Add generated file

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

vendor/k8s.io/kubernetes/pkg/controller/bootstrap/tokencleaner.go

@@ -0,0 +1,203 @@
+/*
+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 bootstrap
+
+import (
+	"fmt"
+	"time"
+
+	"github.com/golang/glog"
+	"k8s.io/api/core/v1"
+	apierrors "k8s.io/apimachinery/pkg/api/errors"
+	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
+	utilruntime "k8s.io/apimachinery/pkg/util/runtime"
+	"k8s.io/apimachinery/pkg/util/wait"
+	coreinformers "k8s.io/client-go/informers/core/v1"
+	clientset "k8s.io/client-go/kubernetes"
+	corelisters "k8s.io/client-go/listers/core/v1"
+	bootstrapapi "k8s.io/client-go/tools/bootstrap/token/api"
+	"k8s.io/client-go/tools/cache"
+	"k8s.io/client-go/util/workqueue"
+	api "k8s.io/kubernetes/pkg/apis/core"
+	"k8s.io/kubernetes/pkg/controller"
+	"k8s.io/kubernetes/pkg/util/metrics"
+)
+
+// TokenCleanerOptions contains options for the TokenCleaner
+type TokenCleanerOptions struct {
+	// TokenSecretNamespace string is the namespace for token Secrets.
+	TokenSecretNamespace string
+
+	// SecretResync is the time.Duration at which to fully re-list secrets.
+	// If zero, re-list will be delayed as long as possible
+	SecretResync time.Duration
+}
+
+// DefaultTokenCleanerOptions returns a set of default options for creating a
+// TokenCleaner
+func DefaultTokenCleanerOptions() TokenCleanerOptions {
+	return TokenCleanerOptions{
+		TokenSecretNamespace: api.NamespaceSystem,
+	}
+}
+
+// TokenCleaner is a controller that deletes expired tokens
+type TokenCleaner struct {
+	tokenSecretNamespace string
+
+	client clientset.Interface
+
+	// secretLister is able to list/get secrets and is populated by the shared informer passed to NewTokenCleaner.
+	secretLister corelisters.SecretLister
+
+	// secretSynced returns true if the secret shared informer has been synced at least once.
+	secretSynced cache.InformerSynced
+
+	queue workqueue.RateLimitingInterface
+}
+
+// NewTokenCleaner returns a new *NewTokenCleaner.
+func NewTokenCleaner(cl clientset.Interface, secrets coreinformers.SecretInformer, options TokenCleanerOptions) (*TokenCleaner, error) {
+	e := &TokenCleaner{
+		client:               cl,
+		secretLister:         secrets.Lister(),
+		secretSynced:         secrets.Informer().HasSynced,
+		tokenSecretNamespace: options.TokenSecretNamespace,
+		queue:                workqueue.NewNamedRateLimitingQueue(workqueue.DefaultControllerRateLimiter(), "token_cleaner"),
+	}
+
+	if cl.CoreV1().RESTClient().GetRateLimiter() != nil {
+		if err := metrics.RegisterMetricAndTrackRateLimiterUsage("token_cleaner", cl.CoreV1().RESTClient().GetRateLimiter()); err != nil {
+			return nil, err
+		}
+	}
+
+	secrets.Informer().AddEventHandlerWithResyncPeriod(
+		cache.FilteringResourceEventHandler{
+			FilterFunc: func(obj interface{}) bool {
+				switch t := obj.(type) {
+				case *v1.Secret:
+					return t.Type == bootstrapapi.SecretTypeBootstrapToken && t.Namespace == e.tokenSecretNamespace
+				default:
+					utilruntime.HandleError(fmt.Errorf("object passed to %T that is not expected: %T", e, obj))
+					return false
+				}
+			},
+			Handler: cache.ResourceEventHandlerFuncs{
+				AddFunc:    e.enqueueSecrets,
+				UpdateFunc: func(oldSecret, newSecret interface{}) { e.enqueueSecrets(newSecret) },
+			},
+		},
+		options.SecretResync,
+	)
+
+	return e, nil
+}
+
+// Run runs controller loops and returns when they are done
+func (tc *TokenCleaner) Run(stopCh <-chan struct{}) {
+	defer utilruntime.HandleCrash()
+	defer tc.queue.ShutDown()
+
+	glog.Infof("Starting token cleaner controller")
+	defer glog.Infof("Shutting down token cleaner controller")
+
+	if !controller.WaitForCacheSync("token_cleaner", stopCh, tc.secretSynced) {
+		return
+	}
+
+	go wait.Until(tc.worker, 10*time.Second, stopCh)
+
+	<-stopCh
+}
+
+func (tc *TokenCleaner) enqueueSecrets(obj interface{}) {
+	key, err := controller.KeyFunc(obj)
+	if err != nil {
+		utilruntime.HandleError(err)
+		return
+	}
+	tc.queue.Add(key)
+}
+
+// worker runs a thread that dequeues secrets, handles them, and marks them done.
+func (tc *TokenCleaner) worker() {
+	for tc.processNextWorkItem() {
+	}
+}
+
+// processNextWorkItem deals with one key off the queue.  It returns false when it's time to quit.
+func (tc *TokenCleaner) processNextWorkItem() bool {
+	key, quit := tc.queue.Get()
+	if quit {
+		return false
+	}
+	defer tc.queue.Done(key)
+
+	if err := tc.syncFunc(key.(string)); err != nil {
+		tc.queue.AddRateLimited(key)
+		utilruntime.HandleError(fmt.Errorf("Sync %v failed with : %v", key, err))
+		return true
+	}
+
+	tc.queue.Forget(key)
+	return true
+}
+
+func (tc *TokenCleaner) syncFunc(key string) error {
+	startTime := time.Now()
+	defer func() {
+		glog.V(4).Infof("Finished syncing secret %q (%v)", key, time.Since(startTime))
+	}()
+
+	namespace, name, err := cache.SplitMetaNamespaceKey(key)
+	if err != nil {
+		return err
+	}
+
+	ret, err := tc.secretLister.Secrets(namespace).Get(name)
+	if apierrors.IsNotFound(err) {
+		glog.V(3).Infof("secret has been deleted: %v", key)
+		return nil
+	}
+
+	if err != nil {
+		return err
+	}
+
+	if ret.Type == bootstrapapi.SecretTypeBootstrapToken {
+		tc.evalSecret(ret)
+	}
+	return nil
+}
+
+func (tc *TokenCleaner) evalSecret(o interface{}) {
+	secret := o.(*v1.Secret)
+	if isSecretExpired(secret) {
+		glog.V(3).Infof("Deleting expired secret %s/%s", secret.Namespace, secret.Name)
+		var options *metav1.DeleteOptions
+		if len(secret.UID) > 0 {
+			options = &metav1.DeleteOptions{Preconditions: &metav1.Preconditions{UID: &secret.UID}}
+		}
+		err := tc.client.CoreV1().Secrets(secret.Namespace).Delete(secret.Name, options)
+		// NotFound isn't a real error (it's already been deleted)
+		// Conflict isn't a real error (the UID precondition failed)
+		if err != nil && !apierrors.IsConflict(err) && !apierrors.IsNotFound(err) {
+			glog.V(3).Infof("Error deleting Secret: %v", err)
+		}
+	}
+}