Golang app.UnsecuredKubeletConfig函數代碼示例

//.........這裏部分代碼省略.........
	server.CPUCFSQuota = true // enable cpu cfs quota enforcement by default
	server.MaxPods = 110
	server.SerializeImagePulls = false // disable serial image pulls by default
	if enableDNS {
		// if we are running local DNS, skydns will load the default recursive nameservers for us
		server.ResolverConfig = ""
	}

	if sdnplugin.IsOpenShiftNetworkPlugin(server.NetworkPluginName) {
		// set defaults for openshift-sdn
		server.HairpinMode = componentconfig.HairpinNone
		server.ConfigureCBR0 = false
	}

	// prevents kube from generating certs
	server.TLSCertFile = options.ServingInfo.ServerCert.CertFile
	server.TLSPrivateKeyFile = options.ServingInfo.ServerCert.KeyFile

	containerized := cmdutil.Env("OPENSHIFT_CONTAINERIZED", "") == "true"
	server.Containerized = containerized

	// resolve extended arguments
	// TODO: this should be done in config validation (along with the above) so we can provide
	// proper errors
	if err := cmdflags.Resolve(options.KubeletArguments, server.AddFlags); len(err) > 0 {
		return nil, kerrors.NewAggregate(err)
	}

	proxyconfig, err := buildKubeProxyConfig(options)
	if err != nil {
		return nil, err
	}

	cfg, err := kubeletapp.UnsecuredKubeletConfig(server)
	if err != nil {
		return nil, err
	}

	// provide any config overrides
	cfg.NodeName = options.NodeName
	cfg.KubeClient = clientadapter.FromUnversionedClient(kubeClient)
	cfg.EventClient = clientadapter.FromUnversionedClient(eventClient)
	cfg.DockerExecHandler = dockerExecHandler

	// Setup auth
	authnTTL, err := time.ParseDuration(options.AuthConfig.AuthenticationCacheTTL)
	if err != nil {
		return nil, err
	}
	authn, err := newAuthenticator(clientCAs, clientcmd.AnonymousClientConfig(osClientConfig), authnTTL, options.AuthConfig.AuthenticationCacheSize)
	if err != nil {
		return nil, err
	}

	authzAttr, err := newAuthorizerAttributesGetter(options.NodeName)
	if err != nil {
		return nil, err
	}

	authzTTL, err := time.ParseDuration(options.AuthConfig.AuthorizationCacheTTL)
	if err != nil {
		return nil, err
	}
	authz, err := newAuthorizer(originClient, authzTTL, options.AuthConfig.AuthorizationCacheSize)
	if err != nil {
		return nil, err

func (s *KubeletExecutorServer) runKubelet(
	nodeInfos <-chan executor.NodeInfo,
	kubeletDone chan<- struct{},
	staticPodsConfigPath string,
	apiclient *clientset.Clientset,
	podLW *cache.ListWatch,
	registry executor.Registry,
	executorDone <-chan struct{},
) (err error) {
	defer func() {
		if err != nil {
			// close the channel here. When Run returns without error, the executorKubelet is
			// responsible to do this. If it returns with an error, we are responsible here.
			close(kubeletDone)
		}
	}()

	kcfg, err := kubeletapp.UnsecuredKubeletConfig(s.KubeletServer)
	if err != nil {
		return err
	}

	// apply Mesos specific settings
	kcfg.Builder = func(kc *kubeletapp.KubeletConfig) (kubeletapp.KubeletBootstrap, *kconfig.PodConfig, error) {
		k, pc, err := kubeletapp.CreateAndInitKubelet(kc)
		if err != nil {
			return k, pc, err
		}

		// decorate kubelet such that it shuts down when the executor is
		decorated := &executorKubelet{
			Kubelet:      k.(*kubelet.Kubelet),
			kubeletDone:  kubeletDone,
			executorDone: executorDone,
		}

		return decorated, pc, nil
	}
	kcfg.DockerDaemonContainer = "" // don't move the docker daemon into a cgroup
	kcfg.Hostname = kcfg.HostnameOverride
	kcfg.KubeClient = apiclient

	// taken from KubeletServer#Run(*KubeletConfig)
	eventClientConfig, err := kubeletapp.CreateAPIServerClientConfig(s.KubeletServer)
	if err != nil {
		return err
	}

	// make a separate client for events
	eventClientConfig.QPS = s.EventRecordQPS
	eventClientConfig.Burst = s.EventBurst
	kcfg.EventClient, err = clientset.NewForConfig(eventClientConfig)
	if err != nil {
		return err
	}

	kcfg.NodeName = kcfg.HostnameOverride
	kcfg.PodConfig = kconfig.NewPodConfig(kconfig.PodConfigNotificationIncremental, kcfg.Recorder) // override the default pod source
	kcfg.StandaloneMode = false
	kcfg.SystemContainer = "" // don't take control over other system processes.
	if kcfg.Cloud != nil {
		// fail early and hard because having the cloud provider loaded would go unnoticed,
		// but break bigger cluster because accessing the state.json from every slave kills the master.
		panic("cloud provider must not be set")
	}

	// create custom cAdvisor interface which return the resource values that Mesos reports
	ni := <-nodeInfos
	cAdvisorInterface, err := NewMesosCadvisor(ni.Cores, ni.Mem, s.CAdvisorPort)
	if err != nil {
		return err
	}

	kcfg.CAdvisorInterface = cAdvisorInterface
	kcfg.ContainerManager, err = cm.NewContainerManager(kcfg.Mounter, cAdvisorInterface)
	if err != nil {
		return err
	}

	go func() {
		for ni := range nodeInfos {
			// TODO(sttts): implement with MachineAllocable mechanism when https://github.com/kubernetes/kubernetes/issues/13984 is finished
			log.V(3).Infof("ignoring updated node resources: %v", ni)
		}
	}()

	// create main pod source, it will stop generating events once executorDone is closed
	newSourceMesos(executorDone, kcfg.PodConfig.Channel(mesosSource), podLW, registry)

	// create static-pods directory file source
	log.V(2).Infof("initializing static pods source factory, configured at path %q", staticPodsConfigPath)
	fileSourceUpdates := kcfg.PodConfig.Channel(kubetypes.FileSource)
	kconfig.NewSourceFile(staticPodsConfigPath, kcfg.HostnameOverride, kcfg.FileCheckFrequency, fileSourceUpdates)

	// run the kubelet
	// NOTE: because kcfg != nil holds, the upstream Run function will not
	//       initialize the cloud provider. We explicitly wouldn't want
	//       that because then every kubelet instance would query the master
	//       state.json which does not scale.
	err = kubeletapp.Run(s.KubeletServer, kcfg)
//.........這裏部分代碼省略.........

func BuildKubernetesNodeConfig(options configapi.NodeConfig) (*NodeConfig, error) {
	originClient, _, err := configapi.GetOpenShiftClient(options.MasterKubeConfig)
	if err != nil {
		return nil, err
	}
	kubeClient, _, err := configapi.GetKubeClient(options.MasterKubeConfig)
	if err != nil {
		return nil, err
	}
	// Make a separate client for event reporting, to avoid event QPS blocking node calls
	eventClient, _, err := configapi.GetKubeClient(options.MasterKubeConfig)
	if err != nil {
		return nil, err
	}

	if options.NodeName == "localhost" {
		glog.Warningf(`Using "localhost" as node name will not resolve from all locations`)
	}

	clientCAs, err := util.CertPoolFromFile(options.ServingInfo.ClientCA)
	if err != nil {
		return nil, err
	}

	imageTemplate := variable.NewDefaultImageTemplate()
	imageTemplate.Format = options.ImageConfig.Format
	imageTemplate.Latest = options.ImageConfig.Latest

	var path string
	var fileCheckInterval int64
	if options.PodManifestConfig != nil {
		path = options.PodManifestConfig.Path
		fileCheckInterval = options.PodManifestConfig.FileCheckIntervalSeconds
	}

	var dockerExecHandler dockertools.ExecHandler

	switch options.DockerConfig.ExecHandlerName {
	case configapi.DockerExecHandlerNative:
		dockerExecHandler = &dockertools.NativeExecHandler{}
	case configapi.DockerExecHandlerNsenter:
		dockerExecHandler = &dockertools.NsenterExecHandler{}
	}

	kubeAddressStr, kubePortStr, err := net.SplitHostPort(options.ServingInfo.BindAddress)
	if err != nil {
		return nil, fmt.Errorf("cannot parse node address: %v", err)
	}
	kubePort, err := strconv.Atoi(kubePortStr)
	if err != nil {
		return nil, fmt.Errorf("cannot parse node port: %v", err)
	}

	// declare the OpenShift defaults from config
	server := kubeletoptions.NewKubeletServer()
	server.Config = path
	server.RootDirectory = options.VolumeDirectory
	server.NodeIP = options.NodeIP
	server.HostnameOverride = options.NodeName
	server.AllowPrivileged = true
	server.RegisterNode = true
	server.Address = kubeAddressStr
	server.Port = uint(kubePort)
	server.ReadOnlyPort = 0 // no read only access
	server.CAdvisorPort = 0 // no unsecured cadvisor access
	server.HealthzPort = 0  // no unsecured healthz access
	server.ClusterDNS = options.DNSIP
	server.ClusterDomain = options.DNSDomain
	server.NetworkPluginName = options.NetworkConfig.NetworkPluginName
	server.HostNetworkSources = strings.Join([]string{kubelettypes.ApiserverSource, kubelettypes.FileSource}, ",")
	server.HostPIDSources = strings.Join([]string{kubelettypes.ApiserverSource, kubelettypes.FileSource}, ",")
	server.HostIPCSources = strings.Join([]string{kubelettypes.ApiserverSource, kubelettypes.FileSource}, ",")
	server.HTTPCheckFrequency = unversioned.Duration{Duration: time.Duration(0)} // no remote HTTP pod creation access
	server.FileCheckFrequency = unversioned.Duration{Duration: time.Duration(fileCheckInterval) * time.Second}
	server.PodInfraContainerImage = imageTemplate.ExpandOrDie("pod")
	server.CPUCFSQuota = true // enable cpu cfs quota enforcement by default
	server.MaxPods = 110

	// prevents kube from generating certs
	server.TLSCertFile = options.ServingInfo.ServerCert.CertFile
	server.TLSPrivateKeyFile = options.ServingInfo.ServerCert.KeyFile

	containerized := cmdutil.Env("OPENSHIFT_CONTAINERIZED", "") == "true"
	server.Containerized = containerized

	// resolve extended arguments
	// TODO: this should be done in config validation (along with the above) so we can provide
	// proper errors
	if err := cmdflags.Resolve(options.KubeletArguments, server.AddFlags); len(err) > 0 {
		return nil, kerrors.NewAggregate(err)
	}

	proxyconfig, err := buildKubeProxyConfig(options)
	if err != nil {
		return nil, err
	}

	cfg, err := kubeletapp.UnsecuredKubeletConfig(server)
	if err != nil {
		return nil, err
//.........這裏部分代碼省略.........