Add backwards compatibility

Signed-off-by: Emile Vauge <emile@vauge.com>

provider/docker.go

@@ -152,12 +152,6 @@ func containerFilter(container docker.Container) bool {
 		return false
 	}
 
-	// labels, err := getLabels(container, []string{"traefik.frontend.rule"})
-	// if len(labels) != 0 && err != nil {
-	// 	log.Debugf("Filtering bad labeled container %s", container.Name)
-	// 	return false
-	// }
-
 	return true
 }
 
@@ -169,6 +163,15 @@ func (provider *Docker) getFrontendName(container docker.Container) string {
 // 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 {
+	// ⚠⚠⚠⚠⚠⚠⚠⚠⚠⚠⚠⚠⚠⚠⚠⚠⚠⚠⚠⚠⚠⚠⚠⚠⚠⚠⚠⚠⚠⚠⚠⚠⚠⚠⚠⚠⚠⚠
+	// TODO: backwards compatibility with DEPRECATED rule.Value
+	if value, ok := container.Config.Labels["traefik.frontend.value"]; ok {
+		log.Warnf("Label traefik.frontend.value=%s is DEPRECATED, please refer to the rule label: https://github.com/containous/traefik/blob/master/docs/index.md#docker", value)
+		rule, _ := container.Config.Labels["traefik.frontend.rule"]
+		return rule + ":" + value
+	}
+	// ⚠⚠⚠⚠⚠⚠⚠⚠⚠⚠⚠⚠⚠⚠⚠⚠⚠⚠⚠⚠⚠⚠⚠⚠⚠⚠⚠⚠⚠⚠⚠⚠⚠⚠⚠⚠⚠⚠
+
 	if label, err := getLabel(container, "traefik.frontend.rule"); err == nil {
 		return label
 	}

provider/marathon.go

@@ -311,6 +311,14 @@ func (provider *Marathon) getEntryPoints(application marathon.Application) []str
 // 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 {
+	// ⚠⚠⚠⚠⚠⚠⚠⚠⚠⚠⚠⚠⚠⚠⚠⚠⚠⚠⚠⚠⚠⚠⚠⚠⚠⚠⚠⚠⚠⚠⚠⚠⚠⚠⚠⚠⚠⚠
+	// TODO: backwards compatibility with DEPRECATED rule.Value
+	if value, err := provider.getLabel(application, "traefik.frontend.value"); err == nil {
+		log.Warnf("Label traefik.frontend.value=%s is DEPRECATED, please refer to the rule label: https://github.com/containous/traefik/blob/master/docs/index.md#marathon", value)
+		rule, _ := provider.getLabel(application, "traefik.frontend.rule")
+		return rule + ":" + value
+	}
+	// ⚠⚠⚠⚠⚠⚠⚠⚠⚠⚠⚠⚠⚠⚠⚠⚠⚠⚠⚠⚠⚠⚠⚠⚠⚠⚠⚠⚠⚠⚠⚠⚠⚠⚠⚠⚠⚠⚠
 	if label, err := provider.getLabel(application, "traefik.frontend.rule"); err == nil {
 		return label
 	}

server.go

@@ -361,11 +361,11 @@ func (server *Server) loadConfig(configurations configs, globalConfiguration Glo
 				}
 				newServerRoute := &serverRoute{route: serverEntryPoints[entryPointName].httpRouter.GetHandler().NewRoute().Name(frontendName)}
 				for routeName, route := range frontend.Routes {
-					log.Debugf("Creating route %s %s", routeName, route.Rule)
+					err := getRoute(newServerRoute, &route)
-					err := getRoute(newServerRoute, route)
 					if err != nil {
 						return nil, err
 					}
+					log.Debugf("Creating route %s %s", routeName, route.Rule)
 				}
 				entryPoint := globalConfiguration.EntryPoints[entryPointName]
 				if entryPoint.Redirect != nil {
@@ -512,7 +512,15 @@ func (server *Server) buildDefaultHTTPRouter() *mux.Router {
 	return router
 }
 
-func getRoute(serverRoute *serverRoute, route types.Route) error {
+func getRoute(serverRoute *serverRoute, route *types.Route) error {
+	// ⚠⚠⚠⚠⚠⚠⚠⚠⚠⚠⚠⚠⚠⚠⚠⚠⚠⚠⚠⚠⚠⚠⚠⚠⚠⚠⚠⚠⚠⚠⚠⚠⚠⚠⚠⚠⚠⚠
+	// TODO: backwards compatibility with DEPRECATED rule.Value
+	if len(route.Value) > 0 {
+		route.Rule += ":" + route.Value
+		log.Warnf("Value %s is DEPRECATED, please refer to the new frontend notation: https://github.com/containous/traefik/blob/master/docs/index.md#-frontends", route.Value)
+	}
+	// ⚠⚠⚠⚠⚠⚠⚠⚠⚠⚠⚠⚠⚠⚠⚠⚠⚠⚠⚠⚠⚠⚠⚠⚠⚠⚠⚠⚠⚠⚠⚠⚠⚠⚠⚠⚠⚠⚠
+
 	rules := Rules{route: serverRoute}
 	newRoute, err := rules.Parse(route.Rule)
 	if err != nil {

types/types.go

@@ -31,6 +31,10 @@ type Server struct {
 // Route holds route configuration.
 type Route struct {
 	Rule string `json:"rule,omitempty"`
+	// ⚠⚠⚠⚠⚠⚠⚠⚠⚠⚠⚠⚠⚠⚠⚠⚠⚠⚠⚠⚠⚠⚠⚠⚠⚠⚠⚠⚠⚠⚠⚠⚠⚠⚠⚠⚠⚠⚠
+	// TODO: backwards compatibility with DEPRECATED rule.Value
+	Value string `json:"value,omitempty"`
+	// ⚠⚠⚠⚠⚠⚠⚠⚠⚠⚠⚠⚠⚠⚠⚠⚠⚠⚠⚠⚠⚠⚠⚠⚠⚠⚠⚠⚠⚠⚠⚠⚠⚠⚠⚠⚠⚠⚠
 }
 
 // Frontend holds frontend configuration.