Refactor providers and add tests

- Add a `baseProvider` struct with common
- Refactor docker, kv(s) and marathon providers (spliting into small pieces)
- Add unit tests

Signed-off-by: Vincent Demeester <vincent@sbr.pm>

integration/file_test.go

@@ -15,7 +15,7 @@ func (s *FileSuite) TestSimpleConfiguration(c *check.C) {
 	c.Assert(err, checker.IsNil)
 	defer cmd.Process.Kill()
 
-	time.Sleep(500 * time.Millisecond)
+	time.Sleep(1000 * time.Millisecond)
 	resp, err := http.Get("http://127.0.0.1/")
 
 	// Expected a 404 as we did not configure anything
@@ -30,7 +30,7 @@ func (s *FileSuite) TestSimpleConfigurationNoPanic(c *check.C) {
 	c.Assert(err, checker.IsNil)
 	defer cmd.Process.Kill()
 
-	time.Sleep(500 * time.Millisecond)
+	time.Sleep(1000 * time.Millisecond)
 	resp, err := http.Get("http://127.0.0.1/")
 
 	// Expected a 404 as we did not configure anything

provider/boltdb.go

@@ -1,19 +1,20 @@
 package provider
 
-import "github.com/emilevauge/traefik/types"
+import (
+	"github.com/docker/libkv/store"
+	"github.com/docker/libkv/store/boltdb"
+	"github.com/emilevauge/traefik/types"
+)
 
 // BoltDb holds configurations of the BoltDb provider.
 type BoltDb struct {
-	Watch      bool
-	Endpoint   string
-	Prefix     string
-	Filename   string
-	KvProvider *Kv
+	Kv
 }
 
 // Provide allows the provider to provide configurations to traefik
 // using the given configuration channel.
 func (provider *BoltDb) Provide(configurationChan chan<- types.ConfigMessage) error {
-	provider.KvProvider = NewBoltDbProvider(provider)
-	return provider.KvProvider.provide(configurationChan)
+	provider.StoreType = store.BOLTDB
+	boltdb.Register()
+	return provider.provide(configurationChan)
 }

provider/consul.go

@@ -1,19 +1,20 @@
 package provider
 
-import "github.com/emilevauge/traefik/types"
+import (
+	"github.com/docker/libkv/store"
+	"github.com/docker/libkv/store/consul"
+	"github.com/emilevauge/traefik/types"
+)
 
 // Consul holds configurations of the Consul provider.
 type Consul struct {
-	Watch      bool
-	Endpoint   string
-	Prefix     string
-	Filename   string
-	KvProvider *Kv
+	Kv
 }
 
 // Provide allows the provider to provide configurations to traefik
 // using the given configuration channel.
 func (provider *Consul) Provide(configurationChan chan<- types.ConfigMessage) error {
-	provider.KvProvider = NewConsulProvider(provider)
-	return provider.KvProvider.provide(configurationChan)
+	provider.StoreType = store.CONSUL
+	consul.Register()
+	return provider.provide(configurationChan)
 }

provider/docker.go

@@ -1,7 +1,6 @@
 package provider
 
 import (
-	"bytes"
 	"errors"
 	"fmt"
 	"strconv"
@@ -9,20 +8,17 @@ import (
 	"text/template"
 	"time"
 
-	"github.com/BurntSushi/toml"
 	"github.com/BurntSushi/ty/fun"
 	log "github.com/Sirupsen/logrus"
 	"github.com/cenkalti/backoff"
-	"github.com/emilevauge/traefik/autogen"
 	"github.com/emilevauge/traefik/types"
 	"github.com/fsouza/go-dockerclient"
 )
 
 // Docker holds configurations of the Docker provider.
 type Docker struct {
-	Watch    bool
+	baseProvider
 	Endpoint string
-	Filename string
 	Domain   string
 }
 
@@ -55,9 +51,12 @@ func (provider *Docker) Provide(configurationChan chan<- types.ConfigMessage) er
 					}
 					if event.Status == "start" || event.Status == "die" {
 						log.Debugf("Docker event receveived %+v", event)
-						configuration := provider.loadDockerConfig(dockerClient)
+						configuration := provider.loadDockerConfig(listContainers(dockerClient))
 						if configuration != nil {
-							configurationChan <- types.ConfigMessage{"docker", configuration}
+							configurationChan <- types.ConfigMessage{
+								ProviderName:  "docker",
+								Configuration: configuration,
+							}
 						}
 					}
 				}
@@ -72,94 +71,31 @@ func (provider *Docker) Provide(configurationChan chan<- types.ConfigMessage) er
 		}()
 	}
 
-	configuration := provider.loadDockerConfig(dockerClient)
-	configurationChan <- types.ConfigMessage{"docker", configuration}
+	configuration := provider.loadDockerConfig(listContainers(dockerClient))
+	configurationChan <- types.ConfigMessage{
+		ProviderName:  "docker",
+		Configuration: configuration,
+	}
 	return nil
 }
 
-func (provider *Docker) loadDockerConfig(dockerClient *docker.Client) *types.Configuration {
+func (provider *Docker) loadDockerConfig(containersInspected []docker.Container) *types.Configuration {
 	var DockerFuncMap = template.FuncMap{
-		"getBackend": func(container docker.Container) string {
-			if label, err := provider.getLabel(container, "traefik.backend"); err == nil {
-				return label
-			}
-			return provider.getEscapedName(container.Name)
-		},
-		"getPort": func(container docker.Container) string {
-			if label, err := provider.getLabel(container, "traefik.port"); err == nil {
-				return label
-			}
-			for key := range container.NetworkSettings.Ports {
-				return key.Port()
-			}
-			return ""
-		},
-		"getWeight": func(container docker.Container) string {
-			if label, err := provider.getLabel(container, "traefik.weight"); err == nil {
-				return label
-			}
-			return "0"
-		},
-		"getDomain": func(container docker.Container) string {
-			if label, err := provider.getLabel(container, "traefik.domain"); err == nil {
-				return label
-			}
-			return provider.Domain
-		},
-		"getProtocol": func(container docker.Container) string {
-			if label, err := provider.getLabel(container, "traefik.protocol"); err == nil {
-				return label
-			}
-			return "http"
-		},
-		"getPassHostHeader": func(container docker.Container) string {
-			if passHostHeader, err := provider.getLabel(container, "traefik.frontend.passHostHeader"); err == nil {
-				return passHostHeader
-			}
-			return "false"
-		},
-		"getFrontendValue": provider.GetFrontendValue,
-		"getFrontendRule":  provider.GetFrontendRule,
-		"replace": func(s1 string, s2 string, s3 string) string {
-			return strings.Replace(s3, s1, s2, -1)
-		},
-	}
-	configuration := new(types.Configuration)
-	containerList, _ := dockerClient.ListContainers(docker.ListContainersOptions{})
-	containersInspected := []docker.Container{}
-	frontends := map[string][]docker.Container{}
-
-	// get inspect containers
-	for _, container := range containerList {
-		containerInspected, _ := dockerClient.InspectContainer(container.ID)
-		containersInspected = append(containersInspected, *containerInspected)
+		"getBackend":        provider.getBackend,
+		"getPort":           provider.getPort,
+		"getWeight":         provider.getWeight,
+		"getDomain":         provider.getDomain,
+		"getProtocol":       provider.getProtocol,
+		"getPassHostHeader": provider.getPassHostHeader,
+		"getFrontendValue":  provider.getFrontendValue,
+		"getFrontendRule":   provider.getFrontendRule,
+		"replace":           replace,
 	}
 
 	// filter containers
-	filteredContainers := fun.Filter(func(container docker.Container) bool {
-		if len(container.NetworkSettings.Ports) == 0 {
-			log.Debugf("Filtering container without port %s", container.Name)
-			return false
-		}
-		_, err := strconv.Atoi(container.Config.Labels["traefik.port"])
-		if len(container.NetworkSettings.Ports) > 1 && err != nil {
-			log.Debugf("Filtering container with more than 1 port and no traefik.port label %s", container.Name)
-			return false
-		}
-		if container.Config.Labels["traefik.enable"] == "false" {
-			log.Debugf("Filtering disabled container %s", container.Name)
-			return false
-		}
-
-		labels, err := provider.getLabels(container, []string{"traefik.frontend.rule", "traefik.frontend.value"})
-		if len(labels) != 0 && err != nil {
-			log.Debugf("Filtering bad labeled container %s", container.Name)
-			return false
-		}
-
-		return true
-	}, containersInspected).([]docker.Container)
+	filteredContainers := fun.Filter(containerFilter, containersInspected).([]docker.Container)
 
+	frontends := map[string][]docker.Container{}
 	for _, container := range filteredContainers {
 		frontends[provider.getFrontendName(container)] = append(frontends[provider.getFrontendName(container)], container)
 	}
@@ -173,53 +109,112 @@ func (provider *Docker) loadDockerConfig(dockerClient *docker.Client) *types.Con
 		frontends,
 		provider.Domain,
 	}
-	tmpl := template.New(provider.Filename).Funcs(DockerFuncMap)
-	if len(provider.Filename) > 0 {
-		_, err := tmpl.ParseFiles(provider.Filename)
-		if err != nil {
-			log.Error("Error reading file", err)
-			return nil
-		}
-	} else {
-		buf, err := autogen.Asset("templates/docker.tmpl")
-		if err != nil {
-			log.Error("Error reading file", err)
-		}
-		_, err = tmpl.Parse(string(buf))
-		if err != nil {
-			log.Error("Error reading file", err)
-			return nil
-		}
-	}
 
-	var buffer bytes.Buffer
-	err := tmpl.Execute(&buffer, templateObjects)
+	configuration, err := provider.getConfiguration("templates/docker.tmpl", DockerFuncMap, templateObjects)
 	if err != nil {
-		log.Error("Error with docker template", err)
-		return nil
-	}
-
-	if _, err := toml.Decode(buffer.String(), configuration); err != nil {
-		log.Error("Error creating docker configuration ", err)
-		return nil
+		log.Error(err)
 	}
 	return configuration
 }
 
+func containerFilter(container docker.Container) bool {
+	if len(container.NetworkSettings.Ports) == 0 {
+		log.Debugf("Filtering container without port %s", container.Name)
+		return false
+	}
+	_, err := strconv.Atoi(container.Config.Labels["traefik.port"])
+	if len(container.NetworkSettings.Ports) > 1 && err != nil {
+		log.Debugf("Filtering container with more than 1 port and no traefik.port label %s", container.Name)
+		return false
+	}
+
+	if container.Config.Labels["traefik.enable"] == "false" {
+		log.Debugf("Filtering disabled container %s", container.Name)
+		return false
+	}
+
+	labels, err := getLabels(container, []string{"traefik.frontend.rule", "traefik.frontend.value"})
+	if len(labels) != 0 && err != nil {
+		log.Debugf("Filtering bad labeled container %s", container.Name)
+		return false
+	}
+
+	return true
+}
+
 func (provider *Docker) getFrontendName(container docker.Container) string {
 	// Replace '.' with '-' in quoted keys because of this issue https://github.com/BurntSushi/toml/issues/78
-	frontendName := fmt.Sprintf("%s-%s", provider.GetFrontendRule(container), provider.GetFrontendValue(container))
+	frontendName := fmt.Sprintf("%s-%s", provider.getFrontendRule(container), provider.getFrontendValue(container))
 	frontendName = strings.Replace(frontendName, "[", "", -1)
 	frontendName = strings.Replace(frontendName, "]", "", -1)
 
 	return strings.Replace(frontendName, ".", "-", -1)
 }
 
-func (provider *Docker) getEscapedName(name string) string {
-	return strings.Replace(name, "/", "", -1)
+// GetFrontendValue returns the frontend value for the specified container, using
+// it's label. It returns a default one if the label is not present.
+func (provider *Docker) getFrontendValue(container docker.Container) string {
+	if label, err := getLabel(container, "traefik.frontend.value"); err == nil {
+		return label
+	}
+	return getEscapedName(container.Name) + "." + provider.Domain
 }
 
-func (provider *Docker) getLabel(container docker.Container, label string) (string, error) {
+// GetFrontendRule returns the frontend rule for the specified container, using
+// it's label. It returns a default one (Host) if the label is not present.
+func (provider *Docker) getFrontendRule(container docker.Container) string {
+	if label, err := getLabel(container, "traefik.frontend.rule"); err == nil {
+		return label
+	}
+	return "Host"
+}
+
+func (provider *Docker) getBackend(container docker.Container) string {
+	if label, err := getLabel(container, "traefik.backend"); err == nil {
+		return label
+	}
+	return getEscapedName(container.Name)
+}
+
+func (provider *Docker) getPort(container docker.Container) string {
+	if label, err := getLabel(container, "traefik.port"); err == nil {
+		return label
+	}
+	for key := range container.NetworkSettings.Ports {
+		return key.Port()
+	}
+	return ""
+}
+
+func (provider *Docker) getWeight(container docker.Container) string {
+	if label, err := getLabel(container, "traefik.weight"); err == nil {
+		return label
+	}
+	return "0"
+}
+
+func (provider *Docker) getDomain(container docker.Container) string {
+	if label, err := getLabel(container, "traefik.domain"); err == nil {
+		return label
+	}
+	return provider.Domain
+}
+
+func (provider *Docker) getProtocol(container docker.Container) string {
+	if label, err := getLabel(container, "traefik.protocol"); err == nil {
+		return label
+	}
+	return "http"
+}
+
+func (provider *Docker) getPassHostHeader(container docker.Container) string {
+	if passHostHeader, err := getLabel(container, "traefik.frontend.passHostHeader"); err == nil {
+		return passHostHeader
+	}
+	return "false"
+}
+
+func getLabel(container docker.Container, label string) (string, error) {
 	for key, value := range container.Config.Labels {
 		if key == label {
 			return value, nil
@@ -228,11 +223,11 @@ func (provider *Docker) getLabel(container docker.Container, label string) (stri
 	return "", errors.New("Label not found:" + label)
 }
 
-func (provider *Docker) getLabels(container docker.Container, labels []string) (map[string]string, error) {
+func getLabels(container docker.Container, labels []string) (map[string]string, error) {
 	var globalErr error
 	foundLabels := map[string]string{}
 	for _, label := range labels {
-		foundLabel, err := provider.getLabel(container, label)
+		foundLabel, err := getLabel(container, label)
 		// Error out only if one of them is defined.
 		if err != nil {
 			globalErr = errors.New("Label not found: " + label)
@@ -244,20 +239,14 @@ func (provider *Docker) getLabels(container docker.Container, labels []string) (
 	return foundLabels, globalErr
 }
 
-// GetFrontendValue returns the frontend value for the specified container, using
-// it's label. It returns a default one if the label is not present.
-func (provider *Docker) GetFrontendValue(container docker.Container) string {
-	if label, err := provider.getLabel(container, "traefik.frontend.value"); err == nil {
-		return label
-	}
-	return provider.getEscapedName(container.Name) + "." + provider.Domain
-}
+func listContainers(dockerClient *docker.Client) []docker.Container {
+	containerList, _ := dockerClient.ListContainers(docker.ListContainersOptions{})
+	containersInspected := []docker.Container{}
 
-// GetFrontendRule returns the frontend rule for the specified container, using
-// it's label. It returns a default one (Host) if the label is not present.
-func (provider *Docker) GetFrontendRule(container docker.Container) string {
-	if label, err := provider.getLabel(container, "traefik.frontend.rule"); err == nil {
-		return label
+	// get inspect containers
+	for _, container := range containerList {
+		containerInspected, _ := dockerClient.InspectContainer(container.ID)
+		containersInspected = append(containersInspected, *containerInspected)
 	}
-	return "Host"
+	return containersInspected
 }

provider/docker_test.go

@@ -0,0 +1,788 @@
+package provider
+
+import (
+	"reflect"
+	"strings"
+	"testing"
+
+	"github.com/emilevauge/traefik/types"
+	"github.com/fsouza/go-dockerclient"
+)
+
+func TestDockerGetFrontendName(t *testing.T) {
+	provider := &Docker{
+		Domain: "docker.localhost",
+	}
+
+	containers := []struct {
+		container docker.Container
+		expected  string
+	}{
+		{
+			container: docker.Container{
+				Name:   "foo",
+				Config: &docker.Config{},
+			},
+			expected: "Host-foo-docker-localhost",
+		},
+		{
+			container: docker.Container{
+				Name: "bar",
+				Config: &docker.Config{
+					Labels: map[string]string{
+						"traefik.frontend.rule": "Header",
+					},
+				},
+			},
+			expected: "Header-bar-docker-localhost",
+		},
+		{
+			container: docker.Container{
+				Name: "test",
+				Config: &docker.Config{
+					Labels: map[string]string{
+						"traefik.frontend.value": "foo.bar",
+					},
+				},
+			},
+			expected: "Host-foo-bar",
+		},
+		{
+			container: docker.Container{
+				Name: "test",
+				Config: &docker.Config{
+					Labels: map[string]string{
+						"traefik.frontend.value": "foo.bar",
+						"traefik.frontend.rule":  "Header",
+					},
+				},
+			},
+			expected: "Header-foo-bar",
+		},
+		{
+			container: docker.Container{
+				Name: "test",
+				Config: &docker.Config{
+					Labels: map[string]string{
+						"traefik.frontend.value": "[foo.bar]",
+						"traefik.frontend.rule":  "Header",
+					},
+				},
+			},
+			expected: "Header-foo-bar",
+		},
+	}
+
+	for _, e := range containers {
+		actual := provider.getFrontendName(e.container)
+		if actual != e.expected {
+			t.Fatalf("expected %q, got %q", e.expected, actual)
+		}
+	}
+}
+
+func TestDockerGetFrontendValue(t *testing.T) {
+	provider := &Docker{
+		Domain: "docker.localhost",
+	}
+
+	containers := []struct {
+		container docker.Container
+		expected  string
+	}{
+		{
+			container: docker.Container{
+				Name:   "foo",
+				Config: &docker.Config{},
+			},
+			expected: "foo.docker.localhost",
+		},
+		{
+			container: docker.Container{
+				Name:   "bar",
+				Config: &docker.Config{},
+			},
+			expected: "bar.docker.localhost",
+		},
+		{
+			container: docker.Container{
+				Name: "test",
+				Config: &docker.Config{
+					Labels: map[string]string{
+						"traefik.frontend.value": "foo.bar",
+					},
+				},
+			},
+			expected: "foo.bar",
+		},
+	}
+
+	for _, e := range containers {
+		actual := provider.getFrontendValue(e.container)
+		if actual != e.expected {
+			t.Fatalf("expected %q, got %q", e.expected, actual)
+		}
+	}
+}
+
+func TestDockerGetFrontendRule(t *testing.T) {
+	provider := &Docker{}
+
+	containers := []struct {
+		container docker.Container
+		expected  string
+	}{
+		{
+			container: docker.Container{
+				Name:   "foo",
+				Config: &docker.Config{},
+			},
+			expected: "Host",
+		},
+		{
+			container: docker.Container{
+				Name: "test",
+				Config: &docker.Config{
+					Labels: map[string]string{
+						"traefik.frontend.rule": "foo",
+					},
+				},
+			},
+			expected: "foo",
+		},
+	}
+
+	for _, e := range containers {
+		actual := provider.getFrontendRule(e.container)
+		if actual != e.expected {
+			t.Fatalf("expected %q, got %q", e.expected, actual)
+		}
+	}
+}
+
+func TestDockerGetBackend(t *testing.T) {
+	provider := &Docker{}
+
+	containers := []struct {
+		container docker.Container
+		expected  string
+	}{
+		{
+			container: docker.Container{
+				Name:   "foo",
+				Config: &docker.Config{},
+			},
+			expected: "foo",
+		},
+		{
+			container: docker.Container{
+				Name:   "bar",
+				Config: &docker.Config{},
+			},
+			expected: "bar",
+		},
+		{
+			container: docker.Container{
+				Name: "test",
+				Config: &docker.Config{
+					Labels: map[string]string{
+						"traefik.backend": "foobar",
+					},
+				},
+			},
+			expected: "foobar",
+		},
+	}
+
+	for _, e := range containers {
+		actual := provider.getBackend(e.container)
+		if actual != e.expected {
+			t.Fatalf("expected %q, got %q", e.expected, actual)
+		}
+	}
+}
+
+func TestDockerGetPort(t *testing.T) {
+	provider := &Docker{}
+
+	containers := []struct {
+		container docker.Container
+		expected  string
+	}{
+		{
+			container: docker.Container{
+				Name:            "foo",
+				Config:          &docker.Config{},
+				NetworkSettings: &docker.NetworkSettings{},
+			},
+			expected: "",
+		},
+		{
+			container: docker.Container{
+				Name:   "bar",
+				Config: &docker.Config{},
+				NetworkSettings: &docker.NetworkSettings{
+					Ports: map[docker.Port][]docker.PortBinding{
+						"80/tcp": {},
+					},
+				},
+			},
+			expected: "80",
+		},
+		// FIXME handle this better..
+		// {
+		// 	container: docker.Container{
+		// 		Name:   "bar",
+		// 		Config: &docker.Config{},
+		// 		NetworkSettings: &docker.NetworkSettings{
+		// 			Ports: map[docker.Port][]docker.PortBinding{
+		// 				"80/tcp":  []docker.PortBinding{},
+		// 				"443/tcp": []docker.PortBinding{},
+		// 			},
+		// 		},
+		// 	},
+		// 	expected: "80",
+		// },
+		{
+			container: docker.Container{
+				Name: "test",
+				Config: &docker.Config{
+					Labels: map[string]string{
+						"traefik.port": "8080",
+					},
+				},
+				NetworkSettings: &docker.NetworkSettings{
+					Ports: map[docker.Port][]docker.PortBinding{
+						"80/tcp": {},
+					},
+				},
+			},
+			expected: "8080",
+		},
+	}
+
+	for _, e := range containers {
+		actual := provider.getPort(e.container)
+		if actual != e.expected {
+			t.Fatalf("expected %q, got %q", e.expected, actual)
+		}
+	}
+}
+
+func TestDockerGetWeight(t *testing.T) {
+	provider := &Docker{}
+
+	containers := []struct {
+		container docker.Container
+		expected  string
+	}{
+		{
+			container: docker.Container{
+				Name:   "foo",
+				Config: &docker.Config{},
+			},
+			expected: "0",
+		},
+		{
+			container: docker.Container{
+				Name: "test",
+				Config: &docker.Config{
+					Labels: map[string]string{
+						"traefik.weight": "10",
+					},
+				},
+			},
+			expected: "10",
+		},
+	}
+
+	for _, e := range containers {
+		actual := provider.getWeight(e.container)
+		if actual != e.expected {
+			t.Fatalf("expected %q, got %q", e.expected, actual)
+		}
+	}
+}
+
+func TestDockerGetDomain(t *testing.T) {
+	provider := &Docker{
+		Domain: "docker.localhost",
+	}
+
+	containers := []struct {
+		container docker.Container
+		expected  string
+	}{
+		{
+			container: docker.Container{
+				Name:   "foo",
+				Config: &docker.Config{},
+			},
+			expected: "docker.localhost",
+		},
+		{
+			container: docker.Container{
+				Name: "test",
+				Config: &docker.Config{
+					Labels: map[string]string{
+						"traefik.domain": "foo.bar",
+					},
+				},
+			},
+			expected: "foo.bar",
+		},
+	}
+
+	for _, e := range containers {
+		actual := provider.getDomain(e.container)
+		if actual != e.expected {
+			t.Fatalf("expected %q, got %q", e.expected, actual)
+		}
+	}
+}
+
+func TestDockerGetProtocol(t *testing.T) {
+	provider := &Docker{}
+
+	containers := []struct {
+		container docker.Container
+		expected  string
+	}{
+		{
+			container: docker.Container{
+				Name:   "foo",
+				Config: &docker.Config{},
+			},
+			expected: "http",
+		},
+		{
+			container: docker.Container{
+				Name: "test",
+				Config: &docker.Config{
+					Labels: map[string]string{
+						"traefik.protocol": "https",
+					},
+				},
+			},
+			expected: "https",
+		},
+	}
+
+	for _, e := range containers {
+		actual := provider.getProtocol(e.container)
+		if actual != e.expected {
+			t.Fatalf("expected %q, got %q", e.expected, actual)
+		}
+	}
+}
+
+func TestDockerGetPassHostHeader(t *testing.T) {
+	provider := &Docker{}
+
+	containers := []struct {
+		container docker.Container
+		expected  string
+	}{
+		{
+			container: docker.Container{
+				Name:   "foo",
+				Config: &docker.Config{},
+			},
+			expected: "false",
+		},
+		{
+			container: docker.Container{
+				Name: "test",
+				Config: &docker.Config{
+					Labels: map[string]string{
+						"traefik.frontend.passHostHeader": "true",
+					},
+				},
+			},
+			expected: "true",
+		},
+	}
+
+	for _, e := range containers {
+		actual := provider.getPassHostHeader(e.container)
+		if actual != e.expected {
+			t.Fatalf("expected %q, got %q", e.expected, actual)
+		}
+	}
+}
+
+func TestDockerGetLabel(t *testing.T) {
+	containers := []struct {
+		container docker.Container
+		expected  string
+	}{
+		{
+			container: docker.Container{
+				Config: &docker.Config{},
+			},
+			expected: "Label not found:",
+		},
+		{
+			container: docker.Container{
+				Config: &docker.Config{
+					Labels: map[string]string{
+						"foo": "bar",
+					},
+				},
+			},
+			expected: "",
+		},
+	}
+
+	for _, e := range containers {
+		label, err := getLabel(e.container, "foo")
+		if e.expected != "" {
+			if err == nil || !strings.Contains(err.Error(), e.expected) {
+				t.Fatalf("expected an error with %q, got %v", e.expected, err)
+			}
+		} else {
+			if label != "bar" {
+				t.Fatalf("expected label 'bar', got %s", label)
+			}
+		}
+	}
+}
+
+func TestDockerGetLabels(t *testing.T) {
+	containers := []struct {
+		container      docker.Container
+		expectedLabels map[string]string
+		expectedError  string
+	}{
+		{
+			container: docker.Container{
+				Config: &docker.Config{},
+			},
+			expectedLabels: map[string]string{},
+			expectedError:  "Label not found:",
+		},
+		{
+			container: docker.Container{
+				Config: &docker.Config{
+					Labels: map[string]string{
+						"foo": "fooz",
+					},
+				},
+			},
+			expectedLabels: map[string]string{
+				"foo": "fooz",
+			},
+			expectedError: "Label not found: bar",
+		},
+		{
+			container: docker.Container{
+				Config: &docker.Config{
+					Labels: map[string]string{
+						"foo": "fooz",
+						"bar": "barz",
+					},
+				},
+			},
+			expectedLabels: map[string]string{
+				"foo": "fooz",
+				"bar": "barz",
+			},
+			expectedError: "",
+		},
+	}
+
+	for _, e := range containers {
+		labels, err := getLabels(e.container, []string{"foo", "bar"})
+		if !reflect.DeepEqual(labels, e.expectedLabels) {
+			t.Fatalf("expect %v, got %v", e.expectedLabels, labels)
+		}
+		if e.expectedError != "" {
+			if err == nil || !strings.Contains(err.Error(), e.expectedError) {
+				t.Fatalf("expected an error with %q, got %v", e.expectedError, err)
+			}
+		}
+	}
+}
+
+func TestDockerTraefikFilter(t *testing.T) {
+	containers := []struct {
+		container docker.Container
+		expected  bool
+	}{
+		{
+			container: docker.Container{
+				Config:          &docker.Config{},
+				NetworkSettings: &docker.NetworkSettings{},
+			},
+			expected: false,
+		},
+		{
+			container: docker.Container{
+				Config: &docker.Config{
+					Labels: map[string]string{
+						"traefik.enable": "false",
+					},
+				},
+				NetworkSettings: &docker.NetworkSettings{
+					Ports: map[docker.Port][]docker.PortBinding{
+						"80/tcp": {},
+					},
+				},
+			},
+			expected: false,
+		},
+		{
+			container: docker.Container{
+				Config: &docker.Config{
+					Labels: map[string]string{
+						"traefik.frontend.rule": "Host",
+					},
+				},
+				NetworkSettings: &docker.NetworkSettings{
+					Ports: map[docker.Port][]docker.PortBinding{
+						"80/tcp": {},
+					},
+				},
+			},
+			expected: false,
+		},
+		{
+			container: docker.Container{
+				Config: &docker.Config{
+					Labels: map[string]string{
+						"traefik.frontend.value": "foo.bar",
+					},
+				},
+				NetworkSettings: &docker.NetworkSettings{
+					Ports: map[docker.Port][]docker.PortBinding{
+						"80/tcp": {},
+					},
+				},
+			},
+			expected: false,
+		},
+		{
+			container: docker.Container{
+				Config: &docker.Config{},
+				NetworkSettings: &docker.NetworkSettings{
+					Ports: map[docker.Port][]docker.PortBinding{
+						"80/tcp":  {},
+						"443/tcp": {},
+					},
+				},
+			},
+			expected: false,
+		},
+		{
+			container: docker.Container{
+				Config: &docker.Config{},
+				NetworkSettings: &docker.NetworkSettings{
+					Ports: map[docker.Port][]docker.PortBinding{
+						"80/tcp": {},
+					},
+				},
+			},
+			expected: true,
+		},
+		{
+			container: docker.Container{
+				Config: &docker.Config{
+					Labels: map[string]string{
+						"traefik.port": "80",
+					},
+				},
+				NetworkSettings: &docker.NetworkSettings{
+					Ports: map[docker.Port][]docker.PortBinding{
+						"80/tcp":  {},
+						"443/tcp": {},
+					},
+				},
+			},
+			expected: true,
+		},
+		{
+			container: docker.Container{
+				Config: &docker.Config{
+					Labels: map[string]string{
+						"traefik.enable": "true",
+					},
+				},
+				NetworkSettings: &docker.NetworkSettings{
+					Ports: map[docker.Port][]docker.PortBinding{
+						"80/tcp": {},
+					},
+				},
+			},
+			expected: true,
+		},
+		{
+			container: docker.Container{
+				Config: &docker.Config{
+					Labels: map[string]string{
+						"traefik.enable": "anything",
+					},
+				},
+				NetworkSettings: &docker.NetworkSettings{
+					Ports: map[docker.Port][]docker.PortBinding{
+						"80/tcp": {},
+					},
+				},
+			},
+			expected: true,
+		},
+		{
+			container: docker.Container{
+				Config: &docker.Config{
+					Labels: map[string]string{
+						"traefik.frontend.rule":  "Host",
+						"traefik.frontend.value": "foo.bar",
+					},
+				},
+				NetworkSettings: &docker.NetworkSettings{
+					Ports: map[docker.Port][]docker.PortBinding{
+						"80/tcp": {},
+					},
+				},
+			},
+			expected: true,
+		},
+	}
+
+	for _, e := range containers {
+		actual := containerFilter(e.container)
+		if actual != e.expected {
+			t.Fatalf("expected %v, got %v", e.expected, actual)
+		}
+	}
+}
+
+func TestDockerLoadDockerConfig(t *testing.T) {
+	cases := []struct {
+		containers        []docker.Container
+		expectedFrontends map[string]*types.Frontend
+		expectedBackends  map[string]*types.Backend
+	}{
+		{
+			containers:        []docker.Container{},
+			expectedFrontends: map[string]*types.Frontend{},
+			expectedBackends:  map[string]*types.Backend{},
+		},
+		{
+			containers: []docker.Container{
+				{
+					Name:   "test",
+					Config: &docker.Config{},
+					NetworkSettings: &docker.NetworkSettings{
+						Ports: map[docker.Port][]docker.PortBinding{
+							"80/tcp": {},
+						},
+						IPAddress: "127.0.0.1",
+					},
+				},
+			},
+			expectedFrontends: map[string]*types.Frontend{
+				`"frontend-Host-test-docker-localhost"`: {
+					Backend: "backend-test",
+					Routes: map[string]types.Route{
+						`"route-frontend-Host-test-docker-localhost"`: {
+							Rule:  "Host",
+							Value: "test.docker.localhost",
+						},
+					},
+				},
+			},
+			expectedBackends: map[string]*types.Backend{
+				"backend-test": {
+					Servers: map[string]types.Server{
+						"server-test": {
+							URL: "http://127.0.0.1:80",
+						},
+					},
+					CircuitBreaker: nil,
+					LoadBalancer:   nil,
+				},
+			},
+		},
+		{
+			containers: []docker.Container{
+				{
+					Name: "test1",
+					Config: &docker.Config{
+						Labels: map[string]string{
+							"traefik.backend": "foobar",
+						},
+					},
+					NetworkSettings: &docker.NetworkSettings{
+						Ports: map[docker.Port][]docker.PortBinding{
+							"80/tcp": {},
+						},
+						IPAddress: "127.0.0.1",
+					},
+				},
+				{
+					Name: "test2",
+					Config: &docker.Config{
+						Labels: map[string]string{
+							"traefik.backend": "foobar",
+						},
+					},
+					NetworkSettings: &docker.NetworkSettings{
+						Ports: map[docker.Port][]docker.PortBinding{
+							"80/tcp": {},
+						},
+						IPAddress: "127.0.0.1",
+					},
+				},
+			},
+			expectedFrontends: map[string]*types.Frontend{
+				`"frontend-Host-test1-docker-localhost"`: {
+					Backend: "backend-foobar",
+					Routes: map[string]types.Route{
+						`"route-frontend-Host-test1-docker-localhost"`: {
+							Rule:  "Host",
+							Value: "test1.docker.localhost",
+						},
+					},
+				},
+				`"frontend-Host-test2-docker-localhost"`: {
+					Backend: "backend-foobar",
+					Routes: map[string]types.Route{
+						`"route-frontend-Host-test2-docker-localhost"`: {
+							Rule:  "Host",
+							Value: "test2.docker.localhost",
+						},
+					},
+				},
+			},
+			expectedBackends: map[string]*types.Backend{
+				"backend-foobar": {
+					Servers: map[string]types.Server{
+						"server-test1": {
+							URL: "http://127.0.0.1:80",
+						},
+						"server-test2": {
+							URL: "http://127.0.0.1:80",
+						},
+					},
+					CircuitBreaker: nil,
+					LoadBalancer:   nil,
+				},
+			},
+		},
+	}
+
+	provider := &Docker{
+		Domain: "docker.localhost",
+	}
+
+	for _, c := range cases {
+		actualConfig := provider.loadDockerConfig(c.containers)
+		// Compare backends
+		if !reflect.DeepEqual(actualConfig.Backends, c.expectedBackends) {
+			t.Fatalf("expected %#v, got %#v", c.expectedBackends, actualConfig.Backends)
+		}
+		if !reflect.DeepEqual(actualConfig.Frontends, c.expectedFrontends) {
+			t.Fatalf("expected %#v, got %#v", c.expectedFrontends, actualConfig.Frontends)
+		}
+	}
+}

provider/etcd.go

@@ -1,19 +1,20 @@
 package provider
 
-import "github.com/emilevauge/traefik/types"
+import (
+	"github.com/docker/libkv/store"
+	"github.com/docker/libkv/store/etcd"
+	"github.com/emilevauge/traefik/types"
+)
 
 // Etcd holds configurations of the Etcd provider.
 type Etcd struct {
-	Watch      bool
-	Endpoint   string
-	Prefix     string
-	Filename   string
-	KvProvider *Kv
+	Kv
 }
 
 // Provide allows the provider to provide configurations to traefik
 // using the given configuration channel.
 func (provider *Etcd) Provide(configurationChan chan<- types.ConfigMessage) error {
-	provider.KvProvider = NewEtcdProvider(provider)
-	return provider.KvProvider.provide(configurationChan)
+	provider.StoreType = store.ETCD
+	etcd.Register()
+	return provider.provide(configurationChan)
 }

provider/file.go

@@ -13,8 +13,7 @@ import (
 
 // File holds configurations of the File provider.
 type File struct {
-	Watch    bool
-	Filename string
+	baseProvider
 }
 
 // Provide allows the provider to provide configurations to traefik
@@ -44,7 +43,10 @@ func (provider *File) Provide(configurationChan chan<- types.ConfigMessage) erro
 						log.Debug("File event:", event)
 						configuration := provider.loadFileConfig(file.Name())
 						if configuration != nil {
-							configurationChan <- types.ConfigMessage{"file", configuration}
+							configurationChan <- types.ConfigMessage{
+								ProviderName:  "file",
+								Configuration: configuration,
+							}
 						}
 					}
 				case error := <-watcher.Errors:
@@ -60,7 +62,10 @@ func (provider *File) Provide(configurationChan chan<- types.ConfigMessage) erro
 	}
 
 	configuration := provider.loadFileConfig(file.Name())
-	configurationChan <- types.ConfigMessage{"file", configuration}
+	configurationChan <- types.ConfigMessage{
+		ProviderName:  "file",
+		Configuration: configuration,
+	}
 	return nil
 }
 

provider/kv.go

@@ -2,92 +2,27 @@
 package provider
 
 import (
-	"bytes"
-	"errors"
 	"strings"
 	"text/template"
 	"time"
 
-	"github.com/BurntSushi/toml"
 	"github.com/BurntSushi/ty/fun"
 	log "github.com/Sirupsen/logrus"
 	"github.com/docker/libkv"
 	"github.com/docker/libkv/store"
-	"github.com/docker/libkv/store/boltdb"
-	"github.com/docker/libkv/store/consul"
-	"github.com/docker/libkv/store/etcd"
-	"github.com/docker/libkv/store/zookeeper"
-	"github.com/emilevauge/traefik/autogen"
 	"github.com/emilevauge/traefik/types"
 )
 
 // Kv holds common configurations of key-value providers.
 type Kv struct {
-	Watch     bool
+	baseProvider
 	Endpoint  string
 	Prefix    string
-	Filename  string
 	StoreType store.Backend
 	kvclient  store.Store
 }
 
-// NewConsulProvider returns a Consul provider.
-func NewConsulProvider(provider *Consul) *Kv {
-	kvProvider := new(Kv)
-	kvProvider.Watch = provider.Watch
-	kvProvider.Endpoint = provider.Endpoint
-	kvProvider.Prefix = provider.Prefix
-	kvProvider.Filename = provider.Filename
-	kvProvider.StoreType = store.CONSUL
-	return kvProvider
-}
-
-// NewEtcdProvider returns a Etcd provider.
-func NewEtcdProvider(provider *Etcd) *Kv {
-	kvProvider := new(Kv)
-	kvProvider.Watch = provider.Watch
-	kvProvider.Endpoint = provider.Endpoint
-	kvProvider.Prefix = provider.Prefix
-	kvProvider.Filename = provider.Filename
-	kvProvider.StoreType = store.ETCD
-	return kvProvider
-}
-
-// NewZkProvider returns a Zookepper provider.
-func NewZkProvider(provider *Zookepper) *Kv {
-	kvProvider := new(Kv)
-	kvProvider.Watch = provider.Watch
-	kvProvider.Endpoint = provider.Endpoint
-	kvProvider.Prefix = provider.Prefix
-	kvProvider.Filename = provider.Filename
-	kvProvider.StoreType = store.ZK
-	return kvProvider
-}
-
-// NewBoltDbProvider returns a BoldDb provider.
-func NewBoltDbProvider(provider *BoltDb) *Kv {
-	kvProvider := new(Kv)
-	kvProvider.Watch = provider.Watch
-	kvProvider.Endpoint = provider.Endpoint
-	kvProvider.Prefix = provider.Prefix
-	kvProvider.Filename = provider.Filename
-	kvProvider.StoreType = store.BOLTDB
-	return kvProvider
-}
-
 func (provider *Kv) provide(configurationChan chan<- types.ConfigMessage) error {
-	switch provider.StoreType {
-	case store.CONSUL:
-		consul.Register()
-	case store.ETCD:
-		etcd.Register()
-	case store.ZK:
-		zookeeper.Register()
-	case store.BOLTDB:
-		boltdb.Register()
-	default:
-		return errors.New("Invalid kv store: " + string(provider.StoreType))
-	}
 	kv, err := libkv.NewStore(
 		provider.StoreType,
 		[]string{provider.Endpoint},
@@ -114,88 +49,70 @@ func (provider *Kv) provide(configurationChan chan<- types.ConfigMessage) error
 				<-chanKeys
 				configuration := provider.loadConfig()
 				if configuration != nil {
-					configurationChan <- types.ConfigMessage{string(provider.StoreType), configuration}
+					configurationChan <- types.ConfigMessage{
+						ProviderName:  string(provider.StoreType),
+						Configuration: configuration,
+					}
 				}
 				defer close(stopCh)
 			}
 		}()
 	}
 	configuration := provider.loadConfig()
-	configurationChan <- types.ConfigMessage{string(provider.StoreType), configuration}
+	configurationChan <- types.ConfigMessage{
+		ProviderName:  string(provider.StoreType),
+		Configuration: configuration,
+	}
 	return nil
 }
 
 func (provider *Kv) loadConfig() *types.Configuration {
-	configuration := new(types.Configuration)
 	templateObjects := struct {
 		Prefix string
 	}{
 		provider.Prefix,
 	}
 	var KvFuncMap = template.FuncMap{
-		"List": func(keys ...string) []string {
-			joinedKeys := strings.Join(keys, "")
-			keysPairs, err := provider.kvclient.List(joinedKeys)
-			if err != nil {
-				log.Error("Error getting keys: ", joinedKeys, err)
-				return nil
-			}
-			directoryKeys := make(map[string]string)
-			for _, key := range keysPairs {
-				directory := strings.Split(strings.TrimPrefix(key.Key, strings.TrimPrefix(joinedKeys, "/")), "/")[0]
-				directoryKeys[directory] = joinedKeys + directory
-			}
-			return fun.Values(directoryKeys).([]string)
-		},
-		"Get": func(keys ...string) string {
-			joinedKeys := strings.Join(keys, "")
-			keyPair, err := provider.kvclient.Get(joinedKeys)
-			if err != nil {
-				log.Debug("Error getting key: ", joinedKeys, err)
-				return ""
-			} else if keyPair == nil {
-				return ""
-			}
-			return string(keyPair.Value)
-		},
-		"Last": func(key string) string {
-			splittedKey := strings.Split(key, "/")
-			return splittedKey[len(splittedKey)-1]
-		},
+		"List": provider.list,
+		"Get":  provider.get,
+		"Last": provider.last,
 	}
 
-	tmpl := template.New(provider.Filename).Funcs(KvFuncMap)
-	if len(provider.Filename) > 0 {
-		_, err := tmpl.ParseFiles(provider.Filename)
-		if err != nil {
-			log.Error("Error reading file", err)
-			return nil
-		}
-	} else {
-		buf, err := autogen.Asset("templates/kv.tmpl")
-		if err != nil {
-			log.Error("Error reading file", err)
-		}
-		_, err = tmpl.Parse(string(buf))
-		if err != nil {
-			log.Error("Error reading file", err)
-			return nil
-		}
-	}
-
-	var buffer bytes.Buffer
-
-	err := tmpl.Execute(&buffer, templateObjects)
+	configuration, err := provider.getConfiguration("templates/kv.tmpl", KvFuncMap, templateObjects)
 	if err != nil {
-		log.Error("Error with kv template:", err)
-		return nil
+		log.Error(err)
 	}
-
-	if _, err := toml.Decode(buffer.String(), configuration); err != nil {
-		log.Error("Error creating kv configuration:", err)
-		log.Error(buffer.String())
-		return nil
-	}
-
 	return configuration
 }
+
+func (provider *Kv) list(keys ...string) []string {
+	joinedKeys := strings.Join(keys, "")
+	keysPairs, err := provider.kvclient.List(joinedKeys)
+	if err != nil {
+		log.Error("Error getting keys: ", joinedKeys, err)
+		return nil
+	}
+	directoryKeys := make(map[string]string)
+	for _, key := range keysPairs {
+		directory := strings.Split(strings.TrimPrefix(key.Key, strings.TrimPrefix(joinedKeys, "/")), "/")[0]
+		directoryKeys[directory] = joinedKeys + directory
+	}
+	return fun.Values(directoryKeys).([]string)
+}
+
+func (provider *Kv) get(keys ...string) string {
+	joinedKeys := strings.Join(keys, "")
+	keyPair, err := provider.kvclient.Get(joinedKeys)
+	if err != nil {
+		log.Debug("Error getting key: ", joinedKeys, err)
+		return ""
+	} else if keyPair == nil {
+		return ""
+	}
+	return string(keyPair.Value)
+}
+
+func (provider *Kv) last(key string) string {
+	splittedKey := strings.Split(key, "/")
+	return splittedKey[len(splittedKey)-1]
+}

provider/kv_test.go

@@ -0,0 +1,312 @@
+package provider
+
+import (
+	"errors"
+	"strings"
+	"testing"
+
+	"github.com/docker/libkv/store"
+	"reflect"
+	"sort"
+)
+
+func TestKvList(t *testing.T) {
+	cases := []struct {
+		provider *Kv
+		keys     []string
+		expected []string
+	}{
+		{
+			provider: &Kv{
+				kvclient: &Mock{},
+			},
+			keys:     []string{},
+			expected: []string{},
+		},
+		{
+			provider: &Kv{
+				kvclient: &Mock{},
+			},
+			keys:     []string{"traefik"},
+			expected: []string{},
+		},
+		{
+			provider: &Kv{
+				kvclient: &Mock{
+					KVPairs: []*store.KVPair{
+						{
+							Key:   "foo",
+							Value: []byte("bar"),
+						},
+					},
+				},
+			},
+			keys:     []string{"bar"},
+			expected: []string{},
+		},
+		{
+			provider: &Kv{
+				kvclient: &Mock{
+					KVPairs: []*store.KVPair{
+						{
+							Key:   "foo",
+							Value: []byte("bar"),
+						},
+					},
+				},
+			},
+			keys:     []string{"foo"},
+			expected: []string{"foo"},
+		},
+		{
+			provider: &Kv{
+				kvclient: &Mock{
+					KVPairs: []*store.KVPair{
+						{
+							Key:   "foo/baz/1",
+							Value: []byte("bar"),
+						},
+						{
+							Key:   "foo/baz/2",
+							Value: []byte("bar"),
+						},
+						{
+							Key:   "foo/baz/biz/1",
+							Value: []byte("bar"),
+						},
+					},
+				},
+			},
+			keys:     []string{"foo", "/baz/"},
+			expected: []string{"foo/baz/biz", "foo/baz/1", "foo/baz/2"},
+		},
+	}
+
+	for _, c := range cases {
+		actual := c.provider.list(c.keys...)
+		sort.Strings(actual)
+		sort.Strings(c.expected)
+		if !reflect.DeepEqual(actual, c.expected) {
+			t.Fatalf("expected %v, got %v for %v and %v", c.expected, actual, c.keys, c.provider)
+		}
+	}
+
+	// Error case
+	provider := &Kv{
+		kvclient: &Mock{
+			Error: true,
+		},
+	}
+	actual := provider.list("anything")
+	if actual != nil {
+		t.Fatalf("Should have return nil, got %v", actual)
+	}
+}
+
+func TestKvGet(t *testing.T) {
+	cases := []struct {
+		provider *Kv
+		keys     []string
+		expected string
+	}{
+		{
+			provider: &Kv{
+				kvclient: &Mock{},
+			},
+			keys:     []string{},
+			expected: "",
+		},
+		{
+			provider: &Kv{
+				kvclient: &Mock{},
+			},
+			keys:     []string{"traefik"},
+			expected: "",
+		},
+		{
+			provider: &Kv{
+				kvclient: &Mock{
+					KVPairs: []*store.KVPair{
+						{
+							Key:   "foo",
+							Value: []byte("bar"),
+						},
+					},
+				},
+			},
+			keys:     []string{"bar"},
+			expected: "",
+		},
+		{
+			provider: &Kv{
+				kvclient: &Mock{
+					KVPairs: []*store.KVPair{
+						{
+							Key:   "foo",
+							Value: []byte("bar"),
+						},
+					},
+				},
+			},
+			keys:     []string{"foo"},
+			expected: "bar",
+		},
+		{
+			provider: &Kv{
+				kvclient: &Mock{
+					KVPairs: []*store.KVPair{
+						{
+							Key:   "foo/baz/1",
+							Value: []byte("bar1"),
+						},
+						{
+							Key:   "foo/baz/2",
+							Value: []byte("bar2"),
+						},
+						{
+							Key:   "foo/baz/biz/1",
+							Value: []byte("bar3"),
+						},
+					},
+				},
+			},
+			keys:     []string{"foo", "/baz/", "2"},
+			expected: "bar2",
+		},
+	}
+
+	for _, c := range cases {
+		actual := c.provider.get(c.keys...)
+		if actual != c.expected {
+			t.Fatalf("expected %v, got %v for %v and %v", c.expected, actual, c.keys, c.provider)
+		}
+	}
+
+	// Error case
+	provider := &Kv{
+		kvclient: &Mock{
+			Error: true,
+		},
+	}
+	actual := provider.get("anything")
+	if actual != "" {
+		t.Fatalf("Should have return nil, got %v", actual)
+	}
+}
+
+func TestKvLast(t *testing.T) {
+	cases := []struct {
+		key      string
+		expected string
+	}{
+		{
+			key:      "",
+			expected: "",
+		},
+		{
+			key:      "foo",
+			expected: "foo",
+		},
+		{
+			key:      "foo/bar",
+			expected: "bar",
+		},
+		{
+			key:      "foo/bar/baz",
+			expected: "baz",
+		},
+		// FIXME is this wanted ?
+		{
+			key:      "foo/bar/",
+			expected: "",
+		},
+	}
+
+	provider := &Kv{}
+	for _, c := range cases {
+		actual := provider.last(c.key)
+		if actual != c.expected {
+			t.Fatalf("expected %s, got %s", c.expected, actual)
+		}
+	}
+}
+
+// Extremely limited mock store so we can test initialization
+type Mock struct {
+	Error   bool
+	KVPairs []*store.KVPair
+}
+
+func (s *Mock) Put(key string, value []byte, opts *store.WriteOptions) error {
+	return errors.New("Put not supported")
+}
+
+func (s *Mock) Get(key string) (*store.KVPair, error) {
+	if s.Error {
+		return nil, errors.New("Error")
+	}
+	for _, kvPair := range s.KVPairs {
+		if kvPair.Key == key {
+			return kvPair, nil
+		}
+	}
+	return nil, nil
+}
+
+func (s *Mock) Delete(key string) error {
+	return errors.New("Delete not supported")
+}
+
+// Exists mock
+func (s *Mock) Exists(key string) (bool, error) {
+	return false, errors.New("Exists not supported")
+}
+
+// Watch mock
+func (s *Mock) Watch(key string, stopCh <-chan struct{}) (<-chan *store.KVPair, error) {
+	return nil, errors.New("Watch not supported")
+}
+
+// WatchTree mock
+func (s *Mock) WatchTree(prefix string, stopCh <-chan struct{}) (<-chan []*store.KVPair, error) {
+	return nil, errors.New("WatchTree not supported")
+}
+
+// NewLock mock
+func (s *Mock) NewLock(key string, options *store.LockOptions) (store.Locker, error) {
+	return nil, errors.New("NewLock not supported")
+}
+
+// List mock
+func (s *Mock) List(prefix string) ([]*store.KVPair, error) {
+	if s.Error {
+		return nil, errors.New("Error")
+	}
+	kv := []*store.KVPair{}
+	for _, kvPair := range s.KVPairs {
+		if strings.HasPrefix(kvPair.Key, prefix) {
+			kv = append(kv, kvPair)
+		}
+	}
+	return kv, nil
+}
+
+// DeleteTree mock
+func (s *Mock) DeleteTree(prefix string) error {
+	return errors.New("DeleteTree not supported")
+}
+
+// AtomicPut mock
+func (s *Mock) AtomicPut(key string, value []byte, previous *store.KVPair, opts *store.WriteOptions) (bool, *store.KVPair, error) {
+	return false, nil, errors.New("AtomicPut not supported")
+}
+
+// AtomicDelete mock
+func (s *Mock) AtomicDelete(key string, previous *store.KVPair) (bool, error) {
+	return false, errors.New("AtomicDelete not supported")
+}
+
+// Close mock
+func (s *Mock) Close() {
+	return
+}

provider/marathon.go

@@ -1,28 +1,29 @@
 package provider
 
 import (
-	"bytes"
 	"errors"
+	"net/url"
 	"strconv"
-	"strings"
 	"text/template"
 
-	"github.com/BurntSushi/toml"
 	"github.com/BurntSushi/ty/fun"
 	log "github.com/Sirupsen/logrus"
-	"github.com/emilevauge/traefik/autogen"
 	"github.com/emilevauge/traefik/types"
 	"github.com/gambol99/go-marathon"
 )
 
 // Marathon holds configuration of the Marathon provider.
 type Marathon struct {
-	Watch            bool
+	baseProvider
 	Endpoint         string
 	Domain           string
-	Filename         string
 	NetworkInterface string
-	marathonClient   marathon.Marathon
+	marathonClient   lightMarathonClient
+}
+
+type lightMarathonClient interface {
+	Applications(url.Values) (*marathon.Applications, error)
+	AllTasks() (*marathon.Tasks, error)
 }
 
 // Provide allows the provider to provide configurations to traefik
@@ -48,7 +49,10 @@ func (provider *Marathon) Provide(configurationChan chan<- types.ConfigMessage)
 					log.Debug("Marathon event receveived", event)
 					configuration := provider.loadMarathonConfig()
 					if configuration != nil {
-						configurationChan <- types.ConfigMessage{"marathon", configuration}
+						configurationChan <- types.ConfigMessage{
+							ProviderName:  "marathon",
+							Configuration: configuration,
+						}
 					}
 				}
 			}()
@@ -56,59 +60,24 @@ func (provider *Marathon) Provide(configurationChan chan<- types.ConfigMessage)
 	}
 
 	configuration := provider.loadMarathonConfig()
-	configurationChan <- types.ConfigMessage{"marathon", configuration}
+	configurationChan <- types.ConfigMessage{
+		ProviderName:  "marathon",
+		Configuration: configuration,
+	}
 	return nil
 }
 
 func (provider *Marathon) loadMarathonConfig() *types.Configuration {
 	var MarathonFuncMap = template.FuncMap{
-		"getPort": func(task marathon.Task) string {
-			for _, port := range task.Ports {
-				return strconv.Itoa(port)
-			}
-			return ""
-		},
-		"getWeight": func(task marathon.Task, applications []marathon.Application) string {
-			application, errApp := getApplication(task, applications)
-			if errApp != nil {
-				log.Errorf("Unable to get marathon application from task %s", task.AppID)
-				return "0"
-			}
-			if label, err := provider.getLabel(application, "traefik.weight"); err == nil {
-				return label
-			}
-			return "0"
-		},
-		"getDomain": func(application marathon.Application) string {
-			if label, err := provider.getLabel(application, "traefik.domain"); err == nil {
-				return label
-			}
-			return provider.Domain
-		},
-		"replace": func(s1 string, s2 string, s3 string) string {
-			return strings.Replace(s3, s1, s2, -1)
-		},
-		"getProtocol": func(task marathon.Task, applications []marathon.Application) string {
-			application, errApp := getApplication(task, applications)
-			if errApp != nil {
-				log.Errorf("Unable to get marathon application from task %s", task.AppID)
-				return "http"
-			}
-			if label, err := provider.getLabel(application, "traefik.protocol"); err == nil {
-				return label
-			}
-			return "http"
-		},
-		"getPassHostHeader": func(application marathon.Application) string {
-			if passHostHeader, err := provider.getLabel(application, "traefik.frontend.passHostHeader"); err == nil {
-				return passHostHeader
-			}
-			return "false"
-		},
-		"getFrontendValue": provider.GetFrontendValue,
-		"getFrontendRule":  provider.GetFrontendRule,
+		"getPort":           provider.getPort,
+		"getWeight":         provider.getWeight,
+		"getDomain":         provider.getDomain,
+		"getProtocol":       provider.getProtocol,
+		"getPassHostHeader": provider.getPassHostHeader,
+		"getFrontendValue":  provider.getFrontendValue,
+		"getFrontendRule":   provider.getFrontendRule,
+		"replace":           replace,
 	}
-	configuration := new(types.Configuration)
 
 	applications, err := provider.marathonClient.Applications(nil)
 	if err != nil {
@@ -124,54 +93,12 @@ func (provider *Marathon) loadMarathonConfig() *types.Configuration {
 
 	//filter tasks
 	filteredTasks := fun.Filter(func(task marathon.Task) bool {
-		if len(task.Ports) == 0 {
-			log.Debug("Filtering marathon task without port %s", task.AppID)
-			return false
-		}
-		application, errApp := getApplication(task, applications.Apps)
-		if errApp != nil {
-			log.Errorf("Unable to get marathon application from task %s", task.AppID)
-			return false
-		}
-		_, err := strconv.Atoi(application.Labels["traefik.port"])
-		if len(application.Ports) > 1 && err != nil {
-			log.Debugf("Filtering marathon task %s with more than 1 port and no traefik.port label", task.AppID)
-			return false
-		}
-		if application.Labels["traefik.enable"] == "false" {
-			log.Debugf("Filtering disabled marathon task %s", task.AppID)
-			return false
-		}
-		//filter healthchecks
-		if application.HasHealthChecks() {
-			if task.HasHealthCheckResults() {
-				for _, healthcheck := range task.HealthCheckResult {
-					// found one bad healthcheck, return false
-					if !healthcheck.Alive {
-						log.Debugf("Filtering marathon task %s with bad healthcheck", task.AppID)
-						return false
-					}
-				}
-			} else {
-				log.Debugf("Filtering marathon task %s with bad healthcheck", task.AppID)
-				return false
-			}
-		}
-		return true
+		return taskFilter(task, applications)
 	}, tasks.Tasks).([]marathon.Task)
 
 	//filter apps
 	filteredApps := fun.Filter(func(app marathon.Application) bool {
-		//get ports from app tasks
-		if !fun.Exists(func(task marathon.Task) bool {
-			if task.AppID == app.ID {
-				return true
-			}
-			return false
-		}, filteredTasks) {
-			return false
-		}
-		return true
+		return applicationFilter(app, filteredTasks)
 	}, applications.Apps).([]marathon.Application)
 
 	templateObjects := struct {
@@ -184,41 +111,56 @@ func (provider *Marathon) loadMarathonConfig() *types.Configuration {
 		provider.Domain,
 	}
 
-	tmpl := template.New(provider.Filename).Funcs(MarathonFuncMap)
-	if len(provider.Filename) > 0 {
-		_, err := tmpl.ParseFiles(provider.Filename)
-		if err != nil {
-			log.Error("Error reading file", err)
-			return nil
-		}
-	} else {
-		buf, err := autogen.Asset("templates/marathon.tmpl")
-		if err != nil {
-			log.Error("Error reading file", err)
-		}
-		_, err = tmpl.Parse(string(buf))
-		if err != nil {
-			log.Error("Error reading file", err)
-			return nil
-		}
-	}
-
-	var buffer bytes.Buffer
-
-	err = tmpl.Execute(&buffer, templateObjects)
+	configuration, err := provider.getConfiguration("templates/marathon.tmpl", MarathonFuncMap, templateObjects)
 	if err != nil {
-		log.Error("Error with marathon template:", err)
-		return nil
+		log.Error(err)
 	}
-
-	if _, err := toml.Decode(buffer.String(), configuration); err != nil {
-		log.Error("Error creating marathon configuration:", err)
-		return nil
-	}
-
 	return configuration
 }
 
+func taskFilter(task marathon.Task, applications *marathon.Applications) bool {
+	if len(task.Ports) == 0 {
+		log.Debug("Filtering marathon task without port %s", task.AppID)
+		return false
+	}
+	application, errApp := getApplication(task, applications.Apps)
+	if errApp != nil {
+		log.Errorf("Unable to get marathon application from task %s", task.AppID)
+		return false
+	}
+	_, err := strconv.Atoi(application.Labels["traefik.port"])
+	if len(application.Ports) > 1 && err != nil {
+		log.Debugf("Filtering marathon task %s with more than 1 port and no traefik.port label", task.AppID)
+		return false
+	}
+	if application.Labels["traefik.enable"] == "false" {
+		log.Debugf("Filtering disabled marathon task %s", task.AppID)
+		return false
+	}
+	//filter healthchecks
+	if application.HasHealthChecks() {
+		if task.HasHealthCheckResults() {
+			for _, healthcheck := range task.HealthCheckResult {
+				// found one bad healthcheck, return false
+				if !healthcheck.Alive {
+					log.Debugf("Filtering marathon task %s with bad healthcheck", task.AppID)
+					return false
+				}
+			}
+		} else {
+			log.Debugf("Filtering marathon task %s with bad healthcheck", task.AppID)
+			return false
+		}
+	}
+	return true
+}
+
+func applicationFilter(app marathon.Application, filteredTasks []marathon.Task) bool {
+	return fun.Exists(func(task marathon.Task) bool {
+		return task.AppID == app.ID
+	}, filteredTasks)
+}
+
 func getApplication(task marathon.Task, apps []marathon.Application) (marathon.Application, error) {
 	for _, application := range apps {
 		if application.ID == task.AppID {
@@ -237,22 +179,63 @@ func (provider *Marathon) getLabel(application marathon.Application, label strin
 	return "", errors.New("Label not found:" + label)
 }
 
-func (provider *Marathon) getEscapedName(name string) string {
-	return strings.Replace(name, "/", "", -1)
+func (provider *Marathon) getPort(task marathon.Task) string {
+	for _, port := range task.Ports {
+		return strconv.Itoa(port)
+	}
+	return ""
 }
 
-// GetFrontendValue returns the frontend value for the specified application, using
+func (provider *Marathon) getWeight(task marathon.Task, applications []marathon.Application) string {
+	application, errApp := getApplication(task, applications)
+	if errApp != nil {
+		log.Errorf("Unable to get marathon application from task %s", task.AppID)
+		return "0"
+	}
+	if label, err := provider.getLabel(application, "traefik.weight"); err == nil {
+		return label
+	}
+	return "0"
+}
+
+func (provider *Marathon) getDomain(application marathon.Application) string {
+	if label, err := provider.getLabel(application, "traefik.domain"); err == nil {
+		return label
+	}
+	return provider.Domain
+}
+
+func (provider *Marathon) getProtocol(task marathon.Task, applications []marathon.Application) string {
+	application, errApp := getApplication(task, applications)
+	if errApp != nil {
+		log.Errorf("Unable to get marathon application from task %s", task.AppID)
+		return "http"
+	}
+	if label, err := provider.getLabel(application, "traefik.protocol"); err == nil {
+		return label
+	}
+	return "http"
+}
+
+func (provider *Marathon) getPassHostHeader(application marathon.Application) string {
+	if passHostHeader, err := provider.getLabel(application, "traefik.frontend.passHostHeader"); err == nil {
+		return passHostHeader
+	}
+	return "false"
+}
+
+// getFrontendValue returns the frontend value for the specified application, using
 // it's label. It returns a default one if the label is not present.
-func (provider *Marathon) GetFrontendValue(application marathon.Application) string {
+func (provider *Marathon) getFrontendValue(application marathon.Application) string {
 	if label, err := provider.getLabel(application, "traefik.frontend.value"); err == nil {
 		return label
 	}
-	return provider.getEscapedName(application.ID) + "." + provider.Domain
+	return getEscapedName(application.ID) + "." + provider.Domain
 }
 
-// GetFrontendRule returns the frontend rule for the specified application, using
+// getFrontendRule returns the frontend rule for the specified application, using
 // it's label. It returns a default one (Host) if the label is not present.
-func (provider *Marathon) GetFrontendRule(application marathon.Application) string {
+func (provider *Marathon) getFrontendRule(application marathon.Application) string {
 	if label, err := provider.getLabel(application, "traefik.frontend.rule"); err == nil {
 		return label
 	}

provider/marathon_test.go

@@ -0,0 +1,656 @@
+package provider
+
+import (
+	"errors"
+	"net/url"
+	"reflect"
+	"testing"
+
+	"github.com/emilevauge/traefik/types"
+	"github.com/gambol99/go-marathon"
+)
+
+type fakeClient struct {
+	applicationsError bool
+	applications      *marathon.Applications
+	tasksError        bool
+	tasks             *marathon.Tasks
+}
+
+func (c *fakeClient) Applications(url.Values) (*marathon.Applications, error) {
+	if c.applicationsError {
+		return nil, errors.New("error")
+	}
+	return c.applications, nil
+}
+
+func (c *fakeClient) AllTasks() (*marathon.Tasks, error) {
+	if c.tasksError {
+		return nil, errors.New("error")
+	}
+	return c.tasks, nil
+}
+
+func TestMarathonLoadConfig(t *testing.T) {
+	cases := []struct {
+		applicationsError bool
+		applications      *marathon.Applications
+		tasksError        bool
+		tasks             *marathon.Tasks
+		expectedNil       bool
+		expectedFrontends map[string]*types.Frontend
+		expectedBackends  map[string]*types.Backend
+	}{
+		{
+			applications:      &marathon.Applications{},
+			tasks:             &marathon.Tasks{},
+			expectedFrontends: map[string]*types.Frontend{},
+			expectedBackends:  map[string]*types.Backend{},
+		},
+		{
+			applicationsError: true,
+			applications:      &marathon.Applications{},
+			tasks:             &marathon.Tasks{},
+			expectedNil:       true,
+			expectedFrontends: map[string]*types.Frontend{},
+			expectedBackends:  map[string]*types.Backend{},
+		},
+		{
+			applications:      &marathon.Applications{},
+			tasksError:        true,
+			tasks:             &marathon.Tasks{},
+			expectedNil:       true,
+			expectedFrontends: map[string]*types.Frontend{},
+			expectedBackends:  map[string]*types.Backend{},
+		},
+		{
+			applications: &marathon.Applications{
+				Apps: []marathon.Application{
+					{
+						ID:    "/test",
+						Ports: []int{80},
+					},
+				},
+			},
+			tasks: &marathon.Tasks{
+				Tasks: []marathon.Task{
+					{
+						ID:    "test",
+						AppID: "/test",
+						Host:  "127.0.0.1",
+						Ports: []int{80},
+					},
+				},
+			},
+			expectedFrontends: map[string]*types.Frontend{
+				`frontend-test`: {
+					Backend: "backend-test",
+					Routes: map[string]types.Route{
+						`route-host-test`: {
+							Rule:  "Host",
+							Value: "test.docker.localhost",
+						},
+					},
+				},
+			},
+			expectedBackends: map[string]*types.Backend{
+				"backend-test": {
+					Servers: map[string]types.Server{
+						"server-test": {
+							URL:    "http://127.0.0.1:80",
+							Weight: 0,
+						},
+					},
+					CircuitBreaker: nil,
+					LoadBalancer:   nil,
+				},
+			},
+		},
+	}
+
+	for _, c := range cases {
+		provider := &Marathon{
+			Domain: "docker.localhost",
+			marathonClient: &fakeClient{
+				applicationsError: c.applicationsError,
+				applications:      c.applications,
+				tasksError:        c.tasksError,
+				tasks:             c.tasks,
+			},
+		}
+		actualConfig := provider.loadMarathonConfig()
+		if c.expectedNil {
+			if actualConfig != nil {
+				t.Fatalf("Should have been nil, got %v", actualConfig)
+			}
+		} else {
+			// Compare backends
+			if !reflect.DeepEqual(actualConfig.Backends, c.expectedBackends) {
+				t.Fatalf("expected %#v, got %#v", c.expectedBackends, actualConfig.Backends)
+			}
+			if !reflect.DeepEqual(actualConfig.Frontends, c.expectedFrontends) {
+				t.Fatalf("expected %#v, got %#v", c.expectedFrontends, actualConfig.Frontends)
+			}
+		}
+	}
+}
+
+func TestMarathonTaskFilter(t *testing.T) {
+	cases := []struct {
+		task         marathon.Task
+		applications *marathon.Applications
+		expected     bool
+	}{
+		{
+			task:         marathon.Task{},
+			applications: &marathon.Applications{},
+			expected:     false,
+		},
+		{
+			task: marathon.Task{
+				AppID: "test",
+				Ports: []int{80},
+			},
+			applications: &marathon.Applications{},
+			expected:     false,
+		},
+		{
+			task: marathon.Task{
+				AppID: "test",
+				Ports: []int{80},
+			},
+			applications: &marathon.Applications{
+				Apps: []marathon.Application{
+					{
+						ID: "foo",
+					},
+				},
+			},
+			expected: false,
+		},
+		{
+			task: marathon.Task{
+				AppID: "foo",
+				Ports: []int{80},
+			},
+			applications: &marathon.Applications{
+				Apps: []marathon.Application{
+					{
+						ID:    "foo",
+						Ports: []int{80, 443},
+					},
+				},
+			},
+			expected: false,
+		},
+		{
+			task: marathon.Task{
+				AppID: "foo",
+				Ports: []int{80},
+			},
+			applications: &marathon.Applications{
+				Apps: []marathon.Application{
+					{
+						ID:    "foo",
+						Ports: []int{80},
+						Labels: map[string]string{
+							"traefik.enable": "false",
+						},
+					},
+				},
+			},
+			expected: false,
+		},
+		{
+			task: marathon.Task{
+				AppID: "foo",
+				Ports: []int{80},
+			},
+			applications: &marathon.Applications{
+				Apps: []marathon.Application{
+					{
+						ID:    "foo",
+						Ports: []int{80},
+						HealthChecks: []*marathon.HealthCheck{
+							marathon.NewDefaultHealthCheck(),
+						},
+					},
+				},
+			},
+			expected: false,
+		},
+		{
+			task: marathon.Task{
+				AppID: "foo",
+				Ports: []int{80},
+				HealthCheckResult: []*marathon.HealthCheckResult{
+					{
+						Alive: false,
+					},
+				},
+			},
+			applications: &marathon.Applications{
+				Apps: []marathon.Application{
+					{
+						ID:    "foo",
+						Ports: []int{80},
+						HealthChecks: []*marathon.HealthCheck{
+							marathon.NewDefaultHealthCheck(),
+						},
+					},
+				},
+			},
+			expected: false,
+		},
+		{
+			task: marathon.Task{
+				AppID: "foo",
+				Ports: []int{80},
+				HealthCheckResult: []*marathon.HealthCheckResult{
+					{
+						Alive: true,
+					},
+					{
+						Alive: false,
+					},
+				},
+			},
+			applications: &marathon.Applications{
+				Apps: []marathon.Application{
+					{
+						ID:    "foo",
+						Ports: []int{80},
+						HealthChecks: []*marathon.HealthCheck{
+							marathon.NewDefaultHealthCheck(),
+						},
+					},
+				},
+			},
+			expected: false,
+		},
+		{
+			task: marathon.Task{
+				AppID: "foo",
+				Ports: []int{80},
+			},
+			applications: &marathon.Applications{
+				Apps: []marathon.Application{
+					{
+						ID:    "foo",
+						Ports: []int{80},
+					},
+				},
+			},
+			expected: true,
+		},
+		{
+			task: marathon.Task{
+				AppID: "foo",
+				Ports: []int{80},
+				HealthCheckResult: []*marathon.HealthCheckResult{
+					{
+						Alive: true,
+					},
+				},
+			},
+			applications: &marathon.Applications{
+				Apps: []marathon.Application{
+					{
+						ID:    "foo",
+						Ports: []int{80},
+						HealthChecks: []*marathon.HealthCheck{
+							marathon.NewDefaultHealthCheck(),
+						},
+					},
+				},
+			},
+			expected: true,
+		},
+	}
+
+	for _, c := range cases {
+		actual := taskFilter(c.task, c.applications)
+		if actual != c.expected {
+			t.Fatalf("expected %v, got %v", c.expected, actual)
+		}
+	}
+}
+
+func TestMarathonApplicationFilter(t *testing.T) {
+	cases := []struct {
+		application   marathon.Application
+		filteredTasks []marathon.Task
+		expected      bool
+	}{
+		{
+			application:   marathon.Application{},
+			filteredTasks: []marathon.Task{},
+			expected:      false,
+		},
+		{
+			application: marathon.Application{
+				ID: "test",
+			},
+			filteredTasks: []marathon.Task{},
+			expected:      false,
+		},
+		{
+			application: marathon.Application{
+				ID: "foo",
+			},
+			filteredTasks: []marathon.Task{
+				{
+					AppID: "bar",
+				},
+			},
+			expected: false,
+		},
+		{
+			application: marathon.Application{
+				ID: "foo",
+			},
+			filteredTasks: []marathon.Task{
+				{
+					AppID: "foo",
+				},
+			},
+			expected: true,
+		},
+	}
+
+	for _, c := range cases {
+		actual := applicationFilter(c.application, c.filteredTasks)
+		if actual != c.expected {
+			t.Fatalf("expected %v, got %v", c.expected, actual)
+		}
+	}
+}
+
+func TestMarathonGetPort(t *testing.T) {
+	provider := &Marathon{}
+
+	cases := []struct {
+		task     marathon.Task
+		expected string
+	}{
+		{
+			task:     marathon.Task{},
+			expected: "",
+		},
+		{
+			task: marathon.Task{
+				Ports: []int{80},
+			},
+			expected: "80",
+		},
+		{
+			task: marathon.Task{
+				Ports: []int{80, 443},
+			},
+			expected: "80",
+		},
+	}
+
+	for _, c := range cases {
+		actual := provider.getPort(c.task)
+		if actual != c.expected {
+			t.Fatalf("expected %q, got %q", c.expected, actual)
+		}
+	}
+}
+
+func TestMarathonGetWeigh(t *testing.T) {
+	provider := &Marathon{}
+
+	applications := []struct {
+		applications []marathon.Application
+		task         marathon.Task
+		expected     string
+	}{
+		{
+			applications: []marathon.Application{},
+			task:         marathon.Task{},
+			expected:     "0",
+		},
+		{
+			applications: []marathon.Application{
+				{
+					ID: "test1",
+					Labels: map[string]string{
+						"traefik.weight": "10",
+					},
+				},
+			},
+			task: marathon.Task{
+				AppID: "test2",
+			},
+			expected: "0",
+		},
+		{
+			applications: []marathon.Application{
+				{
+					ID: "test",
+					Labels: map[string]string{
+						"traefik.test": "10",
+					},
+				},
+			},
+			task: marathon.Task{
+				AppID: "test",
+			},
+			expected: "0",
+		},
+		{
+			applications: []marathon.Application{
+				{
+					ID: "test",
+					Labels: map[string]string{
+						"traefik.weight": "10",
+					},
+				},
+			},
+			task: marathon.Task{
+				AppID: "test",
+			},
+			expected: "10",
+		},
+	}
+
+	for _, a := range applications {
+		actual := provider.getWeight(a.task, a.applications)
+		if actual != a.expected {
+			t.Fatalf("expected %q, got %q", a.expected, actual)
+		}
+	}
+}
+
+func TestMarathonGetDomain(t *testing.T) {
+	provider := &Marathon{
+		Domain: "docker.localhost",
+	}
+
+	applications := []struct {
+		application marathon.Application
+		expected    string
+	}{
+		{
+			application: marathon.Application{},
+			expected:    "docker.localhost",
+		},
+		{
+			application: marathon.Application{
+				Labels: map[string]string{
+					"traefik.domain": "foo.bar",
+				},
+			},
+			expected: "foo.bar",
+		},
+	}
+
+	for _, a := range applications {
+		actual := provider.getDomain(a.application)
+		if actual != a.expected {
+			t.Fatalf("expected %q, got %q", a.expected, actual)
+		}
+	}
+}
+
+func TestMarathonGetProtocol(t *testing.T) {
+	provider := &Marathon{}
+
+	applications := []struct {
+		applications []marathon.Application
+		task         marathon.Task
+		expected     string
+	}{
+		{
+			applications: []marathon.Application{},
+			task:         marathon.Task{},
+			expected:     "http",
+		},
+		{
+			applications: []marathon.Application{
+				{
+					ID: "test1",
+					Labels: map[string]string{
+						"traefik.protocol": "https",
+					},
+				},
+			},
+			task: marathon.Task{
+				AppID: "test2",
+			},
+			expected: "http",
+		},
+		{
+			applications: []marathon.Application{
+				{
+					ID: "test",
+					Labels: map[string]string{
+						"traefik.foo": "bar",
+					},
+				},
+			},
+			task: marathon.Task{
+				AppID: "test",
+			},
+			expected: "http",
+		},
+		{
+			applications: []marathon.Application{
+				{
+					ID: "test",
+					Labels: map[string]string{
+						"traefik.protocol": "https",
+					},
+				},
+			},
+			task: marathon.Task{
+				AppID: "test",
+			},
+			expected: "https",
+		},
+	}
+
+	for _, a := range applications {
+		actual := provider.getProtocol(a.task, a.applications)
+		if actual != a.expected {
+			t.Fatalf("expected %q, got %q", a.expected, actual)
+		}
+	}
+}
+
+func TestMarathonGetPassHostHeader(t *testing.T) {
+	provider := &Marathon{}
+
+	applications := []struct {
+		application marathon.Application
+		expected    string
+	}{
+		{
+			application: marathon.Application{},
+			expected:    "false",
+		},
+		{
+			application: marathon.Application{
+				Labels: map[string]string{
+					"traefik.frontend.passHostHeader": "true",
+				},
+			},
+			expected: "true",
+		},
+	}
+
+	for _, a := range applications {
+		actual := provider.getPassHostHeader(a.application)
+		if actual != a.expected {
+			t.Fatalf("expected %q, got %q", a.expected, actual)
+		}
+	}
+}
+
+func TestMarathonGetFrontendValue(t *testing.T) {
+	provider := &Marathon{
+		Domain: "docker.localhost",
+	}
+
+	applications := []struct {
+		application marathon.Application
+		expected    string
+	}{
+		{
+			application: marathon.Application{},
+			expected:    ".docker.localhost",
+		},
+		{
+			application: marathon.Application{
+				ID: "test",
+			},
+			expected: "test.docker.localhost",
+		},
+		{
+			application: marathon.Application{
+				Labels: map[string]string{
+					"traefik.frontend.value": "foo.bar",
+				},
+			},
+			expected: "foo.bar",
+		},
+	}
+
+	for _, a := range applications {
+		actual := provider.getFrontendValue(a.application)
+		if actual != a.expected {
+			t.Fatalf("expected %q, got %q", a.expected, actual)
+		}
+	}
+}
+
+func TestMarathonGetFrontendRule(t *testing.T) {
+	provider := &Marathon{}
+
+	applications := []struct {
+		application marathon.Application
+		expected    string
+	}{
+		{
+			application: marathon.Application{},
+			expected:    "Host",
+		},
+		{
+			application: marathon.Application{
+				Labels: map[string]string{
+					"traefik.frontend.rule": "Header",
+				},
+			},
+			expected: "Header",
+		},
+	}
+
+	for _, a := range applications {
+		actual := provider.getFrontendRule(a.application)
+		if actual != a.expected {
+			t.Fatalf("expected %q, got %q", a.expected, actual)
+		}
+	}
+}

provider/provider.go

@@ -1,6 +1,15 @@
 package provider
 
-import "github.com/emilevauge/traefik/types"
+import (
+	"bytes"
+	"io/ioutil"
+	"strings"
+	"text/template"
+
+	"github.com/BurntSushi/toml"
+	"github.com/emilevauge/traefik/autogen"
+	"github.com/emilevauge/traefik/types"
+)
 
 // Provider defines methods of a provider.
 type Provider interface {
@@ -8,3 +17,51 @@ type Provider interface {
 	// using the given configuration channel.
 	Provide(configurationChan chan<- types.ConfigMessage) error
 }
+
+type baseProvider struct {
+	Watch    bool
+	Filename string
+}
+
+func (p *baseProvider) getConfiguration(defaultTemplateFile string, funcMap template.FuncMap, templateObjects interface{}) (*types.Configuration, error) {
+	var (
+		buf []byte
+		err error
+	)
+	configuration := new(types.Configuration)
+	tmpl := template.New(p.Filename).Funcs(funcMap)
+	if len(p.Filename) > 0 {
+		buf, err = ioutil.ReadFile(p.Filename)
+		if err != nil {
+			return nil, err
+		}
+	} else {
+		buf, err = autogen.Asset(defaultTemplateFile)
+		if err != nil {
+			return nil, err
+		}
+	}
+	_, err = tmpl.Parse(string(buf))
+	if err != nil {
+		return nil, err
+	}
+
+	var buffer bytes.Buffer
+	err = tmpl.Execute(&buffer, templateObjects)
+	if err != nil {
+		return nil, err
+	}
+
+	if _, err := toml.Decode(buffer.String(), configuration); err != nil {
+		return nil, err
+	}
+	return configuration, nil
+}
+
+func replace(s1 string, s2 string, s3 string) string {
+	return strings.Replace(s3, s1, s2, -1)
+}
+
+func getEscapedName(name string) string {
+	return strings.Replace(name, "/", "", -1)
+}

provider/provider_test.go

@@ -0,0 +1,170 @@
+package provider
+
+import (
+	"io/ioutil"
+	"os"
+	"strings"
+	"testing"
+	"text/template"
+)
+
+type myProvider struct {
+	baseProvider
+}
+
+func (p *myProvider) Foo() string {
+	return "bar"
+}
+
+func TestConfigurationErrors(t *testing.T) {
+	templateErrorFile, err := ioutil.TempFile("", "provider-configuration-error")
+	if err != nil {
+		t.Fatal(err)
+	}
+	defer os.RemoveAll(templateErrorFile.Name())
+	data := []byte("Not a valid template {{ Bar }}")
+	err = ioutil.WriteFile(templateErrorFile.Name(), data, 0700)
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	templateInvalidTOMLFile, err := ioutil.TempFile("", "provider-configuration-error")
+	if err != nil {
+		t.Fatal(err)
+	}
+	defer os.RemoveAll(templateInvalidTOMLFile.Name())
+	data = []byte(`Hello {{ .Name }}
+{{ Foo }}`)
+	err = ioutil.WriteFile(templateInvalidTOMLFile.Name(), data, 0700)
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	invalids := []struct {
+		provider        *myProvider
+		defaultTemplate string
+		expectedError   string
+		funcMap         template.FuncMap
+		templateObjects interface{}
+	}{
+		{
+			provider: &myProvider{
+				baseProvider{
+					Filename: "/non/existent/template.tmpl",
+				},
+			},
+			expectedError: "open /non/existent/template.tmpl: no such file or directory",
+		},
+		{
+			provider:        &myProvider{},
+			defaultTemplate: "non/existent/template.tmpl",
+			expectedError:   "Asset non/existent/template.tmpl not found",
+		},
+		{
+			provider: &myProvider{
+				baseProvider{
+					Filename: templateErrorFile.Name(),
+				},
+			},
+			expectedError: `function "Bar" not defined`,
+		},
+		{
+			provider: &myProvider{
+				baseProvider{
+					Filename: templateInvalidTOMLFile.Name(),
+				},
+			},
+			expectedError: "Near line 1, key 'Hello': Near line 1: Expected key separator '=', but got '<' instead",
+			funcMap: template.FuncMap{
+				"Foo": func() string {
+					return "bar"
+				},
+			},
+			templateObjects: struct{ Name string }{Name: "bar"},
+		},
+	}
+
+	for _, invalid := range invalids {
+		configuration, err := invalid.provider.getConfiguration(invalid.defaultTemplate, invalid.funcMap, nil)
+		if err == nil || !strings.Contains(err.Error(), invalid.expectedError) {
+			t.Fatalf("should have generate an error with %q, got %v", invalid.expectedError, err)
+		}
+		if configuration != nil {
+			t.Fatalf("shouldn't have return a configuration object : %v", configuration)
+		}
+	}
+}
+
+func TestGetConfiguration(t *testing.T) {
+	templateFile, err := ioutil.TempFile("", "provider-configuration")
+	if err != nil {
+		t.Fatal(err)
+	}
+	defer os.RemoveAll(templateFile.Name())
+	data := []byte(`[backends]
+  [backends.backend1]
+    [backends.backend1.circuitbreaker]
+      expression = "NetworkErrorRatio() > 0.5"
+    [backends.backend1.servers.server1]
+    url = "http://172.17.0.2:80"
+    weight = 10
+    [backends.backend1.servers.server2]
+    url = "http://172.17.0.3:80"
+    weight = 1
+
+[frontends]
+  [frontends.frontend1]
+  backend = "backend1"
+  passHostHeader = true
+    [frontends.frontend11.routes.test_2]
+    rule = "Path"
+    value = "/test"`)
+	err = ioutil.WriteFile(templateFile.Name(), data, 0700)
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	provider := &myProvider{
+		baseProvider{
+			Filename: templateFile.Name(),
+		},
+	}
+	configuration, err := provider.getConfiguration(templateFile.Name(), nil, nil)
+	if err != nil {
+		t.Fatalf("Shouldn't have error out, got %v", err)
+	}
+	if configuration == nil {
+		t.Fatalf("Configuration should not be nil, but was")
+	}
+}
+
+func TestReplace(t *testing.T) {
+	cases := []struct {
+		str      string
+		expected string
+	}{
+		{
+			str:      "",
+			expected: "",
+		},
+		{
+			str:      "foo",
+			expected: "bar",
+		},
+		{
+			str:      "foo foo",
+			expected: "bar bar",
+		},
+		{
+			str:      "somethingfoo",
+			expected: "somethingbar",
+		},
+	}
+
+	for _, c := range cases {
+		actual := replace("foo", "bar", c.str)
+		if actual != c.expected {
+			t.Fatalf("expected %q, got %q, for %q", c.expected, actual, c.str)
+		}
+	}
+}

provider/zk.go

@@ -1,19 +1,20 @@
 package provider
 
-import "github.com/emilevauge/traefik/types"
+import (
+	"github.com/docker/libkv/store"
+	"github.com/docker/libkv/store/zookeeper"
+	"github.com/emilevauge/traefik/types"
+)
 
 // Zookepper holds configurations of the Zookepper provider.
 type Zookepper struct {
-	Watch      bool
-	Endpoint   string
-	Prefix     string
-	Filename   string
-	KvProvider *Kv
+	Kv
 }
 
 // Provide allows the provider to provide configurations to traefik
 // using the given configuration channel.
 func (provider *Zookepper) Provide(configurationChan chan<- types.ConfigMessage) error {
-	provider.KvProvider = NewZkProvider(provider)
-	return provider.KvProvider.provide(configurationChan)
+	provider.StoreType = store.ZK
+	zookeeper.Register()
+	return provider.provide(configurationChan)
 }