}
	return cacheSizes, nil
}

var _ serverstorage.StorageFactory = &SimpleStorageFactory{}

// SimpleStorageFactory provides a StorageFactory implementation that should be used when different
// resources essentially share the same storage config (as defined by the given storagebackend.Config).

	testingclock "k8s.io/utils/clock/testing"

	jsonpatch "gopkg.in/evanphx/json-patch.v4"
)

var (
	keyFunc = cache.DeletionHandlingMetaNamespaceKeyFunc
)

// FakeNodeHandler is a fake implementation of NodesInterface and NodeInterface. It
// allows test cases to have fine-grained control over mock behaviors. We also need
// PodsInterface and PodInterface to test list & delete pods, which is implemented in

//
// Plugins that make pod unschedulable (PreEnqueue, PreFilter, Filter, Reserve, and Permit plugins) should implement this interface,
// otherwise the default implementation will be used, which is less efficient in requeueing Pods rejected by the plugin.
// And, if plugins other than above extension points support this interface, they are just ignored.
type EnqueueExtensions interface {
	Plugin

resources. The scheduler then ranks each valid Node and binds the Pod to a
suitable Node. Multiple different schedulers may be used within a cluster;
kube-scheduler is the reference implementation.
See [scheduling](https://kubernetes.io/docs/concepts/scheduling-eviction/)
for more information about scheduling and the kube-scheduler component.`,
		RunE: func(cmd *cobra.Command, args []string) error {

// as an interface to allow for extensions that provide different semantics. Currently, there is only one implementation.
type StatefulSetControlInterface interface {
	// UpdateStatefulSet implements the control logic for Pod creation, update, and deletion, and
	// persistent volume creation, update, and deletion.
	// If an implementation returns a non-nil error, the invocation will be retried using a rate-limited strategy.

	WaitForKubelet(healthzAddress string, healthzPort int32) error
	// SetTimeout adjusts the timeout to the specified duration
	SetTimeout(timeout time.Duration)
}

// KubeWaiter is an implementation of Waiter that is backed by a Kubernetes client
type KubeWaiter struct {
	client  clientset.Interface
	timeout time.Duration
	writer  io.Writer
}

	"k8s.io/kubernetes/pkg/volume/util/hostutil"
	"k8s.io/kubernetes/pkg/volume/util/subpath"
)

// NewInitializedVolumePluginMgr returns a new instance of
// volume.VolumePluginMgr initialized with kubelets implementation of the
// volume.VolumeHost interface.
//
// kubelet - used by VolumeHost methods to expose kubelet specific parameters
// plugins - used to initialize volumePluginMgr
func NewInitializedVolumePluginMgr(

	return retrieveValidatedConfigInfo(nil, cfg, constants.DiscoveryRetryInterval, timeout)
}

// retrieveValidatedConfigInfo is a private implementation of RetrieveValidatedConfigInfo.
// It accepts an optional clientset that can be used for testing purposes.

		// return the fake clientset used for dry-running
		return fakeclient, nil
	}
	return kubeconfigutil.ClientSetFromFile(file)
}

// getWaiter gets the right waiter implementation
func getWaiter(dryRun bool, client clientset.Interface, timeout time.Duration) apiclient.Waiter {
	if dryRun {
		return dryrunutil.NewWaiter()
	}
	return apiclient.NewKubeWaiter(client, timeout, os.Stdout)

//		controller1: expects  2 adds in 2 minutes
//		controller2: expects  2 dels in 2 minutes
//		controller3: expects -1 adds in 2 minutes => controller3's expectations have already been met
//	}
//
// Implementation:
//	ControlleeExpectation = pair of atomic counters to track controllee's creation/deletion
//	ControllerExpectationsStore = TTLStore + a ControlleeExpectation per controller
//