267 lines
7.7 KiB
Go
267 lines
7.7 KiB
Go
package server
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import (
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"context"
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"net/http"
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"net/http/httptest"
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"testing"
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"time"
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"github.com/containous/traefik/pkg/config"
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"github.com/containous/traefik/pkg/config/static"
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th "github.com/containous/traefik/pkg/testhelpers"
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"github.com/containous/traefik/pkg/types"
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"github.com/stretchr/testify/assert"
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)
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func TestListenProvidersSkipsEmptyConfigs(t *testing.T) {
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server, stop, invokeStopChan := setupListenProvider(10 * time.Millisecond)
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defer invokeStopChan()
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go func() {
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for {
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select {
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case <-stop:
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return
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case <-server.configurationValidatedChan:
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t.Error("An empty configuration was published but it should not")
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}
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}
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}()
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server.configurationChan <- config.Message{ProviderName: "kubernetes"}
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// give some time so that the configuration can be processed
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time.Sleep(100 * time.Millisecond)
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}
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func TestListenProvidersSkipsSameConfigurationForProvider(t *testing.T) {
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server, stop, invokeStopChan := setupListenProvider(10 * time.Millisecond)
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defer invokeStopChan()
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publishedConfigCount := 0
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go func() {
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for {
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select {
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case <-stop:
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return
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case conf := <-server.configurationValidatedChan:
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// set the current configuration
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// this is usually done in the processing part of the published configuration
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// so we have to emulate the behavior here
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currentConfigurations := server.currentConfigurations.Get().(config.Configurations)
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currentConfigurations[conf.ProviderName] = conf.Configuration
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server.currentConfigurations.Set(currentConfigurations)
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publishedConfigCount++
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if publishedConfigCount > 1 {
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t.Error("Same configuration should not be published multiple times")
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}
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}
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}
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}()
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conf := &config.Configuration{}
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conf.HTTP = th.BuildConfiguration(
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th.WithRouters(th.WithRouter("foo")),
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th.WithLoadBalancerServices(th.WithService("bar")),
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)
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// provide a configuration
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server.configurationChan <- config.Message{ProviderName: "kubernetes", Configuration: conf}
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// give some time so that the configuration can be processed
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time.Sleep(20 * time.Millisecond)
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// provide the same configuration a second time
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server.configurationChan <- config.Message{ProviderName: "kubernetes", Configuration: conf}
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// give some time so that the configuration can be processed
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time.Sleep(100 * time.Millisecond)
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}
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func TestListenProvidersPublishesConfigForEachProvider(t *testing.T) {
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server, stop, invokeStopChan := setupListenProvider(10 * time.Millisecond)
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defer invokeStopChan()
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publishedProviderConfigCount := map[string]int{}
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publishedConfigCount := 0
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consumePublishedConfigsDone := make(chan bool)
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go func() {
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for {
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select {
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case <-stop:
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return
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case newConfig := <-server.configurationValidatedChan:
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publishedProviderConfigCount[newConfig.ProviderName]++
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publishedConfigCount++
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if publishedConfigCount == 2 {
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consumePublishedConfigsDone <- true
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return
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}
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}
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}
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}()
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conf := &config.Configuration{}
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conf.HTTP = th.BuildConfiguration(
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th.WithRouters(th.WithRouter("foo")),
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th.WithLoadBalancerServices(th.WithService("bar")),
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)
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server.configurationChan <- config.Message{ProviderName: "kubernetes", Configuration: conf}
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server.configurationChan <- config.Message{ProviderName: "marathon", Configuration: conf}
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select {
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case <-consumePublishedConfigsDone:
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if val := publishedProviderConfigCount["kubernetes"]; val != 1 {
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t.Errorf("Got %d configuration publication(s) for provider %q, want 1", val, "kubernetes")
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}
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if val := publishedProviderConfigCount["marathon"]; val != 1 {
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t.Errorf("Got %d configuration publication(s) for provider %q, want 1", val, "marathon")
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}
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case <-time.After(100 * time.Millisecond):
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t.Errorf("Published configurations were not consumed in time")
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}
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}
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// setupListenProvider configures the Server and starts listenProviders
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func setupListenProvider(throttleDuration time.Duration) (server *Server, stop chan bool, invokeStopChan func()) {
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stop = make(chan bool)
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invokeStopChan = func() {
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stop <- true
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}
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staticConfiguration := static.Configuration{
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Providers: &static.Providers{
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ProvidersThrottleDuration: types.Duration(throttleDuration),
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},
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}
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server = NewServer(staticConfiguration, nil, nil, nil)
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go server.listenProviders(stop)
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return server, stop, invokeStopChan
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}
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func TestServerResponseEmptyBackend(t *testing.T) {
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const requestPath = "/path"
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const routeRule = "Path(`" + requestPath + "`)"
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testCases := []struct {
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desc string
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config func(testServerURL string) *config.HTTPConfiguration
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expectedStatusCode int
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}{
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{
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desc: "Ok",
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config: func(testServerURL string) *config.HTTPConfiguration {
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return th.BuildConfiguration(
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th.WithRouters(th.WithRouter("foo",
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th.WithEntryPoints("http"),
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th.WithServiceName("bar"),
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th.WithRule(routeRule)),
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),
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th.WithLoadBalancerServices(th.WithService("bar",
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th.WithServers(th.WithServer(testServerURL))),
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),
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)
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},
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expectedStatusCode: http.StatusOK,
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},
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{
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desc: "No Frontend",
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config: func(testServerURL string) *config.HTTPConfiguration {
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return th.BuildConfiguration()
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},
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expectedStatusCode: http.StatusNotFound,
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},
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{
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desc: "Empty Backend LB",
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config: func(testServerURL string) *config.HTTPConfiguration {
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return th.BuildConfiguration(
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th.WithRouters(th.WithRouter("foo",
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th.WithEntryPoints("http"),
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th.WithServiceName("bar"),
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th.WithRule(routeRule)),
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),
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th.WithLoadBalancerServices(th.WithService("bar")),
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)
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},
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expectedStatusCode: http.StatusServiceUnavailable,
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},
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{
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desc: "Empty Backend LB Sticky",
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config: func(testServerURL string) *config.HTTPConfiguration {
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return th.BuildConfiguration(
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th.WithRouters(th.WithRouter("foo",
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th.WithEntryPoints("http"),
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th.WithServiceName("bar"),
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th.WithRule(routeRule)),
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),
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th.WithLoadBalancerServices(th.WithService("bar",
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th.WithStickiness("test")),
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),
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)
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},
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expectedStatusCode: http.StatusServiceUnavailable,
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},
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{
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desc: "Empty Backend LB",
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config: func(testServerURL string) *config.HTTPConfiguration {
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return th.BuildConfiguration(
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th.WithRouters(th.WithRouter("foo",
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th.WithEntryPoints("http"),
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th.WithServiceName("bar"),
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th.WithRule(routeRule)),
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),
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th.WithLoadBalancerServices(th.WithService("bar")),
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)
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},
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expectedStatusCode: http.StatusServiceUnavailable,
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},
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{
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desc: "Empty Backend LB Sticky",
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config: func(testServerURL string) *config.HTTPConfiguration {
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return th.BuildConfiguration(
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th.WithRouters(th.WithRouter("foo",
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th.WithEntryPoints("http"),
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th.WithServiceName("bar"),
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th.WithRule(routeRule)),
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),
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th.WithLoadBalancerServices(th.WithService("bar",
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th.WithStickiness("test")),
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),
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)
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},
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expectedStatusCode: http.StatusServiceUnavailable,
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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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testServer := httptest.NewServer(http.HandlerFunc(func(rw http.ResponseWriter, req *http.Request) {
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rw.WriteHeader(http.StatusOK)
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}))
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defer testServer.Close()
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globalConfig := static.Configuration{}
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entryPointsConfig := TCPEntryPoints{
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"http": &TCPEntryPoint{},
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}
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srv := NewServer(globalConfig, nil, entryPointsConfig, nil)
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rtConf := config.NewRuntimeConfig(config.Configuration{HTTP: test.config(testServer.URL)})
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entryPoints, _ := srv.createHTTPHandlers(context.Background(), rtConf, []string{"http"})
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responseRecorder := &httptest.ResponseRecorder{}
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request := httptest.NewRequest(http.MethodGet, testServer.URL+requestPath, nil)
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entryPoints["http"].ServeHTTP(responseRecorder, request)
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assert.Equal(t, test.expectedStatusCode, responseRecorder.Result().StatusCode, "status code")
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})
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}
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}
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