Fix Docker filter empty rule

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

provider/docker/docker.go

@@ -523,6 +523,11 @@ func (p *Provider) containerFilter(container dockerData) bool {
 		return false
 	}
 
+	if len(p.getFrontendRule(container)) == 0 {
+		log.Debugf("Filtering container with empty frontend rule %s", container.Name)
+		return false
+	}
+
 	return true
 }
 
@@ -537,12 +542,11 @@ func (p *Provider) getFrontendRule(container dockerData) string {
 	if label, err := getLabel(container, "traefik.frontend.rule"); err == nil {
 		return label
 	}
-	if labels, err := getLabels(container, []string{"com.docker.compose.project", "com.docker.compose.service"}); err == nil {
+	if len(p.Domain) > 0 {
-		return "Host:" + p.getSubDomain(labels["com.docker.compose.service"]+"."+labels["com.docker.compose.project"]) + "." + p.Domain
-	}
-
 		return "Host:" + p.getSubDomain(container.ServiceName) + "." + p.Domain
 	}
+	return ""
+}
 
 func (p *Provider) getBackend(container dockerData) string {
 	if label, err := getLabel(container, "traefik.backend"); err == nil {

provider/docker/docker_test.go

@@ -8,6 +8,7 @@ import (
 
 	"github.com/containous/traefik/types"
 	docker "github.com/docker/engine-api/types"
+	"github.com/docker/engine-api/types/container"
 	"github.com/docker/go-connections/nat"
 )
 
@@ -489,125 +490,298 @@ func TestDockerGetLabels(t *testing.T) {
 func TestDockerTraefikFilter(t *testing.T) {
 	containers := []struct {
 		container docker.ContainerJSON
-		exposedByDefault bool
 		expected  bool
+		provider  *Provider
 	}{
 		{
-			container:        containerJSON(),
+			container: docker.ContainerJSON{
-			exposedByDefault: true,
+				ContainerJSONBase: &docker.ContainerJSONBase{
+					Name: "container",
+				},
+				Config:          &container.Config{},
+				NetworkSettings: &docker.NetworkSettings{},
+			},
 			expected: false,
+			provider: &Provider{
+				Domain:           "test",
+				ExposedByDefault: true,
+			},
 		},
 		{
-			container: containerJSON(
+			container: docker.ContainerJSON{
-				labels(map[string]string{
+				ContainerJSONBase: &docker.ContainerJSONBase{
+					Name: "container",
+				},
+				Config: &container.Config{
+					Labels: map[string]string{
 						"traefik.enable": "false",
-				}),
+					},
-				ports(nat.PortMap{
+				},
+				NetworkSettings: &docker.NetworkSettings{
+					NetworkSettingsBase: docker.NetworkSettingsBase{
+						Ports: nat.PortMap{
 							"80/tcp": {},
-				}),
+						},
-			),
+					},
-			exposedByDefault: true,
+				},
+			},
+			provider: &Provider{
+				Domain:           "test",
+				ExposedByDefault: true,
+			},
 			expected: false,
 		},
 		{
-			container: containerJSON(
+			container: docker.ContainerJSON{
-				labels(map[string]string{
+				ContainerJSONBase: &docker.ContainerJSONBase{
+					Name: "container",
+				},
+				Config: &container.Config{
+					Labels: map[string]string{
 						"traefik.frontend.rule": "Host:foo.bar",
-				}),
+					},
-				ports(nat.PortMap{
+				},
+				NetworkSettings: &docker.NetworkSettings{
+					NetworkSettingsBase: docker.NetworkSettingsBase{
+						Ports: nat.PortMap{
 							"80/tcp": {},
-				}),
+						},
-			),
+					},
-			exposedByDefault: true,
+				},
+			},
+			provider: &Provider{
+				Domain:           "test",
+				ExposedByDefault: true,
+			},
 			expected: true,
 		},
 		{
-			container: containerJSON(
+			container: docker.ContainerJSON{
-				ports(nat.PortMap{
+				ContainerJSONBase: &docker.ContainerJSONBase{
+					Name: "container-multi-ports",
+				},
+				Config: &container.Config{},
+				NetworkSettings: &docker.NetworkSettings{
+					NetworkSettingsBase: docker.NetworkSettingsBase{
+						Ports: nat.PortMap{
 							"80/tcp":  {},
 							"443/tcp": {},
-				}),
+						},
-			),
+					},
-			exposedByDefault: true,
+				},
+			},
+			provider: &Provider{
+				Domain:           "test",
+				ExposedByDefault: true,
+			},
 			expected: true,
 		},
 		{
-			container: containerJSON(
+			container: docker.ContainerJSON{
-				ports(nat.PortMap{
+				ContainerJSONBase: &docker.ContainerJSONBase{
+					Name: "container",
+				},
+				Config: &container.Config{},
+				NetworkSettings: &docker.NetworkSettings{
+					NetworkSettingsBase: docker.NetworkSettingsBase{
+						Ports: nat.PortMap{
 							"80/tcp": {},
-				}),
+						},
-			),
+					},
-			exposedByDefault: true,
+				},
+			},
+			provider: &Provider{
+				Domain:           "test",
+				ExposedByDefault: true,
+			},
 			expected: true,
 		},
 		{
-			container: containerJSON(
+			container: docker.ContainerJSON{
-				labels(map[string]string{
+				ContainerJSONBase: &docker.ContainerJSONBase{
+					Name: "container",
+				},
+				Config: &container.Config{
+					Labels: map[string]string{
 						"traefik.port": "80",
-				}),
+					},
-				ports(nat.PortMap{
+				},
+				NetworkSettings: &docker.NetworkSettings{
+					NetworkSettingsBase: docker.NetworkSettingsBase{
+						Ports: nat.PortMap{
 							"80/tcp":  {},
 							"443/tcp": {},
-				}),
+						},
-			),
+					},
-			exposedByDefault: true,
+				},
+			},
+			provider: &Provider{
+				Domain:           "test",
+				ExposedByDefault: true,
+			},
 			expected: true,
 		},
 		{
-			container: containerJSON(
+			container: docker.ContainerJSON{
-				labels(map[string]string{
+				ContainerJSONBase: &docker.ContainerJSONBase{
+					Name: "container",
+				},
+				Config: &container.Config{
+					Labels: map[string]string{
 						"traefik.enable": "true",
-				}),
+					},
-				ports(nat.PortMap{
+				},
+				NetworkSettings: &docker.NetworkSettings{
+					NetworkSettingsBase: docker.NetworkSettingsBase{
+						Ports: nat.PortMap{
 							"80/tcp": {},
-				}),
+						},
-			),
+					},
-			exposedByDefault: true,
+				},
+			},
+			provider: &Provider{
+				Domain:           "test",
+				ExposedByDefault: true,
+			},
 			expected: true,
 		},
 		{
-			container: containerJSON(
+			container: docker.ContainerJSON{
-				labels(map[string]string{
+				ContainerJSONBase: &docker.ContainerJSONBase{
+					Name: "container",
+				},
+				Config: &container.Config{
+					Labels: map[string]string{
 						"traefik.enable": "anything",
-				}),
+					},
-				ports(nat.PortMap{
+				},
+				NetworkSettings: &docker.NetworkSettings{
+					NetworkSettingsBase: docker.NetworkSettingsBase{
+						Ports: nat.PortMap{
 							"80/tcp": {},
-				}),
+						},
-			),
+					},
-			exposedByDefault: true,
+				},
+			},
+			provider: &Provider{
+				Domain:           "test",
+				ExposedByDefault: true,
+			},
 			expected: true,
 		},
 		{
-			container: containerJSON(
+			container: docker.ContainerJSON{
-				labels(map[string]string{
+				ContainerJSONBase: &docker.ContainerJSONBase{
+					Name: "container",
+				},
+				Config: &container.Config{
+					Labels: map[string]string{
 						"traefik.frontend.rule": "Host:foo.bar",
-				}),
+					},
-				ports(nat.PortMap{
+				},
+				NetworkSettings: &docker.NetworkSettings{
+					NetworkSettingsBase: docker.NetworkSettingsBase{
+						Ports: nat.PortMap{
 							"80/tcp": {},
-				}),
+						},
-			),
+					},
-			exposedByDefault: true,
+				},
+			},
+			provider: &Provider{
+				Domain:           "test",
+				ExposedByDefault: true,
+			},
 			expected: true,
 		},
 		{
-			container: containerJSON(
+			container: docker.ContainerJSON{
-				ports(nat.PortMap{
+				ContainerJSONBase: &docker.ContainerJSONBase{
+					Name: "container",
+				},
+				Config: &container.Config{},
+				NetworkSettings: &docker.NetworkSettings{
+					NetworkSettingsBase: docker.NetworkSettingsBase{
+						Ports: nat.PortMap{
 							"80/tcp": {},
-				}),
+						},
-			),
+					},
-			exposedByDefault: false,
+				},
+			},
+			provider: &Provider{
+				Domain:           "test",
+				ExposedByDefault: false,
+			},
 			expected: false,
 		},
 		{
-			container: containerJSON(
+			container: docker.ContainerJSON{
-				labels(map[string]string{
+				ContainerJSONBase: &docker.ContainerJSONBase{
+					Name: "container",
+				},
+				Config: &container.Config{
+					Labels: map[string]string{
 						"traefik.enable": "true",
-				}),
+					},
-				ports(nat.PortMap{
+				},
+				NetworkSettings: &docker.NetworkSettings{
+					NetworkSettingsBase: docker.NetworkSettingsBase{
+						Ports: nat.PortMap{
 							"80/tcp": {},
-				}),
+						},
-			),
+					},
-			exposedByDefault: false,
+				},
+			},
+			provider: &Provider{
+				Domain:           "test",
+				ExposedByDefault: false,
+			},
+			expected: true,
+		},
+		{
+			container: docker.ContainerJSON{
+				ContainerJSONBase: &docker.ContainerJSONBase{
+					Name: "container",
+				},
+				Config: &container.Config{
+					Labels: map[string]string{
+						"traefik.enable": "true",
+					},
+				},
+				NetworkSettings: &docker.NetworkSettings{
+					NetworkSettingsBase: docker.NetworkSettingsBase{
+						Ports: nat.PortMap{
+							"80/tcp": {},
+						},
+					},
+				},
+			},
+			provider: &Provider{
+				ExposedByDefault: false,
+			},
+			expected: false,
+		},
+		{
+			container: docker.ContainerJSON{
+				ContainerJSONBase: &docker.ContainerJSONBase{
+					Name: "container",
+				},
+				Config: &container.Config{
+					Labels: map[string]string{
+						"traefik.enable":        "true",
+						"traefik.frontend.rule": "Host:i.love.this.host",
+					},
+				},
+				NetworkSettings: &docker.NetworkSettings{
+					NetworkSettingsBase: docker.NetworkSettingsBase{
+						Ports: nat.PortMap{
+							"80/tcp": {},
+						},
+					},
+				},
+			},
+			provider: &Provider{
+				ExposedByDefault: false,
+			},
 			expected: true,
 		},
 	}
@@ -616,12 +790,10 @@ func TestDockerTraefikFilter(t *testing.T) {
 		e := e
 		t.Run(strconv.Itoa(containerID), func(t *testing.T) {
 			t.Parallel()
-			provider := Provider{}
-			provider.ExposedByDefault = e.exposedByDefault
 			dockerData := parseContainer(e.container)
-			actual := provider.containerFilter(dockerData)
+			actual := e.provider.containerFilter(dockerData)
 			if actual != e.expected {
-				t.Errorf("expected %v for %+v (%+v, %+v), got %+v", e.expected, e.container, e.container.NetworkSettings, e.container.ContainerJSONBase, actual)
+				t.Errorf("expected %v for %+v, got %+v", e.expected, e, actual)
 			}
 		})
 	}

provider/docker/swarm_test.go

@@ -504,85 +504,121 @@ func TestSwarmGetLabels(t *testing.T) {
 func TestSwarmTraefikFilter(t *testing.T) {
 	services := []struct {
 		service  swarm.Service
-		exposedByDefault bool
 		expected bool
 		networks map[string]*docker.NetworkResource
+		provider *Provider
 	}{
 		{
 			service:  swarmService(),
-			exposedByDefault: true,
 			expected: false,
 			networks: map[string]*docker.NetworkResource{},
+			provider: &Provider{
+				SwarmMode:        true,
+				Domain:           "test",
+				ExposedByDefault: true,
+			},
 		},
 		{
 			service: swarmService(serviceLabels(map[string]string{
 				"traefik.enable": "false",
 				"traefik.port":   "80",
 			})),
-			exposedByDefault: true,
 			expected: false,
 			networks: map[string]*docker.NetworkResource{},
+			provider: &Provider{
+				SwarmMode:        true,
+				Domain:           "test",
+				ExposedByDefault: true,
+			},
 		},
 		{
 			service: swarmService(serviceLabels(map[string]string{
 				"traefik.frontend.rule": "Host:foo.bar",
 				"traefik.port":          "80",
 			})),
-			exposedByDefault: true,
 			expected: true,
 			networks: map[string]*docker.NetworkResource{},
+			provider: &Provider{
+				SwarmMode:        true,
+				Domain:           "test",
+				ExposedByDefault: true,
+			},
 		},
 		{
 			service: swarmService(serviceLabels(map[string]string{
 				"traefik.port": "80",
 			})),
-			exposedByDefault: true,
 			expected: true,
 			networks: map[string]*docker.NetworkResource{},
+			provider: &Provider{
+				SwarmMode:        true,
+				Domain:           "test",
+				ExposedByDefault: true,
+			},
 		},
 		{
 			service: swarmService(serviceLabels(map[string]string{
 				"traefik.enable": "true",
 				"traefik.port":   "80",
 			})),
-			exposedByDefault: true,
 			expected: true,
 			networks: map[string]*docker.NetworkResource{},
+			provider: &Provider{
+				SwarmMode:        true,
+				Domain:           "test",
+				ExposedByDefault: true,
+			},
 		},
 		{
 			service: swarmService(serviceLabels(map[string]string{
 				"traefik.enable": "anything",
 				"traefik.port":   "80",
 			})),
-			exposedByDefault: true,
 			expected: true,
 			networks: map[string]*docker.NetworkResource{},
+			provider: &Provider{
+				SwarmMode:        true,
+				Domain:           "test",
+				ExposedByDefault: true,
+			},
 		},
 		{
 			service: swarmService(serviceLabels(map[string]string{
 				"traefik.frontend.rule": "Host:foo.bar",
 				"traefik.port":          "80",
 			})),
-			exposedByDefault: true,
 			expected: true,
 			networks: map[string]*docker.NetworkResource{},
+			provider: &Provider{
+				SwarmMode:        true,
+				Domain:           "test",
+				ExposedByDefault: true,
+			},
 		},
 		{
 			service: swarmService(serviceLabels(map[string]string{
 				"traefik.port": "80",
 			})),
-			exposedByDefault: false,
 			expected: false,
 			networks: map[string]*docker.NetworkResource{},
+			provider: &Provider{
+				SwarmMode:        true,
+				Domain:           "test",
+				ExposedByDefault: false,
+			},
 		},
 		{
 			service: swarmService(serviceLabels(map[string]string{
 				"traefik.enable": "true",
 				"traefik.port":   "80",
 			})),
-			exposedByDefault: false,
 			expected: true,
 			networks: map[string]*docker.NetworkResource{},
+			provider: &Provider{
+				SwarmMode:        true,
+				Domain:           "test",
+				ExposedByDefault: false,
+			},
 		},
 	}
 
@@ -591,11 +627,7 @@ func TestSwarmTraefikFilter(t *testing.T) {
 		t.Run(strconv.Itoa(serviceID), func(t *testing.T) {
 			t.Parallel()
 			dockerData := parseService(e.service, e.networks)
-			provider := &Provider{
+			actual := e.provider.containerFilter(dockerData)
-				SwarmMode: true,
-			}
-			provider.ExposedByDefault = e.exposedByDefault
-			actual := provider.containerFilter(dockerData)
 			if actual != e.expected {
 				t.Errorf("expected %v for %+v, got %+v", e.expected, e, actual)
 			}