Add generated file

This PR adds generated files under pkg/client and vendor folder.

vendor/k8s.io/kubernetes/cmd/cloud-controller-manager/app/controllermanager.go

@@ -0,0 +1,277 @@
+/*
+Copyright 2016 The Kubernetes Authors.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+package app
+
+import (
+	"fmt"
+	"math/rand"
+	"net"
+	"os"
+	"strings"
+	"time"
+
+	"github.com/golang/glog"
+	"github.com/spf13/cobra"
+
+	"k8s.io/apimachinery/pkg/util/uuid"
+	"k8s.io/apimachinery/pkg/util/wait"
+	"k8s.io/client-go/informers"
+	"k8s.io/client-go/kubernetes"
+	restclient "k8s.io/client-go/rest"
+	"k8s.io/client-go/tools/leaderelection"
+	"k8s.io/client-go/tools/leaderelection/resourcelock"
+	cloudcontrollerconfig "k8s.io/kubernetes/cmd/cloud-controller-manager/app/config"
+	"k8s.io/kubernetes/cmd/cloud-controller-manager/app/options"
+	genericcontrollermanager "k8s.io/kubernetes/cmd/controller-manager/app"
+	"k8s.io/kubernetes/pkg/cloudprovider"
+	"k8s.io/kubernetes/pkg/controller"
+	cloudcontrollers "k8s.io/kubernetes/pkg/controller/cloud"
+	routecontroller "k8s.io/kubernetes/pkg/controller/route"
+	servicecontroller "k8s.io/kubernetes/pkg/controller/service"
+	"k8s.io/kubernetes/pkg/util/configz"
+	utilflag "k8s.io/kubernetes/pkg/util/flag"
+	"k8s.io/kubernetes/pkg/version/verflag"
+)
+
+const (
+	// ControllerStartJitter is the jitter value used when starting controller managers.
+	ControllerStartJitter = 1.0
+)
+
+// NewCloudControllerManagerCommand creates a *cobra.Command object with default parameters
+func NewCloudControllerManagerCommand() *cobra.Command {
+	s, err := options.NewCloudControllerManagerOptions()
+	if err != nil {
+		glog.Fatalf("unable to initialize command options: %v", err)
+	}
+
+	cmd := &cobra.Command{
+		Use: "cloud-controller-manager",
+		Long: `The Cloud controller manager is a daemon that embeds
+the cloud specific control loops shipped with Kubernetes.`,
+		Run: func(cmd *cobra.Command, args []string) {
+			verflag.PrintAndExitIfRequested()
+			utilflag.PrintFlags(cmd.Flags())
+
+			c, err := s.Config()
+			if err != nil {
+				fmt.Fprintf(os.Stderr, "%v\n", err)
+				os.Exit(1)
+			}
+
+			if err := Run(c.Complete()); err != nil {
+				fmt.Fprintf(os.Stderr, "%v\n", err)
+				os.Exit(1)
+			}
+
+		},
+	}
+	s.AddFlags(cmd.Flags())
+
+	return cmd
+}
+
+// resyncPeriod computes the time interval a shared informer waits before resyncing with the api server
+func resyncPeriod(c *cloudcontrollerconfig.CompletedConfig) func() time.Duration {
+	return func() time.Duration {
+		factor := rand.Float64() + 1
+		return time.Duration(float64(c.ComponentConfig.GenericComponent.MinResyncPeriod.Nanoseconds()) * factor)
+	}
+}
+
+// Run runs the ExternalCMServer.  This should never exit.
+func Run(c *cloudcontrollerconfig.CompletedConfig) error {
+	cloud, err := cloudprovider.InitCloudProvider(c.ComponentConfig.CloudProvider.Name, c.ComponentConfig.CloudProvider.CloudConfigFile)
+	if err != nil {
+		glog.Fatalf("Cloud provider could not be initialized: %v", err)
+	}
+	if cloud == nil {
+		glog.Fatalf("cloud provider is nil")
+	}
+
+	if cloud.HasClusterID() == false {
+		if c.ComponentConfig.KubeCloudShared.AllowUntaggedCloud == true {
+			glog.Warning("detected a cluster without a ClusterID.  A ClusterID will be required in the future.  Please tag your cluster to avoid any future issues")
+		} else {
+			glog.Fatalf("no ClusterID found.  A ClusterID is required for the cloud provider to function properly.  This check can be bypassed by setting the allow-untagged-cloud option")
+		}
+	}
+
+	// setup /configz endpoint
+	if cz, err := configz.New("componentconfig"); err == nil {
+		cz.Set(c.ComponentConfig)
+	} else {
+		glog.Errorf("unable to register configz: %c", err)
+	}
+
+	// Start the controller manager HTTP server
+	stopCh := make(chan struct{})
+	if c.SecureServing != nil {
+		handler := genericcontrollermanager.NewBaseHandler(&c.ComponentConfig.Debugging)
+		handler = genericcontrollermanager.BuildHandlerChain(handler, &c.Authorization, &c.Authentication)
+		if err := c.SecureServing.Serve(handler, 0, stopCh); err != nil {
+			return err
+		}
+	}
+	if c.InsecureServing != nil {
+		handler := genericcontrollermanager.NewBaseHandler(&c.ComponentConfig.Debugging)
+		handler = genericcontrollermanager.BuildHandlerChain(handler, &c.Authorization, &c.Authentication)
+		if err := c.InsecureServing.Serve(handler, 0, stopCh); err != nil {
+			return err
+		}
+	}
+
+	run := func(stop <-chan struct{}) {
+		rootClientBuilder := controller.SimpleControllerClientBuilder{
+			ClientConfig: c.Kubeconfig,
+		}
+		var clientBuilder controller.ControllerClientBuilder
+		if c.ComponentConfig.KubeCloudShared.UseServiceAccountCredentials {
+			clientBuilder = controller.SAControllerClientBuilder{
+				ClientConfig:         restclient.AnonymousClientConfig(c.Kubeconfig),
+				CoreClient:           c.Client.CoreV1(),
+				AuthenticationClient: c.Client.AuthenticationV1(),
+				Namespace:            "kube-system",
+			}
+		} else {
+			clientBuilder = rootClientBuilder
+		}
+
+		if err := startControllers(c, rootClientBuilder, clientBuilder, stop, cloud); err != nil {
+			glog.Fatalf("error running controllers: %v", err)
+		}
+	}
+
+	if !c.ComponentConfig.GenericComponent.LeaderElection.LeaderElect {
+		run(nil)
+		panic("unreachable")
+	}
+
+	// Identity used to distinguish between multiple cloud controller manager instances
+	id, err := os.Hostname()
+	if err != nil {
+		return err
+	}
+	// add a uniquifier so that two processes on the same host don't accidentally both become active
+	id = id + "_" + string(uuid.NewUUID())
+
+	// Lock required for leader election
+	rl, err := resourcelock.New(c.ComponentConfig.GenericComponent.LeaderElection.ResourceLock,
+		"kube-system",
+		"cloud-controller-manager",
+		c.LeaderElectionClient.CoreV1(),
+		resourcelock.ResourceLockConfig{
+			Identity:      id,
+			EventRecorder: c.EventRecorder,
+		})
+	if err != nil {
+		glog.Fatalf("error creating lock: %v", err)
+	}
+
+	// Try and become the leader and start cloud controller manager loops
+	leaderelection.RunOrDie(leaderelection.LeaderElectionConfig{
+		Lock:          rl,
+		LeaseDuration: c.ComponentConfig.GenericComponent.LeaderElection.LeaseDuration.Duration,
+		RenewDeadline: c.ComponentConfig.GenericComponent.LeaderElection.RenewDeadline.Duration,
+		RetryPeriod:   c.ComponentConfig.GenericComponent.LeaderElection.RetryPeriod.Duration,
+		Callbacks: leaderelection.LeaderCallbacks{
+			OnStartedLeading: run,
+			OnStoppedLeading: func() {
+				glog.Fatalf("leaderelection lost")
+			},
+		},
+	})
+	panic("unreachable")
+}
+
+// startControllers starts the cloud specific controller loops.
+func startControllers(c *cloudcontrollerconfig.CompletedConfig, rootClientBuilder, clientBuilder controller.ControllerClientBuilder, stop <-chan struct{}, cloud cloudprovider.Interface) error {
+	// Function to build the kube client object
+	client := func(serviceAccountName string) kubernetes.Interface {
+		return clientBuilder.ClientOrDie(serviceAccountName)
+	}
+	if cloud != nil {
+		// Initialize the cloud provider with a reference to the clientBuilder
+		cloud.Initialize(clientBuilder)
+	}
+
+	// TODO: move this setup into Config
+	versionedClient := rootClientBuilder.ClientOrDie("shared-informers")
+	sharedInformers := informers.NewSharedInformerFactory(versionedClient, resyncPeriod(c)())
+
+	// Start the CloudNodeController
+	nodeController := cloudcontrollers.NewCloudNodeController(
+		sharedInformers.Core().V1().Nodes(),
+		client("cloud-node-controller"), cloud,
+		c.ComponentConfig.KubeCloudShared.NodeMonitorPeriod.Duration,
+		c.ComponentConfig.NodeStatusUpdateFrequency.Duration)
+
+	nodeController.Run(stop)
+	time.Sleep(wait.Jitter(c.ComponentConfig.GenericComponent.ControllerStartInterval.Duration, ControllerStartJitter))
+
+	// Start the PersistentVolumeLabelController
+	pvlController := cloudcontrollers.NewPersistentVolumeLabelController(client("pvl-controller"), cloud)
+	go pvlController.Run(5, stop)
+	time.Sleep(wait.Jitter(c.ComponentConfig.GenericComponent.ControllerStartInterval.Duration, ControllerStartJitter))
+
+	// Start the service controller
+	serviceController, err := servicecontroller.New(
+		cloud,
+		client("service-controller"),
+		sharedInformers.Core().V1().Services(),
+		sharedInformers.Core().V1().Nodes(),
+		c.ComponentConfig.KubeCloudShared.ClusterName,
+	)
+	if err != nil {
+		glog.Errorf("Failed to start service controller: %v", err)
+	} else {
+		go serviceController.Run(stop, int(c.ComponentConfig.ServiceController.ConcurrentServiceSyncs))
+		time.Sleep(wait.Jitter(c.ComponentConfig.GenericComponent.ControllerStartInterval.Duration, ControllerStartJitter))
+	}
+
+	// If CIDRs should be allocated for pods and set on the CloudProvider, then start the route controller
+	if c.ComponentConfig.KubeCloudShared.AllocateNodeCIDRs && c.ComponentConfig.KubeCloudShared.ConfigureCloudRoutes {
+		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 {
+			var clusterCIDR *net.IPNet
+			if len(strings.TrimSpace(c.ComponentConfig.KubeCloudShared.ClusterCIDR)) != 0 {
+				_, clusterCIDR, err = net.ParseCIDR(c.ComponentConfig.KubeCloudShared.ClusterCIDR)
+				if err != nil {
+					glog.Warningf("Unsuccessful parsing of cluster CIDR %v: %v", c.ComponentConfig.KubeCloudShared.ClusterCIDR, err)
+				}
+			}
+
+			routeController := routecontroller.New(routes, client("route-controller"), sharedInformers.Core().V1().Nodes(), c.ComponentConfig.KubeCloudShared.ClusterName, clusterCIDR)
+			go routeController.Run(stop, c.ComponentConfig.KubeCloudShared.RouteReconciliationPeriod.Duration)
+			time.Sleep(wait.Jitter(c.ComponentConfig.GenericComponent.ControllerStartInterval.Duration, ControllerStartJitter))
+		}
+	} else {
+		glog.Infof("Will not configure cloud provider routes for allocate-node-cidrs: %v, configure-cloud-routes: %v.", c.ComponentConfig.KubeCloudShared.AllocateNodeCIDRs, c.ComponentConfig.KubeCloudShared.ConfigureCloudRoutes)
+	}
+
+	// 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.
+	err = genericcontrollermanager.WaitForAPIServer(versionedClient, 10*time.Second)
+	if err != nil {
+		glog.Fatalf("Failed to wait for apiserver being healthy: %v", err)
+	}
+
+	sharedInformers.Start(stop)
+
+	select {}
+}