refactor: Consul Catalog labels.
This commit is contained in:
Fernandez Ludovic
Traefiker Bot
parent
46db91ce73
commit
ff61cc971e
14 changed files with 1715 additions and 2018 deletions
518
provider/consulcatalog/config_test.go
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518
provider/consulcatalog/config_test.go
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package consulcatalog
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import (
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"testing"
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"text/template"
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"github.com/containous/traefik/provider/label"
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"github.com/containous/traefik/types"
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"github.com/hashicorp/consul/api"
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"github.com/stretchr/testify/assert"
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)
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func TestProviderBuildConfiguration(t *testing.T) {
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p := &Provider{
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Domain: "localhost",
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Prefix: "traefik",
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ExposedByDefault: false,
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FrontEndRule: "Host:{{.ServiceName}}.{{.Domain}}",
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frontEndRuleTemplate: template.New("consul catalog frontend rule"),
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}
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testCases := []struct {
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desc string
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nodes []catalogUpdate
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expectedFrontends map[string]*types.Frontend
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expectedBackends map[string]*types.Backend
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}{
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{
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desc: "Should build config of nothing",
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nodes: []catalogUpdate{},
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expectedFrontends: map[string]*types.Frontend{},
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expectedBackends: map[string]*types.Backend{},
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},
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{
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desc: "Should build config with no frontend and backend",
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nodes: []catalogUpdate{
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{
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Service: &serviceUpdate{
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ServiceName: "test",
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},
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},
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},
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expectedFrontends: map[string]*types.Frontend{},
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expectedBackends: map[string]*types.Backend{},
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},
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{
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desc: "Should build config who contains one frontend and one backend",
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nodes: []catalogUpdate{
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{
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Service: &serviceUpdate{
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ServiceName: "test",
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Attributes: []string{
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"random.foo=bar",
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label.TraefikBackendLoadBalancerMethod + "=drr",
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label.TraefikBackendCircuitBreakerExpression + "=NetworkErrorRatio() > 0.5",
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label.TraefikBackendMaxConnAmount + "=1000",
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label.TraefikBackendMaxConnExtractorFunc + "=client.ip",
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label.TraefikFrontendAuthBasic + "=test:$apr1$H6uskkkW$IgXLP6ewTrSuBkTrqE8wj/,test2:$apr1$d9hr9HBB$4HxwgUir3HP4EsggP/QNo0",
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},
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},
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Nodes: []*api.ServiceEntry{
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{
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Service: &api.AgentService{
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Service: "test",
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Address: "127.0.0.1",
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Port: 80,
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Tags: []string{
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"random.foo=bar",
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label.Prefix + "backend.weight=42", // Deprecated label
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label.TraefikFrontendPassHostHeader + "=true",
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label.TraefikProtocol + "=https",
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},
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},
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Node: &api.Node{
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Node: "localhost",
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Address: "127.0.0.1",
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},
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},
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},
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},
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},
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expectedFrontends: map[string]*types.Frontend{
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"frontend-test": {
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Backend: "backend-test",
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PassHostHeader: true,
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Routes: map[string]types.Route{
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"route-host-test": {
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Rule: "Host:test.localhost",
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},
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},
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EntryPoints: []string{},
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BasicAuth: []string{"test:$apr1$H6uskkkW$IgXLP6ewTrSuBkTrqE8wj/", "test2:$apr1$d9hr9HBB$4HxwgUir3HP4EsggP/QNo0"},
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},
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},
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expectedBackends: map[string]*types.Backend{
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"backend-test": {
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Servers: map[string]types.Server{
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"test-0-us4-27hAOu2ARV7nNrmv6GoKlcA": {
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URL: "https://127.0.0.1:80",
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Weight: 42,
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},
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},
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LoadBalancer: &types.LoadBalancer{
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Method: "drr",
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},
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CircuitBreaker: &types.CircuitBreaker{
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Expression: "NetworkErrorRatio() > 0.5",
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},
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MaxConn: &types.MaxConn{
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Amount: 1000,
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ExtractorFunc: "client.ip",
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},
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},
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},
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},
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}
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for _, test := range testCases {
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test := test
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t.Run(test.desc, func(t *testing.T) {
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t.Parallel()
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nodes := fakeLoadTraefikLabelsSlice(test.nodes, p.Prefix)
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actualConfig := p.buildConfigurationV2(nodes)
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assert.NotNil(t, actualConfig)
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assert.Equal(t, test.expectedBackends, actualConfig.Backends)
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assert.Equal(t, test.expectedFrontends, actualConfig.Frontends)
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})
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}
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}
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func TestGetTag(t *testing.T) {
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testCases := []struct {
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desc string
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tags []string
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key string
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defaultValue string
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expected string
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}{
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{
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desc: "Should return value of foo.bar key",
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tags: []string{
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"foo.bar=random",
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"traefik.backend.weight=42",
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"management",
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},
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key: "foo.bar",
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defaultValue: "0",
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expected: "random",
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},
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{
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desc: "Should return default value when nonexistent key",
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tags: []string{
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"foo.bar.foo.bar=random",
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"traefik.backend.weight=42",
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"management",
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},
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key: "foo.bar",
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defaultValue: "0",
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expected: "0",
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},
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}
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for _, test := range testCases {
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test := test
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t.Run(test.desc, func(t *testing.T) {
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t.Parallel()
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actual := getTag(test.key, test.tags, test.defaultValue)
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assert.Equal(t, test.expected, actual)
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})
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}
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}
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func TestHasTag(t *testing.T) {
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testCases := []struct {
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desc string
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name string
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tags []string
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expected bool
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}{
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{
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desc: "tag without value",
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name: "foo",
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tags: []string{"foo"},
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expected: true,
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},
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{
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desc: "tag with value",
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name: "foo",
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tags: []string{"foo=true"},
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expected: true,
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},
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{
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desc: "missing tag",
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name: "foo",
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tags: []string{"foobar=true"},
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expected: false,
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},
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}
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for _, test := range testCases {
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test := test
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t.Run(test.desc, func(t *testing.T) {
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t.Parallel()
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actual := hasTag(test.name, test.tags)
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assert.Equal(t, test.expected, actual)
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})
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}
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}
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func TestProviderGetPrefixedName(t *testing.T) {
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testCases := []struct {
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desc string
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name string
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prefix string
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expected string
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}{
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{
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desc: "empty name with prefix",
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name: "",
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prefix: "foo",
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expected: "",
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},
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{
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desc: "empty name without prefix",
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name: "",
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prefix: "",
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expected: "",
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},
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{
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desc: "with prefix",
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name: "bar",
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prefix: "foo",
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expected: "foo.bar",
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},
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{
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desc: "without prefix",
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name: "bar",
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prefix: "",
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expected: "bar",
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},
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}
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for _, test := range testCases {
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test := test
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t.Run(test.desc, func(t *testing.T) {
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t.Parallel()
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p := &Provider{Prefix: test.prefix}
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actual := p.getPrefixedName(test.name)
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assert.Equal(t, test.expected, actual)
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})
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}
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}
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func TestProviderGetAttribute(t *testing.T) {
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testCases := []struct {
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desc string
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tags []string
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key string
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defaultValue string
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prefix string
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expected string
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}{
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{
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desc: "Should return tag value 42",
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prefix: "traefik",
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tags: []string{
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"foo.bar=ramdom",
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"traefik.backend.weight=42",
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},
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key: "backend.weight",
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defaultValue: "0",
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expected: "42",
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},
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{
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desc: "Should return tag default value 0",
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prefix: "traefik",
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tags: []string{
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"foo.bar=ramdom",
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"traefik.backend.wei=42",
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},
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key: "backend.weight",
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defaultValue: "0",
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expected: "0",
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},
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{
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desc: "Should return tag value 42 when empty prefix",
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tags: []string{
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"foo.bar=ramdom",
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"backend.weight=42",
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},
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key: "backend.weight",
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defaultValue: "0",
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expected: "42",
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},
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{
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desc: "Should return default value 0 when empty prefix",
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tags: []string{
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"foo.bar=ramdom",
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"backend.wei=42",
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},
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key: "backend.weight",
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defaultValue: "0",
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expected: "0",
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},
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{
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desc: "Should return for.bar key value random when empty prefix",
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tags: []string{
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"foo.bar=ramdom",
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"backend.wei=42",
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},
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key: "foo.bar",
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defaultValue: "random",
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expected: "ramdom",
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},
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}
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for _, test := range testCases {
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test := test
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t.Run(test.desc, func(t *testing.T) {
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t.Parallel()
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p := &Provider{
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Domain: "localhost",
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Prefix: test.prefix,
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}
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actual := p.getAttribute(test.key, test.tags, test.defaultValue)
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assert.Equal(t, test.expected, actual)
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})
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}
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}
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func TestProviderGetFrontendRule(t *testing.T) {
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testCases := []struct {
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desc string
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service serviceUpdate
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expected string
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}{
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{
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desc: "Should return default host foo.localhost",
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service: serviceUpdate{
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ServiceName: "foo",
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Attributes: []string{},
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},
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expected: "Host:foo.localhost",
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},
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{
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desc: "Should return host *.example.com",
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service: serviceUpdate{
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ServiceName: "foo",
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Attributes: []string{
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"traefik.frontend.rule=Host:*.example.com",
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},
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},
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expected: "Host:*.example.com",
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},
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{
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desc: "Should return host foo.example.com",
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service: serviceUpdate{
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ServiceName: "foo",
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Attributes: []string{
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"traefik.frontend.rule=Host:{{.ServiceName}}.example.com",
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},
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},
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expected: "Host:foo.example.com",
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},
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{
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desc: "Should return path prefix /bar",
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service: serviceUpdate{
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ServiceName: "foo",
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Attributes: []string{
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"traefik.frontend.rule=PathPrefix:{{getTag \"contextPath\" .Attributes \"/\"}}",
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"contextPath=/bar",
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},
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},
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expected: "PathPrefix:/bar",
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},
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}
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for _, test := range testCases {
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test := test
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t.Run(test.desc, func(t *testing.T) {
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t.Parallel()
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p := &Provider{
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Domain: "localhost",
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Prefix: "traefik",
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FrontEndRule: "Host:{{.ServiceName}}.{{.Domain}}",
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frontEndRuleTemplate: template.New("consul catalog frontend rule"),
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}
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p.setupFrontEndRuleTemplate()
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labels := tagsToNeutralLabels(test.service.Attributes, p.Prefix)
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test.service.TraefikLabels = labels
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actual := p.getFrontendRule(test.service)
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assert.Equal(t, test.expected, actual)
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})
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}
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}
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func TestGetBackendAddress(t *testing.T) {
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testCases := []struct {
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desc string
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node *api.ServiceEntry
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expected string
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}{
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{
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desc: "Should return the address of the service",
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node: &api.ServiceEntry{
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Node: &api.Node{
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Address: "10.1.0.1",
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},
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Service: &api.AgentService{
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Address: "10.2.0.1",
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},
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},
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expected: "10.2.0.1",
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},
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{
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desc: "Should return the address of the node",
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node: &api.ServiceEntry{
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Node: &api.Node{
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Address: "10.1.0.1",
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},
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Service: &api.AgentService{
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Address: "",
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},
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},
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expected: "10.1.0.1",
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},
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}
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for _, test := range testCases {
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test := test
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t.Run(test.desc, func(t *testing.T) {
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t.Parallel()
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actual := getBackendAddress(test.node)
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assert.Equal(t, test.expected, actual)
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})
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}
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}
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func TestGetServerName(t *testing.T) {
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testCases := []struct {
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desc string
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node *api.ServiceEntry
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expected string
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}{
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{
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desc: "Should create backend name without tags",
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node: &api.ServiceEntry{
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Service: &api.AgentService{
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Service: "api",
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Address: "10.0.0.1",
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Port: 80,
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Tags: []string{},
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},
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},
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expected: "api-0-eUSiqD6uNvvh6zxsY-OeRi8ZbaE",
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},
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{
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desc: "Should create backend name with multiple tags",
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node: &api.ServiceEntry{
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Service: &api.AgentService{
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Service: "api",
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Address: "10.0.0.1",
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Port: 80,
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Tags: []string{"traefik.weight=42", "traefik.enable=true"},
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},
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},
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expected: "api-1-eJ8MR2JxjXyZgs1bhurVa0-9OI8",
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},
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{
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desc: "Should create backend name with one tag",
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node: &api.ServiceEntry{
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Service: &api.AgentService{
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Service: "api",
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Address: "10.0.0.1",
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Port: 80,
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Tags: []string{"a funny looking tag"},
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},
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},
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expected: "api-2-lMCDCsG7sh0SCXOHo4oBOQB-9D4",
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},
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}
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for i, test := range testCases {
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test := test
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i := i
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t.Run(test.desc, func(t *testing.T) {
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t.Parallel()
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actual := getServerName(test.node, i)
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assert.Equal(t, test.expected, actual)
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})
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}
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}
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func fakeLoadTraefikLabelsSlice(nodes []catalogUpdate, prefix string) []catalogUpdate {
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var result []catalogUpdate
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for _, node := range nodes {
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labels := tagsToNeutralLabels(node.Service.Attributes, prefix)
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node.Service.TraefikLabels = labels
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result = append(result, node)
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}
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return result
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}
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