Golang configz.New函数代码示例

func startHTTP(s *options.SchedulerServer) {
	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)
		if s.EnableContentionProfiling {
			goruntime.SetBlockProfileRate(1)
		}
	}
	if c, err := configz.New("componentconfig"); err == nil {
		c.Set(s.KubeSchedulerConfiguration)
	} else {
		glog.Errorf("unable to register configz: %s", err)
	}
	configz.InstallHandler(mux)
	mux.Handle("/metrics", prometheus.Handler())

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

func initConfigz(kc *componentconfig.KubeletConfiguration) (*configz.Config, error) {
	cz, err := configz.New("componentconfig")
	if err == nil {
		setConfigz(cz, kc)
	} else {
		glog.Errorf("unable to register configz: %s", err)
	}
	return cz, err
}

// Run runs the CMServer.  This should never exit.
func Run(s *options.CMServer) error {
	glog.Infof("%+v", version.Get())
	if c, err := configz.New("componentconfig"); err == nil {
		c.Set(s.ControllerManagerConfiguration)
	} else {
		glog.Errorf("unable to register configz: %s", err)
	}
	// Create the config to talk to federation-apiserver.
	kubeconfigGetter := util.KubeconfigGetterForSecret(KubeconfigSecretName)
	restClientCfg, err := clientcmd.BuildConfigFromKubeconfigGetter(s.Master, kubeconfigGetter)
	if err != nil || restClientCfg == nil {
		// Retry with the deprecated name in 1.4.
		// TODO(madhusudancs): Remove this in 1.5.
		var depErr error
		kubeconfigGetter := util.KubeconfigGetterForSecret(DeprecatedKubeconfigSecretName)
		restClientCfg, depErr = clientcmd.BuildConfigFromKubeconfigGetter(s.Master, kubeconfigGetter)
		if depErr != nil {
			return fmt.Errorf("failed to find the secret containing Federation API server kubeconfig, tried the secret name %s and the deprecated name %s: %v, %v", KubeconfigSecretName, DeprecatedKubeconfigSecretName, err, depErr)
		}
	}

	// Override restClientCfg qps/burst settings from flags
	restClientCfg.QPS = s.APIServerQPS
	restClientCfg.Burst = s.APIServerBurst

	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, strconv.Itoa(s.Port)),
			Handler: mux,
		}
		glog.Fatal(server.ListenAndServe())
	}()

	run := func() {
		err := StartControllers(s, restClientCfg)
		glog.Fatalf("error running controllers: %v", err)
		panic("unreachable")
	}
	run()
	panic("unreachable")
}

// Run runs the CMServer.  This should never exit.
func Run(s *options.CMServer) error {
	if c, err := configz.New("componentconfig"); err == nil {
		c.Set(s.ControllerManagerConfiguration)
	} else {
		glog.Errorf("unable to register configz: %s", err)
	}
	// Create the config to talk to federation-apiserver.
	kubeconfigGetter := clustercontroller.KubeconfigGetterForSecret(FederationAPIServerSecretName)
	restClientCfg, err := clientcmd.BuildConfigFromKubeconfigGetter(s.Master, kubeconfigGetter)
	if err != nil {
		return err
	}

	// Override restClientCfg qps/burst settings from flags
	restClientCfg.QPS = s.APIServerQPS
	restClientCfg.Burst = s.APIServerBurst

	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, strconv.Itoa(s.Port)),
			Handler: mux,
		}
		glog.Fatal(server.ListenAndServe())
	}()

	run := func() {
		err := StartControllers(s, restClientCfg)
		glog.Fatalf("error running controllers: %v", err)
		panic("unreachable")
	}
	run()
	panic("unreachable")
}

// Run runs the CMServer.  This should never exit.
func Run(s *options.CMServer) error {
	if c, err := configz.New("componentconfig"); err == nil {
		c.Set(s.KubeControllerManagerConfiguration)
	} else {
		glog.Errorf("unable to register configz: %s", err)
	}
	kubeconfig, err := clientcmd.BuildConfigFromFlags(s.Master, s.Kubeconfig)
	if err != nil {
		return err
	}

	kubeconfig.ContentConfig.ContentType = s.ContentType
	// Override kubeconfig qps/burst settings from flags
	kubeconfig.QPS = s.KubeAPIQPS
	kubeconfig.Burst = int(s.KubeAPIBurst)
	kubeClient, err := clientset.NewForConfig(restclient.AddUserAgent(kubeconfig, "controller-manager"))
	if err != nil {
		glog.Fatalf("Invalid API configuration: %v", err)
	}
	leaderElectionClient := clientset.NewForConfigOrDie(restclient.AddUserAgent(kubeconfig, "leader-election"))

	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)
		}
		configz.InstallHandler(mux)
		mux.Handle("/metrics", prometheus.Handler())

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

	eventBroadcaster := record.NewBroadcaster()
	eventBroadcaster.StartLogging(glog.Infof)
	eventBroadcaster.StartRecordingToSink(&unversionedcore.EventSinkImpl{Interface: kubeClient.Core().Events("")})
	recorder := eventBroadcaster.NewRecorder(api.EventSource{Component: "controller-manager"})

	run := func(stop <-chan struct{}) {
		rootClientBuilder := controller.SimpleControllerClientBuilder{
			ClientConfig: kubeconfig,
		}
		var clientBuilder controller.ControllerClientBuilder
		if len(s.ServiceAccountKeyFile) > 0 {
			clientBuilder = controller.SAControllerClientBuilder{
				ClientConfig: restclient.AnonymousClientConfig(kubeconfig),
				CoreClient:   kubeClient.Core(),
				Namespace:    "kube-system",
			}
		} else {
			clientBuilder = rootClientBuilder
		}

		err := StartControllers(s, kubeconfig, rootClientBuilder, clientBuilder, stop, recorder)
		glog.Fatalf("error running controllers: %v", err)
		panic("unreachable")
	}

	if !s.LeaderElection.LeaderElect {
		run(nil)
		panic("unreachable")
	}

	id, err := os.Hostname()
	if err != nil {
		return err
	}

	// TODO: enable other lock types
	rl := resourcelock.EndpointsLock{
		EndpointsMeta: api.ObjectMeta{
			Namespace: "kube-system",
			Name:      "kube-controller-manager",
		},
		Client: leaderElectionClient,
		LockConfig: resourcelock.ResourceLockConfig{
			Identity:      id,
			EventRecorder: recorder,
		},
	}

	leaderelection.RunOrDie(leaderelection.LeaderElectionConfig{
		Lock:          &rl,
		LeaseDuration: s.LeaderElection.LeaseDuration.Duration,
		RenewDeadline: s.LeaderElection.RenewDeadline.Duration,
		RetryPeriod:   s.LeaderElection.RetryPeriod.Duration,
		Callbacks: leaderelection.LeaderCallbacks{
			OnStartedLeading: run,
			OnStoppedLeading: func() {
				glog.Fatalf("leaderelection lost")
			},
		},
	})
//.........这里部分代码省略.........

// NewProxyServerDefault creates a new ProxyServer object with default parameters.
func NewProxyServerDefault(config *options.ProxyServerConfig) (*ProxyServer, error) {
	if c, err := configz.New("componentconfig"); err == nil {
		c.Set(config.KubeProxyConfiguration)
	} else {
		glog.Errorf("unable to register configz: %s", err)
	}
	protocol := utiliptables.ProtocolIpv4
	if net.ParseIP(config.BindAddress).To4() == nil {
		protocol = utiliptables.ProtocolIpv6
	}

	// Create a iptables utils.
	execer := exec.New()
	dbus := utildbus.New()
	iptInterface := utiliptables.New(execer, dbus, protocol)

	// We omit creation of pretty much everything if we run in cleanup mode
	if config.CleanupAndExit {
		return &ProxyServer{
			Config:       config,
			IptInterface: iptInterface,
		}, nil
	}

	// TODO(vmarmol): Use container config for this.
	var oomAdjuster *oom.OOMAdjuster
	if config.OOMScoreAdj != nil {
		oomAdjuster = oom.NewOOMAdjuster()
		if err := oomAdjuster.ApplyOOMScoreAdj(0, int(*config.OOMScoreAdj)); err != nil {
			glog.V(2).Info(err)
		}
	}

	if config.ResourceContainer != "" {
		// Run in its own container.
		if err := resourcecontainer.RunInResourceContainer(config.ResourceContainer); err != nil {
			glog.Warningf("Failed to start in resource-only container %q: %v", config.ResourceContainer, err)
		} else {
			glog.V(2).Infof("Running in resource-only container %q", config.ResourceContainer)
		}
	}

	// Create a Kube Client
	// define api config source
	if config.Kubeconfig == "" && config.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: config.Kubeconfig},
		&clientcmd.ConfigOverrides{ClusterInfo: clientcmdapi.Cluster{Server: config.Master}}).ClientConfig()
	if err != nil {
		return nil, err
	}

	kubeconfig.ContentType = config.ContentType
	// Override kubeconfig qps/burst settings from flags
	kubeconfig.QPS = config.KubeAPIQPS
	kubeconfig.Burst = int(config.KubeAPIBurst)

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

	// Create event recorder
	hostname := nodeutil.GetHostname(config.HostnameOverride)
	eventBroadcaster := record.NewBroadcaster()
	recorder := eventBroadcaster.NewRecorder(api.EventSource{Component: "kube-proxy", Host: hostname})

	var proxier proxy.ProxyProvider
	var endpointsHandler proxyconfig.EndpointsConfigHandler

	proxyMode := getProxyMode(string(config.Mode), client.Core().Nodes(), hostname, iptInterface, iptables.LinuxKernelCompatTester{})
	if proxyMode == proxyModeIPTables {
		glog.V(0).Info("Using iptables Proxier.")
		if config.IPTablesMasqueradeBit == nil {
			// IPTablesMasqueradeBit must be specified or defaulted.
			return nil, fmt.Errorf("Unable to read IPTablesMasqueradeBit from config")
		}
		proxierIPTables, err := iptables.NewProxier(iptInterface, utilsysctl.New(), execer, config.IPTablesSyncPeriod.Duration, config.MasqueradeAll, int(*config.IPTablesMasqueradeBit), config.ClusterCIDR, hostname, getNodeIP(client, hostname))
		if err != nil {
			glog.Fatalf("Unable to create proxier: %v", err)
		}
		proxier = proxierIPTables
		endpointsHandler = proxierIPTables
		// No turning back. Remove artifacts that might still exist from the userspace Proxier.
		glog.V(0).Info("Tearing down userspace rules.")
		userspace.CleanupLeftovers(iptInterface)
	} else {
		glog.V(0).Info("Using userspace Proxier.")
		// This is a proxy.LoadBalancer which NewProxier needs but has methods we don't need for
		// our config.EndpointsConfigHandler.
		loadBalancer := userspace.NewLoadBalancerRR()
		// set EndpointsConfigHandler to our loadBalancer
		endpointsHandler = loadBalancer

		proxierUserspace, err := userspace.NewProxier(
//.........这里部分代码省略.........

// Run runs the specified SchedulerServer.  This should never exit.
func Run(s *options.SchedulerServer) error {
	if c, err := configz.New("componentconfig"); err == nil {
		c.Set(s.KubeSchedulerConfiguration)
	} else {
		glog.Errorf("unable to register configz: %s", err)
	}
	kubeconfig, err := clientcmd.BuildConfigFromFlags(s.Master, s.Kubeconfig)
	if err != nil {
		return err
	}

	kubeconfig.ContentType = s.ContentType
	// Override kubeconfig qps/burst settings from flags
	kubeconfig.QPS = s.KubeAPIQPS
	kubeconfig.Burst = int(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)
		}
		configz.InstallHandler(mux)
		mux.Handle("/metrics", prometheus.Handler())

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

	configFactory := factory.NewConfigFactory(kubeClient, s.SchedulerName)
	config, err := createConfig(s, configFactory)

	if err != nil {
		glog.Fatalf("Failed to create scheduler configuration: %v", err)
	}

	eventBroadcaster := record.NewBroadcaster()
	config.Recorder = eventBroadcaster.NewRecorder(api.EventSource{Component: s.SchedulerName})
	eventBroadcaster.StartLogging(glog.Infof)
	eventBroadcaster.StartRecordingToSink(kubeClient.Events(""))

	sched := scheduler.New(config)

	run := func(_ <-chan struct{}) {
		sched.Run()
		select {}
	}

	if !s.LeaderElection.LeaderElect {
		run(nil)
		glog.Fatal("this statement is unreachable")
		panic("unreachable")
	}

	id, err := os.Hostname()
	if err != nil {
		return err
	}

	leaderelection.RunOrDie(leaderelection.LeaderElectionConfig{
		EndpointsMeta: api.ObjectMeta{
			Namespace: "kube-system",
			Name:      "kube-scheduler",
		},
		Client:        kubeClient,
		Identity:      id,
		EventRecorder: config.Recorder,
		LeaseDuration: s.LeaderElection.LeaseDuration.Duration,
		RenewDeadline: s.LeaderElection.RenewDeadline.Duration,
		RetryPeriod:   s.LeaderElection.RetryPeriod.Duration,
		Callbacks: leaderelection.LeaderCallbacks{
			OnStartedLeading: run,
			OnStoppedLeading: func() {
				glog.Fatalf("lost master")
			},
		},
	})

	glog.Fatal("this statement is unreachable")
	panic("unreachable")
}

func run(s *options.KubeletServer, kcfg *KubeletConfig) (err error) {
	if s.ExitOnLockContention && s.LockFilePath == "" {
		return errors.New("cannot exit on lock file contention: no lock file specified")
	}

	done := make(chan struct{})
	if s.LockFilePath != "" {
		glog.Infof("acquiring lock on %q", s.LockFilePath)
		if err := flock.Acquire(s.LockFilePath); err != nil {
			return fmt.Errorf("unable to acquire file lock on %q: %v", s.LockFilePath, err)
		}
		if s.ExitOnLockContention {
			glog.Infof("watching for inotify events for: %v", s.LockFilePath)
			if err := watchForLockfileContention(s.LockFilePath, done); err != nil {
				return err
			}
		}
	}
	if c, err := configz.New("componentconfig"); err == nil {
		c.Set(s.KubeletConfiguration)
	} else {
		glog.Errorf("unable to register configz: %s", err)
	}
	if kcfg == nil {
		cfg, err := UnsecuredKubeletConfig(s)
		if err != nil {
			return err
		}
		kcfg = cfg

		clientConfig, err := CreateAPIServerClientConfig(s)
		if err == nil {
			kcfg.KubeClient, err = clientset.NewForConfig(clientConfig)

			// make a separate client for events
			eventClientConfig := *clientConfig
			eventClientConfig.QPS = float32(s.EventRecordQPS)
			eventClientConfig.Burst = int(s.EventBurst)
			kcfg.EventClient, err = clientset.NewForConfig(&eventClientConfig)
		}
		if err != nil && len(s.APIServerList) > 0 {
			glog.Warningf("No API client: %v", err)
		}

		if s.CloudProvider == kubeExternal.AutoDetectCloudProvider {
			kcfg.AutoDetectCloudProvider = true
		} else {
			cloud, err := cloudprovider.InitCloudProvider(s.CloudProvider, s.CloudConfigFile)
			if err != nil {
				return err
			}
			if cloud == nil {
				glog.V(2).Infof("No cloud provider specified: %q from the config file: %q\n", s.CloudProvider, s.CloudConfigFile)
			} else {
				glog.V(2).Infof("Successfully initialized cloud provider: %q from the config file: %q\n", s.CloudProvider, s.CloudConfigFile)
				kcfg.Cloud = cloud
			}
		}
	}

	if kcfg.CAdvisorInterface == nil {
		kcfg.CAdvisorInterface, err = cadvisor.New(uint(s.CAdvisorPort), kcfg.ContainerRuntime)
		if err != nil {
			return err
		}
	}

	if kcfg.ContainerManager == nil {
		if kcfg.SystemCgroups != "" && kcfg.CgroupRoot == "" {
			return fmt.Errorf("invalid configuration: system container was specified and cgroup root was not specified")
		}
		kcfg.ContainerManager, err = cm.NewContainerManager(kcfg.Mounter, kcfg.CAdvisorInterface, cm.NodeConfig{
			RuntimeCgroupsName: kcfg.RuntimeCgroups,
			SystemCgroupsName:  kcfg.SystemCgroups,
			KubeletCgroupsName: kcfg.KubeletCgroups,
			ContainerRuntime:   kcfg.ContainerRuntime,
			CgroupsPerQOS:      kcfg.CgroupsPerQOS,
			CgroupRoot:         kcfg.CgroupRoot,
		})
		if err != nil {
			return err
		}
	}

	runtime.ReallyCrash = s.ReallyCrashForTesting
	rand.Seed(time.Now().UTC().UnixNano())

	// TODO(vmarmol): Do this through container config.
	oomAdjuster := kcfg.OOMAdjuster
	if err := oomAdjuster.ApplyOOMScoreAdj(0, int(s.OOMScoreAdj)); err != nil {
		glog.Warning(err)
	}

	if err := RunKubelet(kcfg); err != nil {
		return err
	}

	if s.HealthzPort > 0 {
		healthz.DefaultHealthz()
		go wait.Until(func() {
//.........这里部分代码省略.........

// Run runs the CMServer.  This should never exit.
func Run(s *options.CMServer) error {
	if c, err := configz.New("componentconfig"); err == nil {
		c.Set(s.KubeControllerManagerConfiguration)
	} else {
		glog.Errorf("unable to register configz: %s", err)
	}
	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, strconv.Itoa(s.Port)),
			Handler: mux,
		}
		glog.Fatal(server.ListenAndServe())
	}()

	run := func(stop <-chan struct{}) {
		err := StartControllers(s, kubeClient, kubeconfig, stop)
		glog.Fatalf("error running controllers: %v", err)
		panic("unreachable")
	}

	if !s.LeaderElection.LeaderElect {
		run(nil)
		panic("unreachable")
	}

	eventBroadcaster := record.NewBroadcaster()
	eventBroadcaster.StartLogging(glog.Infof)
	eventBroadcaster.StartRecordingToSink(kubeClient.Events(""))
	recorder := eventBroadcaster.NewRecorder(api.EventSource{Component: "controller-manager"})

	id, err := os.Hostname()
	if err != nil {
		return err
	}

	leaderelection.RunOrDie(leaderelection.LeaderElectionConfig{
		EndpointsMeta: api.ObjectMeta{
			Namespace: "kube-system",
			Name:      "kube-controller-manager",
		},
		Client:        kubeClient,
		Identity:      id,
		EventRecorder: recorder,
		LeaseDuration: s.LeaderElection.LeaseDuration.Duration,
		RenewDeadline: s.LeaderElection.RenewDeadline.Duration,
		RetryPeriod:   s.LeaderElection.RetryPeriod.Duration,
		Callbacks: leaderelection.LeaderCallbacks{
			OnStartedLeading: run,
			OnStoppedLeading: func() {
				glog.Fatalf("leaderelection lost")
			},
		},
	})
	panic("unreachable")
}

// Run runs the CMServer.  This should never exit.
func Run(s *options.CMServer) error {
	glog.Infof("%+v", version.Get())
	if c, err := configz.New("componentconfig"); err == nil {
		c.Set(s.ControllerManagerConfiguration)
	} else {
		glog.Errorf("unable to register configz: %s", err)
	}

	// If s.Kubeconfig flag is empty, try with the deprecated name in 1.5.
	// TODO(madhusudancs): Remove this in 1.6.
	var restClientCfg *restclient.Config
	var err error
	if len(s.Kubeconfig) <= 0 {
		restClientCfg, err = restClientConfigFromSecret(s.Master)
		if err != nil {
			return err
		}
	} else {
		// Create the config to talk to federation-apiserver.
		restClientCfg, err = clientcmd.BuildConfigFromFlags(s.Master, s.Kubeconfig)
		if err != nil || restClientCfg == nil {
			// Retry with the deprecated name in 1.5.
			// TODO(madhusudancs): Remove this in 1.6.
			glog.V(2).Infof("Couldn't build the rest client config from flags: %v", err)
			glog.V(2).Infof("Trying with deprecated secret: %s", DeprecatedKubeconfigSecretName)
			restClientCfg, err = restClientConfigFromSecret(s.Master)
			if err != nil {
				return err
			}
		}
	}

	// Override restClientCfg qps/burst settings from flags
	restClientCfg.QPS = s.APIServerQPS
	restClientCfg.Burst = s.APIServerBurst

	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, strconv.Itoa(s.Port)),
			Handler: mux,
		}
		glog.Fatal(server.ListenAndServe())
	}()

	run := func() {
		err := StartControllers(s, restClientCfg)
		glog.Fatalf("error running controllers: %v", err)
		panic("unreachable")
	}
	run()
	panic("unreachable")
}

func run(s *options.KubeletServer, kcfg *KubeletConfig) (err error) {
	if s.LockFilePath != "" {
		glog.Infof("aquiring lock on %q", s.LockFilePath)
		if err := flock.Acquire(s.LockFilePath); err != nil {
			return fmt.Errorf("unable to aquire file lock on %q: %v", s.LockFilePath, err)
		}
	}
	if c, err := configz.New("componentconfig"); err == nil {
		c.Set(s.KubeletConfiguration)
	} else {
		glog.Errorf("unable to register configz: %s", err)
	}
	if kcfg == nil {
		cfg, err := UnsecuredKubeletConfig(s)
		if err != nil {
			return err
		}
		kcfg = cfg

		clientConfig, err := CreateAPIServerClientConfig(s)
		if err == nil {
			kcfg.KubeClient, err = clientset.NewForConfig(clientConfig)

			// make a separate client for events
			eventClientConfig := *clientConfig
			eventClientConfig.QPS = s.EventRecordQPS
			eventClientConfig.Burst = s.EventBurst
			kcfg.EventClient, err = clientset.NewForConfig(&eventClientConfig)
		}
		if err != nil && len(s.APIServerList) > 0 {
			glog.Warningf("No API client: %v", err)
		}

		cloud, err := cloudprovider.InitCloudProvider(s.CloudProvider, s.CloudConfigFile)
		if err != nil {
			return err
		}
		glog.V(2).Infof("Successfully initialized cloud provider: %q from the config file: %q\n", s.CloudProvider, s.CloudConfigFile)
		kcfg.Cloud = cloud
	}

	if kcfg.CAdvisorInterface == nil {
		kcfg.CAdvisorInterface, err = cadvisor.New(s.CAdvisorPort)
		if err != nil {
			return err
		}
	}

	if kcfg.ContainerManager == nil {
		if kcfg.SystemCgroups != "" && kcfg.CgroupRoot == "" {
			return fmt.Errorf("invalid configuration: system container was specified and cgroup root was not specified")
		}

		kcfg.ContainerManager, err = cm.NewContainerManager(kcfg.Mounter, kcfg.CAdvisorInterface, cm.NodeConfig{
			RuntimeCgroupsName: kcfg.RuntimeCgroups,
			SystemCgroupsName:  kcfg.SystemCgroups,
			KubeletCgroupsName: kcfg.KubeletCgroups,
			ContainerRuntime:   kcfg.ContainerRuntime,
		})
		if err != nil {
			return err
		}
	}

	runtime.ReallyCrash = s.ReallyCrashForTesting
	rand.Seed(time.Now().UTC().UnixNano())

	credentialprovider.SetPreferredDockercfgPath(s.RootDirectory)

	glog.V(2).Infof("Using root directory: %v", s.RootDirectory)

	// TODO(vmarmol): Do this through container config.
	oomAdjuster := kcfg.OOMAdjuster
	if err := oomAdjuster.ApplyOOMScoreAdj(0, s.OOMScoreAdj); err != nil {
		glog.Warning(err)
	}

	if err := RunKubelet(kcfg); err != nil {
		return err
	}

	if s.HealthzPort > 0 {
		healthz.DefaultHealthz()
		go wait.Until(func() {
			err := http.ListenAndServe(net.JoinHostPort(s.HealthzBindAddress, strconv.Itoa(s.HealthzPort)), nil)
			if err != nil {
				glog.Errorf("Starting health server failed: %v", err)
			}
		}, 5*time.Second, wait.NeverStop)
	}

	if s.RunOnce {
		return nil
	}

	// run forever
	select {}
}

// Run runs the specified SchedulerServer.  This should never exit.
func Run(s *options.SchedulerServer) error {
	if c, err := configz.New("componentconfig"); err == nil {
		c.Set(s.KubeSchedulerConfiguration)
	} else {
		glog.Errorf("unable to register configz: %s", err)
	}
	kubeconfig, err := clientcmd.BuildConfigFromFlags(s.Master, s.Kubeconfig)
	if err != nil {
		glog.Errorf("unable to build config from flags: %v", err)
		return err
	}

	kubeconfig.ContentType = s.ContentType
	// Override kubeconfig qps/burst settings from flags
	kubeconfig.QPS = s.KubeAPIQPS
	kubeconfig.Burst = int(s.KubeAPIBurst)

	if err != nil {
		glog.Fatalf("Invalid API configuration: %v", err)
	}
	leaderElectionClient, err := clientset.NewForConfig(restclient.AddUserAgent(kubeconfig, "leader-election"))
	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)
			if s.EnableContentionProfiling {
				goruntime.SetBlockProfileRate(1)
			}
		}
		configz.InstallHandler(mux)
		mux.Handle("/metrics", prometheus.Handler())

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

	configFactory := factory.NewConfigFactory(leaderElectionClient, s.SchedulerName, s.HardPodAffinitySymmetricWeight, s.FailureDomains)
	config, err := createConfig(s, configFactory)

	if err != nil {
		glog.Fatalf("Failed to create scheduler configuration: %v", err)
	}

	eventBroadcaster := record.NewBroadcaster()
	config.Recorder = eventBroadcaster.NewRecorder(v1.EventSource{Component: s.SchedulerName})
	eventBroadcaster.StartLogging(glog.Infof)
	eventBroadcaster.StartRecordingToSink(&v1core.EventSinkImpl{Interface: leaderElectionClient.Core().Events("")})

	sched := scheduler.New(config)

	run := func(_ <-chan struct{}) {
		sched.Run()
		select {}
	}

	if !s.LeaderElection.LeaderElect {
		run(nil)
		glog.Fatal("this statement is unreachable")
		panic("unreachable")
	}

	id, err := os.Hostname()
	if err != nil {
		glog.Errorf("unable to get hostname: %v", err)
		return err
	}

	// TODO: enable other lock types
	rl := resourcelock.EndpointsLock{
		EndpointsMeta: v1.ObjectMeta{
			Namespace: "kube-system",
			Name:      "kube-scheduler",
		},
		Client: leaderElectionClient,
		LockConfig: resourcelock.ResourceLockConfig{
			Identity:      id,
			EventRecorder: config.Recorder,
		},
	}

	leaderelection.RunOrDie(leaderelection.LeaderElectionConfig{
		Lock:          &rl,
		LeaseDuration: s.LeaderElection.LeaseDuration.Duration,
		RenewDeadline: s.LeaderElection.RenewDeadline.Duration,
		RetryPeriod:   s.LeaderElection.RetryPeriod.Duration,
		Callbacks: leaderelection.LeaderCallbacks{
			OnStartedLeading: run,
			OnStoppedLeading: func() {
				glog.Fatalf("lost master")
//.........这里部分代码省略.........