Fix spamming events in listenProviders
Signed-off-by: Emile Vauge <emile@vauge.com>
This commit is contained in:
Emile Vauge
parent
2a209c23c4
commit
606e667b88
2 changed files with 70 additions and 47 deletions
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@ -10,6 +10,7 @@ import (
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"io"
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"io/ioutil"
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"os"
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"reflect"
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"strconv"
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"strings"
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"text/template"
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@ -53,6 +54,7 @@ type Kubernetes struct {
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Endpoint string `description:"Kubernetes server endpoint"`
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DisablePassHostHeaders bool `description:"Kubernetes disable PassHost Headers"`
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Namespaces Namespaces `description:"Kubernetes namespaces"`
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lastConfiguration safe.Safe
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}
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func (provider *Kubernetes) createClient() (k8s.Client, error) {
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@ -124,9 +126,14 @@ func (provider *Kubernetes) Provide(configurationChan chan<- types.ConfigMessage
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if err != nil {
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return err
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}
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configurationChan <- types.ConfigMessage{
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ProviderName: "kubernetes",
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Configuration: provider.loadConfig(*templateObjects),
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if reflect.DeepEqual(provider.lastConfiguration.Get(), templateObjects) {
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log.Debugf("Skipping event from kubernetes %+v", event)
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} else {
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provider.lastConfiguration.Set(templateObjects)
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configurationChan <- types.ConfigMessage{
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ProviderName: "kubernetes",
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Configuration: provider.loadConfig(*templateObjects),
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}
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}
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}
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}
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@ -146,9 +153,14 @@ func (provider *Kubernetes) Provide(configurationChan chan<- types.ConfigMessage
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if err != nil {
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return err
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}
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configurationChan <- types.ConfigMessage{
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ProviderName: "kubernetes",
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Configuration: provider.loadConfig(*templateObjects),
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if reflect.DeepEqual(provider.lastConfiguration.Get(), templateObjects) {
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log.Debugf("Skipping configuration from kubernetes %+v", templateObjects)
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} else {
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provider.lastConfiguration.Set(templateObjects)
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configurationChan <- types.ConfigMessage{
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ProviderName: "kubernetes",
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Configuration: provider.loadConfig(*templateObjects),
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}
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}
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return nil
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93
server.go
93
server.go
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@ -137,28 +137,48 @@ func (server *Server) listenProviders(stop chan bool) {
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if !ok {
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return
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}
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server.defaultConfigurationValues(configMsg.Configuration)
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currentConfigurations := server.currentConfigurations.Get().(configs)
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jsonConf, _ := json.Marshal(configMsg.Configuration)
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log.Debugf("Configuration received from provider %s: %s", configMsg.ProviderName, string(jsonConf))
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lastConfigs.Set(configMsg.ProviderName, &configMsg)
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lastReceivedConfigurationValue := lastReceivedConfiguration.Get().(time.Time)
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if time.Now().After(lastReceivedConfigurationValue.Add(time.Duration(server.globalConfiguration.ProvidersThrottleDuration))) {
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log.Debugf("Last %s config received more than %s, OK", configMsg.ProviderName, server.globalConfiguration.ProvidersThrottleDuration)
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// last config received more than n s ago
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server.configurationValidatedChan <- configMsg
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if configMsg.Configuration == nil || configMsg.Configuration.Backends == nil && configMsg.Configuration.Frontends == nil {
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log.Infof("Skipping empty Configuration for provider %s", configMsg.ProviderName)
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} else if reflect.DeepEqual(currentConfigurations[configMsg.ProviderName], configMsg.Configuration) {
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log.Infof("Skipping same configuration for provider %s", configMsg.ProviderName)
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} else {
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log.Debugf("Last %s config received less than %s, waiting...", configMsg.ProviderName, server.globalConfiguration.ProvidersThrottleDuration)
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safe.Go(func() {
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<-time.After(server.globalConfiguration.ProvidersThrottleDuration)
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lastReceivedConfigurationValue := lastReceivedConfiguration.Get().(time.Time)
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if time.Now().After(lastReceivedConfigurationValue.Add(time.Duration(server.globalConfiguration.ProvidersThrottleDuration))) {
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log.Debugf("Waited for %s config, OK", configMsg.ProviderName)
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if lastConfig, ok := lastConfigs.Get(configMsg.ProviderName); ok {
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server.configurationValidatedChan <- *lastConfig.(*types.ConfigMessage)
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lastConfigs.Set(configMsg.ProviderName, &configMsg)
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lastReceivedConfigurationValue := lastReceivedConfiguration.Get().(time.Time)
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if time.Now().After(lastReceivedConfigurationValue.Add(time.Duration(server.globalConfiguration.ProvidersThrottleDuration))) {
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log.Debugf("Last %s config received more than %s, OK", configMsg.ProviderName, server.globalConfiguration.ProvidersThrottleDuration)
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// last config received more than n s ago
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server.configurationValidatedChan <- configMsg
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} else {
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log.Debugf("Last %s config received less than %s, waiting...", configMsg.ProviderName, server.globalConfiguration.ProvidersThrottleDuration)
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safe.Go(func() {
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<-time.After(server.globalConfiguration.ProvidersThrottleDuration)
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lastReceivedConfigurationValue := lastReceivedConfiguration.Get().(time.Time)
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if time.Now().After(lastReceivedConfigurationValue.Add(time.Duration(server.globalConfiguration.ProvidersThrottleDuration))) {
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log.Debugf("Waited for %s config, OK", configMsg.ProviderName)
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if lastConfig, ok := lastConfigs.Get(configMsg.ProviderName); ok {
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server.configurationValidatedChan <- *lastConfig.(*types.ConfigMessage)
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}
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}
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}
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})
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})
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}
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lastReceivedConfiguration.Set(time.Now())
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}
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lastReceivedConfiguration.Set(time.Now())
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}
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}
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}
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func (server *Server) defaultConfigurationValues(configuration *types.Configuration) {
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if configuration == nil || configuration.Frontends == nil {
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return
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}
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for _, frontend := range configuration.Frontends {
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// default endpoints if not defined in frontends
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if len(frontend.EntryPoints) == 0 {
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frontend.EntryPoints = server.globalConfiguration.DefaultEntryPoints
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}
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}
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}
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@ -173,28 +193,23 @@ func (server *Server) listenConfigurations(stop chan bool) {
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return
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}
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currentConfigurations := server.currentConfigurations.Get().(configs)
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if configMsg.Configuration == nil {
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log.Infof("Skipping empty Configuration for provider %s", configMsg.ProviderName)
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} else if reflect.DeepEqual(currentConfigurations[configMsg.ProviderName], configMsg.Configuration) {
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log.Infof("Skipping same configuration for provider %s", configMsg.ProviderName)
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} else {
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// Copy configurations to new map so we don't change current if LoadConfig fails
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newConfigurations := make(configs)
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for k, v := range currentConfigurations {
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newConfigurations[k] = v
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}
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newConfigurations[configMsg.ProviderName] = configMsg.Configuration
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newServerEntryPoints, err := server.loadConfig(newConfigurations, server.globalConfiguration)
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if err == nil {
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for newServerEntryPointName, newServerEntryPoint := range newServerEntryPoints {
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server.serverEntryPoints[newServerEntryPointName].httpRouter.UpdateHandler(newServerEntryPoint.httpRouter.GetHandler())
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log.Infof("Server configuration reloaded on %s", server.serverEntryPoints[newServerEntryPointName].httpServer.Addr)
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}
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server.currentConfigurations.Set(newConfigurations)
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} else {
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log.Error("Error loading new configuration, aborted ", err)
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// Copy configurations to new map so we don't change current if LoadConfig fails
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newConfigurations := make(configs)
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for k, v := range currentConfigurations {
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newConfigurations[k] = v
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}
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newConfigurations[configMsg.ProviderName] = configMsg.Configuration
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newServerEntryPoints, err := server.loadConfig(newConfigurations, server.globalConfiguration)
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if err == nil {
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for newServerEntryPointName, newServerEntryPoint := range newServerEntryPoints {
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server.serverEntryPoints[newServerEntryPointName].httpRouter.UpdateHandler(newServerEntryPoint.httpRouter.GetHandler())
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log.Infof("Server configuration reloaded on %s", server.serverEntryPoints[newServerEntryPointName].httpServer.Addr)
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}
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server.currentConfigurations.Set(newConfigurations)
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} else {
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log.Error("Error loading new configuration, aborted ", err)
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}
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}
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}
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@ -376,10 +391,6 @@ func (server *Server) loadConfig(configurations configs, globalConfiguration Glo
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log.Debugf("Creating frontend %s", frontendName)
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fwd, _ := forward.New(forward.Logger(oxyLogger), forward.PassHostHeader(frontend.PassHostHeader))
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saveBackend := middlewares.NewSaveBackend(fwd)
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// default endpoints if not defined in frontends
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if len(frontend.EntryPoints) == 0 {
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frontend.EntryPoints = globalConfiguration.DefaultEntryPoints
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}
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if len(frontend.EntryPoints) == 0 {
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log.Errorf("No entrypoint defined for frontend %s, defaultEntryPoints:%s", frontendName, globalConfiguration.DefaultEntryPoints)
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log.Errorf("Skipping frontend %s...", frontendName)
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