mirror of
https://github.com/containous/traefik.git
synced 2024-12-25 23:21:40 +03:00
838a8e18d3
Co-authored-by: Dmitry Sharshakov <d3dx12.xx@gmail.com> Co-authored-by: Julien Salleyron <julien.salleyron@gmail.com> Co-authored-by: Jean-Baptiste Doumenjou <925513+jbdoumenjou@users.noreply.github.com> Co-authored-by: Romain <rtribotte@users.noreply.github.com> Co-authored-by: Tom Moulard <tom.moulard@traefik.io>
542 lines
18 KiB
Go
542 lines
18 KiB
Go
package integration
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import (
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"bytes"
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"fmt"
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"io/ioutil"
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"net/http"
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"os"
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"time"
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"github.com/go-check/check"
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"github.com/traefik/traefik/v2/integration/try"
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checker "github.com/vdemeester/shakers"
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)
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// HealthCheck test suites (using libcompose).
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type HealthCheckSuite struct {
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BaseSuite
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whoami1IP string
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whoami2IP string
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whoami3IP string
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whoami4IP string
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}
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func (s *HealthCheckSuite) SetUpSuite(c *check.C) {
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s.createComposeProject(c, "healthcheck")
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s.composeProject.Start(c)
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s.whoami1IP = s.composeProject.Container(c, "whoami1").NetworkSettings.IPAddress
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s.whoami2IP = s.composeProject.Container(c, "whoami2").NetworkSettings.IPAddress
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s.whoami3IP = s.composeProject.Container(c, "whoami3").NetworkSettings.IPAddress
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s.whoami4IP = s.composeProject.Container(c, "whoami4").NetworkSettings.IPAddress
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}
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func (s *HealthCheckSuite) TestSimpleConfiguration(c *check.C) {
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file := s.adaptFile(c, "fixtures/healthcheck/simple.toml", struct {
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Server1 string
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Server2 string
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}{s.whoami1IP, s.whoami2IP})
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defer os.Remove(file)
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cmd, display := s.traefikCmd(withConfigFile(file))
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defer display(c)
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err := cmd.Start()
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c.Assert(err, checker.IsNil)
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defer s.killCmd(cmd)
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// wait for traefik
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err = try.GetRequest("http://127.0.0.1:8080/api/rawdata", 60*time.Second, try.BodyContains("Host(`test.localhost`)"))
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c.Assert(err, checker.IsNil)
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frontendHealthReq, err := http.NewRequest(http.MethodGet, "http://127.0.0.1:8000/health", nil)
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c.Assert(err, checker.IsNil)
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frontendHealthReq.Host = "test.localhost"
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err = try.Request(frontendHealthReq, 500*time.Millisecond, try.StatusCodeIs(http.StatusOK))
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c.Assert(err, checker.IsNil)
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// Fix all whoami health to 500
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client := &http.Client{}
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whoamiHosts := []string{s.whoami1IP, s.whoami2IP}
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for _, whoami := range whoamiHosts {
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statusInternalServerErrorReq, err := http.NewRequest(http.MethodPost, "http://"+whoami+"/health", bytes.NewBuffer([]byte("500")))
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c.Assert(err, checker.IsNil)
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_, err = client.Do(statusInternalServerErrorReq)
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c.Assert(err, checker.IsNil)
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}
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// Verify no backend service is available due to failing health checks
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err = try.Request(frontendHealthReq, 3*time.Second, try.StatusCodeIs(http.StatusServiceUnavailable))
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c.Assert(err, checker.IsNil)
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// Change one whoami health to 200
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statusOKReq1, err := http.NewRequest(http.MethodPost, "http://"+s.whoami1IP+"/health", bytes.NewBuffer([]byte("200")))
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c.Assert(err, checker.IsNil)
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_, err = client.Do(statusOKReq1)
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c.Assert(err, checker.IsNil)
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// Verify frontend health : after
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err = try.Request(frontendHealthReq, 3*time.Second, try.StatusCodeIs(http.StatusOK))
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c.Assert(err, checker.IsNil)
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frontendReq, err := http.NewRequest(http.MethodGet, "http://127.0.0.1:8000/", nil)
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c.Assert(err, checker.IsNil)
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frontendReq.Host = "test.localhost"
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// Check if whoami1 responds
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err = try.Request(frontendReq, 500*time.Millisecond, try.BodyContains(s.whoami1IP))
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c.Assert(err, checker.IsNil)
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// Check if the service with bad health check (whoami2) never respond.
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err = try.Request(frontendReq, 2*time.Second, try.BodyContains(s.whoami2IP))
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c.Assert(err, checker.Not(checker.IsNil))
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// TODO validate : run on 80
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resp, err := http.Get("http://127.0.0.1:8000/")
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// Expected a 404 as we did not configure anything
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c.Assert(err, checker.IsNil)
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c.Assert(resp.StatusCode, checker.Equals, http.StatusNotFound)
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}
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func (s *HealthCheckSuite) TestMultipleEntrypoints(c *check.C) {
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file := s.adaptFile(c, "fixtures/healthcheck/multiple-entrypoints.toml", struct {
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Server1 string
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Server2 string
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}{s.whoami1IP, s.whoami2IP})
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defer os.Remove(file)
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cmd, display := s.traefikCmd(withConfigFile(file))
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defer display(c)
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err := cmd.Start()
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c.Assert(err, checker.IsNil)
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defer s.killCmd(cmd)
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// Wait for traefik
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err = try.GetRequest("http://localhost:8080/api/rawdata", 60*time.Second, try.BodyContains("Host(`test.localhost`)"))
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c.Assert(err, checker.IsNil)
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// Check entrypoint http1
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frontendHealthReq, err := http.NewRequest(http.MethodGet, "http://127.0.0.1:8000/health", nil)
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c.Assert(err, checker.IsNil)
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frontendHealthReq.Host = "test.localhost"
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err = try.Request(frontendHealthReq, 500*time.Millisecond, try.StatusCodeIs(http.StatusOK))
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c.Assert(err, checker.IsNil)
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// Check entrypoint http2
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frontendHealthReq, err = http.NewRequest(http.MethodGet, "http://127.0.0.1:9000/health", nil)
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c.Assert(err, checker.IsNil)
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frontendHealthReq.Host = "test.localhost"
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err = try.Request(frontendHealthReq, 500*time.Millisecond, try.StatusCodeIs(http.StatusOK))
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c.Assert(err, checker.IsNil)
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// Set the both whoami health to 500
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client := &http.Client{}
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whoamiHosts := []string{s.whoami1IP, s.whoami2IP}
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for _, whoami := range whoamiHosts {
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statusInternalServerErrorReq, err := http.NewRequest(http.MethodPost, "http://"+whoami+"/health", bytes.NewBuffer([]byte("500")))
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c.Assert(err, checker.IsNil)
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_, err = client.Do(statusInternalServerErrorReq)
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c.Assert(err, checker.IsNil)
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}
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// Verify no backend service is available due to failing health checks
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err = try.Request(frontendHealthReq, 5*time.Second, try.StatusCodeIs(http.StatusServiceUnavailable))
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c.Assert(err, checker.IsNil)
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// reactivate the whoami2
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statusInternalServerOkReq, err := http.NewRequest(http.MethodPost, "http://"+s.whoami2IP+"/health", bytes.NewBuffer([]byte("200")))
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c.Assert(err, checker.IsNil)
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_, err = client.Do(statusInternalServerOkReq)
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c.Assert(err, checker.IsNil)
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frontend1Req, err := http.NewRequest(http.MethodGet, "http://127.0.0.1:8000/", nil)
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c.Assert(err, checker.IsNil)
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frontend1Req.Host = "test.localhost"
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frontend2Req, err := http.NewRequest(http.MethodGet, "http://127.0.0.1:9000/", nil)
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c.Assert(err, checker.IsNil)
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frontend2Req.Host = "test.localhost"
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// Check if whoami1 never responds
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err = try.Request(frontend2Req, 2*time.Second, try.BodyContains(s.whoami1IP))
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c.Assert(err, checker.NotNil)
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// Check if whoami1 never responds
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err = try.Request(frontend1Req, 2*time.Second, try.BodyContains(s.whoami1IP))
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c.Assert(err, checker.NotNil)
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}
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func (s *HealthCheckSuite) TestPortOverload(c *check.C) {
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// Set one whoami health to 200
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client := &http.Client{}
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statusInternalServerErrorReq, err := http.NewRequest(http.MethodPost, "http://"+s.whoami1IP+"/health", bytes.NewBuffer([]byte("200")))
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c.Assert(err, checker.IsNil)
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_, err = client.Do(statusInternalServerErrorReq)
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c.Assert(err, checker.IsNil)
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file := s.adaptFile(c, "fixtures/healthcheck/port_overload.toml", struct {
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Server1 string
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}{s.whoami1IP})
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defer os.Remove(file)
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cmd, display := s.traefikCmd(withConfigFile(file))
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defer display(c)
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err = cmd.Start()
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c.Assert(err, checker.IsNil)
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defer s.killCmd(cmd)
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// wait for traefik
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err = try.GetRequest("http://127.0.0.1:8080/api/rawdata", 10*time.Second, try.BodyContains("Host(`test.localhost`)"))
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c.Assert(err, checker.IsNil)
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frontendHealthReq, err := http.NewRequest(http.MethodGet, "http://127.0.0.1:8000/health", nil)
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c.Assert(err, checker.IsNil)
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frontendHealthReq.Host = "test.localhost"
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// We test bad gateway because we use an invalid port for the backend
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err = try.Request(frontendHealthReq, 500*time.Millisecond, try.StatusCodeIs(http.StatusBadGateway))
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c.Assert(err, checker.IsNil)
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// Set one whoami health to 500
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statusInternalServerErrorReq, err = http.NewRequest(http.MethodPost, "http://"+s.whoami1IP+"/health", bytes.NewBuffer([]byte("500")))
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c.Assert(err, checker.IsNil)
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_, err = client.Do(statusInternalServerErrorReq)
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c.Assert(err, checker.IsNil)
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// Verify no backend service is available due to failing health checks
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err = try.Request(frontendHealthReq, 3*time.Second, try.StatusCodeIs(http.StatusServiceUnavailable))
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c.Assert(err, checker.IsNil)
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}
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// Checks if all the loadbalancers created will correctly update the server status.
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func (s *HealthCheckSuite) TestMultipleRoutersOnSameService(c *check.C) {
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file := s.adaptFile(c, "fixtures/healthcheck/multiple-routers-one-same-service.toml", struct {
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Server1 string
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}{s.whoami1IP})
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defer os.Remove(file)
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cmd, display := s.traefikCmd(withConfigFile(file))
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defer display(c)
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err := cmd.Start()
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c.Assert(err, checker.IsNil)
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defer s.killCmd(cmd)
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// wait for traefik
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err = try.GetRequest("http://127.0.0.1:8080/api/rawdata", 60*time.Second, try.BodyContains("Host(`test.localhost`)"))
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c.Assert(err, checker.IsNil)
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// Set whoami health to 200 to be sure to start with the wanted status
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client := &http.Client{}
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statusOkReq, err := http.NewRequest(http.MethodPost, "http://"+s.whoami1IP+"/health", bytes.NewBuffer([]byte("200")))
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c.Assert(err, checker.IsNil)
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_, err = client.Do(statusOkReq)
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c.Assert(err, checker.IsNil)
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// check healthcheck on web1 entrypoint
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healthReqWeb1, err := http.NewRequest(http.MethodGet, "http://127.0.0.1:8000/health", nil)
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c.Assert(err, checker.IsNil)
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healthReqWeb1.Host = "test.localhost"
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err = try.Request(healthReqWeb1, 1*time.Second, try.StatusCodeIs(http.StatusOK))
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c.Assert(err, checker.IsNil)
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// check healthcheck on web2 entrypoint
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healthReqWeb2, err := http.NewRequest(http.MethodGet, "http://127.0.0.1:9000/health", nil)
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c.Assert(err, checker.IsNil)
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healthReqWeb2.Host = "test.localhost"
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err = try.Request(healthReqWeb2, 500*time.Millisecond, try.StatusCodeIs(http.StatusOK))
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c.Assert(err, checker.IsNil)
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// Set whoami health to 500
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statusInternalServerErrorReq, err := http.NewRequest(http.MethodPost, "http://"+s.whoami1IP+"/health", bytes.NewBuffer([]byte("500")))
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c.Assert(err, checker.IsNil)
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_, err = client.Do(statusInternalServerErrorReq)
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c.Assert(err, checker.IsNil)
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// Verify no backend service is available due to failing health checks
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err = try.Request(healthReqWeb1, 3*time.Second, try.StatusCodeIs(http.StatusServiceUnavailable))
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c.Assert(err, checker.IsNil)
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err = try.Request(healthReqWeb2, 3*time.Second, try.StatusCodeIs(http.StatusServiceUnavailable))
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c.Assert(err, checker.IsNil)
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// Change one whoami health to 200
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statusOKReq1, err := http.NewRequest(http.MethodPost, "http://"+s.whoami1IP+"/health", bytes.NewBuffer([]byte("200")))
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c.Assert(err, checker.IsNil)
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_, err = client.Do(statusOKReq1)
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c.Assert(err, checker.IsNil)
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// Verify health check
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err = try.Request(healthReqWeb1, 3*time.Second, try.StatusCodeIs(http.StatusOK))
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c.Assert(err, checker.IsNil)
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err = try.Request(healthReqWeb2, 3*time.Second, try.StatusCodeIs(http.StatusOK))
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c.Assert(err, checker.IsNil)
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}
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func (s *HealthCheckSuite) TestPropagate(c *check.C) {
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file := s.adaptFile(c, "fixtures/healthcheck/propagate.toml", struct {
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Server1 string
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Server2 string
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Server3 string
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Server4 string
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}{s.whoami1IP, s.whoami2IP, s.whoami3IP, s.whoami4IP})
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defer os.Remove(file)
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cmd, display := s.traefikCmd(withConfigFile(file))
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defer display(c)
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err := cmd.Start()
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c.Assert(err, checker.IsNil)
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defer s.killCmd(cmd)
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// wait for traefik
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err = try.GetRequest("http://127.0.0.1:8080/api/rawdata", 60*time.Second, try.BodyContains("Host(`root.localhost`)"))
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c.Assert(err, checker.IsNil)
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rootReq, err := http.NewRequest(http.MethodGet, "http://127.0.0.1:8000", nil)
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c.Assert(err, checker.IsNil)
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rootReq.Host = "root.localhost"
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err = try.Request(rootReq, 500*time.Millisecond, try.StatusCodeIs(http.StatusOK))
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c.Assert(err, checker.IsNil)
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// Bring whoami1 and whoami3 down
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client := http.Client{
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Timeout: 10 * time.Second,
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}
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whoamiHosts := []string{s.whoami1IP, s.whoami3IP}
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for _, whoami := range whoamiHosts {
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statusInternalServerErrorReq, err := http.NewRequest(http.MethodPost, "http://"+whoami+"/health", bytes.NewBuffer([]byte("500")))
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c.Assert(err, checker.IsNil)
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_, err = client.Do(statusInternalServerErrorReq)
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c.Assert(err, checker.IsNil)
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}
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try.Sleep(time.Second)
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// Verify load-balancing on root still works, and that we're getting wsp2, wsp4, wsp2, wsp4, etc.
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var want string
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for i := 0; i < 4; i++ {
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if i%2 == 0 {
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want = `IP: ` + s.whoami4IP
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} else {
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want = `IP: ` + s.whoami2IP
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}
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resp, err := client.Do(rootReq)
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c.Assert(err, checker.IsNil)
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body, err := ioutil.ReadAll(resp.Body)
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c.Assert(err, checker.IsNil)
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c.Assert(string(body), checker.Contains, want)
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}
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fooReq, err := http.NewRequest(http.MethodGet, "http://127.0.0.1:8000", nil)
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c.Assert(err, checker.IsNil)
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fooReq.Host = "foo.localhost"
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// Verify load-balancing on foo still works, and that we're getting wsp2, wsp2, wsp2, wsp2, etc.
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want = `IP: ` + s.whoami2IP
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for i := 0; i < 4; i++ {
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resp, err := client.Do(fooReq)
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c.Assert(err, checker.IsNil)
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body, err := ioutil.ReadAll(resp.Body)
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c.Assert(err, checker.IsNil)
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c.Assert(string(body), checker.Contains, want)
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}
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barReq, err := http.NewRequest(http.MethodGet, "http://127.0.0.1:8000", nil)
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c.Assert(err, checker.IsNil)
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barReq.Host = "bar.localhost"
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// Verify load-balancing on bar still works, and that we're getting wsp2, wsp2, wsp2, wsp2, etc.
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want = `IP: ` + s.whoami2IP
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for i := 0; i < 4; i++ {
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resp, err := client.Do(barReq)
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c.Assert(err, checker.IsNil)
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body, err := ioutil.ReadAll(resp.Body)
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c.Assert(err, checker.IsNil)
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c.Assert(string(body), checker.Contains, want)
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}
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// Bring whoami2 and whoami4 down
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whoamiHosts = []string{s.whoami2IP, s.whoami4IP}
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for _, whoami := range whoamiHosts {
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statusInternalServerErrorReq, err := http.NewRequest(http.MethodPost, "http://"+whoami+"/health", bytes.NewBuffer([]byte("500")))
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c.Assert(err, checker.IsNil)
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_, err = client.Do(statusInternalServerErrorReq)
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c.Assert(err, checker.IsNil)
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}
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try.Sleep(time.Second)
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// Verify that everything is down, and that we get 503s everywhere.
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for i := 0; i < 2; i++ {
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resp, err := client.Do(rootReq)
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c.Assert(err, checker.IsNil)
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c.Assert(resp.StatusCode, checker.Equals, http.StatusServiceUnavailable)
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resp, err = client.Do(fooReq)
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c.Assert(err, checker.IsNil)
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c.Assert(resp.StatusCode, checker.Equals, http.StatusServiceUnavailable)
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resp, err = client.Do(barReq)
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c.Assert(err, checker.IsNil)
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c.Assert(resp.StatusCode, checker.Equals, http.StatusServiceUnavailable)
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}
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// Bring everything back up.
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whoamiHosts = []string{s.whoami1IP, s.whoami2IP, s.whoami3IP, s.whoami4IP}
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for _, whoami := range whoamiHosts {
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statusOKReq, err := http.NewRequest(http.MethodPost, "http://"+whoami+"/health", bytes.NewBuffer([]byte("200")))
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c.Assert(err, checker.IsNil)
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_, err = client.Do(statusOKReq)
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c.Assert(err, checker.IsNil)
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}
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try.Sleep(time.Second)
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// Verify everything is up on root router.
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wantIPs := []string{s.whoami3IP, s.whoami1IP, s.whoami4IP, s.whoami2IP}
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for i := 0; i < 4; i++ {
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want := `IP: ` + wantIPs[i]
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resp, err := client.Do(rootReq)
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c.Assert(err, checker.IsNil)
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body, err := ioutil.ReadAll(resp.Body)
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c.Assert(err, checker.IsNil)
|
|
|
|
c.Assert(string(body), checker.Contains, want)
|
|
}
|
|
|
|
// Verify everything is up on foo router.
|
|
wantIPs = []string{s.whoami1IP, s.whoami1IP, s.whoami3IP, s.whoami2IP}
|
|
for i := 0; i < 4; i++ {
|
|
want := `IP: ` + wantIPs[i]
|
|
resp, err := client.Do(fooReq)
|
|
c.Assert(err, checker.IsNil)
|
|
|
|
body, err := ioutil.ReadAll(resp.Body)
|
|
c.Assert(err, checker.IsNil)
|
|
|
|
c.Assert(string(body), checker.Contains, want)
|
|
}
|
|
|
|
// Verify everything is up on bar router.
|
|
wantIPs = []string{s.whoami1IP, s.whoami1IP, s.whoami3IP, s.whoami2IP}
|
|
for i := 0; i < 4; i++ {
|
|
want := `IP: ` + wantIPs[i]
|
|
resp, err := client.Do(barReq)
|
|
c.Assert(err, checker.IsNil)
|
|
|
|
body, err := ioutil.ReadAll(resp.Body)
|
|
c.Assert(err, checker.IsNil)
|
|
|
|
c.Assert(string(body), checker.Contains, want)
|
|
}
|
|
}
|
|
|
|
func (s *HealthCheckSuite) TestPropagateNoHealthCheck(c *check.C) {
|
|
file := s.adaptFile(c, "fixtures/healthcheck/propagate_no_healthcheck.toml", struct {
|
|
Server1 string
|
|
}{s.whoami1IP})
|
|
defer os.Remove(file)
|
|
|
|
cmd, display := s.traefikCmd(withConfigFile(file))
|
|
defer display(c)
|
|
err := cmd.Start()
|
|
c.Assert(err, checker.IsNil)
|
|
defer s.killCmd(cmd)
|
|
|
|
// wait for traefik
|
|
err = try.GetRequest("http://127.0.0.1:8080/api/rawdata", 60*time.Second, try.BodyContains("Host(`noop.localhost`)"), try.BodyNotContains("Host(`root.localhost`)"))
|
|
c.Assert(err, checker.IsNil)
|
|
|
|
rootReq, err := http.NewRequest(http.MethodGet, "http://127.0.0.1:8000", nil)
|
|
c.Assert(err, checker.IsNil)
|
|
rootReq.Host = "root.localhost"
|
|
|
|
err = try.Request(rootReq, 500*time.Millisecond, try.StatusCodeIs(http.StatusNotFound))
|
|
c.Assert(err, checker.IsNil)
|
|
}
|
|
|
|
func (s *HealthCheckSuite) TestPropagateReload(c *check.C) {
|
|
// Setup a WSP service without the healthcheck enabled (wsp-service1)
|
|
withoutHealthCheck := s.adaptFile(c, "fixtures/healthcheck/reload_without_healthcheck.toml", struct {
|
|
Server1 string
|
|
Server2 string
|
|
}{s.whoami1IP, s.whoami2IP})
|
|
defer os.Remove(withoutHealthCheck)
|
|
withHealthCheck := s.adaptFile(c, "fixtures/healthcheck/reload_with_healthcheck.toml", struct {
|
|
Server1 string
|
|
Server2 string
|
|
}{s.whoami1IP, s.whoami2IP})
|
|
defer os.Remove(withHealthCheck)
|
|
|
|
cmd, display := s.traefikCmd(withConfigFile(withoutHealthCheck))
|
|
defer display(c)
|
|
err := cmd.Start()
|
|
c.Assert(err, checker.IsNil)
|
|
defer s.killCmd(cmd)
|
|
|
|
// wait for traefik
|
|
err = try.GetRequest("http://127.0.0.1:8080/api/rawdata", 60*time.Second, try.BodyContains("Host(`root.localhost`)"))
|
|
c.Assert(err, checker.IsNil)
|
|
|
|
// Allow one of the underlying services on it to fail all servers HC (whoami2)
|
|
client := http.Client{
|
|
Timeout: 10 * time.Second,
|
|
}
|
|
statusOKReq, err := http.NewRequest(http.MethodPost, "http://"+s.whoami2IP+"/health", bytes.NewBuffer([]byte("500")))
|
|
c.Assert(err, checker.IsNil)
|
|
_, err = client.Do(statusOKReq)
|
|
c.Assert(err, checker.IsNil)
|
|
|
|
rootReq, err := http.NewRequest(http.MethodGet, "http://127.0.0.1:8000", nil)
|
|
c.Assert(err, checker.IsNil)
|
|
rootReq.Host = "root.localhost"
|
|
|
|
// Check the failed service (whoami2) is getting requests, but answer 500
|
|
err = try.Request(rootReq, 500*time.Millisecond, try.StatusCodeIs(http.StatusServiceUnavailable))
|
|
c.Assert(err, checker.IsNil)
|
|
|
|
// Enable the healthcheck on the root WSP (wsp-service1) and let Traefik reload the config
|
|
fr1, err := os.OpenFile(withoutHealthCheck, os.O_APPEND|os.O_WRONLY, 0o644)
|
|
c.Assert(fr1, checker.NotNil)
|
|
c.Assert(err, checker.IsNil)
|
|
err = fr1.Truncate(0)
|
|
c.Assert(err, checker.IsNil)
|
|
|
|
fr2, err := os.ReadFile(withHealthCheck)
|
|
c.Assert(err, checker.IsNil)
|
|
_, err = fmt.Fprint(fr1, string(fr2))
|
|
c.Assert(err, checker.IsNil)
|
|
err = fr1.Close()
|
|
c.Assert(err, checker.IsNil)
|
|
|
|
try.Sleep(1 * time.Second)
|
|
|
|
// Check the failed service (whoami2) is not getting requests
|
|
wantIPs := []string{s.whoami1IP, s.whoami1IP, s.whoami1IP, s.whoami1IP}
|
|
for _, ip := range wantIPs {
|
|
want := "IP: " + ip
|
|
resp, err := client.Do(rootReq)
|
|
c.Assert(err, checker.IsNil)
|
|
|
|
body, err := ioutil.ReadAll(resp.Body)
|
|
c.Assert(err, checker.IsNil)
|
|
|
|
c.Assert(string(body), checker.Contains, want)
|
|
}
|
|
}
|