| `traefik.backend.healthcheck.port=8080`                                 | Sets a different port for the health check.                                                                                                                                                                                      |
+| `traefik.backend.healthcheck.scheme=http`                               | Overrides the server URL scheme.                                                                                                                                                                                                 |
+| `traefik.backend.healthcheck.hostname=foobar.com`                       | Defines the health check hostname.                                                                                                                                                                                               |
+| `traefik.backend.healthcheck.headers=EXPR`                              | Defines the health check request headers <br>Format:  <code>HEADER:value&vert;&vert;HEADER2:value2</code>                                                                                                                        |
+| `traefik.backend.loadbalancer.method=drr`                               | Overrides the default `wrr` load balancer algorithm                                                                                                                                                                              |
+| `traefik.backend.loadbalancer.stickiness=true`                          | Enables backend sticky sessions                                                                                                                                                                                                  |
+| `traefik.backend.loadbalancer.stickiness.cookieName=NAME`               | Sets the cookie name manually for sticky sessions                                                                                                                                                                                |
+| `traefik.backend.loadbalancer.sticky=true`                              | Enables backend sticky sessions (DEPRECATED)                                                                                                                                                                                     |
+| `traefik.backend.maxconn.amount=10`                                     | Sets a maximum number of connections to the backend.<br>Must be used in conjunction with the below label to take effect.                                                                                                         |
+| `traefik.backend.maxconn.extractorfunc=client.ip`                       | Sets the function to be used against the request to determine what to limit maximum connections to the backend by.<br>Must be used in conjunction with the above label to take effect.                                           |
+| `traefik.frontend.auth.basic=EXPR`                                      | Sets the basic authentication to this frontend in CSV format: `User:Hash,User:Hash` (DEPRECATED).                                                                                                                                |
+| `traefik.frontend.auth.basic.removeHeader=true`                         | If set to `true`, removes the `Authorization` header.                                                                                                                                                                            |
+| `traefik.frontend.auth.basic.users=EXPR`                                | Sets the basic authentication to this frontend in CSV format: `User:Hash,User:Hash` .                                                                                                                                            |
+| `traefik.frontend.auth.basic.usersFile=/path/.htpasswd`                 | Sets the basic authentication with an external file; if users and usersFile are provided, both are merged, with external file contents having precedence.                                                                        |
+| `traefik.frontend.auth.digest.removeHeader=true`                        | If set to `true`, removes the `Authorization` header.                                                                                                                                                                            |
+| `traefik.frontend.auth.digest.users=EXPR`                               | Sets the digest authentication to this frontend in CSV format: `User:Realm:Hash,User:Realm:Hash`.                                                                                                                                |
+| `traefik.frontend.auth.digest.usersFile=/path/.htdigest`                | Sets the digest authentication with an external file; if users and usersFile are provided, both are merged, with external file contents having precedence.                                                                       |
+| `traefik.frontend.auth.forward.address=https://example.com`             | Sets the URL of the authentication server.                                                                                                                                                                                       |
+| `traefik.frontend.auth.forward.authResponseHeaders=EXPR`                | Sets the forward authentication authResponseHeaders in CSV format: `X-Auth-User,X-Auth-Header`                                                                                                                                   |
+| `traefik.frontend.auth.forward.tls.ca=/path/ca.pem`                     | Sets the Certificate Authority (CA) for the TLS connection with the authentication server.                                                                                                                                       |
+| `traefik.frontend.auth.forward.tls.caOptional=true`                     | Checks the certificates if present but do not force to be signed by a specified Certificate Authority (CA).                                                                                                                      |
+| `traefik.frontend.auth.forward.tls.cert=/path/server.pem`               | Sets the Certificate for the TLS connection with the authentication server.                                                                                                                                                      |
+| `traefik.frontend.auth.forward.tls.insecureSkipVerify=true`             | If set to true invalid SSL certificates are accepted.                                                                                                                                                                            |
+| `traefik.frontend.auth.forward.tls.key=/path/server.key`                | Sets the Certificate for the TLS connection with the authentication server.                                                                                                                                                      |
+| `traefik.frontend.auth.forward.trustForwardHeader=true`                 | Trusts X-Forwarded-* headers.                                                                                                                                                                                                    |
+| `traefik.frontend.auth.headerField=X-WebAuth-User`                      | Sets the header used to pass the authenticated user to the application.                                                                                                                                                          |
+| `traefik.frontend.entryPoints=http,https`                               | Assigns this frontend to entry points `http` and `https`.<br>Overrides `defaultEntryPoints`                                                                                                                                      |
+| `traefik.frontend.errors.<name>.backend=NAME`                           | See [custom error pages](/configuration/commons/#custom-error-pages) section.                                                                                                                                                    |
+| `traefik.frontend.errors.<name>.query=PATH`                             | See [custom error pages](/configuration/commons/#custom-error-pages) section.                                                                                                                                                    |
+| `traefik.frontend.errors.<name>.status=RANGE`                           | See [custom error pages](/configuration/commons/#custom-error-pages) section.                                                                                                                                                    |
+| `traefik.frontend.passHostHeader=true`                                  | Forwards client `Host` header to the backend.                                                                                                                                                                                    |
+| `traefik.frontend.passTLSClientCert.infos.issuer.commonName=true`       | Add the issuer.commonName field in a escaped client infos in the `X-Forwarded-Ssl-Client-Cert-Infos` header.                                                                                                                     |
+| `traefik.frontend.passTLSClientCert.infos.issuer.country=true`          | Add the issuer.country field in a escaped client infos in the `X-Forwarded-Ssl-Client-Cert-Infos` header.                                                                                                                        |
+| `traefik.frontend.passTLSClientCert.infos.issuer.domainComponent=true`  | Add the issuer.domainComponent field in a escaped client infos in the `X-Forwarded-Ssl-Client-Cert-Infos` header.                                                                                                                |
+| `traefik.frontend.passTLSClientCert.infos.issuer.locality=true`         | Add the issuer.locality field in a escaped client infos in the `X-Forwarded-Ssl-Client-Cert-Infos` header.                                                                                                                       |
+| `traefik.frontend.passTLSClientCert.infos.issuer.organization=true`     | Add the issuer.organization field in a escaped client infos in the `X-Forwarded-Ssl-Client-Cert-Infos` header.                                                                                                                   |
+| `traefik.frontend.passTLSClientCert.infos.issuer.province=true`         | Add the issuer.province field in a escaped client infos in the `X-Forwarded-Ssl-Client-Cert-Infos` header.                                                                                                                       |
+| `traefik.frontend.passTLSClientCert.infos.issuer.serialNumber=true`     | Add the issuer.serialNumber field in a escaped client infos in the `X-Forwarded-Ssl-Client-Cert-Infos` header.                                                                                                                   |
+| `traefik.frontend.passTLSClientCert.infos.notAfter=true`                | Add the noAfter field in a escaped client infos in the `X-Forwarded-Ssl-Client-Cert-Infos` header.                                                                                                                               |
+| `traefik.frontend.passTLSClientCert.infos.notBefore=true`               | Add the noBefore field in a escaped client infos in the `X-Forwarded-Ssl-Client-Cert-Infos` header.                                                                                                                              |
+| `traefik.frontend.passTLSClientCert.infos.sans=true`                    | Add the sans field in a escaped client infos in the `X-Forwarded-Ssl-Client-Cert-Infos` header.                                                                                                                                  |
+| `traefik.frontend.passTLSClientCert.infos.subject.commonName=true`      | Add the subject.commonName field in a escaped client infos in the `X-Forwarded-Ssl-Client-Cert-Infos` header.                                                                                                                    |
+| `traefik.frontend.passTLSClientCert.infos.subject.country=true`         | Add the subject.country field in a escaped client infos in the `X-Forwarded-Ssl-Client-Cert-Infos` header.                                                                                                                       |
+| `traefik.frontend.passTLSClientCert.infos.subject.domainComponent=true` | Add the subject.domainComponent field in a escaped client infos in the `X-Forwarded-Ssl-Client-Cert-Infos` header.                                                                                                               |
+| `traefik.frontend.passTLSClientCert.infos.subject.locality=true`        | Add the subject.locality field in a escaped client infos in the `X-Forwarded-Ssl-Client-Cert-Infos` header.                                                                                                                      |
+| `traefik.frontend.passTLSClientCert.infos.subject.organization=true`    | Add the subject.organization field in a escaped client infos in the `X-Forwarded-Ssl-Client-Cert-Infos` header.                                                                                                                  |
+| `traefik.frontend.passTLSClientCert.infos.subject.province=true`        | Add the subject.province field in a escaped client infos in the `X-Forwarded-Ssl-Client-Cert-Infos` header.                                                                                                                      |
+| `traefik.frontend.passTLSClientCert.infos.subject.serialNumber=true`    | Add the subject.serialNumber field in a escaped client infos in the `X-Forwarded-Ssl-Client-Cert-Infos` header.                                                                                                                  |
+| `traefik.frontend.passTLSClientCert.pem=true`                           | Pass the escaped pem in the `X-Forwarded-Ssl-Client-Cert` header.                                                                                                                                                                |
+| `traefik.frontend.passTLSCert=true`                                     | Forwards TLS Client certificates to the backend.                                                                                                                                                                                 |
+| `traefik.frontend.priority=10`                                          | Overrides default frontend priority                                                                                                                                                                                              |
+| `traefik.frontend.rateLimit.extractorFunc=EXP`                          | See [rate limiting](/configuration/commons/#rate-limiting) section.                                                                                                                                                              |
+| `traefik.frontend.rateLimit.rateSet.<name>.period=6`                    | See [rate limiting](/configuration/commons/#rate-limiting) section.                                                                                                                                                              |
+| `traefik.frontend.rateLimit.rateSet.<name>.average=6`                   | See [rate limiting](/configuration/commons/#rate-limiting) section.                                                                                                                                                              |
+| `traefik.frontend.rateLimit.rateSet.<name>.burst=6`                     | See [rate limiting](/configuration/commons/#rate-limiting) section.                                                                                                                                                              |
+| `traefik.frontend.redirect.entryPoint=https`                            | Enables Redirect to another entryPoint to this frontend (e.g. HTTPS)                                                                                                                                                             |
+| `traefik.frontend.redirect.regex=^http://localhost/(.*)`                | Redirects to another URL to this frontend.<br>Must be set with `traefik.frontend.redirect.replacement`.                                                                                                                          |
+| `traefik.frontend.redirect.replacement=http://mydomain/$1`              | Redirects to another URL to this frontend.<br>Must be set with `traefik.frontend.redirect.regex`.                                                                                                                                |
+| `traefik.frontend.redirect.permanent=true`                              | Returns 301 instead of 302.                                                                                                                                                                                                      |
+| `traefik.frontend.rule=EXPR`                                            | Overrides the default frontend rule. Default: `Host:{containerName}.{domain}` or `Host:{service}.{project_name}.{domain}` if you are using `docker-compose`.                                                                     |
+| `traefik.frontend.whiteList.sourceRange=RANGE`                          | Sets a list of IP-Ranges which are allowed to access.<br>An unset or empty list allows all Source-IPs to access.<br>If one of the Net-Specifications are invalid, the whole list is invalid and allows all Source-IPs to access. |
+| `traefik.frontend.whiteList.useXForwardedFor=true`                      | Uses `X-Forwarded-For` header as valid source of IP for the white list.                                                                                                                                                          |
 
 #### Custom Headers
 
@@ -250,57 +263,65 @@ You can define as many segments as ports exposed in a container.
 
 Segment labels override the default behavior.
 
-| Label                                                                              | Description                                                            |
-|------------------------------------------------------------------------------------|------------------------------------------------------------------------|
-| `traefik.<segment_name>.backend=BACKEND`                                           | Same as `traefik.backend`                                              |
-| `traefik.<segment_name>.domain=DOMAIN`                                             | Same as `traefik.domain`                                               |
-| `traefik.<segment_name>.port=PORT`                                                 | Same as `traefik.port`                                                 |
-| `traefik.<segment_name>.protocol=http`                                             | Same as `traefik.protocol`                                             |
-| `traefik.<segment_name>.weight=10`                                                 | Same as `traefik.weight`                                               |
-| `traefik.<segment_name>.frontend.auth.basic=EXPR`                                  | Same as `traefik.frontend.auth.basic`                                  |
-| `traefik.<segment_name>.frontend.auth.basic.removeHeader=true`                     | Same as `traefik.frontend.auth.basic.removeHeader`                     |
-| `traefik.<segment_name>.frontend.auth.basic.users=EXPR`                            | Same as `traefik.frontend.auth.basic.users`                            |
-| `traefik.<segment_name>.frontend.auth.basic.usersFile=/path/.htpasswd`             | Same as `traefik.frontend.auth.basic.usersFile`                        |
-| `traefik.<segment_name>.frontend.auth.digest.removeHeader=true`                    | Same as `traefik.frontend.auth.digest.removeHeader`                    |
-| `traefik.<segment_name>.frontend.auth.digest.users=EXPR`                           | Same as `traefik.frontend.auth.digest.users`                           |
-| `traefik.<segment_name>.frontend.auth.digest.usersFile=/path/.htdigest`            | Same as `traefik.frontend.auth.digest.usersFile`                       |
-| `traefik.<segment_name>.frontend.auth.forward.address=https://example.com`         | Same as `traefik.frontend.auth.forward.address`                        |
-| `traefik.<segment_name>.frontend.auth.forward.authResponseHeaders=EXPR`            | Same as `traefik.frontend.auth.forward.authResponseHeaders`            |
-| `traefik.<segment_name>.frontend.auth.forward.tls.ca=/path/ca.pem`                 | Same as `traefik.frontend.auth.forward.tls.ca`                         |
-| `traefik.<segment_name>.frontend.auth.forward.tls.caOptional=true`                 | Same as `traefik.frontend.auth.forward.tls.caOptional`                 |
-| `traefik.<segment_name>.frontend.auth.forward.tls.cert=/path/server.pem`           | Same as `traefik.frontend.auth.forward.tls.cert`                       |
-| `traefik.<segment_name>.frontend.auth.forward.tls.insecureSkipVerify=true`         | Same as `traefik.frontend.auth.forward.tls.insecureSkipVerify`         |
-| `traefik.<segment_name>.frontend.auth.forward.tls.key=/path/server.key`            | Same as `traefik.frontend.auth.forward.tls.key`                        |
-| `traefik.<segment_name>.frontend.auth.forward.trustForwardHeader=true`             | Same as `traefik.frontend.auth.forward.trustForwardHeader`             |
-| `traefik.<segment_name>.frontend.auth.headerField=X-WebAuth-User`                  | Same as `traefik.frontend.auth.headerField`                            |
-| `traefik.<segment_name>.frontend.entryPoints=https`                                | Same as `traefik.frontend.entryPoints`                                 |
-| `traefik.<segment_name>.frontend.errors.<name>.backend=NAME`                       | Same as `traefik.frontend.errors.<name>.backend`                       |
-| `traefik.<segment_name>.frontend.errors.<name>.query=PATH`                         | Same as `traefik.frontend.errors.<name>.query`                         |
-| `traefik.<segment_name>.frontend.errors.<name>.status=RANGE`                       | Same as `traefik.frontend.errors.<name>.status`                        |
-| `traefik.<segment_name>.frontend.passHostHeader=true`                              | Same as `traefik.frontend.passHostHeader`                              |
-| `traefik.<segment_name>.frontend.passTLSClientCert.infos.notAfter=true`            | Same as `traefik.frontend.passTLSClientCert.infos.notAfter`            |
-| `traefik.<segment_name>.frontend.passTLSClientCert.infos.notBefore=true`           | Same as `traefik.frontend.passTLSClientCert.infos.notBefore`           |
-| `traefik.<segment_name>.frontend.passTLSClientCert.infos.sans=true`                | Same as `traefik.frontend.passTLSClientCert.infos.sans`                |
-| `traefik.<segment_name>.frontend.passTLSClientCert.infos.subject.commonName=true`  | Same as `traefik.frontend.passTLSClientCert.infos.subject.commonName`  |
-| `traefik.<segment_name>.frontend.passTLSClientCert.infos.subject.country=true`     | Same as `traefik.frontend.passTLSClientCert.infos.subject.country`     |
-| `traefik.<segment_name>.frontend.passTLSClientCert.infos.subject.locality=true`    | Same as `traefik.frontend.passTLSClientCert.infos.subject.locality`    |
-| `traefik.<segment_name>.frontend.passTLSClientCert.infos.subject.organization=true`| Same as `traefik.frontend.passTLSClientCert.infos.subject.organization`|
-| `traefik.<segment_name>.frontend.passTLSClientCert.infos.subject.province=true`    | Same as `traefik.frontend.passTLSClientCert.infos.subject.province`    |
-| `traefik.<segment_name>.frontend.passTLSClientCert.infos.subject.serialNumber=true`| Same as `traefik.frontend.passTLSClientCert.infos.subject.serialNumber`|
-| `traefik.<segment_name>.frontend.passTLSClientCert.pem=true`                       | Same as `traefik.frontend.passTLSClientCert.infos.pem`                 |
-| `traefik.<segment_name>.frontend.passTLSCert=true`                                 | Same as `traefik.frontend.passTLSCert`                                 |
-| `traefik.<segment_name>.frontend.priority=10`                                      | Same as `traefik.frontend.priority`                                    |
-| `traefik.<segment_name>.frontend.rateLimit.extractorFunc=EXP`                      | Same as `traefik.frontend.rateLimit.extractorFunc`                     |
-| `traefik.<segment_name>.frontend.rateLimit.rateSet.<name>.period=6`                | Same as `traefik.frontend.rateLimit.rateSet.<name>.period`             |
-| `traefik.<segment_name>.frontend.rateLimit.rateSet.<name>.average=6`               | Same as `traefik.frontend.rateLimit.rateSet.<name>.average`            |
-| `traefik.<segment_name>.frontend.rateLimit.rateSet.<name>.burst=6`                 | Same as `traefik.frontend.rateLimit.rateSet.<name>.burst`              |
-| `traefik.<segment_name>.frontend.redirect.entryPoint=https`                        | Same as `traefik.frontend.redirect.entryPoint`                         |
-| `traefik.<segment_name>.frontend.redirect.regex=^http://localhost/(.*)`            | Same as `traefik.frontend.redirect.regex`                              |
-| `traefik.<segment_name>.frontend.redirect.replacement=http://mydomain/$1`          | Same as `traefik.frontend.redirect.replacement`                        |
-| `traefik.<segment_name>.frontend.redirect.permanent=true`                          | Same as `traefik.frontend.redirect.permanent`                          |
-| `traefik.<segment_name>.frontend.rule=EXP`                                         | Same as `traefik.frontend.rule`                                        |
-| `traefik.<segment_name>.frontend.whiteList.sourceRange=RANGE`                      | Same as `traefik.frontend.whiteList.sourceRange`                       |
-| `traefik.<segment_name>.frontend.whiteList.useXForwardedFor=true`                  | Same as `traefik.frontend.whiteList.useXForwardedFor`                  |
+| Label                                                                                  | Description                                                                |
+|----------------------------------------------------------------------------------------|----------------------------------------------------------------------------|
+| `traefik.<segment_name>.backend=BACKEND`                                               | Same as `traefik.backend`                                                  |
+| `traefik.<segment_name>.domain=DOMAIN`                                                 | Same as `traefik.domain`                                                   |
+| `traefik.<segment_name>.port=PORT`                                                     | Same as `traefik.port`                                                     |
+| `traefik.<segment_name>.protocol=http`                                                 | Same as `traefik.protocol`                                                 |
+| `traefik.<segment_name>.weight=10`                                                     | Same as `traefik.weight`                                                   |
+| `traefik.<segment_name>.frontend.auth.basic=EXPR`                                      | Same as `traefik.frontend.auth.basic`                                      |
+| `traefik.<segment_name>.frontend.auth.basic.removeHeader=true`                         | Same as `traefik.frontend.auth.basic.removeHeader`                         |
+| `traefik.<segment_name>.frontend.auth.basic.users=EXPR`                                | Same as `traefik.frontend.auth.basic.users`                                |
+| `traefik.<segment_name>.frontend.auth.basic.usersFile=/path/.htpasswd`                 | Same as `traefik.frontend.auth.basic.usersFile`                            |
+| `traefik.<segment_name>.frontend.auth.digest.removeHeader=true`                        | Same as `traefik.frontend.auth.digest.removeHeader`                        |
+| `traefik.<segment_name>.frontend.auth.digest.users=EXPR`                               | Same as `traefik.frontend.auth.digest.users`                               |
+| `traefik.<segment_name>.frontend.auth.digest.usersFile=/path/.htdigest`                | Same as `traefik.frontend.auth.digest.usersFile`                           |
+| `traefik.<segment_name>.frontend.auth.forward.address=https://example.com`             | Same as `traefik.frontend.auth.forward.address`                            |
+| `traefik.<segment_name>.frontend.auth.forward.authResponseHeaders=EXPR`                | Same as `traefik.frontend.auth.forward.authResponseHeaders`                |
+| `traefik.<segment_name>.frontend.auth.forward.tls.ca=/path/ca.pem`                     | Same as `traefik.frontend.auth.forward.tls.ca`                             |
+| `traefik.<segment_name>.frontend.auth.forward.tls.caOptional=true`                     | Same as `traefik.frontend.auth.forward.tls.caOptional`                     |
+| `traefik.<segment_name>.frontend.auth.forward.tls.cert=/path/server.pem`               | Same as `traefik.frontend.auth.forward.tls.cert`                           |
+| `traefik.<segment_name>.frontend.auth.forward.tls.insecureSkipVerify=true`             | Same as `traefik.frontend.auth.forward.tls.insecureSkipVerify`             |
+| `traefik.<segment_name>.frontend.auth.forward.tls.key=/path/server.key`                | Same as `traefik.frontend.auth.forward.tls.key`                            |
+| `traefik.<segment_name>.frontend.auth.forward.trustForwardHeader=true`                 | Same as `traefik.frontend.auth.forward.trustForwardHeader`                 |
+| `traefik.<segment_name>.frontend.auth.headerField=X-WebAuth-User`                      | Same as `traefik.frontend.auth.headerField`                                |
+| `traefik.<segment_name>.frontend.entryPoints=https`                                    | Same as `traefik.frontend.entryPoints`                                     |
+| `traefik.<segment_name>.frontend.errors.<name>.backend=NAME`                           | Same as `traefik.frontend.errors.<name>.backend`                           |
+| `traefik.<segment_name>.frontend.errors.<name>.query=PATH`                             | Same as `traefik.frontend.errors.<name>.query`                             |
+| `traefik.<segment_name>.frontend.errors.<name>.status=RANGE`                           | Same as `traefik.frontend.errors.<name>.status`                            |
+| `traefik.<segment_name>.frontend.passHostHeader=true`                                  | Same as `traefik.frontend.passHostHeader`                                  |
+| `traefik.<segment_name>.frontend.passTLSClientCert.infos.issuer.commonName=true`       | Same as `traefik.frontend.passTLSClientCert.infos.issuer.commonName`       |
+| `traefik.<segment_name>.frontend.passTLSClientCert.infos.issuer.country=true`          | Same as `traefik.frontend.passTLSClientCert.infos.issuer.country`          |
+| `traefik.<segment_name>.frontend.passTLSClientCert.infos.issuer.domainComponent=true`  | Same as `traefik.frontend.passTLSClientCert.infos.issuer.domainComponent`  |
+| `traefik.<segment_name>.frontend.passTLSClientCert.infos.issuer.locality=true`         | Same as `traefik.frontend.passTLSClientCert.infos.issuer.locality`         |
+| `traefik.<segment_name>.frontend.passTLSClientCert.infos.issuer.organization=true`     | Same as `traefik.frontend.passTLSClientCert.infos.issuer.organization`     |
+| `traefik.<segment_name>.frontend.passTLSClientCert.infos.issuer.province=true`         | Same as `traefik.frontend.passTLSClientCert.infos.issuer.province`         |
+| `traefik.<segment_name>.frontend.passTLSClientCert.infos.issuer.serialNumber=true`     | Same as `traefik.frontend.passTLSClientCert.infos.issuer.serialNumber`     |
+| `traefik.<segment_name>.frontend.passTLSClientCert.infos.notAfter=true`                | Same as `traefik.frontend.passTLSClientCert.infos.notAfter`                |
+| `traefik.<segment_name>.frontend.passTLSClientCert.infos.notBefore=true`               | Same as `traefik.frontend.passTLSClientCert.infos.notBefore`               |
+| `traefik.<segment_name>.frontend.passTLSClientCert.infos.sans=true`                    | Same as `traefik.frontend.passTLSClientCert.infos.sans`                    |
+| `traefik.<segment_name>.frontend.passTLSClientCert.infos.subject.commonName=true`      | Same as `traefik.frontend.passTLSClientCert.infos.subject.commonName`      |
+| `traefik.<segment_name>.frontend.passTLSClientCert.infos.subject.country=true`         | Same as `traefik.frontend.passTLSClientCert.infos.subject.country`         |
+| `traefik.<segment_name>.frontend.passTLSClientCert.infos.subject.domainComponent=true` | Same as `traefik.frontend.passTLSClientCert.infos.subject.domainComponent` |
+| `traefik.<segment_name>.frontend.passTLSClientCert.infos.subject.locality=true`        | Same as `traefik.frontend.passTLSClientCert.infos.subject.locality`        |
+| `traefik.<segment_name>.frontend.passTLSClientCert.infos.subject.organization=true`    | Same as `traefik.frontend.passTLSClientCert.infos.subject.organization`    |
+| `traefik.<segment_name>.frontend.passTLSClientCert.infos.subject.province=true`        | Same as `traefik.frontend.passTLSClientCert.infos.subject.province`        |
+| `traefik.<segment_name>.frontend.passTLSClientCert.infos.subject.serialNumber=true`    | Same as `traefik.frontend.passTLSClientCert.infos.subject.serialNumber`    |
+| `traefik.<segment_name>.frontend.passTLSClientCert.pem=true`                           | Same as `traefik.frontend.passTLSClientCert.infos.pem`                     |
+| `traefik.<segment_name>.frontend.passTLSCert=true`                                     | Same as `traefik.frontend.passTLSCert`                                     |
+| `traefik.<segment_name>.frontend.priority=10`                                          | Same as `traefik.frontend.priority`                                        |
+| `traefik.<segment_name>.frontend.rateLimit.extractorFunc=EXP`                          | Same as `traefik.frontend.rateLimit.extractorFunc`                         |
+| `traefik.<segment_name>.frontend.rateLimit.rateSet.<name>.period=6`                    | Same as `traefik.frontend.rateLimit.rateSet.<name>.period`                 |
+| `traefik.<segment_name>.frontend.rateLimit.rateSet.<name>.average=6`                   | Same as `traefik.frontend.rateLimit.rateSet.<name>.average`                |
+| `traefik.<segment_name>.frontend.rateLimit.rateSet.<name>.burst=6`                     | Same as `traefik.frontend.rateLimit.rateSet.<name>.burst`                  |
+| `traefik.<segment_name>.frontend.redirect.entryPoint=https`                            | Same as `traefik.frontend.redirect.entryPoint`                             |
+| `traefik.<segment_name>.frontend.redirect.regex=^http://localhost/(.*)`                | Same as `traefik.frontend.redirect.regex`                                  |
+| `traefik.<segment_name>.frontend.redirect.replacement=http://mydomain/$1`              | Same as `traefik.frontend.redirect.replacement`                            |
+| `traefik.<segment_name>.frontend.redirect.permanent=true`                              | Same as `traefik.frontend.redirect.permanent`                              |
+| `traefik.<segment_name>.frontend.rule=EXP`                                             | Same as `traefik.frontend.rule`                                            |
+| `traefik.<segment_name>.frontend.whiteList.sourceRange=RANGE`                          | Same as `traefik.frontend.whiteList.sourceRange`                           |
+| `traefik.<segment_name>.frontend.whiteList.useXForwardedFor=true`                      | Same as `traefik.frontend.whiteList.useXForwardedFor`                      |
 
 #### Custom Headers
 

docs/configuration/backends/rest.md

@@ -29,7 +29,7 @@ Traefik can be configured:
 
 
 ```shell
-curl -XPUT @file "http://localhost:8080/api/providers/rest"
+curl -XPUT -d @file "http://localhost:8080/api/providers/rest"
 ```
 
 with `@file`:

docs/configuration/backends/servicefabric.md

@@ -69,6 +69,8 @@ Here is an example of an extension setting Traefik labels:
 </StatelessServiceType>
 ```
 
+> **Note**: The `Label` tag and its `Key` attribute are case sensitive. That is, if you use `label` instead of `Label` or `key` instead of `Key`, they will be silently ignored.
+
 #### Property Manager
 
 Set Labels with the property manager API to overwrite and add labels, while your service is running.
@@ -96,11 +98,12 @@ Labels, set through extensions or the property manager, can be used on services
 
 | Label                                                      | Description                                                                                                                                                                                                               |
 |------------------------------------------------------------|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
-| `traefik.enable=false`                                     | Disable this container in Traefik                                                                                                                                                                                          |
+| `traefik.enable=false`                                     | Disable this container in Traefik                                                                                                                                                                                         |
 | `traefik.backend.circuitbreaker.expression=EXPR`           | Create a [circuit breaker](/basics/#backends) to be used against the backend                                                                                                                                              |
-| `traefik.servicefabric.groupname`                               | Group all services with the same name into a single backend in Traefik                                                                                                                                                     |
-| `traefik.servicefabric.groupweight`                             | Set the weighting of the current services nodes in the backend group                                                                                                                                                      |
-| `traefik.servicefabric.enablelabeloverrides`                             | Toggle whether labels can be overridden using the Service Fabric Property Manager API                                                                                                                                                      |
+| `traefik.servicefabric.groupname`                          | Group all services with the same name into a single backend in Traefik                                                                                                                                                    |
+| `traefik.servicefabric.groupweight`                        | Set the weighting of the current services nodes in the backend group                                                                                                                                                      |
+| `traefik.servicefabric.enablelabeloverrides`               | Toggle whether labels can be overridden using the Service Fabric Property Manager API                                                                                                                                     |
+| `traefik.servicefabric.endpointname`                       | Specify the name of the endpoint                                                                                                                                                                                          |
 | `traefik.backend.healthcheck.path=/health`                 | Enable health check for the backend, hitting the container at `path`.                                                                                                                                                     |
 | `traefik.backend.healthcheck.port=8080`                    | Allow to use a different port for the health check.                                                                                                                                                                       |
 | `traefik.backend.healthcheck.interval=1s`                  | Define the health check interval.                                                                                                                                                                                         |

docs/configuration/commons.md

@@ -249,8 +249,13 @@ Multiple sets of rates can be added to each frontend, but the time periods must
 ```
 
 In the above example, frontend1 is configured to limit requests by the client's ip address.  
-An average of 5 requests every 3 seconds is allowed and an average of 100 requests every 10 seconds.  
-These can "burst" up to 10 and 200 in each period respectively.
+An average of 100 requests every 10 seconds is allowed and an average of 5 requests every 3 seconds.  
+These can "burst" up to 200 and 10 in each period respectively. 
+
+Valid values for `extractorfunc` are:
+  * `client.ip`
+  * `request.host`
+  * `request.header.<header name>`
 
 ## Buffering
 
@@ -528,3 +533,40 @@ Example:
   backend = "{{$backend}}"
 {{end}}
 ```
+
+## Pass TLS Client Cert
+
+```toml
+# Pass the escaped client cert infos selected below in a `X-Forwarded-Ssl-Client-Cert-Infos` header.
+[frontends.frontend1.passTLSClientCert]
+        pem = true
+        [frontends.frontend1.passTLSClientCert.infos]
+            notBefore = true
+            notAfter = true
+            [frontends.frontend1.passTLSClientCert.infos.subject]
+                country = true
+                domainComponent = true
+                province = true
+                locality = true
+                organization = true
+                commonName = true
+                serialNumber = true
+            [frontends.frontend1.passTLSClientCert.infos.issuer]
+                country = true
+                domainComponent = true
+                province = true
+                locality = true
+                organization = true
+                commonName = true
+                serialNumber = true
+```
+
+Pass TLS Client Cert `pem` defines if the escaped pem is added to a `X-Forwarded-Ssl-Client-Cert` header.  
+Pass TLS Client Cert `infos` defines how the certificate data are added to a `X-Forwarded-Ssl-Client-Cert-Infos` header.  
+
+The following example shows an unescaped result that uses all the available fields:
+If there are more than one certificate, they are separated by a `;`
+
+```
+Subject="DC=org,DC=cheese,C=FR,C=US,ST=Cheese org state,ST=Cheese com state,L=TOULOUSE,L=LYON,O=Cheese,O=Cheese 2,CN=*.cheese.com",Issuer="DC=org,DC=cheese,C=FR,C=US,ST=Signing State,ST=Signing State 2,L=TOULOUSE,L=LYON,O=Cheese,O=Cheese 2,CN=Simple Signing CA 2",NB=1544094616,NA=1607166616,SAN=*.cheese.org,*.cheese.net,*.cheese.com,test@cheese.org,test@cheese.net,10.0.1.0,10.0.1.2
+```

docs/configuration/entrypoints.md

@@ -93,7 +93,7 @@ For more information about the CLI, see the documentation about [Traefik command
     Whitespace is used as option separator and `,` is used as value separator for the list.  
     The names of the options are case-insensitive.
 
-In compose file the entrypoint syntax is different:
+In compose file the entrypoint syntax is different. Notice how quotes are used:
 
 ```yaml
 traefik:
@@ -235,8 +235,10 @@ If you need to add or remove TLS certificates while Traefik is started, Dynamic
 ## TLS Mutual Authentication
 
 TLS Mutual Authentication can be `optional` or not.
-If it's `optional`, Traefik will authorize connection with certificates not signed by a specified Certificate Authority (CA).
-Otherwise, Traefik will only accept clients that present a certificate signed by a specified Certificate Authority (CA).
+
+* If `optional = true`, if a certificate is provided, verifies if it is signed by a specified Certificate Authority (CA). Otherwise proceeds without any certificate.
+* If `optional = false`, Traefik will only accept clients that present a certificate signed by a specified Certificate Authority (CA).
+
 `ClientCAFiles` can be configured with multiple `CA:s` in the same file or use multiple files containing one or several `CA:s`.
 The `CA:s` has to be in PEM format.
 

docs/configuration/logs.md

@@ -39,7 +39,7 @@ logLevel = "INFO"
 
 For more information about the CLI, see the documentation about [Traefik command](/basics/#traefik).
 
-```shell
+```bash
 --logLevel="DEBUG"
 --traefikLog.filePath="/path/to/traefik.log"
 --traefikLog.format="json"
@@ -54,7 +54,6 @@ For more information about the CLI, see the documentation about [Traefik command
 --accessLog.fields.headers.names="User-Agent=redact Authorization=drop Content-Type=keep"
 ```
 
-
 ## Traefik Logs
 
 By default the Traefik log is written to stdout in text format.
@@ -66,7 +65,7 @@ To write the logs into a log file specify the `filePath`:
   filePath = "/path/to/traefik.log"
 ```
 
-To write JSON format logs, specify `json` as the format:
+To switch to JSON format instead of standard format (`common`), specify `json` as the format:
 
 ```toml
 [traefikLog]
@@ -74,7 +73,6 @@ To write JSON format logs, specify `json` as the format:
   format   = "json"
 ```
 
-
 Deprecated way (before 1.4):
 
 !!! danger "DEPRECATED"
@@ -105,13 +103,12 @@ To customize the log level:
 logLevel = "ERROR"
 ```
 
-
 ## Access Logs
 
-Access logs are written when `[accessLog]` is defined.
-By default it will write to stdout and produce logs in the textual Common Log Format (CLF), extended with additional fields.
+Access logs are written when the entry `[accessLog]` is defined (or the command line flag `--accesslog`).
+By default it writes to stdout and produces logs in the textual [Common Log Format (CLF)](#clf-common-log-format), extended with additional fields.
 
-To enable access logs using the default settings just add the `[accessLog]` entry:
+To enable access logs using the default settings, add the `[accessLog]` entry in your `traefik.toml` configuration file:
 
 ```toml
 [accessLog]
@@ -124,12 +121,12 @@ To write the logs into a log file specify the `filePath`:
 filePath = "/path/to/access.log"
 ```
 
-To write JSON format logs, specify `json` as the format:
+To switch to JSON format instead of [Common Log Format (CLF)](#clf-common-log-format), specify `json` as the format:
 
 ```toml
 [accessLog]
 filePath = "/path/to/access.log"
-format = "json"
+format = "json"  # Default: "common"
 ```
 
 To write the logs in async, specify `bufferingSize` as the format (must be >0):
@@ -152,7 +149,7 @@ To filter logs you can specify a set of filters which are logically "OR-connecte
 ```toml
 [accessLog]
 filePath = "/path/to/access.log"
-format = "json"
+format = "json"  # Default: "common"
 
   [accessLog.filters]
 
@@ -178,22 +175,42 @@ format = "json"
   minDuration = "10ms"
 ```
 
-To customize logs format:
+### CLF - Common Log Format
+
+By default, Traefik use the CLF (`common`) as access log format.
+
+```html
+<remote_IP_address> - <client_user_name_if_available> [<timestamp>] "<request_method> <request_path> <request_protocol>" <origin_server_HTTP_status> <origin_server_content_size> "<request_referrer>" "<request_user_agent>" <number_of_requests_received_since_Traefik_started> "<Traefik_frontend_name>" "<Traefik_backend_URL>" <request_duration_in_ms>ms
+```
+
+### Customize Fields
+
+You can customize the fields written in the access logs.
+The list of available fields is found below: [List of All Available Fields](#list-of-all-available-fields).
+
+Each field has a "mode" which defines if it is written or not in the access log lines.
+The possible values for the mode are:
+
+* `keep`: the field and its value are written on the access log line. This is the default behavior.
+* `drop`: the field is not written at all on the access log.
+
+To customize the fields, you must:
+
+* Switch to the JSON format (mandatory)
+* Define the "default mode" for all fields (default is `keep`)
+* OR Define the fields which does not follow the default mode
 
 ```toml
 [accessLog]
-filePath = "/path/to/access.log"
+# Access Log Format
+#
+# Optional
+# Default: "common"
+#
+# Accepted values "common", "json"
+#
 format = "json"
 
-  [accessLog.filters]
-
-  # statusCodes keep only access logs with status codes in the specified range
-  #
-  # Optional
-  # Default: []
-  #
-  statusCodes = ["200", "300-302"]
-
   [accessLog.fields]
 
   # defaultMode
@@ -209,6 +226,43 @@ format = "json"
   [accessLog.fields.names]
     "ClientUsername" = "drop"
     # ...
+```
+
+### Customize Headers
+
+Access logs prints the headers of each request, as fields of the access log line.
+You can customize which and how the headers are printed, likewise the other fields (see ["Customize Fields" section](#customize-fields)).
+
+Each header has a "mode" which defines how it is written in the access log lines.
+The possible values for the mode are:
+
+* `keep`: the header and its value are written on the access log line. This is the default behavior.
+* `drop`: the header is not written at all on the access log.
+* `redacted`: the header is written, but its value is redacted to avoid leaking sensitive information.
+
+To customize the headers, you must:
+
+* Switch to the JSON format (mandatory)
+* Define the "default mode" for all headers (default is `keep`)
+* OR Define the headers which does not follow the default mode
+
+!!! important
+    The headers are written with the prefix `request_` in the access log.
+    This prefix must not be included when specifying a header in the TOML configuration.
+
+    * Do: `"User-Agent" = "drop"`
+    * Don't: `"redacted_User-Agent" = "drop"`
+
+```toml
+[accessLog]
+# Access Log Format
+#
+# Optional
+# Default: "common"
+#
+# Accepted values "common", "json"
+#
+format = "json"
 
   [accessLog.fields.headers]
     # defaultMode
@@ -227,41 +281,42 @@ format = "json"
       # ...
 ```
 
+### List of All Available Fields
 
-### List of all available fields
+| Field                   | Description                                                                                                                                                         |
+|-------------------------|---------------------------------------------------------------------------------------------------------------------------------------------------------------------|
+| `StartUTC`              | The time at which request processing started.                                                                                                                       |
+| `StartLocal`            | The local time at which request processing started.                                                                                                                 |
+| `Duration`              | The total time taken by processing the response, including the origin server's time but not the log writing time.                                                   |
+| `FrontendName`          | The name of the Traefik frontend.                                                                                                                                   |
+| `BackendName`           | The name of the Traefik backend.                                                                                                                                    |
+| `BackendURL`            | The URL of the Traefik backend.                                                                                                                                     |
+| `BackendAddr`           | The IP:port of the Traefik backend (extracted from `BackendURL`)                                                                                                    |
+| `ClientAddr`            | The remote address in its original form (usually IP:port).                                                                                                          |
+| `ClientHost`            | The remote IP address from which the client request was received.                                                                                                   |
+| `ClientPort`            | The remote TCP port from which the client request was received.                                                                                                     |
+| `ClientUsername`        | The username provided in the URL, if present.                                                                                                                       |
+| `RequestAddr`           | The HTTP Host header (usually IP:port). This is treated as not a header by the Go API.                                                                              |
+| `RequestHost`           | The HTTP Host server name (not including port).                                                                                                                     |
+| `RequestPort`           | The TCP port from the HTTP Host.                                                                                                                                    |
+| `RequestMethod`         | The HTTP method.                                                                                                                                                    |
+| `RequestPath`           | The HTTP request URI, not including the scheme, host or port.                                                                                                       |
+| `RequestProtocol`       | The version of HTTP requested.                                                                                                                                      |
+| `RequestLine`           | `RequestMethod` + `RequestPath` + `RequestProtocol`                                                                                                                 |
+| `RequestContentSize`    | The number of bytes in the request entity (a.k.a. body) sent by the client.                                                                                         |
+| `OriginDuration`        | The time taken by the origin server ('upstream') to return its response.                                                                                            |
+| `OriginContentSize`     | The content length specified by the origin server, or 0 if unspecified.                                                                                             |
+| `OriginStatus`          | The HTTP status code returned by the origin server. If the request was handled by this Traefik instance (e.g. with a redirect), then this value will be absent.     |
+| `OriginStatusLine`      | `OriginStatus` + Status code explanation                                                                                                                            |
+| `DownstreamStatus`      | The HTTP status code returned to the client.                                                                                                                        |
+| `DownstreamStatusLine`  | `DownstreamStatus` + Status code explanation                                                                                                                        |
+| `DownstreamContentSize` | The number of bytes in the response entity returned to the client. This is in addition to the "Content-Length" header, which may be present in the origin response. |
+| `RequestCount`          | The number of requests received since the Traefik instance started.                                                                                                 |
+| `GzipRatio`             | The response body compression ratio achieved.                                                                                                                       |
+| `Overhead`              | The processing time overhead caused by Traefik.                                                                                                                     |
+| `RetryAttempts`         | The amount of attempts the request was retried.                                                                                                                     |
 
-```ini
-StartUTC
-StartLocal
-Duration
-FrontendName
-BackendName
-BackendURL
-BackendAddr
-ClientAddr
-ClientHost
-ClientPort
-ClientUsername
-RequestAddr
-RequestHost
-RequestPort
-RequestMethod
-RequestPath
-RequestProtocol
-RequestLine
-RequestContentSize
-OriginDuration
-OriginContentSize
-OriginStatus
-OriginStatusLine
-DownstreamStatus
-DownstreamStatusLine
-DownstreamContentSize
-RequestCount
-GzipRatio
-Overhead
-RetryAttempts
-```
+### Depreciation Notice
 
 Deprecated way (before 1.4):
 
@@ -276,15 +331,6 @@ Deprecated way (before 1.4):
 accessLogsFile = "log/access.log"
 ```
 
-### CLF - Common Log Format
-
-By default, Traefik use the CLF (`common`) as access log format.
-
-```html
-<remote_IP_address> - <client_user_name_if_available> [<timestamp>] "<request_method> <request_path> <request_protocol>" <origin_server_HTTP_status> <origin_server_content_size> "<request_referrer>" "<request_user_agent>" <number_of_requests_received_since_Traefik_started> "<Traefik_frontend_name>" "<Traefik_backend_URL>" <request_duration_in_ms>ms 
-```
-
-
 ## Log Rotation
 
 Traefik will close and reopen its log files, assuming they're configured, on receipt of a USR1 signal.
@@ -292,3 +338,34 @@ This allows the logs to be rotated and processed by an external program, such as
 
 !!! note
     This does not work on Windows due to the lack of USR signals.
+
+## Time Zones
+
+The timestamp of each log line is in UTC time by default.
+
+If you want to use local timezone, you need to ensure the 3 following elements:
+
+1. Provide the timezone data into /usr/share/zoneinfo
+2. Set the environement variable TZ to the timezone to be used
+3. Specify the field StartLocal instead of StartUTC (works on default Common Log Format (CLF) as well as JSON)
+
+Example using docker-compose:
+
+```yml
+version: '3'
+
+services:
+  traefik:
+    image: containous/traefik:[latest stable version]
+    ports:
+      - "80:80"
+    environment:
+      - "TZ=US/Alaska"
+    command:
+      - --docker
+      - --accesslog
+      - --accesslog.fields.names="StartUTC=drop"
+    volumes:
+      - "/var/run/docker.sock:/var/run/docker.sock"
+      - "/usr/share/zoneinfo:/usr/share/zoneinfo:ro"
+```

docs/configuration/metrics.md

@@ -20,7 +20,7 @@
     # Buckets for latency metrics
     #
     # Optional
-    # Default: [0.1, 0.3, 1.2, 5]
+    # Default: [0.1, 0.3, 1.2, 5.0]
     #
     buckets = [0.1,0.3,1.2,5.0]
 

docs/configuration/ping.md

@@ -30,7 +30,7 @@ Thus, if you have a regular path for `/foo` and an entrypoint on `:80`, you woul
 * Admin panel: `http://hostname:8080/`
 * Ping URL: `http://hostname:8080/ping`
 
-However, for security reasons, you may want to be able to expose the `/ping` health-check URL to outside health-checkers, e.g. an Internet service or cloud load-balancer, _without_ exposing your administration panel's port.
+However, for security reasons, you may want to be able to expose the `/ping` health-check URL to outside health-checkers, e.g. an Internet service or cloud load-balancer, _without_ exposing your dashboard's port.
 In many environments, the security staff may not _allow_ you to expose it.
 
 You have two options:
@@ -40,7 +40,7 @@ You have two options:
 
 ### Ping health check on a regular entry point
 
-To proxy `/ping` from a regular entry point to the administration one without exposing the panel, do the following:
+To proxy `/ping` from a regular entry point to the administration one without exposing the dashboard, do the following:
 
 ```toml
 defaultEntryPoints = ["http"]

docs/configuration/tracing.md

@@ -58,6 +58,13 @@ Traefik supports three tracing backends: Jaeger, Zipkin and DataDog.
     # Default: "127.0.0.1:6831"
     #
     localAgentHostPort = "127.0.0.1:6831"
+    
+    # Trace Context Header Name is the http header name used to propagate tracing context.
+    # This must be in lower-case to avoid mismatches when decoding incoming headers.
+    #
+    # Default: "uber-trace-id"
+    #
+    traceContextHeaderName = "uber-trace-id"
 ```
 
 !!! warning
@@ -156,4 +163,10 @@ Traefik supports three tracing backends: Jaeger, Zipkin and DataDog.
     #
     globalTag = ""
 
+    # Enable priority sampling. When using distributed tracing, this option must be enabled in order
+    # to get all the parts of a distributed trace sampled.
+    #
+    # Default: false
+    #
+    prioritySampling = false
 ```

docs/index.md

@@ -6,7 +6,7 @@
 [![Docs](https://img.shields.io/badge/docs-current-brightgreen.svg)](/)
 [![Go Report Card](https://goreportcard.com/badge/github.com/containous/traefik)](https://goreportcard.com/report/github.com/containous/traefik)
 [![License](https://img.shields.io/badge/license-MIT-blue.svg)](https://github.com/containous/traefik/blob/master/LICENSE.md)
-[![Join the chat at https://slack.traefik.io](https://img.shields.io/badge/style-register-green.svg?style=social&label=Slack)](https://slack.traefik.io)
+[![Join the community support forum at https://community.containo.us/](https://img.shields.io/badge/style-register-green.svg?style=social&label=Discourse)](https://community.containo.us/)
 [![Twitter](https://img.shields.io/twitter/follow/traefik.svg?style=social)](https://twitter.com/intent/follow?screen_name=traefik)
 
 
@@ -66,7 +66,7 @@ _(But if you'd rather configure some of your routes manually, Traefik supports t
 
 In this quickstart, we'll use [Docker compose](https://docs.docker.com/compose) to create our demo infrastructure.
 
-To save some time, you can clone [Traefik's repository](https://github.com/containous/traefik) and use the quickstart files located in the [examples/quickstart](https://github.com/containous/traefik/tree/master/examples/quickstart/) directory.
+To save some time, you can clone [Traefik's repository](https://github.com/containous/traefik) and use the quickstart files located in the [examples/quickstart](https://github.com/containous/traefik/tree/v1.7/examples/quickstart/) directory.
 
 ### 1 — Launch Traefik — Tell It to Listen to Docker
 
@@ -176,7 +176,7 @@ Our recommendation would be to see for yourself how simple it is to enable HTTPS
 
 ## Resources
 
-Here is a talk given by [Emile Vauge](https://github.com/emilevauge) at [GopherCon 2017](https://gophercon.com).
+Here is a talk given by [Emile Vauge](https://github.com/emilevauge) at GopherCon 2017.
 You will learn Traefik basics in less than 10 minutes.
 
 [![Traefik GopherCon 2017](https://img.youtube.com/vi/RgudiksfL-k/0.jpg)](https://www.youtube.com/watch?v=RgudiksfL-k)
@@ -190,7 +190,7 @@ You will learn fundamental Traefik features and see some demos with Kubernetes.
 
 ### The Official Binary File
 
-You can grab the latest binary from the [releases](https://github.com/containous/traefik/releases) page and just run it with the [sample configuration file](https://raw.githubusercontent.com/containous/traefik/master/traefik.sample.toml):
+You can grab the latest binary from the [releases](https://github.com/containous/traefik/releases) page and just run it with the [sample configuration file](https://raw.githubusercontent.com/containous/traefik/v1.7/traefik.sample.toml):
 
 ```shell
 ./traefik -c traefik.toml

docs/theme/partials/footer.html

@@ -88,9 +88,9 @@
                 </div>
                 {% endif %}
                 powered by
-                <a href="http://www.mkdocs.org" title="MkDocs">MkDocs</a>
+                <a href="https://www.mkdocs.org" title="MkDocs">MkDocs</a>
                 and
-                <a href="http://squidfunk.github.io/mkdocs-material/"
+                <a href="https://squidfunk.github.io/mkdocs-material/"
                    title="Material for MkDocs">
                     Material for MkDocs</a>
             </div>

docs/user-guide/cluster-docker-consul.md

@@ -91,7 +91,7 @@ To watch docker events, add `--docker.watch`.
 version: "3"
 services:
   traefik:
-    image: traefik:1.5
+    image: traefik:<stable version from https://hub.docker.com/_/traefik>
     command:
       - "--api"
       - "--entrypoints=Name:http Address::80 Redirect.EntryPoint:https"
@@ -156,7 +156,7 @@ The initializer in a docker-compose file will be:
 
 ```yaml
   traefik_init:
-    image: traefik:1.5
+    image: traefik:<stable version from https://hub.docker.com/_/traefik>
     command:
       - "storeconfig"
       - "--api"
@@ -177,7 +177,7 @@ And now, the Traefik part will only have the Consul configuration.
 
 ```yaml
   traefik:
-    image: traefik:1.5
+    image: traefik:<stable version from https://hub.docker.com/_/traefik>
     depends_on:
       - traefik_init
       - consul
@@ -200,7 +200,7 @@ The new configuration will be stored in Consul, and you need to restart the Trae
 version: "3.4"
 services:
   traefik_init:
-    image: traefik:1.5
+    image: traefik:<stable version from https://hub.docker.com/_/traefik>
     command:
       - "storeconfig"
       - "--api"
@@ -229,7 +229,7 @@ services:
     depends_on:
       - consul
   traefik:
-    image: traefik:1.5
+    image: traefik:<stable version from https://hub.docker.com/_/traefik>
     depends_on:
       - traefik_init
       - consul

docs/user-guide/docker-and-lets-encrypt.md

@@ -50,7 +50,7 @@ version: '2'
 
 services:
   traefik:
-    image: traefik:1.5.4
+    image: traefik:<stable version from https://hub.docker.com/_/traefik>
     restart: always
     ports:
       - 80:80
@@ -108,6 +108,28 @@ onHostRule = true
 entryPoint = "http"
 ```
 
+Alternatively, the `TOML` file above can also be translated into command line switches. 
+This is the `command` value of the `traefik` service in the `docker-compose.yml` manifest:
+
+```yaml
+command:
+  - --debug=false
+  - --logLevel=ERROR
+  - --defaultentrypoints=https,http
+  - --entryPoints=Name:http Address::80 Redirect.EntryPoint:https
+  - --entryPoints=Name:https Address::443 TLS
+  - --retry
+  - --docker.endpoint=unix:///var/run/docker.sock
+  - --docker.domain=my-awesome-app.org
+  - --docker.watch=true
+  - --docker.exposedbydefault=false
+  - --acme.email=your-email-here@my-awesome-app.org
+  - --acme.storage=acme.json
+  - --acme.entryPoint=https
+  - --acme.onHostRule=true
+  - --acme.httpchallenge.entrypoint=http
+```
+
 This is the minimum configuration required to do the following:
 
 - Log `ERROR`-level messages (or more severe) to the console, but silence `DEBUG`-level messages

docs/user-guide/examples.md

@@ -336,37 +336,37 @@ Pay attention to the **labels** section:
 
 ```
 home:
-image: abiosoft/caddy:0.10.14
-networks:
-  - ntw_front
-volumes:
-  - ./www/home/srv/:/srv/
-deploy:
-  mode: replicated
-  replicas: 2
-  #placement:
-  #  constraints: [node.role==manager]
-  restart_policy:
-    condition: on-failure
-    max_attempts: 5
-  resources:
-    limits:
-      cpus: '0.20'
-      memory: 9M
-    reservations:
-      cpus: '0.05'
-      memory: 9M
-  labels:
-  - "traefik.frontend.rule=PathPrefixStrip:/"
-  - "traefik.backend=home"
-  - "traefik.port=2015"
-  - "traefik.weight=10"
-  - "traefik.enable=true"
-  - "traefik.passHostHeader=true"
-  - "traefik.docker.network=ntw_front"
-  - "traefik.frontend.entryPoints=http"
-  - "traefik.backend.loadbalancer.swarm=true"
-  - "traefik.backend.loadbalancer.method=drr"
+  image: abiosoft/caddy:0.10.14
+  networks:
+    - ntw_front
+  volumes:
+    - ./www/home/srv/:/srv/
+  deploy:
+    mode: replicated
+    replicas: 2
+    #placement:
+    #  constraints: [node.role==manager]
+    restart_policy:
+      condition: on-failure
+      max_attempts: 5
+    resources:
+      limits:
+        cpus: '0.20'
+        memory: 9M
+      reservations:
+        cpus: '0.05'
+        memory: 9M
+    labels:
+      - "traefik.frontend.rule=PathPrefixStrip:/"
+      - "traefik.backend=home"
+      - "traefik.port=2015"
+      - "traefik.weight=10"
+      - "traefik.enable=true"
+      - "traefik.passHostHeader=true"
+      - "traefik.docker.network=ntw_front"
+      - "traefik.frontend.entryPoints=http"
+      - "traefik.backend.loadbalancer.swarm=true"
+      - "traefik.backend.loadbalancer.method=drr"
 ```
 
 Something more tricky using `regex`.
@@ -377,39 +377,39 @@ The double sign `$$` are variables managed by the docker compose file ([document
 
 ```
 portainer:
-image: portainer/portainer:1.16.5
-networks:
-  - ntw_front
-volumes:
-  - /var/run/docker.sock:/var/run/docker.sock
-deploy:
-  mode: replicated
-  replicas: 1
-  placement:
-    constraints: [node.role==manager]
-  restart_policy:
-    condition: on-failure
-    max_attempts: 5
-  resources:
-    limits:
-      cpus: '0.33'
-      memory: 20M
-    reservations:
-      cpus: '0.05'
-      memory: 10M
-  labels:
-    - "traefik.frontend.rule=PathPrefixStrip:/portainer"
-    - "traefik.backend=portainer"
-    - "traefik.port=9000"
-    - "traefik.weight=10"
-    - "traefik.enable=true"
-    - "traefik.passHostHeader=true"
-    - "traefik.docker.network=ntw_front"
-    - "traefik.frontend.entryPoints=http"
-    - "traefik.backend.loadbalancer.swarm=true"
-    - "traefik.backend.loadbalancer.method=drr"
-    # https://github.com/containous/traefik/issues/563#issuecomment-421360934
-    - "traefik.frontend.redirect.regex=^(.*)/portainer$$"
-    - "traefik.frontend.redirect.replacement=$$1/portainer/"
-    - "traefik.frontend.rule=PathPrefix:/portainer;ReplacePathRegex: ^/portainer/(.*) /$$1"
+  image: portainer/portainer:1.16.5
+  networks:
+    - ntw_front
+  volumes:
+    - /var/run/docker.sock:/var/run/docker.sock
+  deploy:
+    mode: replicated
+    replicas: 1
+    placement:
+      constraints: [node.role==manager]
+    restart_policy:
+      condition: on-failure
+      max_attempts: 5
+    resources:
+      limits:
+        cpus: '0.33'
+        memory: 20M
+      reservations:
+        cpus: '0.05'
+        memory: 10M
+    labels:
+      - "traefik.frontend.rule=PathPrefixStrip:/portainer"
+      - "traefik.backend=portainer"
+      - "traefik.port=9000"
+      - "traefik.weight=10"
+      - "traefik.enable=true"
+      - "traefik.passHostHeader=true"
+      - "traefik.docker.network=ntw_front"
+      - "traefik.frontend.entryPoints=http"
+      - "traefik.backend.loadbalancer.swarm=true"
+      - "traefik.backend.loadbalancer.method=drr"
+      # https://github.com/containous/traefik/issues/563#issuecomment-421360934
+      - "traefik.frontend.redirect.regex=^(.*)/portainer$$"
+      - "traefik.frontend.redirect.replacement=$$1/portainer/"
+      - "traefik.frontend.rule=PathPrefix:/portainer;ReplacePathRegex: ^/portainer/(.*) /$$1"
 ```

docs/user-guide/grpc.md

@@ -14,7 +14,6 @@ defaultEntryPoints = ["https"]
 [entryPoints]
   [entryPoints.http]
   address = ":80"
-    [entryPoints.http]
 
 [api]
 

docs/user-guide/kubernetes.md

@@ -4,7 +4,7 @@ This guide explains how to use Traefik as an Ingress controller for a Kubernetes
 
 If you are not familiar with Ingresses in Kubernetes you might want to read the [Kubernetes user guide](https://kubernetes.io/docs/concepts/services-networking/ingress/)
 
-The config files used in this guide can be found in the [examples directory](https://github.com/containous/traefik/tree/master/examples/k8s)
+The config files used in this guide can be found in the [examples directory](https://github.com/containous/traefik/tree/v1.7/examples/k8s)
 
 ## Prerequisites
 
@@ -68,10 +68,10 @@ subjects:
   namespace: kube-system
 ```
 
-[examples/k8s/traefik-rbac.yaml](https://github.com/containous/traefik/tree/master/examples/k8s/traefik-rbac.yaml)
+[examples/k8s/traefik-rbac.yaml](https://github.com/containous/traefik/tree/v1.7/examples/k8s/traefik-rbac.yaml)
 
 ```shell
-kubectl apply -f https://raw.githubusercontent.com/containous/traefik/master/examples/k8s/traefik-rbac.yaml
+kubectl apply -f https://raw.githubusercontent.com/containous/traefik/v1.7/examples/k8s/traefik-rbac.yaml
 ```
 
 For namespaced restrictions, one RoleBinding is required per watched namespace along with a corresponding configuration of Traefik's `kubernetes.namespaces` parameter.
@@ -148,7 +148,7 @@ spec:
   type: NodePort
 ```
 
-[examples/k8s/traefik-deployment.yaml](https://github.com/containous/traefik/tree/master/examples/k8s/traefik-deployment.yaml)
+[examples/k8s/traefik-deployment.yaml](https://github.com/containous/traefik/tree/v1.7/examples/k8s/traefik-deployment.yaml)
 
 !!! note
     The Service will expose two NodePorts which allow access to the ingress and the web interface.
@@ -216,7 +216,7 @@ spec:
       name: admin
 ```
 
-[examples/k8s/traefik-ds.yaml](https://github.com/containous/traefik/tree/master/examples/k8s/traefik-ds.yaml)
+[examples/k8s/traefik-ds.yaml](https://github.com/containous/traefik/tree/v1.7/examples/k8s/traefik-ds.yaml)
 
 !!! note
     This will create a Daemonset that uses privileged ports 80/8080 on the host. This may not work on all providers, but illustrates the static (non-NodePort) hostPort binding. The `traefik-ingress-service` can still be used inside the cluster to access the DaemonSet pods.
@@ -224,11 +224,11 @@ spec:
 To deploy Traefik to your cluster start by submitting one of the YAML files to the cluster with `kubectl`:
 
 ```shell
-kubectl apply -f https://raw.githubusercontent.com/containous/traefik/master/examples/k8s/traefik-deployment.yaml
+kubectl apply -f https://raw.githubusercontent.com/containous/traefik/v1.7/examples/k8s/traefik-deployment.yaml
 ```
 
 ```shell
-kubectl apply -f https://raw.githubusercontent.com/containous/traefik/master/examples/k8s/traefik-ds.yaml
+kubectl apply -f https://raw.githubusercontent.com/containous/traefik/v1.7/examples/k8s/traefik-ds.yaml
 ```
 
 There are some significant differences between using Deployments and DaemonSets:
@@ -352,10 +352,10 @@ spec:
           servicePort: web
 ```
 
-[examples/k8s/ui.yaml](https://github.com/containous/traefik/tree/master/examples/k8s/ui.yaml)
+[examples/k8s/ui.yaml](https://github.com/containous/traefik/tree/v1.7/examples/k8s/ui.yaml)
 
 ```shell
-kubectl apply -f https://raw.githubusercontent.com/containous/traefik/master/examples/k8s/ui.yaml
+kubectl apply -f https://raw.githubusercontent.com/containous/traefik/v1.7/examples/k8s/ui.yaml
 ```
 
 Now lets setup an entry in our `/etc/hosts` file to route `traefik-ui.minikube` to our cluster.
@@ -375,6 +375,14 @@ We should now be able to visit [traefik-ui.minikube](http://traefik-ui.minikube)
     For this example to work you need a TLS entrypoint. You don't have to provide a TLS certificate at this point.
     For more details see [here](/configuration/entrypoints/).
 
+You can add a TLS entrypoint by adding the following `args` to the container spec:
+
+```yaml
+ --defaultentrypoints=http,https
+ --entrypoints=Name:https Address::443 TLS
+ --entrypoints=Name:http Address::80
+```
+    
 To setup an HTTPS-protected ingress, you can leverage the TLS feature of the ingress resource.
 
 ```yaml
@@ -573,10 +581,10 @@ spec:
         - containerPort: 80
 ```
 
-[examples/k8s/cheese-deployments.yaml](https://github.com/containous/traefik/tree/master/examples/k8s/cheese-deployments.yaml)
+[examples/k8s/cheese-deployments.yaml](https://github.com/containous/traefik/tree/v1.7/examples/k8s/cheese-deployments.yaml)
 
 ```shell
-kubectl apply -f https://raw.githubusercontent.com/containous/traefik/master/examples/k8s/cheese-deployments.yaml
+kubectl apply -f https://raw.githubusercontent.com/containous/traefik/v1.7/examples/k8s/cheese-deployments.yaml
 ```
 
 Next we need to setup a Service for each of the cheese pods.
@@ -628,10 +636,10 @@ spec:
 !!! note
     We also set a [circuit breaker expression](/basics/#backends) for one of the backends by setting the `traefik.backend.circuitbreaker` annotation on the service.
 
-[examples/k8s/cheese-services.yaml](https://github.com/containous/traefik/tree/master/examples/k8s/cheese-services.yaml)
+[examples/k8s/cheese-services.yaml](https://github.com/containous/traefik/tree/v1.7/examples/k8s/cheese-services.yaml)
 
 ```shell
-kubectl apply -f https://raw.githubusercontent.com/containous/traefik/master/examples/k8s/cheese-services.yaml
+kubectl apply -f https://raw.githubusercontent.com/containous/traefik/v1.7/examples/k8s/cheese-services.yaml
 ```
 
 Now we can submit an ingress for the cheese websites.
@@ -668,13 +676,13 @@ spec:
           servicePort: http
 ```
 
-[examples/k8s/cheese-ingress.yaml](https://github.com/containous/traefik/tree/master/examples/k8s/cheese-ingress.yaml)
+[examples/k8s/cheese-ingress.yaml](https://github.com/containous/traefik/tree/v1.7/examples/k8s/cheese-ingress.yaml)
 
 !!! note
-    we list each hostname, and add a backend service.
+    We list each hostname, and add a backend service.
 
 ```shell
-kubectl apply -f https://raw.githubusercontent.com/containous/traefik/master/examples/k8s/cheese-ingress.yaml
+kubectl apply -f https://raw.githubusercontent.com/containous/traefik/v1.7/examples/k8s/cheese-ingress.yaml
 ```
 
 Now visit the [Traefik dashboard](http://traefik-ui.minikube/) and you should see a frontend for each host.
@@ -723,13 +731,13 @@ spec:
           servicePort: http
 ```
 
-[examples/k8s/cheeses-ingress.yaml](https://github.com/containous/traefik/tree/master/examples/k8s/cheeses-ingress.yaml)
+[examples/k8s/cheeses-ingress.yaml](https://github.com/containous/traefik/tree/v1.7/examples/k8s/cheeses-ingress.yaml)
 
 !!! note
     We are configuring Traefik to strip the prefix from the url path with the `traefik.frontend.rule.type` annotation so that we can use the containers from the previous example without modification.
 
 ```shell
-kubectl apply -f https://raw.githubusercontent.com/containous/traefik/master/examples/k8s/cheeses-ingress.yaml
+kubectl apply -f https://raw.githubusercontent.com/containous/traefik/v1.7/examples/k8s/cheeses-ingress.yaml
 ```
 
 ```shell
@@ -775,11 +783,11 @@ Traefik will now look for cheddar service endpoints (ports on healthy pods) in b
 Deploying cheddar into the cheese namespace and afterwards shutting down cheddar in the default namespace is enough to migrate the traffic.
 
 !!! note
-   The kubernetes documentation does not specify this merging behavior.
+    The kubernetes documentation does not specify this merging behavior.
 
 !!! note
-   Merging ingress definitions can cause problems if the annotations differ or if the services handle requests differently.
-   Be careful and extra cautious when running multiple overlapping ingress definitions.
+    Merging ingress definitions can cause problems if the annotations differ or if the services handle requests differently.
+    Be careful and extra cautious when running multiple overlapping ingress definitions.
 
 ## Specifying Routing Priorities
 

docs/user-guide/kv-config.md

@@ -139,7 +139,7 @@ Here is the [docker-compose file](https://docs.docker.com/compose/compose-file/)
 
 ```yaml
 traefik:
-  image: traefik
+  image: traefik:<stable version from https://hub.docker.com/_/traefik>
   command: --consul --consul.endpoint=127.0.0.1:8500
   ports:
     - "80:80"

docs/user-guide/swarm-mode.md

@@ -7,7 +7,7 @@ The cluster consists of:
 - 3 servers
 - 1 manager
 - 2 workers
-- 1 [overlay](https://docs.docker.com/engine/userguide/networking/dockernetworks/#an-overlay-network) network (multi-host networking)
+- 1 [overlay](https://docs.docker.com/network/overlay/) network (multi-host networking)
 
 
 ## Prerequisites
@@ -76,7 +76,7 @@ docker-machine ssh manager "docker network create --driver=overlay traefik-net"
 ## Deploy Traefik
 
 Let's deploy Traefik as a docker service in our cluster.
-The only requirement for Traefik to work with swarm mode is that it needs to run on a manager node - we are going to use a [constraint](https://docs.docker.com/engine/reference/commandline/service_create/#/specify-service-constraints-constraint) for that.
+The only requirement for Traefik to work with swarm mode is that it needs to run on a manager node - we are going to use a [constraint](https://docs.docker.com/engine/reference/commandline/service_create/#specify-service-constraints---constraint) for that.
 
 ```shell
 docker-machine ssh manager "docker service create \
@@ -85,7 +85,7 @@ docker-machine ssh manager "docker service create \
 	--publish 80:80 --publish 8080:8080 \
 	--mount	type=bind,source=/var/run/docker.sock,target=/var/run/docker.sock \
 	--network traefik-net \
-	traefik \
+	traefik:<stable version from https://hub.docker.com/_/traefik> \
 	--docker \
 	--docker.swarmMode \
 	--docker.domain=traefik \

docs/user-guide/swarm.md

@@ -7,7 +7,7 @@ The cluster consists of:
 - 2 servers
 - 1 swarm master
 - 2 swarm nodes
-- 1 [overlay](https://docs.docker.com/engine/userguide/networking/dockernetworks/#an-overlay-network) network (multi-host networking)
+- 1 [overlay](https://docs.docker.com/network/overlay/) network (multi-host networking)
 
 ## Prerequisites
 
@@ -81,7 +81,7 @@ docker $(docker-machine config mhs-demo0) run \
     -p 80:80 -p 8080:8080 \
     --net=my-net \
     -v /var/lib/boot2docker/:/ssl \
-    traefik \
+    traefik:<stable version from https://hub.docker.com/_/traefik> \
     -l DEBUG \
     -c /dev/null \
     --docker \

examples/k8s/traefik-rbac.yaml

@@ -22,6 +22,12 @@ rules:
       - get
       - list
       - watch
+  - apiGroups:
+    - extensions
+    resources:
+    - ingresses/status
+    verbs:
+    - update
 ---
 kind: ClusterRoleBinding
 apiVersion: rbac.authorization.k8s.io/v1beta1

examples/quickstart/README.md

@@ -2,7 +2,7 @@
 
 In this quickstart, we'll use [Docker compose](https://docs.docker.com/compose) to create our demo infrastructure.
 
-To save some time, you can clone [Traefik's repository](https://github.com/containous/traefik) and use the quickstart files located in the [examples/quickstart](https://github.com/containous/traefik/tree/master/examples/quickstart/) directory.
+To save some time, you can clone [Traefik's repository](https://github.com/containous/traefik) and use the quickstart files located in the [examples/quickstart](https://github.com/containous/traefik/tree/v1.7/examples/quickstart/) directory.
 
 ### 1 — Launch Traefik — Tell It to Listen to Docker
 

examples/quickstart/docker-compose.yml

@@ -13,6 +13,6 @@ services:
 
   # A container that exposes a simple API
   whoami:
-    image: emilevauge/whoami  # A container that exposes an API to show it's IP address
+    image: emilevauge/whoami  # A container that exposes an API to show its IP address
     labels:
       - "traefik.frontend.rule=Host:whoami.docker.localhost"

exp.Dockerfile

@@ -0,0 +1,44 @@
+# WEBUI
+FROM node:8.15.0 as webui
+
+ENV WEBUI_DIR /src/webui
+RUN mkdir -p $WEBUI_DIR
+
+COPY ./webui/ $WEBUI_DIR/
+
+WORKDIR $WEBUI_DIR
+RUN yarn install
+
+RUN npm run build
+
+# BUILD
+FROM golang:1.12-alpine as gobuild
+
+RUN apk --update upgrade \
+    && apk --no-cache --no-progress add git mercurial bash gcc musl-dev curl tar ca-certificates tzdata \
+    && update-ca-certificates \
+    && rm -rf /var/cache/apk/*
+
+RUN mkdir -p /usr/local/bin \
+    && curl -fsSL -o /usr/local/bin/go-bindata https://github.com/containous/go-bindata/releases/download/v1.0.0/go-bindata \
+    && chmod +x /usr/local/bin/go-bindata
+
+WORKDIR /go/src/github.com/containous/traefik
+COPY . /go/src/github.com/containous/traefik
+
+RUN rm -rf /go/src/github.com/containous/traefik/static/
+COPY --from=webui /src/static/ /go/src/github.com/containous/traefik/static/
+
+RUN ./script/make.sh generate binary
+
+## IMAGE
+FROM scratch
+
+COPY --from=gobuild /usr/share/zoneinfo /usr/share/zoneinfo
+COPY --from=gobuild /etc/ssl/certs/ca-certificates.crt /etc/ssl/certs/
+COPY --from=gobuild /go/src/github.com/containous/traefik/dist/traefik /
+
+EXPOSE 80
+VOLUME ["/tmp"]
+
+ENTRYPOINT ["/traefik"]

healthcheck/healthcheck.go

@@ -49,17 +49,24 @@ func (opt Options) String() string {
 	return fmt.Sprintf("[Hostname: %s Headers: %v Path: %s Port: %d Interval: %s]", opt.Hostname, opt.Headers, opt.Path, opt.Port, opt.Interval)
 }
 
+type backendURL struct {
+	url    *url.URL
+	weight int
+}
+
 // BackendConfig HealthCheck configuration for a backend
 type BackendConfig struct {
 	Options
 	name           string
-	disabledURLs   []*url.URL
+	disabledURLs   []backendURL
 	requestTimeout time.Duration
 }
 
 func (b *BackendConfig) newRequest(serverURL *url.URL) (*http.Request, error) {
-	u := &url.URL{}
-	*u = *serverURL
+	u, err := serverURL.Parse(b.Path)
+	if err != nil {
+		return nil, err
+	}
 
 	if len(b.Scheme) > 0 {
 		u.Scheme = b.Scheme
@@ -69,8 +76,6 @@ func (b *BackendConfig) newRequest(serverURL *url.URL) (*http.Request, error) {
 		u.Host = net.JoinHostPort(u.Hostname(), strconv.Itoa(b.Port))
 	}
 
-	u.Path += b.Path
-
 	return http.NewRequest(http.MethodGet, u.String(), http.NoBody)
 }
 
@@ -129,18 +134,18 @@ func (hc *HealthCheck) execute(ctx context.Context, backend *BackendConfig) {
 
 func (hc *HealthCheck) checkBackend(backend *BackendConfig) {
 	enabledURLs := backend.LB.Servers()
-	var newDisabledURLs []*url.URL
-	for _, url := range backend.disabledURLs {
+	var newDisabledURLs []backendURL
+	for _, backendurl := range backend.disabledURLs {
 		serverUpMetricValue := float64(0)
-		if err := checkHealth(url, backend); err == nil {
-			log.Warnf("Health check up: Returning to server list. Backend: %q URL: %q", backend.name, url.String())
-			backend.LB.UpsertServer(url, roundrobin.Weight(1))
+		if err := checkHealth(backendurl.url, backend); err == nil {
+			log.Warnf("Health check up: Returning to server list. Backend: %q URL: %q Weight: %d", backend.name, backendurl.url.String(), backendurl.weight)
+			backend.LB.UpsertServer(backendurl.url, roundrobin.Weight(backendurl.weight))
 			serverUpMetricValue = 1
 		} else {
-			log.Warnf("Health check still failing. Backend: %q URL: %q Reason: %s", backend.name, url.String(), err)
-			newDisabledURLs = append(newDisabledURLs, url)
+			log.Warnf("Health check still failing. Backend: %q URL: %q Reason: %s", backend.name, backendurl.url.String(), err)
+			newDisabledURLs = append(newDisabledURLs, backendurl)
 		}
-		labelValues := []string{"backend", backend.name, "url", url.String()}
+		labelValues := []string{"backend", backend.name, "url", backendurl.url.String()}
 		hc.metrics.BackendServerUpGauge().With(labelValues...).Set(serverUpMetricValue)
 	}
 	backend.disabledURLs = newDisabledURLs
@@ -148,9 +153,18 @@ func (hc *HealthCheck) checkBackend(backend *BackendConfig) {
 	for _, url := range enabledURLs {
 		serverUpMetricValue := float64(1)
 		if err := checkHealth(url, backend); err != nil {
-			log.Warnf("Health check failed: Remove from server list. Backend: %q URL: %q Reason: %s", backend.name, url.String(), err)
+			weight := 1
+			rr, ok := backend.LB.(*roundrobin.RoundRobin)
+			if ok {
+				var gotWeight bool
+				weight, gotWeight = rr.ServerWeight(url)
+				if !gotWeight {
+					weight = 1
+				}
+			}
+			log.Warnf("Health check failed: Remove from server list. Backend: %q URL: %q Weight: %d Reason: %s", backend.name, url.String(), weight, err)
 			backend.LB.RemoveServer(url)
-			backend.disabledURLs = append(backend.disabledURLs, url)
+			backend.disabledURLs = append(backend.disabledURLs, backendURL{url, weight})
 			serverUpMetricValue = 0
 		}
 		labelValues := []string{"backend", backend.name, "url", url.String()}

healthcheck/healthcheck_test.go

@@ -112,7 +112,7 @@ func TestSetBackendsConfiguration(t *testing.T) {
 			if test.startHealthy {
 				lb.servers = append(lb.servers, serverURL)
 			} else {
-				backend.disabledURLs = append(backend.disabledURLs, serverURL)
+				backend.disabledURLs = append(backend.disabledURLs, backendURL{serverURL, 1})
 			}
 
 			collectingMetrics := testhelpers.NewCollectingHealthCheckMetrics()
@@ -150,11 +150,16 @@ func TestSetBackendsConfiguration(t *testing.T) {
 }
 
 func TestNewRequest(t *testing.T) {
+	type expected struct {
+		err   bool
+		value string
+	}
+
 	testCases := []struct {
 		desc      string
 		serverURL string
 		options   Options
-		expected  string
+		expected  expected
 	}{
 		{
 			desc:      "no port override",
@@ -163,7 +168,10 @@ func TestNewRequest(t *testing.T) {
 				Path: "/test",
 				Port: 0,
 			},
-			expected: "http://backend1:80/test",
+			expected: expected{
+				err:   false,
+				value: "http://backend1:80/test",
+			},
 		},
 		{
 			desc:      "port override",
@@ -172,7 +180,10 @@ func TestNewRequest(t *testing.T) {
 				Path: "/test",
 				Port: 8080,
 			},
-			expected: "http://backend2:8080/test",
+			expected: expected{
+				err:   false,
+				value: "http://backend2:8080/test",
+			},
 		},
 		{
 			desc:      "no port override with no port in server URL",
@@ -181,7 +192,10 @@ func TestNewRequest(t *testing.T) {
 				Path: "/health",
 				Port: 0,
 			},
-			expected: "http://backend1/health",
+			expected: expected{
+				err:   false,
+				value: "http://backend1/health",
+			},
 		},
 		{
 			desc:      "port override with no port in server URL",
@@ -190,7 +204,10 @@ func TestNewRequest(t *testing.T) {
 				Path: "/health",
 				Port: 8080,
 			},
-			expected: "http://backend2:8080/health",
+			expected: expected{
+				err:   false,
+				value: "http://backend2:8080/health",
+			},
 		},
 		{
 			desc:      "scheme override",
@@ -200,7 +217,46 @@ func TestNewRequest(t *testing.T) {
 				Path:   "/test",
 				Port:   0,
 			},
-			expected: "http://backend1:80/test",
+			expected: expected{
+				err:   false,
+				value: "http://backend1:80/test",
+			},
+		},
+		{
+			desc:      "path with param",
+			serverURL: "http://backend1:80",
+			options: Options{
+				Path: "/health?powpow=do",
+				Port: 0,
+			},
+			expected: expected{
+				err:   false,
+				value: "http://backend1:80/health?powpow=do",
+			},
+		},
+		{
+			desc:      "path with params",
+			serverURL: "http://backend1:80",
+			options: Options{
+				Path: "/health?powpow=do&do=powpow",
+				Port: 0,
+			},
+			expected: expected{
+				err:   false,
+				value: "http://backend1:80/health?powpow=do&do=powpow",
+			},
+		},
+		{
+			desc:      "path with invalid path",
+			serverURL: "http://backend1:80",
+			options: Options{
+				Path: ":",
+				Port: 0,
+			},
+			expected: expected{
+				err:   true,
+				value: "",
+			},
 		},
 	}
 
@@ -211,13 +267,18 @@ func TestNewRequest(t *testing.T) {
 
 			backend := NewBackendConfig(test.options, "backendName")
 
-			u, err := url.Parse(test.serverURL)
-			require.NoError(t, err)
+			u := testhelpers.MustParseURL(test.serverURL)
 
 			req, err := backend.newRequest(u)
-			require.NoError(t, err, "failed to create new backend request")
 
-			assert.Equal(t, test.expected, req.URL.String())
+			if test.expected.err {
+				require.Error(t, err)
+				assert.Nil(t, nil)
+			} else {
+				require.NoError(t, err, "failed to create new backend request")
+				require.NotNil(t, req)
+				assert.Equal(t, test.expected.value, req.URL.String())
+			}
 		})
 	}
 }

integration/etcd3_test.go

@@ -10,7 +10,7 @@ import (
 
 	"github.com/abronan/valkeyrie"
 	"github.com/abronan/valkeyrie/store"
-	"github.com/abronan/valkeyrie/store/etcd/v3"
+	etcdv3 "github.com/abronan/valkeyrie/store/etcd/v3"
 	"github.com/containous/traefik/integration/try"
 	"github.com/go-check/check"
 

integration/fixtures/grpc/config_retry.toml

@@ -0,0 +1,31 @@
+defaultEntryPoints = ["https"]
+
+rootCAs = [ """{{ .CertContent }}""" ]
+
+[retry]
+
+[entryPoints]
+  [entryPoints.https]
+  address = ":4443"
+    [entryPoints.https.tls]
+     [[entryPoints.https.tls.certificates]]
+     certFile = """{{ .CertContent }}"""
+     keyFile  = """{{ .KeyContent }}"""
+
+
+[api]
+
+[file]
+
+[backends]
+  [backends.backend1]
+    [backends.backend1.servers.server1]
+    url = "https://127.0.0.1:{{ .GRPCServerPort }}"
+    weight = 1
+
+
+[frontends]
+  [frontends.frontend1]
+  backend = "backend1"
+    [frontends.frontend1.routes.test_1]
+    rule = "Host:127.0.0.1"

integration/fixtures/https/https_sni_case_insensitive_dynamic.toml

@@ -0,0 +1,37 @@
+logLevel = "DEBUG"
+
+defaultEntryPoints = ["https"]
+
+[entryPoints]
+  [entryPoints.https]
+  address = ":4443"
+    [entryPoints.https.tls]
+     [entryPoints.https.tls.defaultCertificate]
+     certFile = "fixtures/https/wildcard.snitest.com.cert"
+     keyFile = "fixtures/https/wildcard.snitest.com.key"
+
+[api]
+
+[file]
+
+[backends]
+  [backends.backend1]
+    [backends.backend1.servers.server1]
+    url = "http://127.0.0.1:9010"
+    weight = 1
+
+[frontends]
+  [frontends.frontend1]
+  backend = "backend1"
+    [frontends.frontend1.routes.test_1]
+    rule = "HostRegexp: {subdomain:[a-z1-9-]+}.snitest.com"
+  [frontends.frontend2]
+  backend = "backend1"
+    [frontends.frontend2.routes.test_1]
+    rule = "HostRegexp: {subdomain:[a-z1-9-]+}.www.snitest.com"
+
+[[tls]]
+  entryPoints = ["https"]
+  [tls.certificate]
+    certFile = "fixtures/https/uppercase_wildcard.www.snitest.com.cert"
+    keyFile = "fixtures/https/uppercase_wildcard.www.snitest.com.key"

integration/fixtures/https/https_sni_case_insensitive_static.toml

@@ -0,0 +1,34 @@
+logLevel = "DEBUG"
+
+defaultEntryPoints = ["https"]
+
+[entryPoints]
+  [entryPoints.https]
+  address = ":4443"
+    [entryPoints.https.tls]
+     [[entryPoints.https.tls.certificates]]
+     certFile = "fixtures/https/uppercase_wildcard.www.snitest.com.cert"
+     keyFile = "fixtures/https/uppercase_wildcard.www.snitest.com.key"
+     [entryPoints.https.tls.defaultCertificate]
+     certFile = "fixtures/https/wildcard.snitest.com.cert"
+     keyFile = "fixtures/https/wildcard.snitest.com.key"
+
+[api]
+
+[file]
+
+[backends]
+  [backends.backend1]
+    [backends.backend1.servers.server1]
+    url = "http://127.0.0.1:9010"
+    weight = 1
+
+[frontends]
+  [frontends.frontend1]
+  backend = "backend1"
+    [frontends.frontend1.routes.test_1]
+    rule = "HostRegexp: {subdomain:[a-z1-9-]+}.snitest.com"
+  [frontends.frontend2]
+  backend = "backend1"
+    [frontends.frontend2.routes.test_2]
+    rule = "HostRegexp: {subdomain:[a-z1-9-]+}.www.snitest.com"

integration/fixtures/https/uppercase_wildcard.www.snitest.com.cert

@@ -0,0 +1,19 @@
+-----BEGIN CERTIFICATE-----
+MIIDDDCCAfSgAwIBAgIJAI1YpPACcsQnMA0GCSqGSIb3DQEBCwUAMB4xHDAaBgNV
+BAMME0ZPTy5XV1cuU05JVEVTVC5DT00wHhcNMTgxMDI5MTU1NDI4WhcNMjgxMDI2
+MTU1NDI4WjAeMRwwGgYDVQQDDBNGT08uV1dXLlNOSVRFU1QuQ09NMIIBIjANBgkq
+hkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAxyWr+1O/tf4yjwhfp3/SDGT5fD0chhGs
+Qc+QM7Ewb5SOmIL5UskxT5pCKc6Kuie5qqEp9xH8Rrfo18iEJQPdhFC1YkaBEI0L
+l1qvN4jmXzAK/E/u4+X+FFprHyruXCmuXqsWQt/qEOqU1ciN47GE9+ZW4R+q70uB
+zrEQ+dzN7IBsyf1lzzS3/TwDgj085QmiZYxKxX40d5hZW6AHxPEKJa2p+Gweqg74
+SpzBWL1DYQLcqHUuMKlbigHg+gleqcO8NiHT5UdeSPVokD5VJPO1La1PMqkLmJYr
+3vVkQ9YzNQ615bX98VMIi17cmE7LE+vz+v287cdFT2f1pNXr3pCGzQIDAQABo00w
+SzALBgNVHQ8EBAMCBDAwCQYDVR0TBAIwADATBgNVHSUEDDAKBggrBgEFBQcDATAc
+BgNVHREEFTATghEqLldXVy5TTklURVNULkNPTTANBgkqhkiG9w0BAQsFAAOCAQEA
+HJyMCj9oHwECmSGWHnYHkO42zeyj24RKlhNG5skUCqZmpmeDc2BRMYH4fjP75MD2
+kuasZBMAxyQnur/DEn8TzQ1mlKxYCqoza1ql5PkfcwNUp/tvQ7Jhf45Z5mQVeUM7
+RSiBhpeetjHY5/xQb7gXHa97+OjDoRJ6NL/dzGxqypf37kiQPw2jWI5RTFBkP+h/
+sPbeAZJjmiEzvw31SAw9IGj3VvIwcuTxbsdJQITU7hCXDSd1EIocmzAoobY7WRcT
+B1pLmHlP/BaIsM7m0NF/HgUsgo/kgSsxnGA2MHMYQiTImR2DUgrJYzKlJ5acscLK
+sMq9xUnjr6KF1C15R2FpDw==
+-----END CERTIFICATE-----

integration/fixtures/https/uppercase_wildcard.www.snitest.com.key

@@ -0,0 +1,28 @@
+-----BEGIN PRIVATE KEY-----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+-----END PRIVATE KEY-----

integration/grpc_test.go

@@ -417,3 +417,45 @@ func (s *GRPCSuite) TestGRPCBufferWithFlushInterval(c *check.C) {
 	})
 	c.Assert(err, check.IsNil)
 }
+
+func (s *GRPCSuite) TestGRPCWithRetry(c *check.C) {
+	lis, err := net.Listen("tcp", ":0")
+	_, port, err := net.SplitHostPort(lis.Addr().String())
+	c.Assert(err, check.IsNil)
+
+	go func() {
+		err := startGRPCServer(lis, &myserver{})
+		c.Log(err)
+		c.Assert(err, check.IsNil)
+	}()
+
+	file := s.adaptFile(c, "fixtures/grpc/config_retry.toml", struct {
+		CertContent    string
+		KeyContent     string
+		GRPCServerPort string
+	}{
+		CertContent:    string(LocalhostCert),
+		KeyContent:     string(LocalhostKey),
+		GRPCServerPort: port,
+	})
+
+	defer os.Remove(file)
+	cmd, display := s.traefikCmd(withConfigFile(file))
+	defer display(c)
+
+	err = cmd.Start()
+	c.Assert(err, check.IsNil)
+	defer cmd.Process.Kill()
+
+	// wait for Traefik
+	err = try.GetRequest("http://127.0.0.1:8080/api/providers", 1*time.Second, try.BodyContains("Host:127.0.0.1"))
+	c.Assert(err, check.IsNil)
+
+	var response string
+	err = try.Do(1*time.Second, func() error {
+		response, err = callHelloClientGRPC("World", true)
+		return err
+	})
+	c.Assert(err, check.IsNil)
+	c.Assert(response, check.Equals, "Hello World")
+}

integration/https_test.go

@@ -830,3 +830,71 @@ func (s *HTTPSSuite) TestEntrypointHttpsRedirectAndPathModification(c *check.C)
 		}
 	}
 }
+
+// TestWithSNIStaticCaseInsensitive involves a client sending a SNI hostname of
+// "bar.www.snitest.com", which matches the DNS SAN of '*.WWW.SNITEST.COM'. The test
+// verifies that traefik presents the correct certificate.
+func (s *HTTPSSuite) TestWithSNIStaticCaseInsensitive(c *check.C) {
+	cmd, display := s.traefikCmd(withConfigFile("fixtures/https/https_sni_case_insensitive_static.toml"))
+	defer display(c)
+	err := cmd.Start()
+	c.Assert(err, checker.IsNil)
+	defer cmd.Process.Kill()
+
+	// wait for Traefik
+	err = try.GetRequest("http://127.0.0.1:8080/api/providers", 500*time.Millisecond, try.BodyContains("HostRegexp: {subdomain:[a-z1-9-]+}.www.snitest.com"))
+	c.Assert(err, checker.IsNil)
+
+	tlsConfig := &tls.Config{
+		InsecureSkipVerify: true,
+		ServerName:         "bar.www.snitest.com",
+		NextProtos:         []string{"h2", "http/1.1"},
+	}
+	conn, err := tls.Dial("tcp", "127.0.0.1:4443", tlsConfig)
+	c.Assert(err, checker.IsNil, check.Commentf("failed to connect to server"))
+
+	defer conn.Close()
+	err = conn.Handshake()
+	c.Assert(err, checker.IsNil, check.Commentf("TLS handshake error"))
+
+	cs := conn.ConnectionState()
+	err = cs.PeerCertificates[0].VerifyHostname("*.WWW.SNITEST.COM")
+	c.Assert(err, checker.IsNil, check.Commentf("certificate did not match SNI servername"))
+
+	proto := conn.ConnectionState().NegotiatedProtocol
+	c.Assert(proto, checker.Equals, "h2")
+}
+
+// TestWithSNIDynamicCaseInsensitive involves a client sending a SNI hostname of
+// "bar.www.snitest.com", which matches the DNS SAN of '*.WWW.SNITEST.COM'. The test
+// verifies that traefik presents the correct certificate.
+func (s *HTTPSSuite) TestWithSNIDynamicCaseInsensitive(c *check.C) {
+	cmd, display := s.traefikCmd(withConfigFile("fixtures/https/https_sni_case_insensitive_dynamic.toml"))
+	defer display(c)
+	err := cmd.Start()
+	c.Assert(err, checker.IsNil)
+	defer cmd.Process.Kill()
+
+	// wait for Traefik
+	err = try.GetRequest("http://127.0.0.1:8080/api/providers", 500*time.Millisecond, try.BodyContains("HostRegexp: {subdomain:[a-z1-9-]+}.www.snitest.com"))
+	c.Assert(err, checker.IsNil)
+
+	tlsConfig := &tls.Config{
+		InsecureSkipVerify: true,
+		ServerName:         "bar.www.snitest.com",
+		NextProtos:         []string{"h2", "http/1.1"},
+	}
+	conn, err := tls.Dial("tcp", "127.0.0.1:4443", tlsConfig)
+	c.Assert(err, checker.IsNil, check.Commentf("failed to connect to server"))
+
+	defer conn.Close()
+	err = conn.Handshake()
+	c.Assert(err, checker.IsNil, check.Commentf("TLS handshake error"))
+
+	cs := conn.ConnectionState()
+	err = cs.PeerCertificates[0].VerifyHostname("*.WWW.SNITEST.COM")
+	c.Assert(err, checker.IsNil, check.Commentf("certificate did not match SNI servername"))
+
+	proto := conn.ConnectionState().NegotiatedProtocol
+	c.Assert(proto, checker.Equals, "h2")
+}

integration/resources/compose/consul_catalog.yml

@@ -1,5 +1,8 @@
 consul:
-  image: consul
+  # use v1.4.0 because https://github.com/hashicorp/consul/issues/5270
+  # v1.4.1 cannot be used.
+  # waiting for v1.4.2
+  image: consul:1.4.0
   command: agent -server -bootstrap-expect 1 -client 0.0.0.0 -log-level debug -ui
   ports:
     - "8400:8400"

integration/resources/compose/pebble.yml

@@ -1,5 +1,5 @@
 pebble:
-  image: letsencrypt/pebble:2018-07-27
+  image: letsencrypt/pebble:v2.0.1
   command: pebble --dnsserver ${DOCKER_HOST_IP}:5053
   ports:
     - 14000:14000

integration/resources/compose/tracing.yml

@@ -1,7 +1,5 @@
 zipkin:
-  # Fix zipkin version 2.4.2
-  # due to a bug in latest version https://github.com/openzipkin/zipkin/releases/tag/2.4.4
-  image: openzipkin/zipkin:2.4.2
+  image: openzipkin/zipkin:2.12.6
   environment:
     STORAGE_TYPE: mem
     JAVA_OPTS: -Dlogging.level.zipkin=DEBUG

integration/timeout_test.go

@@ -1,6 +1,7 @@
 package integration
 
 import (
+	"fmt"
 	"net/http"
 	"os"
 	"time"
@@ -38,6 +39,10 @@ func (s *TimeoutSuite) TestForwardingTimeouts(c *check.C) {
 	c.Assert(err, checker.IsNil)
 	c.Assert(response.StatusCode, checker.Equals, http.StatusGatewayTimeout)
 
+	// Check that timeout service is available
+	statusURL := fmt.Sprintf("http://%s:9000/statusTest?status=200", httpTimeoutEndpoint)
+	c.Assert(try.GetRequest(statusURL, 60*time.Second, try.StatusCodeIs(http.StatusOK)), checker.IsNil)
+
 	// This simulates a ResponseHeaderTimeout.
 	response, err = http.Get("http://127.0.0.1:8000/responseHeaderTimeout?sleep=1000")
 	c.Assert(err, checker.IsNil)

middlewares/accesslog/logger_formatters.go

@@ -24,6 +24,8 @@ func (f *CommonLogFormatter) Format(entry *logrus.Entry) ([]byte, error) {
 	var timestamp = defaultValue
 	if v, ok := entry.Data[StartUTC]; ok {
 		timestamp = v.(time.Time).Format(commonLogTimeFormat)
+	} else if v, ok := entry.Data[StartLocal]; ok {
+		timestamp = v.(time.Time).Local().Format(commonLogTimeFormat)
 	}
 
 	var elapsedMillis int64

middlewares/accesslog/logger_formatters_test.go

@@ -2,6 +2,7 @@ package accesslog
 
 import (
 	"net/http"
+	"os"
 	"testing"
 	"time"
 
@@ -57,10 +58,34 @@ func TestCommonLogFormatter_Format(t *testing.T) {
 				BackendURL:             "http://10.0.0.2/toto",
 			},
 			expectedLog: `10.0.0.1 - Client [10/Nov/2009:23:00:00 +0000] "GET /foo http" 123 132 "referer" "agent" - "foo" "http://10.0.0.2/toto" 123000ms
+`,
+		},
+		{
+			name: "all data with local time",
+			data: map[string]interface{}{
+				StartLocal:             time.Date(2009, time.November, 10, 23, 0, 0, 0, time.UTC),
+				Duration:               123 * time.Second,
+				ClientHost:             "10.0.0.1",
+				ClientUsername:         "Client",
+				RequestMethod:          http.MethodGet,
+				RequestPath:            "/foo",
+				RequestProtocol:        "http",
+				OriginStatus:           123,
+				OriginContentSize:      132,
+				RequestRefererHeader:   "referer",
+				RequestUserAgentHeader: "agent",
+				RequestCount:           nil,
+				FrontendName:           "foo",
+				BackendURL:             "http://10.0.0.2/toto",
+			},
+			expectedLog: `10.0.0.1 - Client [10/Nov/2009:14:00:00 -0900] "GET /foo http" 123 132 "referer" "agent" - "foo" "http://10.0.0.2/toto" 123000ms
 `,
 		},
 	}
 
+	// Set timezone to Alaska to have a constant behavior
+	os.Setenv("TZ", "US/Alaska")
+
 	for _, test := range testCases {
 		test := test
 		t.Run(test.name, func(t *testing.T) {

middlewares/accesslog/logger_test.go

@@ -44,8 +44,9 @@ func TestLogRotation(t *testing.T) {
 	if err != nil {
 		t.Fatalf("Error setting up temporary directory: %s", err)
 	}
+	defer os.RemoveAll(tempDir)
 
-	fileName := tempDir + "traefik.log"
+	fileName := filepath.Join(tempDir, "traefik.log")
 	rotatedFileName := fileName + ".rotated"
 
 	config := &types.AccessLog{FilePath: fileName, Format: CommonFormat}
@@ -587,6 +588,7 @@ func captureStdout(t *testing.T) (out *os.File, restoreStdout func()) {
 
 	restoreStdout = func() {
 		os.Stdout = original
+		os.RemoveAll(file.Name())
 	}
 
 	return file, restoreStdout

middlewares/auth/authenticator.go

@@ -134,7 +134,7 @@ func getLinesFromFile(filename string) ([]string, error) {
 	var filteredLines []string
 	for _, rawLine := range rawLines {
 		line := strings.TrimSpace(rawLine)
-		if line != "" {
+		if line != "" && !strings.HasPrefix(line, "#") {
 			filteredLines = append(filteredLines, line)
 		}
 	}

middlewares/auth/authenticator_test.go

@@ -45,6 +45,17 @@ func TestAuthUsersFromFile(t *testing.T) {
 				return parserDigestUsers(digest)
 			},
 		},
+		{
+			authType: "basic",
+			usersStr: "#Comment\ntest:$apr1$H6uskkkW$IgXLP6ewTrSuBkTrqE8wj/\ntest2:$apr1$d9hr9HBB$4HxwgUir3HP4EsggP/QNo0\n",
+			userKeys: []string{"test", "test2"},
+			parserFunc: func(fileName string) (map[string]string, error) {
+				basic := &types.Basic{
+					UsersFile: fileName,
+				}
+				return parserBasicUsers(basic)
+			},
+		},
 	}
 
 	for _, test := range tests {

middlewares/auth/forward.go

@@ -96,7 +96,11 @@ func Forward(config *types.Forward, w http.ResponseWriter, r *http.Request, next
 	}
 
 	for _, headerName := range config.AuthResponseHeaders {
-		r.Header.Set(headerName, forwardResponse.Header.Get(headerName))
+		headerKey := http.CanonicalHeaderKey(headerName)
+		r.Header.Del(headerKey)
+		if len(forwardResponse.Header[headerKey]) > 0 {
+			r.Header[headerKey] = append([]string(nil), forwardResponse.Header[headerKey]...)
+		}
 	}
 
 	r.RequestURI = r.URL.RequestURI()

middlewares/auth/forward_test.go

@@ -50,6 +50,8 @@ func TestForwardAuthFail(t *testing.T) {
 func TestForwardAuthSuccess(t *testing.T) {
 	server := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
 		w.Header().Set("X-Auth-User", "user@example.com")
+		w.Header().Add("X-Auth-Group", "group1")
+		w.Header().Add("X-Auth-Group", "group2")
 		w.Header().Set("X-Auth-Secret", "secret")
 		fmt.Fprintln(w, "Success")
 	}))
@@ -58,13 +60,14 @@ func TestForwardAuthSuccess(t *testing.T) {
 	middleware, err := NewAuthenticator(&types.Auth{
 		Forward: &types.Forward{
 			Address:             server.URL,
-			AuthResponseHeaders: []string{"X-Auth-User"},
+			AuthResponseHeaders: []string{"X-Auth-User", "X-Auth-Group"},
 		},
 	}, &tracing.Tracing{})
 	assert.NoError(t, err, "there should be no error")
 
 	handler := http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
 		assert.Equal(t, "user@example.com", r.Header.Get("X-Auth-User"))
+		assert.Equal(t, []string{"group1", "group2"}, r.Header["X-Auth-Group"])
 		assert.Empty(t, r.Header.Get("X-Auth-Secret"))
 		fmt.Fprintln(w, "traefik")
 	})
@@ -74,6 +77,7 @@ func TestForwardAuthSuccess(t *testing.T) {
 	defer ts.Close()
 
 	req := testhelpers.MustNewRequest(http.MethodGet, ts.URL, nil)
+	req.Header.Set("X-Auth-Group", "admin_group")
 	res, err := http.DefaultClient.Do(req)
 	assert.NoError(t, err, "there should be no error")
 	assert.Equal(t, http.StatusOK, res.StatusCode, "they should be equal")

middlewares/errorpages/error_pages.go

@@ -74,25 +74,28 @@ func (h *Handler) ServeHTTP(w http.ResponseWriter, req *http.Request, next http.
 		return
 	}
 
-	recorder := newResponseRecorder(w)
-	next.ServeHTTP(recorder, req)
+	catcher := newCodeCatcher(w, h.httpCodeRanges)
+	next.ServeHTTP(catcher, req)
+	if !catcher.isError {
+		return
+	}
 
 	// check the recorder code against the configured http status code ranges
 	for _, block := range h.httpCodeRanges {
-		if recorder.GetCode() >= block[0] && recorder.GetCode() <= block[1] {
-			log.Errorf("Caught HTTP Status Code %d, returning error page", recorder.GetCode())
+		if catcher.code >= block[0] && catcher.code <= block[1] {
+			log.Errorf("Caught HTTP Status Code %d, returning error page", catcher.code)
 
 			var query string
 			if len(h.backendQuery) > 0 {
 				query = "/" + strings.TrimPrefix(h.backendQuery, "/")
-				query = strings.Replace(query, "{status}", strconv.Itoa(recorder.GetCode()), -1)
+				query = strings.Replace(query, "{status}", strconv.Itoa(catcher.code), -1)
 			}
 
 			pageReq, err := newRequest(h.backendURL + query)
 			if err != nil {
 				log.Error(err)
-				w.WriteHeader(recorder.GetCode())
-				fmt.Fprint(w, http.StatusText(recorder.GetCode()))
+				w.WriteHeader(catcher.code)
+				fmt.Fprint(w, http.StatusText(catcher.code))
 				return
 			}
 
@@ -102,16 +105,11 @@ func (h *Handler) ServeHTTP(w http.ResponseWriter, req *http.Request, next http.
 			h.backendHandler.ServeHTTP(recorderErrorPage, pageReq.WithContext(req.Context()))
 
 			utils.CopyHeaders(w.Header(), recorderErrorPage.Header())
-			w.WriteHeader(recorder.GetCode())
+			w.WriteHeader(catcher.code)
 			w.Write(recorderErrorPage.GetBody().Bytes())
 			return
 		}
 	}
-
-	// did not catch a configured status code so proceed with the request
-	utils.CopyHeaders(w.Header(), recorder.Header())
-	w.WriteHeader(recorder.GetCode())
-	w.Write(recorder.GetBody().Bytes())
 }
 
 func newRequest(baseURL string) (*http.Request, error) {
@@ -129,6 +127,73 @@ func newRequest(baseURL string) (*http.Request, error) {
 	return req, nil
 }
 
+// codeCatcher is a response writer that detects as soon as possible whether the
+// response is a code within the ranges of codes it watches for. If it is, it
+// simply drops the data from the response. Otherwise, it forwards it directly to
+// the original client (its responseWriter) without any buffering.
+type codeCatcher struct {
+	headerMap      http.Header
+	code           int
+	httpCodeRanges types.HTTPCodeRanges
+	firstWrite     bool
+	isError        bool
+	responseWriter http.ResponseWriter
+	err            error
+}
+
+func newCodeCatcher(rw http.ResponseWriter, httpCodeRanges types.HTTPCodeRanges) *codeCatcher {
+	catcher := &codeCatcher{
+		headerMap:      make(http.Header),
+		code:           http.StatusOK, // If backend does not call WriteHeader on us, we consider it's a 200.
+		responseWriter: rw,
+		httpCodeRanges: httpCodeRanges,
+		firstWrite:     true,
+	}
+	return catcher
+}
+
+func (cc *codeCatcher) Header() http.Header {
+	if cc.headerMap == nil {
+		cc.headerMap = make(http.Header)
+	}
+
+	return cc.headerMap
+}
+
+func (cc *codeCatcher) Write(buf []byte) (int, error) {
+	if cc.err != nil {
+		return 0, cc.err
+	}
+	if !cc.firstWrite {
+		if cc.isError {
+			// We don't care about the contents of the response,
+			// since we want to serve the ones from the error page,
+			// so we just drop them.
+			return len(buf), nil
+		}
+		return cc.responseWriter.Write(buf)
+	}
+
+	for _, block := range cc.httpCodeRanges {
+		if cc.code >= block[0] && cc.code <= block[1] {
+			cc.isError = true
+			break
+		}
+	}
+	cc.firstWrite = false
+	if !cc.isError {
+		utils.CopyHeaders(cc.responseWriter.Header(), cc.Header())
+		cc.responseWriter.WriteHeader(cc.code)
+	} else {
+		return len(buf), nil
+	}
+	return cc.responseWriter.Write(buf)
+}
+
+func (cc *codeCatcher) WriteHeader(code int) {
+	cc.code = code
+}
+
 type responseRecorder interface {
 	http.ResponseWriter
 	http.Flusher

middlewares/errorpages/error_pages_test.go

@@ -34,6 +34,18 @@ func TestHandler(t *testing.T) {
 				assert.Contains(t, recorder.Body.String(), http.StatusText(http.StatusOK))
 			},
 		},
+		{
+			desc:        "no error, but not a 200",
+			errorPage:   &types.ErrorPage{Backend: "error", Query: "/test", Status: []string{"500-501", "503-599"}},
+			backendCode: http.StatusPartialContent,
+			backendErrorHandler: http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+				fmt.Fprintln(w, "My error page.")
+			}),
+			validate: func(t *testing.T, recorder *httptest.ResponseRecorder) {
+				assert.Equal(t, http.StatusPartialContent, recorder.Code, "HTTP status")
+				assert.Contains(t, recorder.Body.String(), http.StatusText(http.StatusPartialContent))
+			},
+		},
 		{
 			desc:        "in the range",
 			errorPage:   &types.ErrorPage{Backend: "error", Query: "/test", Status: []string{"500-501", "503-599"}},

middlewares/redirect/redirect.go

@@ -125,8 +125,15 @@ type moveHandler struct {
 func (m *moveHandler) ServeHTTP(rw http.ResponseWriter, req *http.Request) {
 	rw.Header().Set("Location", m.location.String())
 	status := http.StatusFound
+	if req.Method != http.MethodGet {
+		status = http.StatusTemporaryRedirect
+	}
+
 	if m.permanent {
 		status = http.StatusMovedPermanently
+		if req.Method != http.MethodGet {
+			status = http.StatusPermanentRedirect
+		}
 	}
 	rw.WriteHeader(status)
 	rw.Write([]byte(http.StatusText(status)))

middlewares/redirect/redirect_test.go

@@ -17,6 +17,7 @@ func TestNewEntryPointHandler(t *testing.T) {
 		desc           string
 		entryPoint     *configuration.EntryPoint
 		permanent      bool
+		method         string
 		url            string
 		expectedURL    string
 		expectedStatus int
@@ -59,6 +60,24 @@ func TestNewEntryPointHandler(t *testing.T) {
 			expectedURL:    "http://foo:80",
 			expectedStatus: http.StatusMovedPermanently,
 		},
+		{
+			desc:           "HTTP to HTTP POST",
+			entryPoint:     &configuration.EntryPoint{Address: ":80"},
+			permanent:      false,
+			url:            "http://foo:90",
+			method:         http.MethodPost,
+			expectedURL:    "http://foo:80",
+			expectedStatus: http.StatusTemporaryRedirect,
+		},
+		{
+			desc:           "HTTP to HTTP POST permanent",
+			entryPoint:     &configuration.EntryPoint{Address: ":80"},
+			permanent:      true,
+			url:            "http://foo:90",
+			method:         http.MethodPost,
+			expectedURL:    "http://foo:80",
+			expectedStatus: http.StatusPermanentRedirect,
+		},
 		{
 			desc:          "invalid address",
 			entryPoint:    &configuration.EntryPoint{Address: ":foo", TLS: &tls.TLS{}},
@@ -80,7 +99,11 @@ func TestNewEntryPointHandler(t *testing.T) {
 				require.NoError(t, err)
 
 				recorder := httptest.NewRecorder()
-				r := testhelpers.MustNewRequest(http.MethodGet, test.url, nil)
+				method := http.MethodGet
+				if test.method != "" {
+					method = test.method
+				}
+				r := testhelpers.MustNewRequest(method, test.url, nil)
 				handler.ServeHTTP(recorder, r, nil)
 
 				location, err := recorder.Result().Location()

middlewares/retry.go

@@ -44,9 +44,7 @@ func (retry *Retry) ServeHTTP(rw http.ResponseWriter, r *http.Request) {
 
 	attempts := 1
 	for {
-		attemptsExhausted := attempts >= retry.attempts
-
-		shouldRetry := !attemptsExhausted
+		shouldRetry := attempts < retry.attempts
 		retryResponseWriter := newRetryResponseWriter(rw, shouldRetry)
 
 		// Disable retries when the backend already received request data
@@ -99,6 +97,7 @@ type retryResponseWriter interface {
 func newRetryResponseWriter(rw http.ResponseWriter, shouldRetry bool) retryResponseWriter {
 	responseWriter := &retryResponseWriterWithoutCloseNotify{
 		responseWriter: rw,
+		headers:        make(http.Header),
 		shouldRetry:    shouldRetry,
 	}
 	if _, ok := rw.(http.CloseNotifier); ok {
@@ -109,7 +108,9 @@ func newRetryResponseWriter(rw http.ResponseWriter, shouldRetry bool) retryRespo
 
 type retryResponseWriterWithoutCloseNotify struct {
 	responseWriter http.ResponseWriter
+	headers        http.Header
 	shouldRetry    bool
+	written        bool
 }
 
 func (rr *retryResponseWriterWithoutCloseNotify) ShouldRetry() bool {
@@ -121,10 +122,10 @@ func (rr *retryResponseWriterWithoutCloseNotify) DisableRetries() {
 }
 
 func (rr *retryResponseWriterWithoutCloseNotify) Header() http.Header {
-	if rr.ShouldRetry() {
-		return make(http.Header)
+	if rr.written {
+		return rr.responseWriter.Header()
 	}
-	return rr.responseWriter.Header()
+	return rr.headers
 }
 
 func (rr *retryResponseWriterWithoutCloseNotify) Write(buf []byte) (int, error) {
@@ -147,7 +148,18 @@ func (rr *retryResponseWriterWithoutCloseNotify) WriteHeader(code int) {
 	if rr.ShouldRetry() {
 		return
 	}
+
+	// In that case retry case is set to false which means we at least managed
+	// to write headers to the backend : we are not going to perform any further retry.
+	// So it is now safe to alter current response headers with headers collected during
+	// the latest try before writing headers to client.
+	headers := rr.responseWriter.Header()
+	for header, value := range rr.headers {
+		headers[header] = value
+	}
+
 	rr.responseWriter.WriteHeader(code)
+	rr.written = true
 }
 
 func (rr *retryResponseWriterWithoutCloseNotify) Hijack() (net.Conn, *bufio.ReadWriter, error) {

middlewares/retry_test.go

@@ -1,8 +1,11 @@
 package middlewares
 
 import (
+	"fmt"
 	"net/http"
 	"net/http/httptest"
+	"net/http/httptrace"
+	"strconv"
 	"strings"
 	"testing"
 
@@ -33,7 +36,7 @@ func TestRetry(t *testing.T) {
 			desc:                  "no retry when max request attempts is one",
 			maxRequestAttempts:    1,
 			wantRetryAttempts:     0,
-			wantResponseStatus:    http.StatusInternalServerError,
+			wantResponseStatus:    http.StatusBadGateway,
 			amountFaultyEndpoints: 1,
 		},
 		{
@@ -54,7 +57,7 @@ func TestRetry(t *testing.T) {
 			desc:                  "max attempts exhausted delivers the 5xx response",
 			maxRequestAttempts:    3,
 			wantRetryAttempts:     2,
-			wantResponseStatus:    http.StatusInternalServerError,
+			wantResponseStatus:    http.StatusBadGateway,
 			amountFaultyEndpoints: 3,
 		},
 	}
@@ -80,17 +83,18 @@ func TestRetry(t *testing.T) {
 				t.Fatalf("Error creating load balancer: %s", err)
 			}
 
-			basePort := 33444
+			// out of range port
+			basePort := 1133444
 			for i := 0; i < test.amountFaultyEndpoints; i++ {
 				// 192.0.2.0 is a non-routable IP for testing purposes.
 				// See: https://stackoverflow.com/questions/528538/non-routable-ip-address/18436928#18436928
 				// We only use the port specification here because the URL is used as identifier
 				// in the load balancer and using the exact same URL would not add a new server.
-				loadBalancer.UpsertServer(testhelpers.MustParseURL("http://192.0.2.0:" + string(basePort+i)))
+				_ = loadBalancer.UpsertServer(testhelpers.MustParseURL("http://192.0.2.0:" + strconv.Itoa(basePort+i)))
 			}
 
 			// add the functioning server to the end of the load balancer list
-			loadBalancer.UpsertServer(testhelpers.MustParseURL(backendServer.URL))
+			_ = loadBalancer.UpsertServer(testhelpers.MustParseURL(backendServer.URL))
 
 			retryListener := &countingRetryListener{}
 			retry := NewRetry(test.maxRequestAttempts, loadBalancer, retryListener)
@@ -152,17 +156,18 @@ func TestRetryWebsocket(t *testing.T) {
 				t.Fatalf("Error creating load balancer: %s", err)
 			}
 
-			basePort := 33444
+			// out of range port
+			basePort := 1133444
 			for i := 0; i < test.amountFaultyEndpoints; i++ {
 				// 192.0.2.0 is a non-routable IP for testing purposes.
 				// See: https://stackoverflow.com/questions/528538/non-routable-ip-address/18436928#18436928
 				// We only use the port specification here because the URL is used as identifier
 				// in the load balancer and using the exact same URL would not add a new server.
-				loadBalancer.UpsertServer(testhelpers.MustParseURL("http://192.0.2.0:" + string(basePort+i)))
+				_ = loadBalancer.UpsertServer(testhelpers.MustParseURL("http://192.0.2.0:" + strconv.Itoa(basePort+i)))
 			}
 
 			// add the functioning server to the end of the load balancer list
-			loadBalancer.UpsertServer(testhelpers.MustParseURL(backendServer.URL))
+			_ = loadBalancer.UpsertServer(testhelpers.MustParseURL(backendServer.URL))
 
 			retryListener := &countingRetryListener{}
 			retry := NewRetry(test.maxRequestAttempts, loadBalancer, retryListener)
@@ -256,3 +261,45 @@ func TestRetryWithFlush(t *testing.T) {
 		t.Errorf("Wrong body %q want %q", responseRecorder.Body.String(), "FULL DATA")
 	}
 }
+
+func TestMultipleRetriesShouldNotLooseHeaders(t *testing.T) {
+	attempt := 0
+	expectedHeaderName := "X-Foo-Test-2"
+	expectedHeaderValue := "bar"
+
+	next := http.HandlerFunc(func(rw http.ResponseWriter, req *http.Request) {
+		headerName := fmt.Sprintf("X-Foo-Test-%d", attempt)
+		rw.Header().Add(headerName, expectedHeaderValue)
+		if attempt < 2 {
+			attempt++
+			return
+		}
+
+		// Request has been successfully written to backend
+		trace := httptrace.ContextClientTrace(req.Context())
+		trace.WroteHeaders()
+
+		// And we decide to answer to client
+		rw.WriteHeader(http.StatusNoContent)
+	})
+
+	retry := NewRetry(3, next, &countingRetryListener{})
+	responseRecorder := httptest.NewRecorder()
+	retry.ServeHTTP(responseRecorder, &http.Request{})
+
+	headerValue := responseRecorder.Header().Get(expectedHeaderName)
+
+	// Validate if we have the correct header
+	if headerValue != expectedHeaderValue {
+		t.Errorf("Expected to have %s for header %s, got %s", expectedHeaderValue, expectedHeaderName, headerValue)
+	}
+
+	// Validate that we don't have headers from previous attempts
+	for i := 0; i < attempt; i++ {
+		headerName := fmt.Sprintf("X-Foo-Test-%d", i)
+		headerValue = responseRecorder.Header().Get("headerName")
+		if headerValue != "" {
+			t.Errorf("Expected no value for header %s, got %s", headerName, headerValue)
+		}
+	}
+}

middlewares/secure.go

@@ -17,6 +17,7 @@ func NewSecure(headers *types.Headers) *secure.Secure {
 		SSLRedirect:             headers.SSLRedirect,
 		SSLTemporaryRedirect:    headers.SSLTemporaryRedirect,
 		SSLHost:                 headers.SSLHost,
+		SSLForceHost:            headers.SSLForceHost,
 		SSLProxyHeaders:         headers.SSLProxyHeaders,
 		STSSeconds:              headers.STSSeconds,
 		STSIncludeSubdomains:    headers.STSIncludeSubdomains,

middlewares/secure_test.go

@@ -0,0 +1,96 @@
+package middlewares
+
+import (
+	"net/http"
+	"net/http/httptest"
+	"testing"
+
+	"github.com/containous/traefik/testhelpers"
+	"github.com/containous/traefik/types"
+	"github.com/stretchr/testify/assert"
+	"github.com/unrolled/secure"
+)
+
+func TestSSLForceHost(t *testing.T) {
+	testCases := []struct {
+		desc             string
+		host             string
+		secureMiddleware *secure.Secure
+		expected         int
+	}{
+		{
+			desc: "http should return a 301",
+			host: "http://powpow.example.com",
+			secureMiddleware: NewSecure(&types.Headers{
+				SSLRedirect:  true,
+				SSLForceHost: true,
+				SSLHost:      "powpow.example.com",
+			}),
+			expected: http.StatusMovedPermanently,
+		},
+		{
+			desc: "http sub domain should return a 301",
+			host: "http://www.powpow.example.com",
+			secureMiddleware: NewSecure(&types.Headers{
+				SSLRedirect:  true,
+				SSLForceHost: true,
+				SSLHost:      "powpow.example.com",
+			}),
+			expected: http.StatusMovedPermanently,
+		},
+		{
+			desc: "https should return a 200",
+			host: "https://powpow.example.com",
+			secureMiddleware: NewSecure(&types.Headers{
+				SSLRedirect:  true,
+				SSLForceHost: true,
+				SSLHost:      "powpow.example.com",
+			}),
+			expected: http.StatusOK,
+		},
+		{
+			desc: "https sub domain should return a 301",
+			host: "https://www.powpow.example.com",
+			secureMiddleware: NewSecure(&types.Headers{
+				SSLRedirect:  true,
+				SSLForceHost: true,
+				SSLHost:      "powpow.example.com",
+			}),
+			expected: http.StatusMovedPermanently,
+		},
+		{
+			desc: "http without force host and sub domain should return a 301",
+			host: "http://www.powpow.example.com",
+			secureMiddleware: NewSecure(&types.Headers{
+				SSLRedirect:  true,
+				SSLForceHost: false,
+				SSLHost:      "powpow.example.com",
+			}),
+			expected: http.StatusMovedPermanently,
+		},
+		{
+			desc: "https without force host and sub domain should return a 301",
+			host: "https://www.powpow.example.com",
+			secureMiddleware: NewSecure(&types.Headers{
+				SSLRedirect:  true,
+				SSLForceHost: false,
+				SSLHost:      "powpow.example.com",
+			}),
+			expected: http.StatusOK,
+		},
+	}
+
+	for _, test := range testCases {
+		t.Run(test.desc, func(t *testing.T) {
+			req := testhelpers.MustNewRequest(http.MethodGet, test.host, nil)
+			next := func(rw http.ResponseWriter, r *http.Request) {
+				rw.Write([]byte("OK"))
+			}
+
+			rw := httptest.NewRecorder()
+			test.secureMiddleware.HandlerFuncWithNextForRequestOnly(rw, req, next)
+
+			assert.Equal(t, test.expected, rw.Result().StatusCode)
+		})
+	}
+}

middlewares/tlsClientHeaders.go

@@ -13,45 +13,54 @@ import (
 	"github.com/containous/traefik/types"
 )
 
-const xForwardedTLSClientCert = "X-Forwarded-Tls-Client-Cert"
-const xForwardedTLSClientCertInfos = "X-Forwarded-Tls-Client-Cert-Infos"
+const (
+	xForwardedTLSClientCert      = "X-Forwarded-Tls-Client-Cert"
+	xForwardedTLSClientCertInfos = "X-Forwarded-Tls-Client-Cert-Infos"
+)
+
+var attributeTypeNames = map[string]string{
+	"0.9.2342.19200300.100.1.25": "DC", // Domain component OID - RFC 2247
+}
 
 // TLSClientCertificateInfos is a struct for specifying the configuration for the tlsClientHeaders middleware.
 type TLSClientCertificateInfos struct {
+	Issuer    *DistinguishedNameOptions
 	NotAfter  bool
 	NotBefore bool
-	Subject   *TLSCLientCertificateSubjectInfos
 	Sans      bool
+	Subject   *DistinguishedNameOptions
 }
 
-// TLSCLientCertificateSubjectInfos contains the configuration for the certificate subject infos.
-type TLSCLientCertificateSubjectInfos struct {
-	Country      bool
-	Province     bool
-	Locality     bool
-	Organization bool
-	CommonName   bool
-	SerialNumber bool
+// DistinguishedNameOptions is a struct for specifying the configuration for the distinguished name info.
+type DistinguishedNameOptions struct {
+	CommonName          bool
+	CountryName         bool
+	DomainComponent     bool
+	LocalityName        bool
+	OrganizationName    bool
+	SerialNumber        bool
+	StateOrProvinceName bool
 }
 
-// TLSClientHeaders is a middleware that helps setup a few tls infos features.
+// TLSClientHeaders is a middleware that helps setup a few tls info features.
 type TLSClientHeaders struct {
+	Infos *TLSClientCertificateInfos // pass selected information from the client certificate
 	PEM   bool                       // pass the sanitized pem to the backend in a specific header
-	Infos *TLSClientCertificateInfos // pass selected informations from the client certificate
 }
 
-func newTLSCLientCertificateSubjectInfos(infos *types.TLSCLientCertificateSubjectInfos) *TLSCLientCertificateSubjectInfos {
+func newDistinguishedNameOptions(infos *types.TLSCLientCertificateDNInfos) *DistinguishedNameOptions {
 	if infos == nil {
 		return nil
 	}
 
-	return &TLSCLientCertificateSubjectInfos{
-		SerialNumber: infos.SerialNumber,
-		CommonName:   infos.CommonName,
-		Country:      infos.Country,
-		Locality:     infos.Locality,
-		Organization: infos.Organization,
-		Province:     infos.Province,
+	return &DistinguishedNameOptions{
+		CommonName:          infos.CommonName,
+		CountryName:         infos.Country,
+		DomainComponent:     infos.DomainComponent,
+		LocalityName:        infos.Locality,
+		OrganizationName:    infos.Organization,
+		SerialNumber:        infos.SerialNumber,
+		StateOrProvinceName: infos.Province,
 	}
 }
 
@@ -61,31 +70,23 @@ func newTLSClientInfos(infos *types.TLSClientCertificateInfos) *TLSClientCertifi
 	}
 
 	return &TLSClientCertificateInfos{
-		NotBefore: infos.NotBefore,
+		Issuer:    newDistinguishedNameOptions(infos.Issuer),
 		NotAfter:  infos.NotAfter,
+		NotBefore: infos.NotBefore,
 		Sans:      infos.Sans,
-		Subject:   newTLSCLientCertificateSubjectInfos(infos.Subject),
+		Subject:   newDistinguishedNameOptions(infos.Subject),
 	}
 }
 
 // NewTLSClientHeaders constructs a new TLSClientHeaders instance from supplied frontend header struct.
-func NewTLSClientHeaders(frontend *types.Frontend) *TLSClientHeaders {
-	if frontend == nil {
+func NewTLSClientHeaders(passTLSClientCert *types.TLSClientHeaders) *TLSClientHeaders {
+	if passTLSClientCert == nil {
 		return nil
 	}
 
-	var pem bool
-	var infos *TLSClientCertificateInfos
-
-	if frontend.PassTLSClientCert != nil {
-		conf := frontend.PassTLSClientCert
-		pem = conf.PEM
-		infos = newTLSClientInfos(conf.Infos)
-	}
-
 	return &TLSClientHeaders{
-		PEM:   pem,
-		Infos: infos,
+		Infos: newTLSClientInfos(passTLSClientCert.Infos),
+		PEM:   passTLSClientCert.PEM,
 	}
 }
 
@@ -153,46 +154,67 @@ func getSANs(cert *x509.Certificate) []string {
 	return append(sans, uris...)
 }
 
-// getSubjectInfos extract the requested informations from the certificate subject
-func (s *TLSClientHeaders) getSubjectInfos(cs *pkix.Name) string {
-	var subject string
+func getDNInfos(prefix string, options *DistinguishedNameOptions, cs *pkix.Name) string {
+	if options == nil {
+		return ""
+	}
 
-	if s.Infos != nil && s.Infos.Subject != nil {
-		options := s.Infos.Subject
+	content := &strings.Builder{}
 
-		var content []string
-
-		if options.Country && len(cs.Country) > 0 {
-			content = append(content, fmt.Sprintf("C=%s", cs.Country[0]))
-		}
-
-		if options.Province && len(cs.Province) > 0 {
-			content = append(content, fmt.Sprintf("ST=%s", cs.Province[0]))
-		}
-
-		if options.Locality && len(cs.Locality) > 0 {
-			content = append(content, fmt.Sprintf("L=%s", cs.Locality[0]))
-		}
-
-		if options.Organization && len(cs.Organization) > 0 {
-			content = append(content, fmt.Sprintf("O=%s", cs.Organization[0]))
-		}
-
-		if options.CommonName && len(cs.CommonName) > 0 {
-			content = append(content, fmt.Sprintf("CN=%s", cs.CommonName))
-		}
-
-		if len(content) > 0 {
-			subject = `Subject="` + strings.Join(content, ",") + `"`
+	// Manage non standard attributes
+	for _, name := range cs.Names {
+		// Domain Component - RFC 2247
+		if options.DomainComponent && attributeTypeNames[name.Type.String()] == "DC" {
+			content.WriteString(fmt.Sprintf("DC=%s,", name.Value))
 		}
 	}
 
-	return subject
+	if options.CountryName {
+		writeParts(content, cs.Country, "C")
+	}
+
+	if options.StateOrProvinceName {
+		writeParts(content, cs.Province, "ST")
+	}
+
+	if options.LocalityName {
+		writeParts(content, cs.Locality, "L")
+	}
+
+	if options.OrganizationName {
+		writeParts(content, cs.Organization, "O")
+	}
+
+	if options.SerialNumber {
+		writePart(content, cs.SerialNumber, "SN")
+	}
+
+	if options.CommonName {
+		writePart(content, cs.CommonName, "CN")
+	}
+
+	if content.Len() > 0 {
+		return prefix + `="` + strings.TrimSuffix(content.String(), ",") + `"`
+	}
+
+	return ""
 }
 
-// getXForwardedTLSClientCertInfos Build a string with the wanted client certificates informations
-// like Subject="C=%s,ST=%s,L=%s,O=%s,CN=%s",NB=%d,NA=%d,SAN=%s;
-func (s *TLSClientHeaders) getXForwardedTLSClientCertInfos(certs []*x509.Certificate) string {
+func writeParts(content *strings.Builder, entries []string, prefix string) {
+	for _, entry := range entries {
+		writePart(content, entry, prefix)
+	}
+}
+
+func writePart(content *strings.Builder, entry string, prefix string) {
+	if len(entry) > 0 {
+		content.WriteString(fmt.Sprintf("%s=%s,", prefix, entry))
+	}
+}
+
+// getXForwardedTLSClientCertInfo Build a string with the wanted client certificates information
+// like Subject="DC=%s,C=%s,ST=%s,L=%s,O=%s,CN=%s",NB=%d,NA=%d,SAN=%s;
+func (s *TLSClientHeaders) getXForwardedTLSClientCertInfo(certs []*x509.Certificate) string {
 	var headerValues []string
 
 	for _, peerCert := range certs {
@@ -201,9 +223,16 @@ func (s *TLSClientHeaders) getXForwardedTLSClientCertInfos(certs []*x509.Certifi
 		var nb string
 		var na string
 
-		subject := s.getSubjectInfos(&peerCert.Subject)
-		if len(subject) > 0 {
-			values = append(values, subject)
+		if s.Infos != nil {
+			subject := getDNInfos("Subject", s.Infos.Subject, &peerCert.Subject)
+			if len(subject) > 0 {
+				values = append(values, subject)
+			}
+
+			issuer := getDNInfos("Issuer", s.Infos.Issuer, &peerCert.Issuer)
+			if len(issuer) > 0 {
+				values = append(values, issuer)
+			}
 		}
 
 		ci := s.Infos
@@ -230,8 +259,9 @@ func (s *TLSClientHeaders) getXForwardedTLSClientCertInfos(certs []*x509.Certifi
 	return strings.Join(headerValues, ";")
 }
 
-// ModifyRequestHeaders set the wanted headers with the certificates informations
+// ModifyRequestHeaders set the wanted headers with the certificates information
 func (s *TLSClientHeaders) ModifyRequestHeaders(r *http.Request) {
+	r.Header.Del(xForwardedTLSClientCert)
 	if s.PEM {
 		if r.TLS != nil && len(r.TLS.PeerCertificates) > 0 {
 			r.Header.Set(xForwardedTLSClientCert, getXForwardedTLSClientCert(r.TLS.PeerCertificates))
@@ -240,9 +270,10 @@ func (s *TLSClientHeaders) ModifyRequestHeaders(r *http.Request) {
 		}
 	}
 
+	r.Header.Del(xForwardedTLSClientCertInfos)
 	if s.Infos != nil {
 		if r.TLS != nil && len(r.TLS.PeerCertificates) > 0 {
-			headerContent := s.getXForwardedTLSClientCertInfos(r.TLS.PeerCertificates)
+			headerContent := s.getXForwardedTLSClientCertInfo(r.TLS.PeerCertificates)
 			r.Header.Set(xForwardedTLSClientCertInfos, url.QueryEscape(headerContent))
 		} else {
 			log.Warn("Try to extract certificate on a request without TLS")

middlewares/tracing/datadog/datadog.go

@@ -15,9 +15,14 @@ const Name = "datadog"
 
 // Config provides configuration settings for a datadog tracer
 type Config struct {
-	LocalAgentHostPort string `description:"Set datadog-agent's host:port that the reporter will used. Defaults to localhost:8126" export:"false"`
-	GlobalTag          string `description:"Key:Value tag to be set on all the spans." export:"true"`
-	Debug              bool   `description:"Enable DataDog debug." export:"true"`
+	LocalAgentHostPort         string `description:"Set datadog-agent's host:port that the reporter will used. Defaults to localhost:8126" export:"false"`
+	GlobalTag                  string `description:"Key:Value tag to be set on all the spans." export:"true"`
+	Debug                      bool   `description:"Enable DataDog debug." export:"true"`
+	PrioritySampling           bool   `description:"Enable priority sampling. When using distributed tracing, this option must be enabled in order to get all the parts of a distributed trace sampled."`
+	TraceIDHeaderName          string `description:"Specifies the header name that will be used to store the trace ID." export:"true"`
+	ParentIDHeaderName         string `description:"Specifies the header name that will be used to store the parent ID." export:"true"`
+	SamplingPriorityHeaderName string `description:"Specifies the header name that will be used to store the sampling priority." export:"true"`
+	BagagePrefixHeaderName     string `description:"specifies the header name prefix that will be used to store baggage items in a map." export:"true"`
 }
 
 // Setup sets up the tracer
@@ -29,12 +34,22 @@ func (c *Config) Setup(serviceName string) (opentracing.Tracer, io.Closer, error
 		value = tag[1]
 	}
 
-	tracer := ddtracer.New(
+	opts := []datadog.StartOption{
 		datadog.WithAgentAddr(c.LocalAgentHostPort),
 		datadog.WithServiceName(serviceName),
 		datadog.WithGlobalTag(tag[0], value),
 		datadog.WithDebugMode(c.Debug),
-	)
+		datadog.WithPropagator(datadog.NewPropagator(&datadog.PropagatorConfig{
+			TraceHeader:    c.TraceIDHeaderName,
+			ParentHeader:   c.ParentIDHeaderName,
+			PriorityHeader: c.SamplingPriorityHeaderName,
+			BaggagePrefix:  c.BagagePrefixHeaderName,
+		})),
+	}
+	if c.PrioritySampling {
+		opts = append(opts, datadog.WithPrioritySampling())
+	}
+	tracer := ddtracer.New(opts...)
 
 	// Without this, child spans are getting the NOOP tracer
 	opentracing.SetGlobalTracer(tracer)

middlewares/tracing/jaeger/jaeger.go

@@ -5,6 +5,7 @@ import (
 
 	"github.com/containous/traefik/log"
 	"github.com/opentracing/opentracing-go"
+	"github.com/uber/jaeger-client-go"
 	jaegercfg "github.com/uber/jaeger-client-go/config"
 	jaegermet "github.com/uber/jaeger-lib/metrics"
 )
@@ -14,10 +15,11 @@ const Name = "jaeger"
 
 // Config provides configuration settings for a jaeger tracer
 type Config struct {
-	SamplingServerURL  string  `description:"set the sampling server url." export:"false"`
-	SamplingType       string  `description:"set the sampling type." export:"true"`
-	SamplingParam      float64 `description:"set the sampling parameter." export:"true"`
-	LocalAgentHostPort string  `description:"set jaeger-agent's host:port that the reporter will used." export:"false"`
+	SamplingServerURL      string  `description:"set the sampling server url." export:"false"`
+	SamplingType           string  `description:"set the sampling type." export:"true"`
+	SamplingParam          float64 `description:"set the sampling parameter." export:"true"`
+	LocalAgentHostPort     string  `description:"set jaeger-agent's host:port that the reporter will used." export:"false"`
+	TraceContextHeaderName string  `description:"set the header to use for the trace-id." export:"true"`
 }
 
 // Setup sets up the tracer
@@ -32,6 +34,9 @@ func (c *Config) Setup(componentName string) (opentracing.Tracer, io.Closer, err
 			LogSpans:           true,
 			LocalAgentHostPort: c.LocalAgentHostPort,
 		},
+		Headers: &jaeger.HeadersConfig{
+			TraceContextHeaderName: c.TraceContextHeaderName,
+		},
 	}
 
 	jMetricsFactory := jaegermet.NullFactory

middlewares/tracing/zipkin/zipkin.go

@@ -5,7 +5,7 @@ import (
 
 	"github.com/containous/traefik/log"
 	"github.com/opentracing/opentracing-go"
-	zipkin "github.com/openzipkin/zipkin-go-opentracing"
+	zipkin "github.com/openzipkin-contrib/zipkin-go-opentracing"
 )
 
 // Name sets the name of this tracer

mkdocs.yml

@@ -6,6 +6,7 @@ dev_addr: 0.0.0.0:8000
 
 repo_name: 'GitHub'
 repo_url: 'https://github.com/containous/traefik'
+edit_uri: 'edit/v1.7/docs/'
 
 docs_dir: 'docs'
 
@@ -25,7 +26,7 @@ theme:
     prev: 'Previous'
     next: 'Next'
 
-copyright: "Copyright © 2016-2018 Containous SAS"
+copyright: "Copyright © 2016-2019 Containous"
 
 google_analytics:
   - 'UA-51880359-3'

provider/acme/account.go

@@ -7,15 +7,16 @@ import (
 	"crypto/x509"
 
 	"github.com/containous/traefik/log"
-	"github.com/xenolf/lego/acme"
+	"github.com/go-acme/lego/certcrypto"
+	"github.com/go-acme/lego/registration"
 )
 
 // Account is used to store lets encrypt registration info
 type Account struct {
 	Email        string
-	Registration *acme.RegistrationResource
+	Registration *registration.Resource
 	PrivateKey   []byte
-	KeyType      acme.KeyType
+	KeyType      certcrypto.KeyType
 }
 
 const (
@@ -46,7 +47,7 @@ func (a *Account) GetEmail() string {
 }
 
 // GetRegistration returns lets encrypt registration resource
-func (a *Account) GetRegistration() *acme.RegistrationResource {
+func (a *Account) GetRegistration() *registration.Resource {
 	return a.Registration
 }
 
@@ -61,23 +62,23 @@ func (a *Account) GetPrivateKey() crypto.PrivateKey {
 }
 
 // GetKeyType used to determine which algo to used
-func GetKeyType(value string) acme.KeyType {
+func GetKeyType(value string) certcrypto.KeyType {
 	switch value {
 	case "EC256":
-		return acme.EC256
+		return certcrypto.EC256
 	case "EC384":
-		return acme.EC384
+		return certcrypto.EC384
 	case "RSA2048":
-		return acme.RSA2048
+		return certcrypto.RSA2048
 	case "RSA4096":
-		return acme.RSA4096
+		return certcrypto.RSA4096
 	case "RSA8192":
-		return acme.RSA8192
+		return certcrypto.RSA8192
 	case "":
-		log.Infof("The key type is empty. Use default key type %v.", acme.RSA4096)
-		return acme.RSA4096
+		log.Infof("The key type is empty. Use default key type %v.", certcrypto.RSA4096)
+		return certcrypto.RSA4096
 	default:
-		log.Infof("Unable to determine key type value %q. Use default key type %v.", value, acme.RSA4096)
-		return acme.RSA4096
+		log.Infof("Unable to determine key type value %q. Use default key type %v.", value, certcrypto.RSA4096)
+		return certcrypto.RSA4096
 	}
 }

provider/acme/challenge_http.go

@@ -9,10 +9,11 @@ import (
 	"github.com/containous/mux"
 	"github.com/containous/traefik/log"
 	"github.com/containous/traefik/safe"
-	"github.com/xenolf/lego/acme"
+	"github.com/go-acme/lego/challenge"
+	"github.com/go-acme/lego/challenge/http01"
 )
 
-var _ acme.ChallengeProviderTimeout = (*challengeHTTP)(nil)
+var _ challenge.ProviderTimeout = (*challengeHTTP)(nil)
 
 type challengeHTTP struct {
 	Store Store
@@ -61,7 +62,7 @@ func getTokenValue(token, domain string, store Store) []byte {
 // AddRoutes add routes on internal router
 func (p *Provider) AddRoutes(router *mux.Router) {
 	router.Methods(http.MethodGet).
-		Path(acme.HTTP01ChallengePath("{token}")).
+		Path(http01.ChallengePath("{token}")).
 		Handler(http.HandlerFunc(func(rw http.ResponseWriter, req *http.Request) {
 			vars := mux.Vars(req)
 			if token, ok := vars["token"]; ok {

provider/acme/challenge_tls.go

@@ -5,10 +5,11 @@ import (
 
 	"github.com/containous/traefik/log"
 	"github.com/containous/traefik/types"
-	"github.com/xenolf/lego/acme"
+	"github.com/go-acme/lego/challenge"
+	"github.com/go-acme/lego/challenge/tlsalpn01"
 )
 
-var _ acme.ChallengeProvider = (*challengeTLSALPN)(nil)
+var _ challenge.Provider = (*challengeTLSALPN)(nil)
 
 type challengeTLSALPN struct {
 	Store Store
@@ -17,7 +18,7 @@ type challengeTLSALPN struct {
 func (c *challengeTLSALPN) Present(domain, token, keyAuth string) error {
 	log.Debugf("TLS Challenge Present temp certificate for %s", domain)
 
-	certPEMBlock, keyPEMBlock, err := acme.TLSALPNChallengeBlocks(domain, keyAuth)
+	certPEMBlock, keyPEMBlock, err := tlsalpn01.ChallengeBlocks(domain, keyAuth)
 	if err != nil {
 		return err
 	}

provider/acme/provider.go

@@ -6,7 +6,6 @@ import (
 	"fmt"
 	"io/ioutil"
 	fmtlog "log"
-	"net"
 	"net/url"
 	"reflect"
 	"strings"
@@ -21,15 +20,19 @@ import (
 	traefiktls "github.com/containous/traefik/tls"
 	"github.com/containous/traefik/types"
 	"github.com/containous/traefik/version"
+	"github.com/go-acme/lego/certificate"
+	"github.com/go-acme/lego/challenge"
+	"github.com/go-acme/lego/challenge/dns01"
+	"github.com/go-acme/lego/lego"
+	legolog "github.com/go-acme/lego/log"
+	"github.com/go-acme/lego/providers/dns"
+	"github.com/go-acme/lego/registration"
 	"github.com/pkg/errors"
 	"github.com/sirupsen/logrus"
-	"github.com/xenolf/lego/acme"
-	legolog "github.com/xenolf/lego/log"
-	"github.com/xenolf/lego/providers/dns"
 )
 
 var (
-	// OSCPMustStaple enables OSCP stapling as from https://github.com/xenolf/lego/issues/270
+	// OSCPMustStaple enables OSCP stapling as from https://github.com/go-acme/lego/issues/270
 	OSCPMustStaple = false
 )
 
@@ -46,7 +49,7 @@ type Configuration struct {
 	DNSChallenge  *DNSChallenge  `description:"Activate DNS-01 Challenge"`
 	HTTPChallenge *HTTPChallenge `description:"Activate HTTP-01 Challenge"`
 	TLSChallenge  *TLSChallenge  `description:"Activate TLS-ALPN-01 Challenge"`
-	Domains       []types.Domain `description:"CN and SANs (alternative domains) to each main domain using format: --acme.domains='main.com,san1.com,san2.com' --acme.domains='*.main.net'. No SANs for wildcards domain. Wildcard domains only accepted with DNSChallenge"`
+	Domains       []types.Domain `description:"CN and SANs (alternative domains) to each main domain using format: --acme.domains='main.com,san1.com,san2.com' --acme.domains='*.main.net'. Wildcard domains only accepted with DNSChallenge"`
 }
 
 // Provider holds configurations of the provider.
@@ -55,7 +58,7 @@ type Provider struct {
 	Store                  Store
 	certificates           []*Certificate
 	account                *Account
-	client                 *acme.Client
+	client                 *lego.Client
 	certsChan              chan *Certificate
 	configurationChan      chan<- types.ConfigMessage
 	certificateStore       *traefiktls.CertificateStore
@@ -113,14 +116,13 @@ func (p *Provider) ListenRequest(domain string) (*tls.Certificate, error) {
 		return nil, err
 	}
 
-	certificate, err := tls.X509KeyPair(acmeCert.Certificate, acmeCert.PrivateKey)
+	cert, err := tls.X509KeyPair(acmeCert.Certificate, acmeCert.PrivateKey)
 
-	return &certificate, err
+	return &cert, err
 }
 
 // Init for compatibility reason the BaseProvider implements an empty Init
 func (p *Provider) Init(_ types.Constraints) error {
-	acme.UserAgent = fmt.Sprintf("containous-traefik/%s", version.Version)
 	if p.ACMELogging {
 		legolog.Logger = fmtlog.New(log.WriterLevel(logrus.InfoLevel), "legolog: ", 0)
 	} else {
@@ -207,7 +209,7 @@ func (p *Provider) Provide(configurationChan chan<- types.ConfigMessage, pool *s
 	return nil
 }
 
-func (p *Provider) getClient() (*acme.Client, error) {
+func (p *Provider) getClient() (*lego.Client, error) {
 	p.clientMutex.Lock()
 	defer p.clientMutex.Unlock()
 
@@ -228,7 +230,12 @@ func (p *Provider) getClient() (*acme.Client, error) {
 	}
 	log.Debug(caServer)
 
-	client, err := acme.NewClient(caServer, account, account.KeyType)
+	config := lego.NewConfig(account)
+	config.CADirURL = caServer
+	config.Certificate.KeyType = account.KeyType
+	config.UserAgent = fmt.Sprintf("containous-traefik/%s", version.Version)
+
+	client, err := lego.NewClient(config)
 	if err != nil {
 		return nil, err
 	}
@@ -237,7 +244,7 @@ func (p *Provider) getClient() (*acme.Client, error) {
 	if account.GetRegistration() == nil {
 		log.Info("Register...")
 
-		reg, err := client.Register(true)
+		reg, err := client.Registration.Register(registration.RegisterOptions{TermsOfServiceAgreed: true})
 		if err != nil {
 			return nil, err
 		}
@@ -255,23 +262,23 @@ func (p *Provider) getClient() (*acme.Client, error) {
 	if p.DNSChallenge != nil && len(p.DNSChallenge.Provider) > 0 {
 		log.Debugf("Using DNS Challenge provider: %s", p.DNSChallenge.Provider)
 
-		SetRecursiveNameServers(p.DNSChallenge.Resolvers)
-		SetPropagationCheck(p.DNSChallenge.DisablePropagationCheck)
-
-		err = dnsOverrideDelay(p.DNSChallenge.DelayBeforeCheck)
-		if err != nil {
-			return nil, err
-		}
-
-		var provider acme.ChallengeProvider
+		var provider challenge.Provider
 		provider, err = dns.NewDNSChallengeProviderByName(p.DNSChallenge.Provider)
 		if err != nil {
 			return nil, err
 		}
 
-		client.ExcludeChallenges([]acme.Challenge{acme.HTTP01, acme.TLSALPN01})
-
-		err = client.SetChallengeProvider(acme.DNS01, provider)
+		err = client.Challenge.SetDNS01Provider(provider,
+			dns01.CondOption(len(p.DNSChallenge.Resolvers) > 0, dns01.AddRecursiveNameservers(p.DNSChallenge.Resolvers)),
+			dns01.CondOption(p.DNSChallenge.DisablePropagationCheck || p.DNSChallenge.DelayBeforeCheck > 0,
+				dns01.AddPreCheck(func(_, _ string) (bool, error) {
+					if p.DNSChallenge.DelayBeforeCheck > 0 {
+						log.Debugf("Delaying %d rather than validating DNS propagation now.", p.DNSChallenge.DelayBeforeCheck)
+						time.Sleep(time.Duration(p.DNSChallenge.DelayBeforeCheck))
+					}
+					return true, nil
+				})),
+		)
 		if err != nil {
 			return nil, err
 		}
@@ -281,25 +288,21 @@ func (p *Provider) getClient() (*acme.Client, error) {
 		p.DNSChallenge.preCheckInterval = 2 * time.Second
 
 		// Set the precheck timeout into the DNSChallenge provider
-		if challengeProviderTimeout, ok := provider.(acme.ChallengeProviderTimeout); ok {
+		if challengeProviderTimeout, ok := provider.(challenge.ProviderTimeout); ok {
 			p.DNSChallenge.preCheckTimeout, p.DNSChallenge.preCheckInterval = challengeProviderTimeout.Timeout()
 		}
 
 	} else if p.HTTPChallenge != nil && len(p.HTTPChallenge.EntryPoint) > 0 {
 		log.Debug("Using HTTP Challenge provider.")
 
-		client.ExcludeChallenges([]acme.Challenge{acme.DNS01, acme.TLSALPN01})
-
-		err = client.SetChallengeProvider(acme.HTTP01, &challengeHTTP{Store: p.Store})
+		err = client.Challenge.SetHTTP01Provider(&challengeHTTP{Store: p.Store})
 		if err != nil {
 			return nil, err
 		}
 	} else if p.TLSChallenge != nil {
 		log.Debug("Using TLS Challenge provider.")
 
-		client.ExcludeChallenges([]acme.Challenge{acme.HTTP01, acme.DNS01})
-
-		err = client.SetChallengeProvider(acme.TLSALPN01, &challengeTLSALPN{Store: p.Store})
+		err = client.Challenge.SetTLSALPN01Provider(&challengeTLSALPN{Store: p.Store})
 		if err != nil {
 			return nil, err
 		}
@@ -383,7 +386,7 @@ func (p *Provider) watchNewDomains() {
 	})
 }
 
-func (p *Provider) resolveCertificate(domain types.Domain, domainFromConfigurationFile bool) (*acme.CertificateResource, error) {
+func (p *Provider) resolveCertificate(domain types.Domain, domainFromConfigurationFile bool) (*certificate.Resource, error) {
 	domains, err := p.getValidDomains(domain, domainFromConfigurationFile)
 	if err != nil {
 		return nil, err
@@ -405,22 +408,27 @@ func (p *Provider) resolveCertificate(domain types.Domain, domainFromConfigurati
 		return nil, fmt.Errorf("cannot get ACME client %v", err)
 	}
 
-	var certificate *acme.CertificateResource
+	var cert *certificate.Resource
 	bundle := true
 	if p.useCertificateWithRetry(uncheckedDomains) {
-		certificate, err = obtainCertificateWithRetry(domains, client, p.DNSChallenge.preCheckTimeout, p.DNSChallenge.preCheckInterval, bundle)
+		cert, err = obtainCertificateWithRetry(domains, client, p.DNSChallenge.preCheckTimeout, p.DNSChallenge.preCheckInterval, bundle)
 	} else {
-		certificate, err = client.ObtainCertificate(domains, bundle, nil, OSCPMustStaple)
+		request := certificate.ObtainRequest{
+			Domains:    domains,
+			Bundle:     bundle,
+			MustStaple: OSCPMustStaple,
+		}
+		cert, err = client.Certificate.Obtain(request)
 	}
 
 	if err != nil {
 		return nil, fmt.Errorf("unable to generate a certificate for the domains %v: %v", uncheckedDomains, err)
 	}
-	if certificate == nil {
+	if cert == nil {
 		return nil, fmt.Errorf("domains %v do not generate a certificate", uncheckedDomains)
 	}
-	if len(certificate.Certificate) == 0 || len(certificate.PrivateKey) == 0 {
-		return nil, fmt.Errorf("domains %v generate certificate with no value: %v", uncheckedDomains, certificate)
+	if len(cert.Certificate) == 0 || len(cert.PrivateKey) == 0 {
+		return nil, fmt.Errorf("domains %v generate certificate with no value: %v", uncheckedDomains, cert)
 	}
 
 	log.Debugf("Certificates obtained for domains %+v", uncheckedDomains)
@@ -430,9 +438,9 @@ func (p *Provider) resolveCertificate(domain types.Domain, domainFromConfigurati
 	} else {
 		domain = types.Domain{Main: uncheckedDomains[0]}
 	}
-	p.addCertificateForDomain(domain, certificate.Certificate, certificate.PrivateKey)
+	p.addCertificateForDomain(domain, cert.Certificate, cert.PrivateKey)
 
-	return certificate, nil
+	return cert, nil
 }
 
 func (p *Provider) removeResolvingDomains(resolvingDomains []string) {
@@ -479,12 +487,17 @@ func (p *Provider) useCertificateWithRetry(domains []string) bool {
 	return false
 }
 
-func obtainCertificateWithRetry(domains []string, client *acme.Client, timeout, interval time.Duration, bundle bool) (*acme.CertificateResource, error) {
-	var certificate *acme.CertificateResource
+func obtainCertificateWithRetry(domains []string, client *lego.Client, timeout, interval time.Duration, bundle bool) (*certificate.Resource, error) {
+	var cert *certificate.Resource
 	var err error
 
 	operation := func() error {
-		certificate, err = client.ObtainCertificate(domains, bundle, nil, OSCPMustStaple)
+		request := certificate.ObtainRequest{
+			Domains:    domains,
+			Bundle:     bundle,
+			MustStaple: OSCPMustStaple,
+		}
+		cert, err = client.Certificate.Obtain(request)
 		return err
 	}
 
@@ -504,25 +517,7 @@ func obtainCertificateWithRetry(domains []string, client *acme.Client, timeout,
 		return nil, err
 	}
 
-	return certificate, nil
-}
-
-func dnsOverrideDelay(delay flaeg.Duration) error {
-	if delay == 0 {
-		return nil
-	}
-
-	if delay > 0 {
-		log.Debugf("Delaying %d rather than validating DNS propagation now.", delay)
-
-		acme.PreCheckDNS = func(_, _ string) (bool, error) {
-			time.Sleep(time.Duration(delay))
-			return true, nil
-		}
-	} else {
-		return fmt.Errorf("delayBeforeCheck: %d cannot be less than 0", delay)
-	}
-	return nil
+	return cert, nil
 }
 
 func (p *Provider) addCertificateForDomain(domain types.Domain, certificate []byte, key []byte) {
@@ -634,44 +629,44 @@ func (p *Provider) refreshCertificates() {
 	}
 
 	for _, cert := range p.certificates {
-		certificate := &traefiktls.Certificate{CertFile: traefiktls.FileOrContent(cert.Certificate), KeyFile: traefiktls.FileOrContent(cert.Key)}
-		config.Configuration.TLS = append(config.Configuration.TLS, &traefiktls.Configuration{Certificate: certificate, EntryPoints: []string{p.EntryPoint}})
+		cert := &traefiktls.Certificate{CertFile: traefiktls.FileOrContent(cert.Certificate), KeyFile: traefiktls.FileOrContent(cert.Key)}
+		config.Configuration.TLS = append(config.Configuration.TLS, &traefiktls.Configuration{Certificate: cert, EntryPoints: []string{p.EntryPoint}})
 	}
 	p.configurationChan <- config
 }
 
 func (p *Provider) renewCertificates() {
 	log.Info("Testing certificate renew...")
-	for _, certificate := range p.certificates {
-		crt, err := getX509Certificate(certificate)
+	for _, cert := range p.certificates {
+		crt, err := getX509Certificate(cert)
 		// If there's an error, we assume the cert is broken, and needs update
 		// <= 30 days left, renew certificate
 		if err != nil || crt == nil || crt.NotAfter.Before(time.Now().Add(24*30*time.Hour)) {
 			client, err := p.getClient()
 			if err != nil {
-				log.Infof("Error renewing certificate from LE : %+v, %v", certificate.Domain, err)
+				log.Infof("Error renewing certificate from LE : %+v, %v", cert.Domain, err)
 				continue
 			}
 
-			log.Infof("Renewing certificate from LE : %+v", certificate.Domain)
+			log.Infof("Renewing certificate from LE : %+v", cert.Domain)
 
-			renewedCert, err := client.RenewCertificate(acme.CertificateResource{
-				Domain:      certificate.Domain.Main,
-				PrivateKey:  certificate.Key,
-				Certificate: certificate.Certificate,
+			renewedCert, err := client.Certificate.Renew(certificate.Resource{
+				Domain:      cert.Domain.Main,
+				PrivateKey:  cert.Key,
+				Certificate: cert.Certificate,
 			}, true, OSCPMustStaple)
 
 			if err != nil {
-				log.Errorf("Error renewing certificate from LE: %v, %v", certificate.Domain, err)
+				log.Errorf("Error renewing certificate from LE: %v, %v", cert.Domain, err)
 				continue
 			}
 
 			if len(renewedCert.Certificate) == 0 || len(renewedCert.PrivateKey) == 0 {
-				log.Errorf("domains %v renew certificate with no value: %v", certificate.Domain.ToStrArray(), certificate)
+				log.Errorf("domains %v renew certificate with no value: %v", cert.Domain.ToStrArray(), cert)
 				continue
 			}
 
-			p.addCertificateForDomain(certificate.Domain, renewedCert.Certificate, renewedCert.PrivateKey)
+			p.addCertificateForDomain(cert.Domain, renewedCert.Certificate, renewedCert.PrivateKey)
 		}
 	}
 }
@@ -687,8 +682,8 @@ func (p *Provider) getUncheckedDomains(domainsToCheck []string, checkConfigurati
 	allDomains := p.certificateStore.GetAllDomains()
 
 	// Get ACME certificates
-	for _, certificate := range p.certificates {
-		allDomains = append(allDomains, strings.Join(certificate.Domain.ToStrArray(), ","))
+	for _, cert := range p.certificates {
+		allDomains = append(allDomains, strings.Join(cert.Domain.ToStrArray(), ","))
 	}
 
 	// Get currently resolved domains
@@ -722,10 +717,10 @@ func searchUncheckedDomains(domainsToCheck []string, existentDomains []string) [
 	return uncheckedDomains
 }
 
-func getX509Certificate(certificate *Certificate) (*x509.Certificate, error) {
-	tlsCert, err := tls.X509KeyPair(certificate.Certificate, certificate.Key)
+func getX509Certificate(cert *Certificate) (*x509.Certificate, error) {
+	tlsCert, err := tls.X509KeyPair(cert.Certificate, cert.Key)
 	if err != nil {
-		log.Errorf("Failed to load TLS keypair from ACME certificate for domain %q (SAN : %q), certificate will be renewed : %v", certificate.Domain.Main, strings.Join(certificate.Domain.SANs, ","), err)
+		log.Errorf("Failed to load TLS keypair from ACME certificate for domain %q (SAN : %q), certificate will be renewed : %v", cert.Domain.Main, strings.Join(cert.Domain.SANs, ","), err)
 		return nil, err
 	}
 
@@ -733,7 +728,7 @@ func getX509Certificate(certificate *Certificate) (*x509.Certificate, error) {
 	if crt == nil {
 		crt, err = x509.ParseCertificate(tlsCert.Certificate[0])
 		if err != nil {
-			log.Errorf("Failed to parse TLS keypair from ACME certificate for domain %q (SAN : %q), certificate will be renewed : %v", certificate.Domain.Main, strings.Join(certificate.Domain.SANs, ","), err)
+			log.Errorf("Failed to parse TLS keypair from ACME certificate for domain %q (SAN : %q), certificate will be renewed : %v", cert.Domain.Main, strings.Join(cert.Domain.SANs, ","), err)
 		}
 	}
 
@@ -761,16 +756,10 @@ func (p *Provider) getValidDomains(domain types.Domain, wildcardAllowed bool) ([
 		}
 	}
 
-	for _, san := range domain.SANs {
-		if strings.HasPrefix(san, "*") {
-			return nil, fmt.Errorf("unable to generate a certificate in ACME provider for domains %q: SAN %q can not be a wildcard domain", strings.Join(domains, ","), san)
-		}
-	}
-
 	var cleanDomains []string
 	for _, domain := range domains {
 		canonicalDomain := types.CanonicalDomain(domain)
-		cleanDomain := acme.UnFqdn(canonicalDomain)
+		cleanDomain := dns01.UnFqdn(canonicalDomain)
 		if canonicalDomain != cleanDomain {
 			log.Warnf("FQDN detected, please remove the trailing dot: %s", canonicalDomain)
 		}
@@ -790,37 +779,3 @@ func isDomainAlreadyChecked(domainToCheck string, existentDomains []string) bool
 	}
 	return false
 }
-
-// SetPropagationCheck to disable the Lego PreCheck.
-func SetPropagationCheck(disable bool) {
-	if disable {
-		acme.PreCheckDNS = func(_, _ string) (bool, error) {
-			return true, nil
-		}
-	}
-}
-
-// SetRecursiveNameServers to provide a custom DNS resolver.
-func SetRecursiveNameServers(dnsResolvers []string) {
-	resolvers := normaliseDNSResolvers(dnsResolvers)
-	if len(resolvers) > 0 {
-		acme.RecursiveNameservers = resolvers
-		log.Infof("Validating FQDN authority with DNS using %+v", resolvers)
-	}
-}
-
-// ensure all servers have a port number
-func normaliseDNSResolvers(dnsResolvers []string) []string {
-	var normalisedResolvers []string
-	for _, server := range dnsResolvers {
-		srv := strings.TrimSpace(server)
-		if len(srv) > 0 {
-			if host, port, err := net.SplitHostPort(srv); err != nil {
-				normalisedResolvers = append(normalisedResolvers, net.JoinHostPort(srv, "53"))
-			} else {
-				normalisedResolvers = append(normalisedResolvers, net.JoinHostPort(host, port))
-			}
-		}
-	}
-	return normalisedResolvers
-}