traefik/provider/docker/docker_test.go

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package docker
import (
"reflect"
"strconv"
"strings"
"testing"
"github.com/containous/traefik/types"
docker "github.com/docker/engine-api/types"
"github.com/docker/go-connections/nat"
)
func TestDockerGetFrontendName(t *testing.T) {
containers := []struct {
container docker.ContainerJSON
expected string
}{
{
container: containerJSON(name("foo")),
expected: "Host-foo-docker-localhost",
},
{
container: containerJSON(labels(map[string]string{
"traefik.frontend.rule": "Headers:User-Agent,bat/0.1.0",
})),
expected: "Headers-User-Agent-bat-0-1-0",
},
{
container: containerJSON(labels(map[string]string{
"com.docker.compose.project": "foo",
"com.docker.compose.service": "bar",
})),
expected: "Host-bar-foo-docker-localhost",
},
{
container: containerJSON(labels(map[string]string{
"traefik.frontend.rule": "Host:foo.bar",
})),
expected: "Host-foo-bar",
},
{
container: containerJSON(labels(map[string]string{
"traefik.frontend.rule": "Path:/test",
})),
expected: "Path-test",
},
{
container: containerJSON(labels(map[string]string{
"traefik.frontend.rule": "PathPrefix:/test2",
})),
expected: "PathPrefix-test2",
},
}
for containerID, e := range containers {
e := e
t.Run(strconv.Itoa(containerID), func(t *testing.T) {
t.Parallel()
dockerData := parseContainer(e.container)
provider := &Provider{
Domain: "docker.localhost",
}
actual := provider.getFrontendName(dockerData)
if actual != e.expected {
t.Errorf("expected %q, got %q", e.expected, actual)
}
})
}
}
func TestDockerGetFrontendRule(t *testing.T) {
containers := []struct {
container docker.ContainerJSON
expected string
}{
{
container: containerJSON(name("foo")),
expected: "Host:foo.docker.localhost",
},
{
container: containerJSON(name("bar")),
expected: "Host:bar.docker.localhost",
},
{
container: containerJSON(labels(map[string]string{
"traefik.frontend.rule": "Host:foo.bar",
})),
expected: "Host:foo.bar",
}, {
container: containerJSON(labels(map[string]string{
"com.docker.compose.project": "foo",
"com.docker.compose.service": "bar",
})),
expected: "Host:bar.foo.docker.localhost",
},
{
container: containerJSON(labels(map[string]string{
"traefik.frontend.rule": "Path:/test",
})),
expected: "Path:/test",
},
}
for containerID, e := range containers {
e := e
t.Run(strconv.Itoa(containerID), func(t *testing.T) {
t.Parallel()
dockerData := parseContainer(e.container)
provider := &Provider{
Domain: "docker.localhost",
}
actual := provider.getFrontendRule(dockerData)
if actual != e.expected {
t.Errorf("expected %q, got %q", e.expected, actual)
}
})
}
}
func TestDockerGetBackend(t *testing.T) {
containers := []struct {
container docker.ContainerJSON
expected string
}{
{
container: containerJSON(name("foo")),
expected: "foo",
},
{
container: containerJSON(name("bar")),
expected: "bar",
},
{
container: containerJSON(labels(map[string]string{
"traefik.backend": "foobar",
})),
expected: "foobar",
},
{
container: containerJSON(labels(map[string]string{
"com.docker.compose.project": "foo",
"com.docker.compose.service": "bar",
})),
expected: "bar-foo",
},
}
for containerID, e := range containers {
e := e
t.Run(strconv.Itoa(containerID), func(t *testing.T) {
t.Parallel()
dockerData := parseContainer(e.container)
provider := &Provider{}
actual := provider.getBackend(dockerData)
if actual != e.expected {
t.Errorf("expected %q, got %q", e.expected, actual)
}
})
}
}
func TestDockerGetIPAddress(t *testing.T) {
containers := []struct {
container docker.ContainerJSON
expected string
}{
{
container: containerJSON(withNetwork("testnet", ipv4("10.11.12.13"))),
expected: "10.11.12.13",
},
{
container: containerJSON(
labels(map[string]string{
"traefik.docker.network": "testnet",
}),
withNetwork("testnet", ipv4("10.11.12.13")),
),
expected: "10.11.12.13",
},
{
container: containerJSON(
labels(map[string]string{
"traefik.docker.network": "testnet2",
}),
withNetwork("testnet", ipv4("10.11.12.13")),
withNetwork("testnet2", ipv4("10.11.12.14")),
),
expected: "10.11.12.14",
},
{
container: containerJSON(
networkMode("host"),
withNetwork("testnet", ipv4("10.11.12.13")),
withNetwork("testnet2", ipv4("10.11.12.14")),
),
expected: "127.0.0.1",
},
}
for containerID, e := range containers {
e := e
t.Run(strconv.Itoa(containerID), func(t *testing.T) {
t.Parallel()
dockerData := parseContainer(e.container)
provider := &Provider{}
actual := provider.getIPAddress(dockerData)
if actual != e.expected {
t.Errorf("expected %q, got %q", e.expected, actual)
}
})
}
}
func TestDockerGetPort(t *testing.T) {
containers := []struct {
container docker.ContainerJSON
expected string
}{
{
container: containerJSON(name("foo")),
expected: "",
},
{
container: containerJSON(ports(nat.PortMap{
"80/tcp": {},
})),
expected: "80",
},
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{
container: containerJSON(ports(nat.PortMap{
"80/tcp": {},
"443/tcp": {},
})),
expected: "80",
},
{
container: containerJSON(labels(map[string]string{
"traefik.port": "8080",
})),
expected: "8080",
},
{
container: containerJSON(labels(map[string]string{
"traefik.port": "8080",
}), ports(nat.PortMap{
"80/tcp": {},
})),
expected: "8080",
},
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{
container: containerJSON(labels(map[string]string{
"traefik.port": "8080",
}), ports(nat.PortMap{
"8080/tcp": {},
"80/tcp": {},
})),
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expected: "8080",
},
}
for containerID, e := range containers {
e := e
t.Run(strconv.Itoa(containerID), func(t *testing.T) {
t.Parallel()
dockerData := parseContainer(e.container)
provider := &Provider{}
actual := provider.getPort(dockerData)
if actual != e.expected {
t.Errorf("expected %q, got %q", e.expected, actual)
}
})
}
}
func TestDockerGetWeight(t *testing.T) {
containers := []struct {
container docker.ContainerJSON
expected string
}{
{
container: containerJSON(),
expected: "0",
},
{
container: containerJSON(labels(map[string]string{
"traefik.weight": "10",
})),
expected: "10",
},
}
for containerID, e := range containers {
e := e
t.Run(strconv.Itoa(containerID), func(t *testing.T) {
t.Parallel()
dockerData := parseContainer(e.container)
provider := &Provider{}
actual := provider.getWeight(dockerData)
if actual != e.expected {
t.Errorf("expected %q, got %q", e.expected, actual)
}
})
}
}
func TestDockerGetDomain(t *testing.T) {
containers := []struct {
container docker.ContainerJSON
expected string
}{
{
container: containerJSON(),
expected: "docker.localhost",
},
{
container: containerJSON(labels(map[string]string{
"traefik.domain": "foo.bar",
})),
expected: "foo.bar",
},
}
for containerID, e := range containers {
e := e
t.Run(strconv.Itoa(containerID), func(t *testing.T) {
t.Parallel()
dockerData := parseContainer(e.container)
provider := &Provider{
Domain: "docker.localhost",
}
actual := provider.getDomain(dockerData)
if actual != e.expected {
t.Errorf("expected %q, got %q", e.expected, actual)
}
})
}
}
func TestDockerGetProtocol(t *testing.T) {
containers := []struct {
container docker.ContainerJSON
expected string
}{
{
container: containerJSON(),
expected: "http",
},
{
container: containerJSON(labels(map[string]string{
"traefik.protocol": "https",
})),
expected: "https",
},
}
for containerID, e := range containers {
e := e
t.Run(strconv.Itoa(containerID), func(t *testing.T) {
t.Parallel()
dockerData := parseContainer(e.container)
provider := &Provider{}
actual := provider.getProtocol(dockerData)
if actual != e.expected {
t.Errorf("expected %q, got %q", e.expected, actual)
}
})
}
}
func TestDockerGetPassHostHeader(t *testing.T) {
containers := []struct {
container docker.ContainerJSON
expected string
}{
{
container: containerJSON(),
expected: "true",
},
{
container: containerJSON(labels(map[string]string{
"traefik.frontend.passHostHeader": "false",
})),
expected: "false",
},
}
for containerID, e := range containers {
e := e
t.Run(strconv.Itoa(containerID), func(t *testing.T) {
t.Parallel()
dockerData := parseContainer(e.container)
provider := &Provider{}
actual := provider.getPassHostHeader(dockerData)
if actual != e.expected {
t.Errorf("expected %q, got %q", e.expected, actual)
}
})
}
}
func TestDockerGetLabel(t *testing.T) {
containers := []struct {
container docker.ContainerJSON
expected string
}{
{
container: containerJSON(),
expected: "Label not found:",
},
{
container: containerJSON(labels(map[string]string{
"foo": "bar",
})),
expected: "",
},
}
for containerID, e := range containers {
e := e
t.Run(strconv.Itoa(containerID), func(t *testing.T) {
t.Parallel()
dockerData := parseContainer(e.container)
label, err := getLabel(dockerData, "foo")
if e.expected != "" {
if err == nil || !strings.Contains(err.Error(), e.expected) {
t.Errorf("expected an error with %q, got %v", e.expected, err)
}
} else {
if label != "bar" {
t.Errorf("expected label 'bar', got %s", label)
}
}
})
}
}
func TestDockerGetLabels(t *testing.T) {
containers := []struct {
container docker.ContainerJSON
expectedLabels map[string]string
expectedError string
}{
{
container: containerJSON(),
expectedLabels: map[string]string{},
expectedError: "Label not found:",
},
{
container: containerJSON(labels(map[string]string{
"foo": "fooz",
})),
expectedLabels: map[string]string{
"foo": "fooz",
},
expectedError: "Label not found: bar",
},
{
container: containerJSON(labels(map[string]string{
"foo": "fooz",
"bar": "barz",
})),
expectedLabels: map[string]string{
"foo": "fooz",
"bar": "barz",
},
expectedError: "",
},
}
for containerID, e := range containers {
e := e
t.Run(strconv.Itoa(containerID), func(t *testing.T) {
t.Parallel()
dockerData := parseContainer(e.container)
labels, err := getLabels(dockerData, []string{"foo", "bar"})
if !reflect.DeepEqual(labels, e.expectedLabels) {
t.Errorf("expect %v, got %v", e.expectedLabels, labels)
}
if e.expectedError != "" {
if err == nil || !strings.Contains(err.Error(), e.expectedError) {
t.Errorf("expected an error with %q, got %v", e.expectedError, err)
}
}
})
}
}
func TestDockerTraefikFilter(t *testing.T) {
containers := []struct {
container docker.ContainerJSON
exposedByDefault bool
expected bool
}{
{
container: containerJSON(),
exposedByDefault: true,
expected: false,
},
{
container: containerJSON(
labels(map[string]string{
"traefik.enable": "false",
}),
ports(nat.PortMap{
"80/tcp": {},
}),
),
exposedByDefault: true,
expected: false,
},
{
container: containerJSON(
labels(map[string]string{
"traefik.frontend.rule": "Host:foo.bar",
}),
ports(nat.PortMap{
"80/tcp": {},
}),
),
exposedByDefault: true,
expected: true,
},
{
container: containerJSON(
ports(nat.PortMap{
"80/tcp": {},
"443/tcp": {},
}),
),
exposedByDefault: true,
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expected: true,
},
{
container: containerJSON(
ports(nat.PortMap{
"80/tcp": {},
}),
),
exposedByDefault: true,
expected: true,
},
{
container: containerJSON(
labels(map[string]string{
"traefik.port": "80",
}),
ports(nat.PortMap{
"80/tcp": {},
"443/tcp": {},
}),
),
exposedByDefault: true,
expected: true,
},
{
container: containerJSON(
labels(map[string]string{
"traefik.enable": "true",
}),
ports(nat.PortMap{
"80/tcp": {},
}),
),
exposedByDefault: true,
expected: true,
},
{
container: containerJSON(
labels(map[string]string{
"traefik.enable": "anything",
}),
ports(nat.PortMap{
"80/tcp": {},
}),
),
exposedByDefault: true,
expected: true,
},
{
container: containerJSON(
labels(map[string]string{
"traefik.frontend.rule": "Host:foo.bar",
}),
ports(nat.PortMap{
"80/tcp": {},
}),
),
exposedByDefault: true,
expected: true,
},
{
container: containerJSON(
ports(nat.PortMap{
"80/tcp": {},
}),
),
exposedByDefault: false,
expected: false,
},
{
container: containerJSON(
labels(map[string]string{
"traefik.enable": "true",
}),
ports(nat.PortMap{
"80/tcp": {},
}),
),
exposedByDefault: false,
expected: true,
},
}
for containerID, e := range containers {
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)
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)
}
})
}
}
func TestDockerLoadDockerConfig(t *testing.T) {
cases := []struct {
containers []docker.ContainerJSON
expectedFrontends map[string]*types.Frontend
expectedBackends map[string]*types.Backend
}{
{
containers: []docker.ContainerJSON{},
expectedFrontends: map[string]*types.Frontend{},
expectedBackends: map[string]*types.Backend{},
},
{
containers: []docker.ContainerJSON{
containerJSON(
name("test"),
ports(nat.PortMap{
"80/tcp": {},
}),
withNetwork("bridge", ipv4("127.0.0.1")),
),
},
expectedFrontends: map[string]*types.Frontend{
"frontend-Host-test-docker-localhost": {
Backend: "backend-test",
PassHostHeader: true,
EntryPoints: []string{},
BasicAuth: []string{},
Routes: map[string]types.Route{
"route-frontend-Host-test-docker-localhost": {
Rule: "Host: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,
},
},
},
{
containers: []docker.ContainerJSON{
containerJSON(
name("test1"),
labels(map[string]string{
"traefik.backend": "foobar",
"traefik.frontend.entryPoints": "http,https",
"traefik.frontend.auth.basic": "test:$apr1$H6uskkkW$IgXLP6ewTrSuBkTrqE8wj/,test2:$apr1$d9hr9HBB$4HxwgUir3HP4EsggP/QNo0",
}),
ports(nat.PortMap{
"80/tcp": {},
}),
withNetwork("bridge", ipv4("127.0.0.1")),
),
containerJSON(
name("test2"),
labels(map[string]string{
"traefik.backend": "foobar",
}),
ports(nat.PortMap{
"80/tcp": {},
}),
withNetwork("bridge", ipv4("127.0.0.1")),
),
},
expectedFrontends: map[string]*types.Frontend{
"frontend-Host-test1-docker-localhost": {
Backend: "backend-foobar",
PassHostHeader: true,
EntryPoints: []string{"http", "https"},
BasicAuth: []string{"test:$apr1$H6uskkkW$IgXLP6ewTrSuBkTrqE8wj/", "test2:$apr1$d9hr9HBB$4HxwgUir3HP4EsggP/QNo0"},
Routes: map[string]types.Route{
"route-frontend-Host-test1-docker-localhost": {
Rule: "Host:test1.docker.localhost",
},
},
},
"frontend-Host-test2-docker-localhost": {
Backend: "backend-foobar",
PassHostHeader: true,
EntryPoints: []string{},
BasicAuth: []string{},
Routes: map[string]types.Route{
"route-frontend-Host-test2-docker-localhost": {
Rule: "Host:test2.docker.localhost",
},
},
},
},
expectedBackends: map[string]*types.Backend{
"backend-foobar": {
Servers: map[string]types.Server{
"server-test1": {
URL: "http://127.0.0.1:80",
Weight: 0,
},
"server-test2": {
URL: "http://127.0.0.1:80",
Weight: 0,
},
},
CircuitBreaker: nil,
},
},
},
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{
containers: []docker.ContainerJSON{
containerJSON(
name("test1"),
labels(map[string]string{
"traefik.backend": "foobar",
"traefik.frontend.entryPoints": "http,https",
"traefik.backend.maxconn.amount": "1000",
"traefik.backend.maxconn.extractorfunc": "somethingelse",
"traefik.backend.loadbalancer.method": "drr",
"traefik.backend.circuitbreaker.expression": "NetworkErrorRatio() > 0.5",
}),
ports(nat.PortMap{
"80/tcp": {},
}),
withNetwork("bridge", ipv4("127.0.0.1")),
),
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},
expectedFrontends: map[string]*types.Frontend{
"frontend-Host-test1-docker-localhost": {
Backend: "backend-foobar",
PassHostHeader: true,
EntryPoints: []string{"http", "https"},
BasicAuth: []string{},
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Routes: map[string]types.Route{
"route-frontend-Host-test1-docker-localhost": {
Rule: "Host:test1.docker.localhost",
},
},
},
},
expectedBackends: map[string]*types.Backend{
"backend-foobar": {
Servers: map[string]types.Server{
"server-test1": {
URL: "http://127.0.0.1:80",
Weight: 0,
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},
},
CircuitBreaker: &types.CircuitBreaker{
Expression: "NetworkErrorRatio() > 0.5",
},
LoadBalancer: &types.LoadBalancer{
Method: "drr",
},
MaxConn: &types.MaxConn{
Amount: 1000,
ExtractorFunc: "somethingelse",
},
},
},
},
}
for caseID, c := range cases {
c := c
t.Run(strconv.Itoa(caseID), func(t *testing.T) {
t.Parallel()
var dockerDataList []dockerData
for _, container := range c.containers {
dockerData := parseContainer(container)
dockerDataList = append(dockerDataList, dockerData)
}
provider := &Provider{
Domain: "docker.localhost",
ExposedByDefault: true,
}
actualConfig := provider.loadDockerConfig(dockerDataList)
// Compare backends
if !reflect.DeepEqual(actualConfig.Backends, c.expectedBackends) {
t.Errorf("expected %#v, got %#v", c.expectedBackends, actualConfig.Backends)
}
if !reflect.DeepEqual(actualConfig.Frontends, c.expectedFrontends) {
t.Errorf("expected %#v, got %#v", c.expectedFrontends, actualConfig.Frontends)
}
})
}
}