Example #1
0
func (s *SchedulerServer) Run(hks hyperkube.Interface, _ []string) error {
	// get scheduler low-level config
	sc := schedcfg.CreateDefaultConfig()
	if s.SchedulerConfigFileName != "" {
		f, err := os.Open(s.SchedulerConfigFileName)
		if err != nil {
			log.Fatalf("Cannot open scheduler config file: %v", err)
		}

		err = sc.Read(bufio.NewReader(f))
		if err != nil {
			log.Fatalf("Invalid scheduler config file: %v", err)
		}
	}

	schedulerProcess, driverFactory, etcdClient, eid := s.bootstrap(hks, sc)

	if s.EnableProfiling {
		profile.InstallHandler(s.mux)
	}
	go runtime.Until(func() {
		log.V(1).Info("Starting HTTP interface")
		log.Error(http.ListenAndServe(net.JoinHostPort(s.Address.String(), strconv.Itoa(s.Port)), s.mux))
	}, sc.HttpBindInterval.Duration, schedulerProcess.Terminal())

	if s.HA {
		validation := ha.ValidationFunc(validateLeadershipTransition)
		srv := ha.NewCandidate(schedulerProcess, driverFactory, validation)
		path := fmt.Sprintf(meta.DefaultElectionFormat, s.FrameworkName)
		sid := uid.New(eid.Group(), "").String()
		log.Infof("registering for election at %v with id %v", path, sid)
		go election.Notify(election.NewEtcdMasterElector(etcdClient), path, sid, srv, nil)
	} else {
		log.Infoln("self-electing in non-HA mode")
		schedulerProcess.Elect(driverFactory)
	}
	return s.awaitFailover(schedulerProcess, func() error { return s.failover(s.getDriver(), hks) })
}
Example #2
0
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
	}

	kubeconfig.QPS = 20.0
	kubeconfig.Burst = 30

	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 {
			profile.InstallHandler(mux)
		}
		mux.Handle("/metrics", prometheus.Handler())
		server := &http.Server{
			Addr:    net.JoinHostPort(s.Address.String(), strconv.Itoa(s.Port)),
			Handler: mux,
		}
		glog.Fatal(server.ListenAndServe())
	}()

	endpoints := s.createEndpointController(kubeClient)
	go endpoints.Run(s.ConcurrentEndpointSyncs, util.NeverStop)

	controllerManager := controller.NewReplicationManager(kubeClient, controller.BurstReplicas)
	go controllerManager.Run(s.ConcurrentRCSyncs, util.NeverStop)

	//TODO(jdef) should eventually support more cloud providers here
	if s.CloudProvider != mesos.ProviderName {
		glog.Fatalf("Only provider %v is supported, you specified %v", mesos.ProviderName, s.CloudProvider)
	}
	cloud := cloudprovider.InitCloudProvider(s.CloudProvider, s.CloudConfigFile)

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

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

	if s.AllocateNodeCIDRs {
		routes, ok := cloud.Routes()
		if !ok {
			glog.Fatal("Cloud provider must support routes if allocate-node-cidrs is set")
		}
		routeController := routecontroller.New(routes, kubeClient, s.ClusterName, (*net.IPNet)(&s.ClusterCIDR))
		routeController.Run(s.NodeSyncPeriod)
	}

	resourceQuotaManager := resourcequota.NewResourceQuotaManager(kubeClient)
	resourceQuotaManager.Run(s.ResourceQuotaSyncPeriod)

	namespaceManager := namespace.NewNamespaceManager(kubeClient, s.NamespaceSyncPeriod)
	namespaceManager.Run()

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

	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.DefaultTokenControllerOptions(
					serviceaccount.JWTTokenGenerator(privateKey),
				),
			).Run()
		}
	}

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

	select {}
}