コード例 #1
0
func StartControllers(s *options.CMServer, kubeClient *client.Client, kubeconfig *restclient.Config, stop <-chan struct{}) error {
	go endpointcontroller.NewEndpointController(clientset.NewForConfigOrDie(restclient.AddUserAgent(kubeconfig, "endpoint-controller")), ResyncPeriod(s)).
		Run(s.ConcurrentEndpointSyncs, wait.NeverStop)

	go replicationcontroller.NewReplicationManager(
		clientset.NewForConfigOrDie(restclient.AddUserAgent(kubeconfig, "replication-controller")),
		ResyncPeriod(s),
		replicationcontroller.BurstReplicas,
		s.LookupCacheSizeForRC,
	).Run(s.ConcurrentRCSyncs, wait.NeverStop)

	if s.TerminatedPodGCThreshold > 0 {
		go gc.New(clientset.NewForConfigOrDie(restclient.AddUserAgent(kubeconfig, "garbage-collector")), ResyncPeriod(s), s.TerminatedPodGCThreshold).
			Run(wait.NeverStop)
	}

	cloud, err := cloudprovider.InitCloudProvider(s.CloudProvider, s.CloudConfigFile)
	if err != nil {
		glog.Fatalf("Cloud provider could not be initialized: %v", err)
	}

	// this cidr has been validated already
	_, clusterCIDR, _ := net.ParseCIDR(s.ClusterCIDR)
	nodeController := nodecontroller.NewNodeController(cloud, clientset.NewForConfigOrDie(restclient.AddUserAgent(kubeconfig, "node-controller")),
		s.PodEvictionTimeout.Duration, util.NewTokenBucketRateLimiter(s.DeletingPodsQps, s.DeletingPodsBurst),
		util.NewTokenBucketRateLimiter(s.DeletingPodsQps, s.DeletingPodsBurst),
		s.NodeMonitorGracePeriod.Duration, s.NodeStartupGracePeriod.Duration, s.NodeMonitorPeriod.Duration, clusterCIDR, s.AllocateNodeCIDRs)
	nodeController.Run(s.NodeSyncPeriod.Duration)

	if len(s.NetworkProvider) > 0 {
		if err := ProbeNetworkProviders(s.NetworkProvider); err != nil {
			glog.Fatalf("Network provider could not be initialized: %v", err)
		}
		networkProvider, err := networkprovider.InitNetworkProvider(s.NetworkProvider)
		if err != nil {
			glog.Errorf("Network provider could not be initialized: %v", err)
		}

		if networkProvider != nil {
			networkController := networkcontroller.NewNetworkController(clientset.NewForConfigOrDie(restclient.AddUserAgent(kubeconfig, "network-controller")), networkProvider)
			go networkController.Run(wait.NeverStop)
		} else {
			glog.Errorf("NetController should not be run without a networkprovider.")
		}
	}

	serviceController := servicecontroller.New(cloud, clientset.NewForConfigOrDie(restclient.AddUserAgent(kubeconfig, "service-controller")), s.ClusterName)
	if err := serviceController.Run(s.ServiceSyncPeriod.Duration, s.NodeSyncPeriod.Duration); err != nil {
		glog.Errorf("Failed to start service controller: %v", err)
	}

	if s.AllocateNodeCIDRs {
		if cloud == nil {
			glog.Warning("allocate-node-cidrs is set, but no cloud provider specified. Will not manage routes.")
		} else if routes, ok := cloud.Routes(); !ok {
			glog.Warning("allocate-node-cidrs is set, but cloud provider does not support routes. Will not manage routes.")
		} else {
			routeController := routecontroller.New(routes, clientset.NewForConfigOrDie(restclient.AddUserAgent(kubeconfig, "route-controller")), s.ClusterName, clusterCIDR)
			routeController.Run(s.NodeSyncPeriod.Duration)
		}
	} else {
		glog.Infof("allocate-node-cidrs set to %v, node controller not creating routes", s.AllocateNodeCIDRs)
	}

	resourceQuotaControllerClient := clientset.NewForConfigOrDie(restclient.AddUserAgent(kubeconfig, "resourcequota-controller"))
	resourceQuotaRegistry := quotainstall.NewRegistry(resourceQuotaControllerClient)
	groupKindsToReplenish := []unversioned.GroupKind{
		api.Kind("Pod"),
		api.Kind("Service"),
		api.Kind("ReplicationController"),
		api.Kind("PersistentVolumeClaim"),
		api.Kind("Secret"),
		api.Kind("ConfigMap"),
	}
	resourceQuotaControllerOptions := &resourcequotacontroller.ResourceQuotaControllerOptions{
		KubeClient:                resourceQuotaControllerClient,
		ResyncPeriod:              controller.StaticResyncPeriodFunc(s.ResourceQuotaSyncPeriod.Duration),
		Registry:                  resourceQuotaRegistry,
		ControllerFactory:         resourcequotacontroller.NewReplenishmentControllerFactory(resourceQuotaControllerClient),
		ReplenishmentResyncPeriod: ResyncPeriod(s),
		GroupKindsToReplenish:     groupKindsToReplenish,
	}
	go resourcequotacontroller.NewResourceQuotaController(resourceQuotaControllerOptions).Run(s.ConcurrentResourceQuotaSyncs, wait.NeverStop)

	// If apiserver is not running we should wait for some time and fail only then. This is particularly
	// important when we start apiserver and controller manager at the same time.
	var versionStrings []string
	err = wait.PollImmediate(time.Second, 10*time.Second, func() (bool, error) {
		if versionStrings, err = restclient.ServerAPIVersions(kubeconfig); err == nil {
			return true, nil
		}
		glog.Errorf("Failed to get api versions from server: %v", err)
		return false, nil
	})
	if err != nil {
		glog.Fatalf("Failed to get api versions from server: %v", err)
	}
	versions := &unversioned.APIVersions{Versions: versionStrings}

	resourceMap, err := kubeClient.Discovery().ServerResources()
	if err != nil {
		glog.Fatalf("Failed to get supported resources from server: %v", err)
	}

	// Find the list of namespaced resources via discovery that the namespace controller must manage
	namespaceKubeClient := clientset.NewForConfigOrDie(restclient.AddUserAgent(kubeconfig, "namespace-controller"))
	namespaceClientPool := dynamic.NewClientPool(restclient.AddUserAgent(kubeconfig, "namespace-controller"), dynamic.LegacyAPIPathResolverFunc)
	groupVersionResources, err := namespacecontroller.ServerPreferredNamespacedGroupVersionResources(namespaceKubeClient.Discovery())
	if err != nil {
		glog.Fatalf("Failed to get supported resources from server: %v", err)
	}
	namespaceController := namespacecontroller.NewNamespaceController(namespaceKubeClient, namespaceClientPool, groupVersionResources, s.NamespaceSyncPeriod.Duration, api.FinalizerKubernetes)
	go namespaceController.Run(s.ConcurrentNamespaceSyncs, wait.NeverStop)

	groupVersion := "extensions/v1beta1"
	resources, found := resourceMap[groupVersion]
	// TODO: this needs to be dynamic so users don't have to restart their controller manager if they change the apiserver
	if containsVersion(versions, groupVersion) && found {
		glog.Infof("Starting %s apis", groupVersion)
		if containsResource(resources, "horizontalpodautoscalers") {
			glog.Infof("Starting horizontal pod controller.")
			hpaClient := clientset.NewForConfigOrDie(restclient.AddUserAgent(kubeconfig, "horizontal-pod-autoscaler"))
			metricsClient := metrics.NewHeapsterMetricsClient(
				hpaClient,
				metrics.DefaultHeapsterNamespace,
				metrics.DefaultHeapsterScheme,
				metrics.DefaultHeapsterService,
				metrics.DefaultHeapsterPort,
			)
			go podautoscaler.NewHorizontalController(hpaClient.Core(), hpaClient.Extensions(), hpaClient, metricsClient, s.HorizontalPodAutoscalerSyncPeriod.Duration).
				Run(wait.NeverStop)
		}

		if containsResource(resources, "daemonsets") {
			glog.Infof("Starting daemon set controller")
			go daemon.NewDaemonSetsController(clientset.NewForConfigOrDie(restclient.AddUserAgent(kubeconfig, "daemon-set-controller")), ResyncPeriod(s), s.LookupCacheSizeForDaemonSet).
				Run(s.ConcurrentDaemonSetSyncs, wait.NeverStop)
		}

		if containsResource(resources, "jobs") {
			glog.Infof("Starting job controller")
			go job.NewJobController(clientset.NewForConfigOrDie(restclient.AddUserAgent(kubeconfig, "job-controller")), ResyncPeriod(s)).
				Run(s.ConcurrentJobSyncs, wait.NeverStop)
		}

		if containsResource(resources, "deployments") {
			glog.Infof("Starting deployment controller")
			go deployment.NewDeploymentController(clientset.NewForConfigOrDie(restclient.AddUserAgent(kubeconfig, "deployment-controller")), ResyncPeriod(s)).
				Run(s.ConcurrentDeploymentSyncs, wait.NeverStop)
		}

		if containsResource(resources, "replicasets") {
			glog.Infof("Starting ReplicaSet controller")
			go replicaset.NewReplicaSetController(clientset.NewForConfigOrDie(restclient.AddUserAgent(kubeconfig, "replicaset-controller")), ResyncPeriod(s), replicaset.BurstReplicas, s.LookupCacheSizeForRS).
				Run(s.ConcurrentRSSyncs, wait.NeverStop)
		}
	}

	volumePlugins := ProbeRecyclableVolumePlugins(s.VolumeConfiguration)
	provisioner, err := NewVolumeProvisioner(cloud, s.VolumeConfiguration)
	if err != nil {
		glog.Fatal("A Provisioner could not be created, but one was expected. Provisioning will not work. This functionality is considered an early Alpha version.")
	}

	pvclaimBinder := persistentvolumecontroller.NewPersistentVolumeClaimBinder(clientset.NewForConfigOrDie(restclient.AddUserAgent(kubeconfig, "persistent-volume-binder")), s.PVClaimBinderSyncPeriod.Duration)
	pvclaimBinder.Run()

	pvRecycler, err := persistentvolumecontroller.NewPersistentVolumeRecycler(
		clientset.NewForConfigOrDie(restclient.AddUserAgent(kubeconfig, "persistent-volume-recycler")),
		s.PVClaimBinderSyncPeriod.Duration,
		s.VolumeConfiguration.PersistentVolumeRecyclerConfiguration.MaximumRetry,
		ProbeRecyclableVolumePlugins(s.VolumeConfiguration),
		cloud,
	)
	if err != nil {
		glog.Fatalf("Failed to start persistent volume recycler: %+v", err)
	}
	pvRecycler.Run()

	if provisioner != nil {
		pvController, err := persistentvolumecontroller.NewPersistentVolumeProvisionerController(persistentvolumecontroller.NewControllerClient(clientset.NewForConfigOrDie(restclient.AddUserAgent(kubeconfig, "persistent-volume-provisioner"))), s.PVClaimBinderSyncPeriod.Duration, s.ClusterName, volumePlugins, provisioner, cloud)
		if err != nil {
			glog.Fatalf("Failed to start persistent volume provisioner controller: %+v", err)
		}
		pvController.Run()
	}

	var rootCA []byte

	if s.RootCAFile != "" {
		rootCA, err = ioutil.ReadFile(s.RootCAFile)
		if err != nil {
			return fmt.Errorf("error reading root-ca-file at %s: %v", s.RootCAFile, err)
		}
		if _, err := util.CertsFromPEM(rootCA); err != nil {
			return fmt.Errorf("error parsing root-ca-file at %s: %v", s.RootCAFile, err)
		}
	} else {
		rootCA = kubeconfig.CAData
	}

	if len(s.ServiceAccountKeyFile) > 0 {
		privateKey, err := serviceaccount.ReadPrivateKey(s.ServiceAccountKeyFile)
		if err != nil {
			glog.Errorf("Error reading key for service account token controller: %v", err)
		} else {
			serviceaccountcontroller.NewTokensController(
				clientset.NewForConfigOrDie(restclient.AddUserAgent(kubeconfig, "tokens-controller")),
				serviceaccountcontroller.TokensControllerOptions{
					TokenGenerator: serviceaccount.JWTTokenGenerator(privateKey),
					RootCA:         rootCA,
				},
			).Run()
		}
	}

	serviceaccountcontroller.NewServiceAccountsController(
		clientset.NewForConfigOrDie(restclient.AddUserAgent(kubeconfig, "service-account-controller")),
		serviceaccountcontroller.DefaultServiceAccountsControllerOptions(),
	).Run()

	select {}
}
コード例 #2
0
// Run runs the CMServer.  This should never exit.
func Run(s *options.CMServer) error {
	kubeconfig, err := clientcmd.BuildConfigFromFlags(s.Master, s.Kubeconfig)
	if err != nil {
		return err
	}

	// Override kubeconfig qps/burst settings from flags
	kubeconfig.QPS = s.KubeAPIQPS
	kubeconfig.Burst = s.KubeAPIBurst

	kubeClient, err := client.New(kubeconfig)
	if err != nil {
		glog.Fatalf("Invalid API configuration: %v", err)
	}

	go func() {
		mux := http.NewServeMux()
		healthz.InstallHandler(mux)
		if s.EnableProfiling {
			mux.HandleFunc("/debug/pprof/", pprof.Index)
			mux.HandleFunc("/debug/pprof/profile", pprof.Profile)
			mux.HandleFunc("/debug/pprof/symbol", pprof.Symbol)
		}
		mux.Handle("/metrics", prometheus.Handler())

		server := &http.Server{
			Addr:    net.JoinHostPort(s.Address.String(), strconv.Itoa(s.Port)),
			Handler: mux,
		}
		glog.Fatal(server.ListenAndServe())
	}()

	go endpointcontroller.NewEndpointController(clientForUserAgentOrDie(*kubeconfig, "endpoint-controller"), ResyncPeriod(s)).
		Run(s.ConcurrentEndpointSyncs, util.NeverStop)

	go replicationcontroller.NewReplicationManager(
		clientForUserAgentOrDie(*kubeconfig, "replication-controller"),
		ResyncPeriod(s),
		replicationcontroller.BurstReplicas,
	).Run(s.ConcurrentRCSyncs, util.NeverStop)

	if s.TerminatedPodGCThreshold > 0 {
		go gc.New(clientForUserAgentOrDie(*kubeconfig, "garbage-collector"), ResyncPeriod(s), s.TerminatedPodGCThreshold).
			Run(util.NeverStop)
	}

	cloud, err := cloudprovider.InitCloudProvider(s.CloudProvider, s.CloudConfigFile)
	if err != nil {
		glog.Fatalf("Cloud provider could not be initialized: %v", err)
	}

	ProbeNetworkProviders()
	networkProvider, err := networkprovider.InitNetworkProvider(s.NetworkProvider)
	if err != nil {
		glog.Errorf("Network provider could not be initialized: %v", err)
	}

	if networkProvider != nil {
		networkController := networkcontroller.NewNetworkController(kubeClient, networkProvider)
		go networkController.Run(util.NeverStop)
	} else {
		glog.Errorf("NetController should not be run without a networkprovider.")
	}

	nodeController := nodecontroller.NewNodeController(cloud, clientForUserAgentOrDie(*kubeconfig, "node-controller"),
		s.PodEvictionTimeout, util.NewTokenBucketRateLimiter(s.DeletingPodsQps, s.DeletingPodsBurst),
		util.NewTokenBucketRateLimiter(s.DeletingPodsQps, s.DeletingPodsBurst),
		s.NodeMonitorGracePeriod, s.NodeStartupGracePeriod, s.NodeMonitorPeriod, &s.ClusterCIDR, s.AllocateNodeCIDRs)
	nodeController.Run(s.NodeSyncPeriod)

	serviceController := servicecontroller.New(cloud, clientForUserAgentOrDie(*kubeconfig, "service-controller"), s.ClusterName)
	if err := serviceController.Run(s.ServiceSyncPeriod, s.NodeSyncPeriod); err != nil {
		glog.Errorf("Failed to start service controller: %v", err)
	}

	if s.AllocateNodeCIDRs {
		if cloud == nil {
			glog.Warning("allocate-node-cidrs is set, but no cloud provider specified. Will not manage routes.")
		} else if routes, ok := cloud.Routes(); !ok {
			glog.Warning("allocate-node-cidrs is set, but cloud provider does not support routes. Will not manage routes.")
		} else {
			routeController := routecontroller.New(routes, clientForUserAgentOrDie(*kubeconfig, "route-controller"), s.ClusterName, &s.ClusterCIDR)
			routeController.Run(s.NodeSyncPeriod)
		}
	} else {
		glog.Infof("allocate-node-cidrs set to %v, node controller not creating routes", s.AllocateNodeCIDRs)
	}

	go resourcequotacontroller.NewResourceQuotaController(
		clientForUserAgentOrDie(*kubeconfig, "resourcequota-controller"),
		controller.StaticResyncPeriodFunc(s.ResourceQuotaSyncPeriod)).Run(s.ConcurrentResourceQuotaSyncs, util.NeverStop)

	// If apiserver is not running we should wait for some time and fail only then. This is particularly
	// important when we start apiserver and controller manager at the same time.
	var versionStrings []string
	err = wait.PollImmediate(time.Second, 10*time.Second, func() (bool, error) {
		if versionStrings, err = client.ServerAPIVersions(kubeconfig); err == nil {
			return true, nil
		}
		glog.Errorf("Failed to get api versions from server: %v", err)
		return false, nil
	})
	if err != nil {
		glog.Fatalf("Failed to get api versions from server: %v", err)
	}
	versions := &unversioned.APIVersions{Versions: versionStrings}

	resourceMap, err := kubeClient.Discovery().ServerResources()
	if err != nil {
		glog.Fatalf("Failed to get supported resources from server: %v", err)
	}

	namespacecontroller.NewNamespaceController(clientForUserAgentOrDie(*kubeconfig, "namespace-controller"), versions, s.NamespaceSyncPeriod).Run()

	groupVersion := "extensions/v1beta1"
	resources, found := resourceMap[groupVersion]
	// TODO: this needs to be dynamic so users don't have to restart their controller manager if they change the apiserver
	if containsVersion(versions, groupVersion) && found {
		glog.Infof("Starting %s apis", groupVersion)
		if containsResource(resources, "horizontalpodautoscalers") {
			glog.Infof("Starting horizontal pod controller.")
			hpaClient := clientForUserAgentOrDie(*kubeconfig, "horizontal-pod-autoscaler")
			metricsClient := metrics.NewHeapsterMetricsClient(
				hpaClient,
				metrics.DefaultHeapsterNamespace,
				metrics.DefaultHeapsterScheme,
				metrics.DefaultHeapsterService,
				metrics.DefaultHeapsterPort,
			)
			podautoscaler.NewHorizontalController(hpaClient, hpaClient, hpaClient, metricsClient).
				Run(s.HorizontalPodAutoscalerSyncPeriod)
		}

		if containsResource(resources, "daemonsets") {
			glog.Infof("Starting daemon set controller")
			go daemon.NewDaemonSetsController(clientForUserAgentOrDie(*kubeconfig, "daemon-set-controller"), ResyncPeriod(s)).
				Run(s.ConcurrentDSCSyncs, util.NeverStop)
		}

		if containsResource(resources, "jobs") {
			glog.Infof("Starting job controller")
			go job.NewJobController(clientForUserAgentOrDie(*kubeconfig, "job-controller"), ResyncPeriod(s)).
				Run(s.ConcurrentJobSyncs, util.NeverStop)
		}

		if containsResource(resources, "deployments") {
			glog.Infof("Starting deployment controller")
			go deployment.NewDeploymentController(clientForUserAgentOrDie(*kubeconfig, "deployment-controller"), ResyncPeriod(s)).
				Run(s.ConcurrentDeploymentSyncs, util.NeverStop)
		}
	}

	volumePlugins := ProbeRecyclableVolumePlugins(s.VolumeConfigFlags)
	provisioner, err := NewVolumeProvisioner(cloud, s.VolumeConfigFlags)
	if err != nil {
		glog.Fatal("A Provisioner could not be created, but one was expected. Provisioning will not work. This functionality is considered an early Alpha version.")
	}

	pvclaimBinder := persistentvolumecontroller.NewPersistentVolumeClaimBinder(clientForUserAgentOrDie(*kubeconfig, "persistent-volume-binder"), s.PVClaimBinderSyncPeriod)
	pvclaimBinder.Run()

	pvRecycler, err := persistentvolumecontroller.NewPersistentVolumeRecycler(clientForUserAgentOrDie(*kubeconfig, "persistent-volume-recycler"), s.PVClaimBinderSyncPeriod, ProbeRecyclableVolumePlugins(s.VolumeConfigFlags), cloud)
	if err != nil {
		glog.Fatalf("Failed to start persistent volume recycler: %+v", err)
	}
	pvRecycler.Run()

	if provisioner != nil {
		pvController, err := persistentvolumecontroller.NewPersistentVolumeProvisionerController(persistentvolumecontroller.NewControllerClient(clientForUserAgentOrDie(*kubeconfig, "persistent-volume-provisioner")), s.PVClaimBinderSyncPeriod, volumePlugins, provisioner, cloud)
		if err != nil {
			glog.Fatalf("Failed to start persistent volume provisioner controller: %+v", err)
		}
		pvController.Run()
	}

	var rootCA []byte

	if s.RootCAFile != "" {
		rootCA, err = ioutil.ReadFile(s.RootCAFile)
		if err != nil {
			return fmt.Errorf("error reading root-ca-file at %s: %v", s.RootCAFile, err)
		}
		if _, err := util.CertsFromPEM(rootCA); err != nil {
			return fmt.Errorf("error parsing root-ca-file at %s: %v", s.RootCAFile, err)
		}
	} else {
		rootCA = kubeconfig.CAData
	}

	if len(s.ServiceAccountKeyFile) > 0 {
		privateKey, err := serviceaccount.ReadPrivateKey(s.ServiceAccountKeyFile)
		if err != nil {
			glog.Errorf("Error reading key for service account token controller: %v", err)
		} else {
			serviceaccountcontroller.NewTokensController(
				clientForUserAgentOrDie(*kubeconfig, "tokens-controller"),
				serviceaccountcontroller.TokensControllerOptions{
					TokenGenerator: serviceaccount.JWTTokenGenerator(privateKey),
					RootCA:         rootCA,
				},
			).Run()
		}
	}

	serviceaccountcontroller.NewServiceAccountsController(
		clientForUserAgentOrDie(*kubeconfig, "service-account-controller"),
		serviceaccountcontroller.DefaultServiceAccountsControllerOptions(),
	).Run()

	select {}
}
コード例 #3
0
ファイル: server.go プロジェクト: yashodhank/hypernetes
// UnsecuredKubeletConfig returns a KubeletConfig suitable for being run, or an error if the server setup
// is not valid.  It will not start any background processes, and does not include authentication/authorization
func UnsecuredKubeletConfig(s *options.KubeletServer) (*KubeletConfig, error) {
	hostNetworkSources, err := kubetypes.GetValidatedSources(strings.Split(s.HostNetworkSources, ","))
	if err != nil {
		return nil, err
	}

	hostPIDSources, err := kubetypes.GetValidatedSources(strings.Split(s.HostPIDSources, ","))
	if err != nil {
		return nil, err
	}

	hostIPCSources, err := kubetypes.GetValidatedSources(strings.Split(s.HostIPCSources, ","))
	if err != nil {
		return nil, err
	}

	mounter := mount.New()
	var writer io.Writer = &io.StdWriter{}
	if s.Containerized {
		glog.V(2).Info("Running kubelet in containerized mode (experimental)")
		mounter = mount.NewNsenterMounter()
		writer = &io.NsenterWriter{}
	}

	chmodRunner := chmod.New()
	chownRunner := chown.New()

	tlsOptions, err := InitializeTLS(s)
	if err != nil {
		return nil, err
	}

	var dockerExecHandler dockertools.ExecHandler
	switch s.DockerExecHandlerName {
	case "native":
		dockerExecHandler = &dockertools.NativeExecHandler{}
	case "nsenter":
		dockerExecHandler = &dockertools.NsenterExecHandler{}
	default:
		glog.Warningf("Unknown Docker exec handler %q; defaulting to native", s.DockerExecHandlerName)
		dockerExecHandler = &dockertools.NativeExecHandler{}
	}

	imageGCPolicy := kubelet.ImageGCPolicy{
		HighThresholdPercent: s.ImageGCHighThresholdPercent,
		LowThresholdPercent:  s.ImageGCLowThresholdPercent,
	}

	diskSpacePolicy := kubelet.DiskSpacePolicy{
		DockerFreeDiskMB: s.LowDiskSpaceThresholdMB,
		RootFreeDiskMB:   s.LowDiskSpaceThresholdMB,
	}

	manifestURLHeader := make(http.Header)
	if s.ManifestURLHeader != "" {
		pieces := strings.Split(s.ManifestURLHeader, ":")
		if len(pieces) != 2 {
			return nil, fmt.Errorf("manifest-url-header must have a single ':' key-value separator, got %q", s.ManifestURLHeader)
		}
		manifestURLHeader.Set(pieces[0], pieces[1])
	}

	// network plugins
	networkPluginName := s.NetworkPluginName
	networkPlugins := ProbeNetworkPlugins(s.NetworkPluginDir)

	ProbeNetworkProviders()
	networkProvider, err := networkprovider.InitNetworkProvider(s.NetworkProvider)
	if err != nil {
		glog.Errorf("Network provider could not be initialized: %v", err)
	} else {
		networkPlugins = append(networkPlugins, NewRemoteNetworkPlugin(networkProvider))
		networkPluginName = "NetworkProvider"
	}

	return &KubeletConfig{
		Address:                   s.Address,
		AllowPrivileged:           s.AllowPrivileged,
		Auth:                      nil, // default does not enforce auth[nz]
		CAdvisorInterface:         nil, // launches background processes, not set here
		CgroupRoot:                s.CgroupRoot,
		CinderConfig:              s.CinderConfig,
		Cloud:                     nil, // cloud provider might start background processes
		ClusterDNS:                s.ClusterDNS,
		ClusterDomain:             s.ClusterDomain,
		ConfigFile:                s.Config,
		ConfigureCBR0:             s.ConfigureCBR0,
		ContainerManager:          nil,
		ContainerRuntime:          s.ContainerRuntime,
		CPUCFSQuota:               s.CPUCFSQuota,
		DiskSpacePolicy:           diskSpacePolicy,
		DockerClient:              dockertools.ConnectToDockerOrDie(s.DockerEndpoint),
		DockerDaemonContainer:     s.DockerDaemonContainer,
		DockerExecHandler:         dockerExecHandler,
		EnableDebuggingHandlers:   s.EnableDebuggingHandlers,
		EnableServer:              s.EnableServer,
		EventBurst:                s.EventBurst,
		EventRecordQPS:            s.EventRecordQPS,
		FileCheckFrequency:        s.FileCheckFrequency,
		HostnameOverride:          s.HostnameOverride,
		HostNetworkSources:        hostNetworkSources,
		HostPIDSources:            hostPIDSources,
		HostIPCSources:            hostIPCSources,
		HTTPCheckFrequency:        s.HTTPCheckFrequency,
		ImageGCPolicy:             imageGCPolicy,
		KubeClient:                nil,
		ManifestURL:               s.ManifestURL,
		ManifestURLHeader:         manifestURLHeader,
		MasterServiceNamespace:    s.MasterServiceNamespace,
		MaxContainerCount:         s.MaxContainerCount,
		MaxOpenFiles:              s.MaxOpenFiles,
		MaxPerPodContainerCount:   s.MaxPerPodContainerCount,
		MaxPods:                   s.MaxPods,
		MinimumGCAge:              s.MinimumGCAge,
		Mounter:                   mounter,
		ChownRunner:               chownRunner,
		ChmodRunner:               chmodRunner,
		NetworkPluginName:         networkPluginName,
		NetworkPlugins:            networkPlugins,
		NodeLabels:                s.NodeLabels,
		NodeLabelsFile:            s.NodeLabelsFile,
		NodeStatusUpdateFrequency: s.NodeStatusUpdateFrequency,
		OOMAdjuster:               oom.NewOOMAdjuster(),
		OSInterface:               kubecontainer.RealOS{},
		PodCIDR:                   s.PodCIDR,
		ReconcileCIDR:             s.ReconcileCIDR,
		PodInfraContainerImage:    s.PodInfraContainerImage,
		Port:                           s.Port,
		ReadOnlyPort:                   s.ReadOnlyPort,
		RegisterNode:                   s.RegisterNode,
		RegisterSchedulable:            s.RegisterSchedulable,
		RegistryBurst:                  s.RegistryBurst,
		RegistryPullQPS:                s.RegistryPullQPS,
		ResolverConfig:                 s.ResolverConfig,
		ResourceContainer:              s.ResourceContainer,
		RktPath:                        s.RktPath,
		RktStage1Image:                 s.RktStage1Image,
		RootDirectory:                  s.RootDirectory,
		Runonce:                        s.RunOnce,
		SerializeImagePulls:            s.SerializeImagePulls,
		StandaloneMode:                 (len(s.APIServerList) == 0),
		StreamingConnectionIdleTimeout: s.StreamingConnectionIdleTimeout,
		SyncFrequency:                  s.SyncFrequency,
		SystemContainer:                s.SystemContainer,
		TLSOptions:                     tlsOptions,
		Writer:                         writer,
		VolumePlugins:                  ProbeVolumePlugins(s.VolumePluginDir),
		OutOfDiskTransitionFrequency:   s.OutOfDiskTransitionFrequency,

		ExperimentalFlannelOverlay: s.ExperimentalFlannelOverlay,
		NodeIP: s.NodeIP,
	}, nil
}
コード例 #4
0
func StartControllers(s *options.CMServer, kubeClient *client.Client, kubeconfig *restclient.Config, stop <-chan struct{}) error {
	podInformer := informers.CreateSharedPodIndexInformer(clientset.NewForConfigOrDie(restclient.AddUserAgent(kubeconfig, "pod-informer")), ResyncPeriod(s)())
	nodeInformer := informers.CreateSharedNodeIndexInformer(clientset.NewForConfigOrDie(restclient.AddUserAgent(kubeconfig, "node-informer")), ResyncPeriod(s)())
	pvcInformer := informers.CreateSharedPVCIndexInformer(clientset.NewForConfigOrDie(restclient.AddUserAgent(kubeconfig, "pvc-informer")), ResyncPeriod(s)())
	pvInformer := informers.CreateSharedPVIndexInformer(clientset.NewForConfigOrDie(restclient.AddUserAgent(kubeconfig, "pv-informer")), ResyncPeriod(s)())
	informers := map[reflect.Type]framework.SharedIndexInformer{}
	informers[reflect.TypeOf(&api.Pod{})] = podInformer
	informers[reflect.TypeOf(&api.Node{})] = nodeInformer
	informers[reflect.TypeOf(&api.PersistentVolumeClaim{})] = pvcInformer
	informers[reflect.TypeOf(&api.PersistentVolume{})] = pvInformer

	go endpointcontroller.NewEndpointController(podInformer, clientset.NewForConfigOrDie(restclient.AddUserAgent(kubeconfig, "endpoint-controller"))).
		Run(int(s.ConcurrentEndpointSyncs), wait.NeverStop)
	time.Sleep(wait.Jitter(s.ControllerStartInterval.Duration, ControllerStartJitter))

	go replicationcontroller.NewReplicationManager(
		podInformer,
		clientset.NewForConfigOrDie(restclient.AddUserAgent(kubeconfig, "replication-controller")),
		ResyncPeriod(s),
		replicationcontroller.BurstReplicas,
		int(s.LookupCacheSizeForRC),
	).Run(int(s.ConcurrentRCSyncs), wait.NeverStop)
	time.Sleep(wait.Jitter(s.ControllerStartInterval.Duration, ControllerStartJitter))

	if s.TerminatedPodGCThreshold > 0 {
		go gc.New(clientset.NewForConfigOrDie(restclient.AddUserAgent(kubeconfig, "garbage-collector")), ResyncPeriod(s), int(s.TerminatedPodGCThreshold)).
			Run(wait.NeverStop)
		time.Sleep(wait.Jitter(s.ControllerStartInterval.Duration, ControllerStartJitter))
	}

	cloud, err := cloudprovider.InitCloudProvider(s.CloudProvider, s.CloudConfigFile)
	if err != nil {
		glog.Fatalf("Cloud provider could not be initialized: %v", err)
	}

	_, clusterCIDR, err := net.ParseCIDR(s.ClusterCIDR)
	if err != nil {
		glog.Warningf("Unsuccessful parsing of cluster CIDR %v: %v", s.ClusterCIDR, err)
	}
	_, serviceCIDR, err := net.ParseCIDR(s.ServiceCIDR)
	if err != nil {
		glog.Warningf("Unsuccessful parsing of service CIDR %v: %v", s.ServiceCIDR, err)
	}
	nodeController := nodecontroller.NewNodeController(cloud, clientset.NewForConfigOrDie(restclient.AddUserAgent(kubeconfig, "node-controller")),
		s.PodEvictionTimeout.Duration, flowcontrol.NewTokenBucketRateLimiter(s.DeletingPodsQps, int(s.DeletingPodsBurst)),
		flowcontrol.NewTokenBucketRateLimiter(s.DeletingPodsQps, int(s.DeletingPodsBurst)),
		s.NodeMonitorGracePeriod.Duration, s.NodeStartupGracePeriod.Duration, s.NodeMonitorPeriod.Duration, clusterCIDR, serviceCIDR, int(s.NodeCIDRMaskSize), s.AllocateNodeCIDRs)
	nodeController.Run(s.NodeSyncPeriod.Duration)
	time.Sleep(wait.Jitter(s.ControllerStartInterval.Duration, ControllerStartJitter))

	if len(s.NetworkProvider) > 0 {
		if err := ProbeNetworkProviders(s.NetworkProvider); err != nil {
			glog.Fatalf("Network provider could not be initialized: %v", err)
		}
		networkProvider, err := networkprovider.InitNetworkProvider(s.NetworkProvider)
		if err != nil {
			glog.Errorf("Network provider could not be initialized: %v", err)
		}

		if networkProvider != nil {
			networkController := networkcontroller.NewNetworkController(clientset.NewForConfigOrDie(restclient.AddUserAgent(kubeconfig, "network-controller")), networkProvider)
			go networkController.Run(wait.NeverStop)
		} else {
			glog.Errorf("NetController should not be run without a networkprovider.")
		}
	}

	serviceController := servicecontroller.New(cloud, clientset.NewForConfigOrDie(restclient.AddUserAgent(kubeconfig, "service-controller")), s.ClusterName)
	if err := serviceController.Run(s.ServiceSyncPeriod.Duration, s.NodeSyncPeriod.Duration); err != nil {
		glog.Errorf("Failed to start service controller: %v", err)
	}
	time.Sleep(wait.Jitter(s.ControllerStartInterval.Duration, ControllerStartJitter))

	if s.AllocateNodeCIDRs && s.ConfigureCloudRoutes {
		if cloud == nil {
			glog.Warning("configure-cloud-routes is set, but no cloud provider specified. Will not configure cloud provider routes.")
		} else if routes, ok := cloud.Routes(); !ok {
			glog.Warning("configure-cloud-routes is set, but cloud provider does not support routes. Will not configure cloud provider routes.")
		} else {
			routeController := routecontroller.New(routes, clientset.NewForConfigOrDie(restclient.AddUserAgent(kubeconfig, "route-controller")), s.ClusterName, clusterCIDR)
			routeController.Run(s.NodeSyncPeriod.Duration)
			time.Sleep(wait.Jitter(s.ControllerStartInterval.Duration, ControllerStartJitter))
		}
	} else if s.ConfigureCloudRoutes && !s.AllocateNodeCIDRs {
		glog.Warningf("allocate-node-cidrs set to %v, will not configure cloud provider routes.", s.AllocateNodeCIDRs)
	} else if s.AllocateNodeCIDRs && !s.ConfigureCloudRoutes {
		glog.Infof("configure-cloud-routes is set to %v, will not configure cloud provider routes.", s.ConfigureCloudRoutes)
	}

	resourceQuotaControllerClient := clientset.NewForConfigOrDie(restclient.AddUserAgent(kubeconfig, "resourcequota-controller"))
	resourceQuotaRegistry := quotainstall.NewRegistry(resourceQuotaControllerClient)
	groupKindsToReplenish := []unversioned.GroupKind{
		api.Kind("Pod"),
		api.Kind("Service"),
		api.Kind("ReplicationController"),
		api.Kind("PersistentVolumeClaim"),
		api.Kind("Secret"),
		api.Kind("ConfigMap"),
	}
	resourceQuotaControllerOptions := &resourcequotacontroller.ResourceQuotaControllerOptions{
		KubeClient:                resourceQuotaControllerClient,
		ResyncPeriod:              controller.StaticResyncPeriodFunc(s.ResourceQuotaSyncPeriod.Duration),
		Registry:                  resourceQuotaRegistry,
		ControllerFactory:         resourcequotacontroller.NewReplenishmentControllerFactory(podInformer, resourceQuotaControllerClient),
		ReplenishmentResyncPeriod: ResyncPeriod(s),
		GroupKindsToReplenish:     groupKindsToReplenish,
	}
	go resourcequotacontroller.NewResourceQuotaController(resourceQuotaControllerOptions).Run(int(s.ConcurrentResourceQuotaSyncs), wait.NeverStop)
	time.Sleep(wait.Jitter(s.ControllerStartInterval.Duration, ControllerStartJitter))

	// If apiserver is not running we should wait for some time and fail only then. This is particularly
	// important when we start apiserver and controller manager at the same time.
	var versionStrings []string
	err = wait.PollImmediate(time.Second, 10*time.Second, func() (bool, error) {
		if versionStrings, err = restclient.ServerAPIVersions(kubeconfig); err == nil {
			return true, nil
		}
		glog.Errorf("Failed to get api versions from server: %v", err)
		return false, nil
	})
	if err != nil {
		glog.Fatalf("Failed to get api versions from server: %v", err)
	}
	versions := &unversioned.APIVersions{Versions: versionStrings}

	resourceMap, err := kubeClient.Discovery().ServerResources()
	if err != nil {
		glog.Fatalf("Failed to get supported resources from server: %v", err)
	}

	// Find the list of namespaced resources via discovery that the namespace controller must manage
	namespaceKubeClient := clientset.NewForConfigOrDie(restclient.AddUserAgent(kubeconfig, "namespace-controller"))
	namespaceClientPool := dynamic.NewClientPool(restclient.AddUserAgent(kubeconfig, "namespace-controller"), dynamic.LegacyAPIPathResolverFunc)
	groupVersionResources, err := namespaceKubeClient.Discovery().ServerPreferredNamespacedResources()
	if err != nil {
		glog.Fatalf("Failed to get supported resources from server: %v", err)
	}
	namespaceController := namespacecontroller.NewNamespaceController(namespaceKubeClient, namespaceClientPool, groupVersionResources, s.NamespaceSyncPeriod.Duration, api.FinalizerKubernetes)
	go namespaceController.Run(int(s.ConcurrentNamespaceSyncs), wait.NeverStop)
	time.Sleep(wait.Jitter(s.ControllerStartInterval.Duration, ControllerStartJitter))

	groupVersion := "extensions/v1beta1"
	resources, found := resourceMap[groupVersion]
	// TODO: this needs to be dynamic so users don't have to restart their controller manager if they change the apiserver
	if containsVersion(versions, groupVersion) && found {
		glog.Infof("Starting %s apis", groupVersion)
		if containsResource(resources, "horizontalpodautoscalers") {
			glog.Infof("Starting horizontal pod controller.")
			hpaClient := clientset.NewForConfigOrDie(restclient.AddUserAgent(kubeconfig, "horizontal-pod-autoscaler"))
			metricsClient := metrics.NewHeapsterMetricsClient(
				hpaClient,
				metrics.DefaultHeapsterNamespace,
				metrics.DefaultHeapsterScheme,
				metrics.DefaultHeapsterService,
				metrics.DefaultHeapsterPort,
			)
			go podautoscaler.NewHorizontalController(hpaClient.Core(), hpaClient.Extensions(), hpaClient, metricsClient, s.HorizontalPodAutoscalerSyncPeriod.Duration).
				Run(wait.NeverStop)
			time.Sleep(wait.Jitter(s.ControllerStartInterval.Duration, ControllerStartJitter))
		}

		if containsResource(resources, "daemonsets") {
			glog.Infof("Starting daemon set controller")
			go daemon.NewDaemonSetsController(podInformer, clientset.NewForConfigOrDie(restclient.AddUserAgent(kubeconfig, "daemon-set-controller")), ResyncPeriod(s), int(s.LookupCacheSizeForDaemonSet)).
				Run(int(s.ConcurrentDaemonSetSyncs), wait.NeverStop)
			time.Sleep(wait.Jitter(s.ControllerStartInterval.Duration, ControllerStartJitter))
		}

		if containsResource(resources, "jobs") {
			glog.Infof("Starting job controller")
			go job.NewJobController(podInformer, clientset.NewForConfigOrDie(restclient.AddUserAgent(kubeconfig, "job-controller"))).
				Run(int(s.ConcurrentJobSyncs), wait.NeverStop)
			time.Sleep(wait.Jitter(s.ControllerStartInterval.Duration, ControllerStartJitter))
		}

		if containsResource(resources, "deployments") {
			glog.Infof("Starting deployment controller")
			go deployment.NewDeploymentController(clientset.NewForConfigOrDie(restclient.AddUserAgent(kubeconfig, "deployment-controller")), ResyncPeriod(s)).
				Run(int(s.ConcurrentDeploymentSyncs), wait.NeverStop)
			time.Sleep(wait.Jitter(s.ControllerStartInterval.Duration, ControllerStartJitter))
		}

		if containsResource(resources, "replicasets") {
			glog.Infof("Starting ReplicaSet controller")
			go replicaset.NewReplicaSetController(clientset.NewForConfigOrDie(restclient.AddUserAgent(kubeconfig, "replicaset-controller")), ResyncPeriod(s), replicaset.BurstReplicas, int(s.LookupCacheSizeForRS)).
				Run(int(s.ConcurrentRSSyncs), wait.NeverStop)
			time.Sleep(wait.Jitter(s.ControllerStartInterval.Duration, ControllerStartJitter))
		}
	}

	groupVersion = "apps/v1alpha1"
	resources, found = resourceMap[groupVersion]
	glog.Infof("Attempting to start petset, full resource map %+v", resourceMap)
	if containsVersion(versions, groupVersion) && found {
		glog.Infof("Starting %s apis", groupVersion)
		if containsResource(resources, "petsets") {
			glog.Infof("Starting PetSet controller")
			resyncPeriod := ResyncPeriod(s)()
			go petset.NewPetSetController(
				podInformer,
				// TODO: Switch to using clientset
				kubeClient,
				resyncPeriod,
			).Run(1, wait.NeverStop)
			time.Sleep(wait.Jitter(s.ControllerStartInterval.Duration, ControllerStartJitter))
		}
	}

	provisioner, err := NewVolumeProvisioner(cloud, s.VolumeConfiguration)
	if err != nil {
		glog.Fatal("A Provisioner could not be created, but one was expected. Provisioning will not work. This functionality is considered an early Alpha version.")
	}

	volumeController := persistentvolumecontroller.NewPersistentVolumeController(
		clientset.NewForConfigOrDie(restclient.AddUserAgent(kubeconfig, "persistent-volume-binder")),
		s.PVClaimBinderSyncPeriod.Duration,
		provisioner,
		ProbeRecyclableVolumePlugins(s.VolumeConfiguration),
		cloud,
		s.ClusterName,
		nil, nil, nil,
		s.VolumeConfiguration.EnableDynamicProvisioning,
	)
	volumeController.Run()
	time.Sleep(wait.Jitter(s.ControllerStartInterval.Duration, ControllerStartJitter))

	attachDetachController, attachDetachControllerErr :=
		volume.NewAttachDetachController(
			clientset.NewForConfigOrDie(restclient.AddUserAgent(kubeconfig, "attachdetach-controller")),
			podInformer,
			nodeInformer,
			pvcInformer,
			pvInformer,
			cloud,
			ProbeAttachableVolumePlugins(s.VolumeConfiguration))
	if attachDetachControllerErr != nil {
		glog.Fatalf("Failed to start attach/detach controller: %v", attachDetachControllerErr)
	} else {
		go attachDetachController.Run(wait.NeverStop)
		time.Sleep(wait.Jitter(s.ControllerStartInterval.Duration, ControllerStartJitter))
	}

	var rootCA []byte

	if s.RootCAFile != "" {
		rootCA, err = ioutil.ReadFile(s.RootCAFile)
		if err != nil {
			return fmt.Errorf("error reading root-ca-file at %s: %v", s.RootCAFile, err)
		}
		if _, err := crypto.CertsFromPEM(rootCA); err != nil {
			return fmt.Errorf("error parsing root-ca-file at %s: %v", s.RootCAFile, err)
		}
	} else {
		rootCA = kubeconfig.CAData
	}

	if len(s.ServiceAccountKeyFile) > 0 {
		privateKey, err := serviceaccount.ReadPrivateKey(s.ServiceAccountKeyFile)
		if err != nil {
			glog.Errorf("Error reading key for service account token controller: %v", err)
		} else {
			serviceaccountcontroller.NewTokensController(
				clientset.NewForConfigOrDie(restclient.AddUserAgent(kubeconfig, "tokens-controller")),
				serviceaccountcontroller.TokensControllerOptions{
					TokenGenerator: serviceaccount.JWTTokenGenerator(privateKey),
					RootCA:         rootCA,
				},
			).Run()
			time.Sleep(wait.Jitter(s.ControllerStartInterval.Duration, ControllerStartJitter))
		}
	}

	serviceaccountcontroller.NewServiceAccountsController(
		clientset.NewForConfigOrDie(restclient.AddUserAgent(kubeconfig, "service-account-controller")),
		serviceaccountcontroller.DefaultServiceAccountsControllerOptions(),
	).Run()
	time.Sleep(wait.Jitter(s.ControllerStartInterval.Duration, ControllerStartJitter))

	if s.EnableGarbageCollector {
		gcClientset := clientset.NewForConfigOrDie(restclient.AddUserAgent(kubeconfig, "generic-garbage-collector"))
		groupVersionResources, err := gcClientset.Discovery().ServerPreferredResources()
		if err != nil {
			glog.Fatalf("Failed to get supported resources from server: %v", err)
		}
		clientPool := dynamic.NewClientPool(restclient.AddUserAgent(kubeconfig, "generic-garbage-collector"), dynamic.LegacyAPIPathResolverFunc)
		garbageCollector, err := garbagecollector.NewGarbageCollector(clientPool, groupVersionResources)
		if err != nil {
			glog.Errorf("Failed to start the generic garbage collector")
		} else {
			// TODO: make this a flag of kube-controller-manager
			workers := 5
			go garbageCollector.Run(workers, wait.NeverStop)
		}
	}

	// run the shared informers
	for _, informer := range informers {
		go informer.Run(wait.NeverStop)
	}

	select {}
}
コード例 #5
0
// Run runs the CMServer.  This should never exit.
func (s *CMServer) Run(_ []string) error {
	if s.Kubeconfig == "" && s.Master == "" {
		glog.Warningf("Neither --kubeconfig nor --master was specified.  Using default API client.  This might not work.")
	}

	// This creates a client, first loading any specified kubeconfig
	// file, and then overriding the Master flag, if non-empty.
	kubeconfig, err := clientcmd.NewNonInteractiveDeferredLoadingClientConfig(
		&clientcmd.ClientConfigLoadingRules{ExplicitPath: s.Kubeconfig},
		&clientcmd.ConfigOverrides{ClusterInfo: clientcmdapi.Cluster{Server: s.Master}}).ClientConfig()
	if err != nil {
		return err
	}

	// Override kubeconfig qps/burst settings from flags
	kubeconfig.QPS = s.KubeAPIQPS
	kubeconfig.Burst = s.KubeAPIBurst

	kubeClient, err := client.New(kubeconfig)
	if err != nil {
		glog.Fatalf("Invalid API configuration: %v", err)
	}

	go func() {
		mux := http.NewServeMux()
		healthz.InstallHandler(mux)
		if s.EnableProfiling {
			mux.HandleFunc("/debug/pprof/", pprof.Index)
			mux.HandleFunc("/debug/pprof/profile", pprof.Profile)
			mux.HandleFunc("/debug/pprof/symbol", pprof.Symbol)
		}
		mux.Handle("/metrics", prometheus.Handler())

		server := &http.Server{
			Addr:    net.JoinHostPort(s.Address.String(), strconv.Itoa(s.Port)),
			Handler: mux,
		}
		glog.Fatal(server.ListenAndServe())
	}()

	go endpointcontroller.NewEndpointController(kubeClient, s.ResyncPeriod).
		Run(s.ConcurrentEndpointSyncs, util.NeverStop)

	go replicationcontroller.NewReplicationManager(kubeClient, s.ResyncPeriod, replicationcontroller.BurstReplicas).
		Run(s.ConcurrentRCSyncs, util.NeverStop)

	if s.TerminatedPodGCThreshold > 0 {
		go gc.New(kubeClient, s.ResyncPeriod, s.TerminatedPodGCThreshold).
			Run(util.NeverStop)
	}

	cloud, err := cloudprovider.InitCloudProvider(s.CloudProvider, s.CloudConfigFile)
	if err != nil {
		glog.Fatalf("Cloud provider could not be initialized: %v", err)
	}

	ProbeNetworkProviders()
	networkProvider, err := networkprovider.InitNetworkProvider(s.NetworkProvider)
	if err != nil {
		glog.Errorf("Network provider could not be initialized: %v", err)
	}

	if networkProvider != nil {
		networkController := networkcontroller.NewNetworkController(kubeClient, networkProvider)
		go networkController.Run(util.NeverStop)
	} else {
		glog.Errorf("NetController should not be run without a networkprovider.")
	}

	nodeController := nodecontroller.NewNodeController(cloud, kubeClient,
		s.PodEvictionTimeout, util.NewTokenBucketRateLimiter(s.DeletingPodsQps, s.DeletingPodsBurst),
		util.NewTokenBucketRateLimiter(s.DeletingPodsQps, s.DeletingPodsBurst),
		s.NodeMonitorGracePeriod, s.NodeStartupGracePeriod, s.NodeMonitorPeriod, &s.ClusterCIDR, s.AllocateNodeCIDRs)
	nodeController.Run(s.NodeSyncPeriod)

	serviceController := servicecontroller.New(cloud, kubeClient, s.ClusterName)
	if err := serviceController.Run(s.ServiceSyncPeriod, s.NodeSyncPeriod); err != nil {
		glog.Errorf("Failed to start service controller: %v", err)
	}

	if s.AllocateNodeCIDRs {
		if cloud == nil {
			glog.Warning("allocate-node-cidrs is set, but no cloud provider specified. Will not manage routes.")
		} else if routes, ok := cloud.Routes(); !ok {
			glog.Warning("allocate-node-cidrs is set, but cloud provider does not support routes. Will not manage routes.")
		} else {
			routeController := routecontroller.New(routes, kubeClient, s.ClusterName, &s.ClusterCIDR)
			routeController.Run(s.NodeSyncPeriod)
		}
	}

	resourcequotacontroller.NewResourceQuotaController(kubeClient).Run(s.ResourceQuotaSyncPeriod)

	// If apiserver is not running we should wait for some time and fail only then. This is particularly
	// important when we start apiserver and controller manager at the same time.
	var versionStrings []string
	err = wait.PollImmediate(time.Second, 10*time.Second, func() (bool, error) {
		versionStrings, err = client.ServerAPIVersions(kubeconfig)
		return err == nil, err
	})
	if err != nil {
		glog.Fatalf("Failed to get api versions from server: %v", err)
	}
	versions := &unversioned.APIVersions{Versions: versionStrings}

	resourceMap, err := kubeClient.Discovery().ServerResources()
	if err != nil {
		glog.Fatalf("Failed to get supported resources from server: %v", err)
	}

	namespacecontroller.NewNamespaceController(kubeClient, versions, s.NamespaceSyncPeriod).Run()
	tenantcontroller.NewTenantController(kubeClient, versions, s.TenantSyncPeriod).Run()

	groupVersion := "extensions/v1beta1"
	resources, found := resourceMap[groupVersion]
	// TODO: this needs to be dynamic so users don't have to restart their controller manager if they change the apiserver
	if containsVersion(versions, groupVersion) && found {
		glog.Infof("Starting %s apis", groupVersion)
		if containsResource(resources, "horizontalpodautoscalers") {
			glog.Infof("Starting horizontal pod controller.")
			metricsClient := metrics.NewHeapsterMetricsClient(kubeClient, metrics.DefaultHeapsterNamespace, metrics.DefaultHeapsterService)
			podautoscaler.NewHorizontalController(kubeClient, metricsClient).
				Run(s.HorizontalPodAutoscalerSyncPeriod)
		}

		if containsResource(resources, "daemonsets") {
			glog.Infof("Starting daemon set controller")
			go daemon.NewDaemonSetsController(kubeClient, s.ResyncPeriod).
				Run(s.ConcurrentDSCSyncs, util.NeverStop)
		}

		if containsResource(resources, "jobs") {
			glog.Infof("Starting job controller")
			go job.NewJobController(kubeClient, s.ResyncPeriod).
				Run(s.ConcurrentJobSyncs, util.NeverStop)
		}

		if containsResource(resources, "deployments") {
			glog.Infof("Starting deployment controller")
			deployment.New(kubeClient).
				Run(s.DeploymentControllerSyncPeriod)
		}
	}

	pvclaimBinder := persistentvolumecontroller.NewPersistentVolumeClaimBinder(kubeClient, s.PVClaimBinderSyncPeriod)
	pvclaimBinder.Run()

	pvRecycler, err := persistentvolumecontroller.NewPersistentVolumeRecycler(kubeClient, s.PVClaimBinderSyncPeriod, ProbeRecyclableVolumePlugins(s.VolumeConfigFlags))
	if err != nil {
		glog.Fatalf("Failed to start persistent volume recycler: %+v", err)
	}
	pvRecycler.Run()

	var rootCA []byte

	if s.RootCAFile != "" {
		rootCA, err = ioutil.ReadFile(s.RootCAFile)
		if err != nil {
			return fmt.Errorf("error reading root-ca-file at %s: %v", s.RootCAFile, err)
		}
		if _, err := util.CertsFromPEM(rootCA); err != nil {
			return fmt.Errorf("error parsing root-ca-file at %s: %v", s.RootCAFile, err)
		}
	} else {
		rootCA = kubeconfig.CAData
	}

	if len(s.ServiceAccountKeyFile) > 0 {
		privateKey, err := serviceaccount.ReadPrivateKey(s.ServiceAccountKeyFile)
		if err != nil {
			glog.Errorf("Error reading key for service account token controller: %v", err)
		} else {
			serviceaccount.NewTokensController(
				kubeClient,
				serviceaccount.TokensControllerOptions{
					TokenGenerator: serviceaccount.JWTTokenGenerator(privateKey),
					RootCA:         rootCA,
				},
			).Run()
		}
	}

	serviceaccount.NewServiceAccountsController(
		kubeClient,
		serviceaccount.DefaultServiceAccountsControllerOptions(),
	).Run()

	select {}
}