Merge pull request #30251 from hongchaodeng/r2

Automatic merge from submit-queue

Move new etcd storage (low level storage) into cacher

In an effort for #29888, we are pushing forward this:

What?
- It changes creating etcd storage.Interface impl into creating config
- In creating cacher storage (StorageWithCacher), it passes config created above and new etcd storage inside.

Why?
- We want to expose the information of (etcd) kv client to cacher. Cacher storage uses this information to talk to remote storage.

cmd/kube-apiserver/app/server.go

@@ -186,11 +186,11 @@ func Run(s *options.APIServer) error {
 	if s.ServiceAccountLookup {
 		// If we need to look up service accounts and tokens,
 		// go directly to etcd to avoid recursive auth insanity
-		storage, err := storageFactory.New(api.Resource("serviceaccounts"))
+		storageConfig, err := storageFactory.NewConfig(api.Resource("serviceaccounts"))
 		if err != nil {
 			glog.Fatalf("Unable to get serviceaccounts storage: %v", err)
 		}
-		serviceAccountGetter = serviceaccountcontroller.NewGetterFromStorageInterface(storage, storageFactory.ResourcePrefix(api.Resource("serviceaccounts")), storageFactory.ResourcePrefix(api.Resource("secrets")))
+		serviceAccountGetter = serviceaccountcontroller.NewGetterFromStorageInterface(storageConfig, storageFactory.ResourcePrefix(api.Resource("serviceaccounts")), storageFactory.ResourcePrefix(api.Resource("secrets")))
 	}
 
 	authenticator, err := authenticator.New(authenticator.AuthenticatorConfig{
@@ -227,11 +227,11 @@ func Run(s *options.APIServer) error {
 
 	if modeEnabled(apiserver.ModeRBAC) {
 		mustGetRESTOptions := func(resource string) generic.RESTOptions {
-			s, err := storageFactory.New(rbac.Resource(resource))
+			config, err := storageFactory.NewConfig(rbac.Resource(resource))
 			if err != nil {
 				glog.Fatalf("Unable to get %s storage: %v", resource, err)
 			}
-			return generic.RESTOptions{Storage: s, Decorator: generic.UndecoratedStorage, ResourcePrefix: storageFactory.ResourcePrefix(rbac.Resource(resource))}
+			return generic.RESTOptions{StorageConfig: config, Decorator: generic.UndecoratedStorage, ResourcePrefix: storageFactory.ResourcePrefix(rbac.Resource(resource))}
 		}
 
 		// For initial bootstrapping go directly to etcd to avoid privillege escalation check.

examples/apiserver/apiserver.go

@@ -78,13 +78,13 @@ func Run(serverOptions *genericoptions.ServerRunOptions) error {
 		return fmt.Errorf("%v", err)
 	}
 	storageFactory := newStorageFactory()
-	storage, err := storageFactory.New(unversioned.GroupResource{Group: groupName, Resource: "testtype"})
+	storageConfig, err := storageFactory.NewConfig(unversioned.GroupResource{Group: groupName, Resource: "testtype"})
 	if err != nil {
-		return fmt.Errorf("Unable to get storage: %v", err)
+		return fmt.Errorf("Unable to get storage config: %v", err)
 	}
 
 	restStorageMap := map[string]rest.Storage{
-		"testtypes": testgroupetcd.NewREST(storage, s.StorageDecorator()),
+		"testtypes": testgroupetcd.NewREST(storageConfig, s.StorageDecorator()),
 	}
 	apiGroupInfo := genericapiserver.APIGroupInfo{
 		GroupMeta: *groupMeta,

examples/apiserver/rest/reststorage.go

@@ -25,6 +25,7 @@ import (
 	"k8s.io/kubernetes/pkg/registry/generic/registry"
 	"k8s.io/kubernetes/pkg/runtime"
 	"k8s.io/kubernetes/pkg/storage"
+	"k8s.io/kubernetes/pkg/storage/storagebackend"
 )
 
 type REST struct {
@@ -32,13 +33,13 @@ type REST struct {
 }
 
 // NewREST returns a RESTStorage object that will work with testtype.
-func NewREST(s storage.Interface, storageDecorator generic.StorageDecorator) *REST {
+func NewREST(config *storagebackend.Config, storageDecorator generic.StorageDecorator) *REST {
 	prefix := "/testtype"
 	newListFunc := func() runtime.Object { return &testgroup.TestTypeList{} }
 	// Usually you should reuse your RESTCreateStrategy.
 	strategy := &NotNamespaceScoped{}
 	storageInterface := storageDecorator(
-		s, 100, &testgroup.TestType{}, prefix, strategy, newListFunc, storage.NoTriggerPublisher)
+		config, 100, &testgroup.TestType{}, prefix, strategy, newListFunc, storage.NoTriggerPublisher)
 	store := &registry.Store{
 		NewFunc: func() runtime.Object { return &testgroup.TestType{} },
 		// NewListFunc returns an object capable of storing results of an etcd list.

federation/cmd/federation-apiserver/app/server.go

@@ -162,12 +162,12 @@ func Run(s *options.ServerRunOptions) error {
 }
 
 func createRESTOptionsOrDie(s *options.ServerRunOptions, g *genericapiserver.GenericAPIServer, f genericapiserver.StorageFactory, resource unversioned.GroupResource) generic.RESTOptions {
-	storage, err := f.New(resource)
+	config, err := f.NewConfig(resource)
 	if err != nil {
-		glog.Fatalf("Unable to find storage destination for %v, due to %v", resource, err.Error())
+		glog.Fatalf("Unable to find storage config for %v, due to %v", resource, err.Error())
 	}
 	return generic.RESTOptions{
-		Storage:                 storage,
+		StorageConfig:           config,
 		Decorator:               g.StorageDecorator(),
 		DeleteCollectionWorkers: s.DeleteCollectionWorkers,
 		ResourcePrefix:          f.ResourcePrefix(resource),

federation/registry/cluster/etcd/etcd.go

@@ -50,7 +50,7 @@ func NewREST(opts generic.RESTOptions) (*REST, *StatusREST) {
 
 	newListFunc := func() runtime.Object { return &federation.ClusterList{} }
 	storageInterface := opts.Decorator(
-		opts.Storage,
+		opts.StorageConfig,
 		100,
 		&federation.Cluster{},
 		prefix,

federation/registry/cluster/etcd/etcd_test.go

@@ -30,9 +30,9 @@ import (
 )
 
 func newStorage(t *testing.T) (*REST, *etcdtesting.EtcdTestServer) {
-	etcdStorage, server := registrytest.NewEtcdStorage(t, federation.GroupName)
+	storageConfig, server := registrytest.NewEtcdStorage(t, federation.GroupName)
 	restOptions := generic.RESTOptions{
-		Storage:                 etcdStorage,
+		StorageConfig:           storageConfig,
 		Decorator:               generic.UndecoratedStorage,
 		DeleteCollectionWorkers: 1}
 	storage, _ := NewREST(restOptions)

pkg/controller/serviceaccount/tokengetter.go

@@ -25,7 +25,7 @@ import (
 	serviceaccountregistry "k8s.io/kubernetes/pkg/registry/serviceaccount"
 	serviceaccountetcd "k8s.io/kubernetes/pkg/registry/serviceaccount/etcd"
 	"k8s.io/kubernetes/pkg/serviceaccount"
-	"k8s.io/kubernetes/pkg/storage"
+	"k8s.io/kubernetes/pkg/storage/storagebackend"
 )
 
 // clientGetter implements ServiceAccountTokenGetter using a clientset.Interface
@@ -69,9 +69,9 @@ func (r *registryGetter) GetSecret(namespace, name string) (*api.Secret, error)
 
 // NewGetterFromStorageInterface returns a ServiceAccountTokenGetter that
 // uses the specified storage to retrieve service accounts and secrets.
-func NewGetterFromStorageInterface(s storage.Interface, saPrefix, secretPrefix string) serviceaccount.ServiceAccountTokenGetter {
+func NewGetterFromStorageInterface(config *storagebackend.Config, saPrefix, secretPrefix string) serviceaccount.ServiceAccountTokenGetter {
 	return NewGetterFromRegistries(
-		serviceaccountregistry.NewRegistry(serviceaccountetcd.NewREST(generic.RESTOptions{Storage: s, Decorator: generic.UndecoratedStorage, ResourcePrefix: saPrefix})),
+		serviceaccountregistry.NewRegistry(serviceaccountetcd.NewREST(generic.RESTOptions{StorageConfig: config, Decorator: generic.UndecoratedStorage, ResourcePrefix: saPrefix})),
-		secret.NewRegistry(secretetcd.NewREST(generic.RESTOptions{Storage: s, Decorator: generic.UndecoratedStorage, ResourcePrefix: secretPrefix})),
+		secret.NewRegistry(secretetcd.NewREST(generic.RESTOptions{StorageConfig: config, Decorator: generic.UndecoratedStorage, ResourcePrefix: secretPrefix})),
 	)
 }

pkg/genericapiserver/storage_factory.go

@@ -25,9 +25,7 @@ import (
 	"k8s.io/kubernetes/pkg/runtime"
 	"k8s.io/kubernetes/pkg/runtime/serializer/recognizer"
 	"k8s.io/kubernetes/pkg/runtime/serializer/versioning"
-	"k8s.io/kubernetes/pkg/storage"
 	"k8s.io/kubernetes/pkg/storage/storagebackend"
-	storagebackendfactory "k8s.io/kubernetes/pkg/storage/storagebackend/factory"
 	"k8s.io/kubernetes/pkg/util/sets"
 
 	"github.com/golang/glog"
@@ -37,7 +35,7 @@ import (
 type StorageFactory interface {
 	// New finds the storage destination for the given group and resource. It will
 	// return an error if the group has no storage destination configured.
-	New(groupResource unversioned.GroupResource) (storage.Interface, error)
+	NewConfig(groupResource unversioned.GroupResource) (*storagebackend.Config, error)
 
 	// ResourcePrefix returns the overridden resource prefix for the GroupResource
 	// This allows for cohabitation of resources with different native types and provides
@@ -76,9 +74,6 @@ type DefaultStorageFactory struct {
 
 	// newStorageCodecFn exists to be overwritten for unit testing.
 	newStorageCodecFn func(storageMediaType string, ns runtime.StorageSerializer, storageVersion, memoryVersion unversioned.GroupVersion, config storagebackend.Config) (codec runtime.Codec, err error)
-
-	// newStorageFn exists to be overwritten for unit testing.
-	newStorageFn func(config storagebackend.Config, codec runtime.Codec) (etcdStorage storage.Interface, err error)
 }
 
 type groupResourceOverrides struct {
@@ -118,7 +113,6 @@ func NewDefaultStorageFactory(config storagebackend.Config, defaultMediaType str
 		APIResourceConfigSource: resourceConfig,
 
 		newStorageCodecFn: NewStorageCodec,
-		newStorageFn:      newStorage,
 	}
 }
 
@@ -173,7 +167,7 @@ func (s *DefaultStorageFactory) getStorageGroupResource(groupResource unversione
 
 // New finds the storage destination for the given group and resource. It will
 // return an error if the group has no storage destination configured.
-func (s *DefaultStorageFactory) New(groupResource unversioned.GroupResource) (storage.Interface, error) {
+func (s *DefaultStorageFactory) NewConfig(groupResource unversioned.GroupResource) (*storagebackend.Config, error) {
 	chosenStorageResource := s.getStorageGroupResource(groupResource)
 
 	groupOverride := s.Overrides[getAllResourcesAlias(chosenStorageResource)]
@@ -232,12 +226,8 @@ func (s *DefaultStorageFactory) New(groupResource unversioned.GroupResource) (st
 	}
 
 	glog.V(3).Infof("storing %v in %v, reading as %v from %v", groupResource, storageEncodingVersion, internalVersion, config)
-	return s.newStorageFn(config, codec)
+	config.Codec = codec
-}
+	return &config, nil
-
-// newStorage is the default implementation for creating a storage backend.
-func newStorage(config storagebackend.Config, codec runtime.Codec) (etcdStorage storage.Interface, err error) {
-	return storagebackendfactory.Create(config, codec)
 }
 
 // Get all backends for all registered storage destinations.

pkg/genericapiserver/storage_factory_test.go

@@ -24,8 +24,6 @@ import (
 	"k8s.io/kubernetes/pkg/api/unversioned"
 	"k8s.io/kubernetes/pkg/apis/extensions"
 	"k8s.io/kubernetes/pkg/genericapiserver/options"
-	"k8s.io/kubernetes/pkg/runtime"
-	"k8s.io/kubernetes/pkg/storage"
 	"k8s.io/kubernetes/pkg/storage/storagebackend"
 )
 
@@ -50,38 +48,31 @@ func TestUpdateEtcdOverrides(t *testing.T) {
 
 	defaultEtcdLocation := []string{"http://127.0.0.1"}
 	for i, test := range testCases {
-		actualConfig := storagebackend.Config{}
-		newStorageFn := func(config storagebackend.Config, codec runtime.Codec) (_ storage.Interface, err error) {
-			actualConfig = config
-			return nil, nil
-		}
-
 		defaultConfig := storagebackend.Config{
 			Prefix:     options.DefaultEtcdPathPrefix,
 			ServerList: defaultEtcdLocation,
 		}
 		storageFactory := NewDefaultStorageFactory(defaultConfig, "", api.Codecs, NewDefaultResourceEncodingConfig(), NewResourceConfig())
-		storageFactory.newStorageFn = newStorageFn
 		storageFactory.SetEtcdLocation(test.resource, test.servers)
 
 		var err error
-		_, err = storageFactory.New(test.resource)
+		config, err := storageFactory.NewConfig(test.resource)
 		if err != nil {
 			t.Errorf("%d: unexpected error %v", i, err)
 			continue
 		}
-		if !reflect.DeepEqual(actualConfig.ServerList, test.servers) {
+		if !reflect.DeepEqual(config.ServerList, test.servers) {
-			t.Errorf("%d: expected %v, got %v", i, test.servers, actualConfig.ServerList)
+			t.Errorf("%d: expected %v, got %v", i, test.servers, config.ServerList)
 			continue
 		}
 
-		_, err = storageFactory.New(unversioned.GroupResource{Group: api.GroupName, Resource: "unlikely"})
+		config, err = storageFactory.NewConfig(unversioned.GroupResource{Group: api.GroupName, Resource: "unlikely"})
 		if err != nil {
 			t.Errorf("%d: unexpected error %v", i, err)
 			continue
 		}
-		if !reflect.DeepEqual(actualConfig.ServerList, defaultEtcdLocation) {
+		if !reflect.DeepEqual(config.ServerList, defaultEtcdLocation) {
-			t.Errorf("%d: expected %v, got %v", i, defaultEtcdLocation, actualConfig.ServerList)
+			t.Errorf("%d: expected %v, got %v", i, defaultEtcdLocation, config.ServerList)
 			continue
 		}
 

pkg/master/master.go

@@ -82,9 +82,9 @@ import (
 	"k8s.io/kubernetes/pkg/registry/thirdpartyresourcedata"
 	thirdpartyresourcedataetcd "k8s.io/kubernetes/pkg/registry/thirdpartyresourcedata/etcd"
 	"k8s.io/kubernetes/pkg/runtime"
-	"k8s.io/kubernetes/pkg/storage"
 	etcdmetrics "k8s.io/kubernetes/pkg/storage/etcd/metrics"
 	etcdutil "k8s.io/kubernetes/pkg/storage/etcd/util"
+	"k8s.io/kubernetes/pkg/storage/storagebackend"
 	"k8s.io/kubernetes/pkg/util/sets"
 
 	"github.com/golang/glog"
@@ -142,7 +142,7 @@ type Master struct {
 	serviceNodePortAllocator  rangeallocation.RangeRegistry
 
 	// storage for third party objects
-	thirdPartyStorage storage.Interface
+	thirdPartyStorageConfig *storagebackend.Config
 	// map from api path to a tuple of (storage for the objects, APIGroup)
 	thirdPartyResources map[string]thirdPartyEntry
 	// protects the map
@@ -276,7 +276,7 @@ func (m *Master) InstallAPIs(c *Config) {
 	// TODO seems like this bit ought to be unconditional and the REST API is controlled by the config
 	if c.APIResourceConfigSource.ResourceEnabled(extensionsapiv1beta1.SchemeGroupVersion.WithResource("thirdpartyresources")) {
 		var err error
-		m.thirdPartyStorage, err = c.StorageFactory.New(extensions.Resource("thirdpartyresources"))
+		m.thirdPartyStorageConfig, err = c.StorageFactory.NewConfig(extensions.Resource("thirdpartyresources"))
 		if err != nil {
 			glog.Fatalf("Error getting third party storage: %v", err)
 		}
@@ -349,7 +349,7 @@ func (m *Master) initV1ResourcesStorage(c *Config) {
 		return
 	}
 
-	serviceStorage, err := c.StorageFactory.New(api.Resource("services"))
+	serviceStorageConfig, err := c.StorageFactory.NewConfig(api.Resource("services"))
 	if err != nil {
 		glog.Fatal(err.Error())
 	}
@@ -357,7 +357,7 @@ func (m *Master) initV1ResourcesStorage(c *Config) {
 	serviceClusterIPAllocator := ipallocator.NewAllocatorCIDRRange(serviceClusterIPRange, func(max int, rangeSpec string) allocator.Interface {
 		mem := allocator.NewAllocationMap(max, rangeSpec)
 		// TODO etcdallocator package to return a storage interface via the storageFactory
-		etcd := etcdallocator.NewEtcd(mem, "/ranges/serviceips", api.Resource("serviceipallocations"), serviceStorage)
+		etcd := etcdallocator.NewEtcd(mem, "/ranges/serviceips", api.Resource("serviceipallocations"), serviceStorageConfig)
 		serviceClusterIPRegistry = etcd
 		return etcd
 	})
@@ -367,7 +367,7 @@ func (m *Master) initV1ResourcesStorage(c *Config) {
 	serviceNodePortAllocator := portallocator.NewPortAllocatorCustom(m.ServiceNodePortRange, func(max int, rangeSpec string) allocator.Interface {
 		mem := allocator.NewAllocationMap(max, rangeSpec)
 		// TODO etcdallocator package to return a storage interface via the storageFactory
-		etcd := etcdallocator.NewEtcd(mem, "/ranges/servicenodeports", api.Resource("servicenodeportallocations"), serviceStorage)
+		etcd := etcdallocator.NewEtcd(mem, "/ranges/servicenodeports", api.Resource("servicenodeportallocations"), serviceStorageConfig)
 		serviceNodePortRegistry = etcd
 		return etcd
 	})
@@ -648,7 +648,7 @@ func (m *Master) InstallThirdPartyResource(rsrc *extensions.ThirdPartyResource)
 func (m *Master) thirdpartyapi(group, kind, version, pluralResource string) *apiserver.APIGroupVersion {
 	resourceStorage := thirdpartyresourcedataetcd.NewREST(
 		generic.RESTOptions{
-			Storage:                 m.thirdPartyStorage,
+			StorageConfig:           m.thirdPartyStorageConfig,
 			Decorator:               generic.UndecoratedStorage,
 			DeleteCollectionWorkers: m.deleteCollectionWorkers,
 		},
@@ -691,13 +691,13 @@ func (m *Master) thirdpartyapi(group, kind, version, pluralResource string) *api
 }
 
 func (m *Master) GetRESTOptionsOrDie(c *Config, resource unversioned.GroupResource) generic.RESTOptions {
-	storage, err := c.StorageFactory.New(resource)
+	storageConfig, err := c.StorageFactory.NewConfig(resource)
 	if err != nil {
 		glog.Fatalf("Unable to find storage destination for %v, due to %v", resource, err.Error())
 	}
 
 	return generic.RESTOptions{
-		Storage:                 storage,
+		StorageConfig:           storageConfig,
 		Decorator:               m.StorageDecorator(),
 		DeleteCollectionWorkers: m.deleteCollectionWorkers,
 		ResourcePrefix:          c.StorageFactory.ResourcePrefix(resource),

pkg/master/master_test.go

@@ -51,6 +51,7 @@ import (
 	"k8s.io/kubernetes/pkg/genericapiserver"
 	"k8s.io/kubernetes/pkg/kubelet/client"
 	"k8s.io/kubernetes/pkg/registry/endpoint"
+	"k8s.io/kubernetes/pkg/registry/generic"
 	"k8s.io/kubernetes/pkg/registry/namespace"
 	"k8s.io/kubernetes/pkg/registry/registrytest"
 	"k8s.io/kubernetes/pkg/registry/thirdpartyresourcedata"
@@ -700,7 +701,8 @@ func testInstallThirdPartyAPIListVersion(t *testing.T, version string) {
 			})
 
 			if test.items != nil {
-				err := createThirdPartyList(master.thirdPartyStorage,
+				err := createThirdPartyList(
+					generic.NewRawStorage(master.thirdPartyStorageConfig),
 					fmt.Sprintf("/ThirdPartyResourceData/%s/%s/default", group, plural.Resource),
 					test.items)
 				if !assert.NoError(err, test.test) {
@@ -823,7 +825,8 @@ func testInstallThirdPartyAPIGetVersion(t *testing.T, version string) {
 		SomeField:  "test field",
 		OtherField: 10,
 	}
-	if !assert.NoError(createThirdPartyObject(master.thirdPartyStorage, "/ThirdPartyResourceData/company.com/foos/default/test", "test", expectedObj)) {
+	s := generic.NewRawStorage(master.thirdPartyStorageConfig)
+	if !assert.NoError(createThirdPartyObject(s, "/ThirdPartyResourceData/company.com/foos/default/test", "test", expectedObj)) {
 		t.FailNow()
 		return
 	}
@@ -899,9 +902,8 @@ func testInstallThirdPartyAPIPostForVersion(t *testing.T, version string) {
 	}
 
 	thirdPartyObj := extensions.ThirdPartyResourceData{}
-	err = master.thirdPartyStorage.Get(
+	s := generic.NewRawStorage(master.thirdPartyStorageConfig)
-		context.TODO(), etcdtest.AddPrefix("/ThirdPartyResourceData/company.com/foos/default/test"),
+	err = s.Get(context.TODO(), etcdtest.AddPrefix("/ThirdPartyResourceData/company.com/foos/default/test"), &thirdPartyObj, false)
-		&thirdPartyObj, false)
 	if !assert.NoError(err) {
 		t.FailNow()
 	}
@@ -936,7 +938,8 @@ func testInstallThirdPartyAPIDeleteVersion(t *testing.T, version string) {
 		SomeField:  "test field",
 		OtherField: 10,
 	}
-	if !assert.NoError(createThirdPartyObject(master.thirdPartyStorage, "/ThirdPartyResourceData/company.com/foos/default/test", "test", expectedObj)) {
+	s := generic.NewRawStorage(master.thirdPartyStorageConfig)
+	if !assert.NoError(createThirdPartyObject(s, "/ThirdPartyResourceData/company.com/foos/default/test", "test", expectedObj)) {
 		t.FailNow()
 		return
 	}
@@ -975,8 +978,7 @@ func testInstallThirdPartyAPIDeleteVersion(t *testing.T, version string) {
 
 	expectedDeletedKey := etcdtest.AddPrefix("ThirdPartyResourceData/company.com/foos/default/test")
 	thirdPartyObj := extensions.ThirdPartyResourceData{}
-	err = master.thirdPartyStorage.Get(
+	err = s.Get(context.TODO(), expectedDeletedKey, &thirdPartyObj, false)
-		context.TODO(), expectedDeletedKey, &thirdPartyObj, false)
 	if !storage.IsNotFound(err) {
 		t.Errorf("expected deletion didn't happen: %v", err)
 	}
@@ -1044,13 +1046,14 @@ func testInstallThirdPartyResourceRemove(t *testing.T, version string) {
 		SomeField:  "test field",
 		OtherField: 10,
 	}
-	if !assert.NoError(createThirdPartyObject(master.thirdPartyStorage, "/ThirdPartyResourceData/company.com/foos/default/test", "test", expectedObj)) {
+	s := generic.NewRawStorage(master.thirdPartyStorageConfig)
+	if !assert.NoError(createThirdPartyObject(s, "/ThirdPartyResourceData/company.com/foos/default/test", "test", expectedObj)) {
 		t.FailNow()
 		return
 	}
 	secondObj := expectedObj
 	secondObj.Name = "bar"
-	if !assert.NoError(createThirdPartyObject(master.thirdPartyStorage, "/ThirdPartyResourceData/company.com/foos/default/bar", "bar", secondObj)) {
+	if !assert.NoError(createThirdPartyObject(s, "/ThirdPartyResourceData/company.com/foos/default/bar", "bar", secondObj)) {
 		t.FailNow()
 		return
 	}
@@ -1095,7 +1098,8 @@ func testInstallThirdPartyResourceRemove(t *testing.T, version string) {
 	}
 	for _, key := range expectedDeletedKeys {
 		thirdPartyObj := extensions.ThirdPartyResourceData{}
-		err := master.thirdPartyStorage.Get(context.TODO(), key, &thirdPartyObj, false)
+		s := generic.NewRawStorage(master.thirdPartyStorageConfig)
+		err := s.Get(context.TODO(), key, &thirdPartyObj, false)
 		if !storage.IsNotFound(err) {
 			t.Errorf("expected deletion didn't happen: %v", err)
 		}

pkg/registry/certificates/etcd/etcd.go

@@ -41,7 +41,7 @@ func NewREST(opts generic.RESTOptions) (*REST, *StatusREST, *ApprovalREST) {
 
 	newListFunc := func() runtime.Object { return &certificates.CertificateSigningRequestList{} }
 	storageInterface := opts.Decorator(
-		opts.Storage,
+		opts.StorageConfig,
 		cachesize.GetWatchCacheSizeByResource(cachesize.CertificateSigningRequests),
 		&certificates.CertificateSigningRequest{},
 		prefix,

pkg/registry/clusterrole/etcd/etcd.go

@@ -38,7 +38,7 @@ func NewREST(opts generic.RESTOptions) *REST {
 
 	newListFunc := func() runtime.Object { return &rbac.ClusterRoleList{} }
 	storageInterface := opts.Decorator(
-		opts.Storage,
+		opts.StorageConfig,
 		cachesize.GetWatchCacheSizeByResource(cachesize.ClusterRoles),
 		&rbac.ClusterRole{},
 		prefix,

pkg/registry/clusterrolebinding/etcd/etcd.go

@@ -38,7 +38,7 @@ func NewREST(opts generic.RESTOptions) *REST {
 
 	newListFunc := func() runtime.Object { return &rbac.ClusterRoleBindingList{} }
 	storageInterface := opts.Decorator(
-		opts.Storage,
+		opts.StorageConfig,
 		cachesize.GetWatchCacheSizeByResource(cachesize.ClusterRoleBindings),
 		&rbac.ClusterRoleBinding{},
 		prefix,

pkg/registry/configmap/etcd/etcd.go

@@ -37,7 +37,7 @@ func NewREST(opts generic.RESTOptions) *REST {
 
 	newListFunc := func() runtime.Object { return &api.ConfigMapList{} }
 	storageInterface := opts.Decorator(
-		opts.Storage,
+		opts.StorageConfig,
 		cachesize.GetWatchCacheSizeByResource(cachesize.ConfigMaps),
 		&api.ConfigMap{},
 		prefix,

pkg/registry/configmap/etcd/etcd_test.go

@@ -30,7 +30,7 @@ import (
 
 func newStorage(t *testing.T) (*REST, *etcdtesting.EtcdTestServer) {
 	etcdStorage, server := registrytest.NewEtcdStorage(t, "")
-	restOptions := generic.RESTOptions{Storage: etcdStorage, Decorator: generic.UndecoratedStorage, DeleteCollectionWorkers: 1}
+	restOptions := generic.RESTOptions{StorageConfig: etcdStorage, Decorator: generic.UndecoratedStorage, DeleteCollectionWorkers: 1}
 	return NewREST(restOptions), server
 }
 

pkg/registry/controller/etcd/etcd.go

@@ -63,7 +63,7 @@ func NewREST(opts generic.RESTOptions) (*REST, *StatusREST) {
 
 	newListFunc := func() runtime.Object { return &api.ReplicationControllerList{} }
 	storageInterface := opts.Decorator(
-		opts.Storage,
+		opts.StorageConfig,
 		cachesize.GetWatchCacheSizeByResource(cachesize.Controllers),
 		&api.ReplicationController{},
 		prefix,

pkg/registry/controller/etcd/etcd_test.go

@@ -39,7 +39,7 @@ const (
 
 func newStorage(t *testing.T) (ControllerStorage, *etcdtesting.EtcdTestServer) {
 	etcdStorage, server := registrytest.NewEtcdStorage(t, "")
-	restOptions := generic.RESTOptions{Storage: etcdStorage, Decorator: generic.UndecoratedStorage, DeleteCollectionWorkers: 1}
+	restOptions := generic.RESTOptions{StorageConfig: etcdStorage, Decorator: generic.UndecoratedStorage, DeleteCollectionWorkers: 1}
 	storage := NewStorage(restOptions)
 	return storage, server
 }

pkg/registry/daemonset/etcd/etcd.go

@@ -39,7 +39,7 @@ func NewREST(opts generic.RESTOptions) (*REST, *StatusREST) {
 
 	newListFunc := func() runtime.Object { return &extensions.DaemonSetList{} }
 	storageInterface := opts.Decorator(
-		opts.Storage,
+		opts.StorageConfig,
 		cachesize.GetWatchCacheSizeByResource(cachesize.Daemonsets),
 		&extensions.DaemonSet{},
 		prefix,

pkg/registry/daemonset/etcd/etcd_test.go

@@ -32,7 +32,7 @@ import (
 
 func newStorage(t *testing.T) (*REST, *StatusREST, *etcdtesting.EtcdTestServer) {
 	etcdStorage, server := registrytest.NewEtcdStorage(t, extensions.GroupName)
-	restOptions := generic.RESTOptions{Storage: etcdStorage, Decorator: generic.UndecoratedStorage, DeleteCollectionWorkers: 1}
+	restOptions := generic.RESTOptions{StorageConfig: etcdStorage, Decorator: generic.UndecoratedStorage, DeleteCollectionWorkers: 1}
 	daemonSetStorage, statusStorage := NewREST(restOptions)
 	return daemonSetStorage, statusStorage, server
 }

pkg/registry/deployment/etcd/etcd.go

@@ -63,7 +63,7 @@ func NewREST(opts generic.RESTOptions) (*REST, *StatusREST, *RollbackREST) {
 
 	newListFunc := func() runtime.Object { return &extensions.DeploymentList{} }
 	storageInterface := opts.Decorator(
-		opts.Storage,
+		opts.StorageConfig,
 		cachesize.GetWatchCacheSizeByResource(cachesize.Deployments),
 		&extensions.Deployment{},
 		prefix,

pkg/registry/deployment/etcd/etcd_test.go

@@ -41,7 +41,7 @@ const defaultReplicas = 100
 
 func newStorage(t *testing.T) (*DeploymentStorage, *etcdtesting.EtcdTestServer) {
 	etcdStorage, server := registrytest.NewEtcdStorage(t, extensions.GroupName)
-	restOptions := generic.RESTOptions{Storage: etcdStorage, Decorator: generic.UndecoratedStorage, DeleteCollectionWorkers: 1, ResourcePrefix: "deployments"}
+	restOptions := generic.RESTOptions{StorageConfig: etcdStorage, Decorator: generic.UndecoratedStorage, DeleteCollectionWorkers: 1, ResourcePrefix: "deployments"}
 	deploymentStorage := NewStorage(restOptions)
 	return &deploymentStorage, server
 }

pkg/registry/endpoint/etcd/etcd.go

@@ -36,7 +36,7 @@ func NewREST(opts generic.RESTOptions) *REST {
 
 	newListFunc := func() runtime.Object { return &api.EndpointsList{} }
 	storageInterface := opts.Decorator(
-		opts.Storage,
+		opts.StorageConfig,
 		cachesize.GetWatchCacheSizeByResource(cachesize.Endpoints),
 		&api.Endpoints{},
 		prefix,

pkg/registry/endpoint/etcd/etcd_test.go

@@ -30,7 +30,7 @@ import (
 
 func newStorage(t *testing.T) (*REST, *etcdtesting.EtcdTestServer) {
 	etcdStorage, server := registrytest.NewEtcdStorage(t, "")
-	restOptions := generic.RESTOptions{Storage: etcdStorage, Decorator: generic.UndecoratedStorage, DeleteCollectionWorkers: 1}
+	restOptions := generic.RESTOptions{StorageConfig: etcdStorage, Decorator: generic.UndecoratedStorage, DeleteCollectionWorkers: 1}
 	return NewREST(restOptions), server
 }
 

pkg/registry/event/etcd/etcd.go

@@ -34,7 +34,7 @@ func NewREST(opts generic.RESTOptions, ttl uint64) *REST {
 
 	// We explicitly do NOT do any decoration here - switching on Cacher
 	// for events will lead to too high memory consumption.
-	storageInterface := opts.Storage
+	storageInterface := generic.NewRawStorage(opts.StorageConfig)
 
 	store := &registry.Store{
 		NewFunc:     func() runtime.Object { return &api.Event{} },

pkg/registry/event/etcd/etcd_test.go

@@ -30,7 +30,7 @@ var testTTL uint64 = 60
 
 func newStorage(t *testing.T) (*REST, *etcdtesting.EtcdTestServer) {
 	etcdStorage, server := registrytest.NewEtcdStorage(t, "")
-	restOptions := generic.RESTOptions{Storage: etcdStorage, Decorator: generic.UndecoratedStorage, DeleteCollectionWorkers: 1}
+	restOptions := generic.RESTOptions{StorageConfig: etcdStorage, Decorator: generic.UndecoratedStorage, DeleteCollectionWorkers: 1}
 	return NewREST(restOptions, testTTL), server
 }
 

pkg/registry/experimental/controller/etcd/etcd_test.go

@@ -32,8 +32,8 @@ import (
 
 func newStorage(t *testing.T) (*ScaleREST, *etcdtesting.EtcdTestServer, storage.Interface) {
 	etcdStorage, server := registrytest.NewEtcdStorage(t, "")
-	restOptions := generic.RESTOptions{Storage: etcdStorage, Decorator: generic.UndecoratedStorage, DeleteCollectionWorkers: 1, ResourcePrefix: "controllers"}
+	restOptions := generic.RESTOptions{StorageConfig: etcdStorage, Decorator: generic.UndecoratedStorage, DeleteCollectionWorkers: 1, ResourcePrefix: "controllers"}
-	return NewStorage(restOptions).Scale, server, etcdStorage
+	return NewStorage(restOptions).Scale, server, generic.NewRawStorage(etcdStorage)
 }
 
 var validPodTemplate = api.PodTemplate{

pkg/registry/generic/options.go

@@ -16,13 +16,11 @@ limitations under the License.
 
 package generic
 
-import (
+import "k8s.io/kubernetes/pkg/storage/storagebackend"
-	pkgstorage "k8s.io/kubernetes/pkg/storage"
-)
 
 // RESTOptions is set of configuration options to generic registries.
 type RESTOptions struct {
-	Storage                 pkgstorage.Interface
+	StorageConfig           *storagebackend.Config
 	Decorator               StorageDecorator
 	DeleteCollectionWorkers int
 

pkg/registry/generic/registry/storage_factory.go

@@ -18,14 +18,16 @@ package registry
 
 import (
 	"k8s.io/kubernetes/pkg/api/rest"
+	"k8s.io/kubernetes/pkg/registry/generic"
 	"k8s.io/kubernetes/pkg/runtime"
 	"k8s.io/kubernetes/pkg/storage"
 	etcdstorage "k8s.io/kubernetes/pkg/storage/etcd"
+	"k8s.io/kubernetes/pkg/storage/storagebackend"
 )
 
-// Creates a cacher on top of the given 'storageInterface'.
+// Creates a cacher based given storageConfig.
 func StorageWithCacher(
-	storageInterface storage.Interface,
+	storageConfig *storagebackend.Config,
 	capacity int,
 	objectType runtime.Object,
 	resourcePrefix string,
@@ -33,9 +35,11 @@ func StorageWithCacher(
 	newListFunc func() runtime.Object,
 	triggerFunc storage.TriggerPublisherFunc) storage.Interface {
 
-	config := storage.CacherConfig{
+	// TODO: we would change this later to make storage always have cacher and hide low level KV layer inside.
+	// Currently it has two layers of same storage interface -- cacher and low level kv.
+	cacherConfig := storage.CacherConfig{
 		CacheCapacity:        capacity,
-		Storage:              storageInterface,
+		Storage:              generic.NewRawStorage(storageConfig),
 		Versioner:            etcdstorage.APIObjectVersioner{},
 		Type:                 objectType,
 		ResourcePrefix:       resourcePrefix,
@@ -43,14 +47,14 @@ func StorageWithCacher(
 		TriggerPublisherFunc: triggerFunc,
 	}
 	if scopeStrategy.NamespaceScoped() {
-		config.KeyFunc = func(obj runtime.Object) (string, error) {
+		cacherConfig.KeyFunc = func(obj runtime.Object) (string, error) {
 			return storage.NamespaceKeyFunc(resourcePrefix, obj)
 		}
 	} else {
-		config.KeyFunc = func(obj runtime.Object) (string, error) {
+		cacherConfig.KeyFunc = func(obj runtime.Object) (string, error) {
 			return storage.NoNamespaceKeyFunc(resourcePrefix, obj)
 		}
 	}
 
-	return storage.NewCacherFromConfig(config)
+	return storage.NewCacherFromConfig(cacherConfig)
 }

pkg/registry/generic/storage_decorator.go

@@ -17,15 +17,18 @@ limitations under the License.
 package generic
 
 import (
+	"github.com/golang/glog"
 	"k8s.io/kubernetes/pkg/api/rest"
 	"k8s.io/kubernetes/pkg/runtime"
 	"k8s.io/kubernetes/pkg/storage"
+	"k8s.io/kubernetes/pkg/storage/storagebackend"
+	"k8s.io/kubernetes/pkg/storage/storagebackend/factory"
 )
 
 // StorageDecorator is a function signature for producing
 // a storage.Interface from given parameters.
 type StorageDecorator func(
-	storageInterface storage.Interface,
+	config *storagebackend.Config,
 	capacity int,
 	objectType runtime.Object,
 	resourcePrefix string,
@@ -35,12 +38,23 @@ type StorageDecorator func(
 
 // Returns given 'storageInterface' without any decoration.
 func UndecoratedStorage(
-	storageInterface storage.Interface,
+	config *storagebackend.Config,
 	capacity int,
 	objectType runtime.Object,
 	resourcePrefix string,
 	scopeStrategy rest.NamespaceScopedStrategy,
 	newListFunc func() runtime.Object,
 	trigger storage.TriggerPublisherFunc) storage.Interface {
-	return storageInterface
+	return NewRawStorage(config)
+}
+
+// NewRawStorage creates the low level kv storage. This is a work-around for current
+// two layer of same storage interface.
+// TODO: Once cacher is enabled on all registries (event registry is special), we will remove this method.
+func NewRawStorage(config *storagebackend.Config) storage.Interface {
+	s, err := factory.Create(*config)
+	if err != nil {
+		glog.Fatalf("Unable to create storage backend: config (%v), err (%v)", config, err)
+	}
+	return s
 }

pkg/registry/horizontalpodautoscaler/etcd/etcd.go

@@ -38,7 +38,7 @@ func NewREST(opts generic.RESTOptions) (*REST, *StatusREST) {
 
 	newListFunc := func() runtime.Object { return &autoscaling.HorizontalPodAutoscalerList{} }
 	storageInterface := opts.Decorator(
-		opts.Storage,
+		opts.StorageConfig,
 		cachesize.GetWatchCacheSizeByResource(cachesize.HorizontalPodAutoscalers),
 		&autoscaling.HorizontalPodAutoscaler{},
 		prefix,

pkg/registry/horizontalpodautoscaler/etcd/etcd_test.go

@@ -33,7 +33,7 @@ import (
 
 func newStorage(t *testing.T) (*REST, *StatusREST, *etcdtesting.EtcdTestServer) {
 	etcdStorage, server := registrytest.NewEtcdStorage(t, autoscaling.GroupName)
-	restOptions := generic.RESTOptions{Storage: etcdStorage, Decorator: generic.UndecoratedStorage, DeleteCollectionWorkers: 1}
+	restOptions := generic.RESTOptions{StorageConfig: etcdStorage, Decorator: generic.UndecoratedStorage, DeleteCollectionWorkers: 1}
 	horizontalPodAutoscalerStorage, statusStorage := NewREST(restOptions)
 	return horizontalPodAutoscalerStorage, statusStorage, server
 }

pkg/registry/ingress/etcd/etcd.go

@@ -39,7 +39,7 @@ func NewREST(opts generic.RESTOptions) (*REST, *StatusREST) {
 
 	newListFunc := func() runtime.Object { return &extensions.IngressList{} }
 	storageInterface := opts.Decorator(
-		opts.Storage,
+		opts.StorageConfig,
 		cachesize.GetWatchCacheSizeByResource(cachesize.Ingress),
 		&extensions.Ingress{},
 		prefix,

pkg/registry/ingress/etcd/etcd_test.go

@@ -32,7 +32,7 @@ import (
 
 func newStorage(t *testing.T) (*REST, *StatusREST, *etcdtesting.EtcdTestServer) {
 	etcdStorage, server := registrytest.NewEtcdStorage(t, extensions.GroupName)
-	restOptions := generic.RESTOptions{Storage: etcdStorage, Decorator: generic.UndecoratedStorage, DeleteCollectionWorkers: 1}
+	restOptions := generic.RESTOptions{StorageConfig: etcdStorage, Decorator: generic.UndecoratedStorage, DeleteCollectionWorkers: 1}
 	ingressStorage, statusStorage := NewREST(restOptions)
 	return ingressStorage, statusStorage, server
 }

pkg/registry/job/etcd/etcd.go

@@ -39,7 +39,7 @@ func NewREST(opts generic.RESTOptions) (*REST, *StatusREST) {
 
 	newListFunc := func() runtime.Object { return &batch.JobList{} }
 	storageInterface := opts.Decorator(
-		opts.Storage,
+		opts.StorageConfig,
 		cachesize.GetWatchCacheSizeByResource(cachesize.Jobs),
 		&batch.Job{},
 		prefix,

pkg/registry/job/etcd/etcd_test.go

@@ -33,7 +33,7 @@ import (
 
 func newStorage(t *testing.T) (*REST, *StatusREST, *etcdtesting.EtcdTestServer) {
 	etcdStorage, server := registrytest.NewEtcdStorage(t, extensions.GroupName)
-	restOptions := generic.RESTOptions{Storage: etcdStorage, Decorator: generic.UndecoratedStorage, DeleteCollectionWorkers: 1}
+	restOptions := generic.RESTOptions{StorageConfig: etcdStorage, Decorator: generic.UndecoratedStorage, DeleteCollectionWorkers: 1}
 	jobStorage, statusStorage := NewREST(restOptions)
 	return jobStorage, statusStorage, server
 }

pkg/registry/limitrange/etcd/etcd.go

@@ -36,7 +36,7 @@ func NewREST(opts generic.RESTOptions) *REST {
 
 	newListFunc := func() runtime.Object { return &api.LimitRangeList{} }
 	storageInterface := opts.Decorator(
-		opts.Storage,
+		opts.StorageConfig,
 		cachesize.GetWatchCacheSizeByResource(cachesize.LimitRanges),
 		&api.LimitRange{},
 		prefix,

pkg/registry/limitrange/etcd/etcd_test.go

@@ -31,7 +31,7 @@ import (
 
 func newStorage(t *testing.T) (*REST, *etcdtesting.EtcdTestServer) {
 	etcdStorage, server := registrytest.NewEtcdStorage(t, "")
-	restOptions := generic.RESTOptions{Storage: etcdStorage, Decorator: generic.UndecoratedStorage, DeleteCollectionWorkers: 1}
+	restOptions := generic.RESTOptions{StorageConfig: etcdStorage, Decorator: generic.UndecoratedStorage, DeleteCollectionWorkers: 1}
 	return NewREST(restOptions), server
 }
 

pkg/registry/namespace/etcd/etcd.go

@@ -54,7 +54,7 @@ func NewREST(opts generic.RESTOptions) (*REST, *StatusREST, *FinalizeREST) {
 
 	newListFunc := func() runtime.Object { return &api.NamespaceList{} }
 	storageInterface := opts.Decorator(
-		opts.Storage,
+		opts.StorageConfig,
 		cachesize.GetWatchCacheSizeByResource(cachesize.Namespaces),
 		&api.Namespace{},
 		prefix,

pkg/registry/namespace/etcd/etcd_test.go

@@ -31,7 +31,7 @@ import (
 
 func newStorage(t *testing.T) (*REST, *etcdtesting.EtcdTestServer) {
 	etcdStorage, server := registrytest.NewEtcdStorage(t, "")
-	restOptions := generic.RESTOptions{Storage: etcdStorage, Decorator: generic.UndecoratedStorage, DeleteCollectionWorkers: 1, ResourcePrefix: "namespaces"}
+	restOptions := generic.RESTOptions{StorageConfig: etcdStorage, Decorator: generic.UndecoratedStorage, DeleteCollectionWorkers: 1, ResourcePrefix: "namespaces"}
 	namespaceStorage, _, _ := NewREST(restOptions)
 	return namespaceStorage, server
 }

pkg/registry/networkpolicy/etcd/etcd.go

@@ -38,7 +38,7 @@ func NewREST(opts generic.RESTOptions) *REST {
 
 	newListFunc := func() runtime.Object { return &extensionsapi.NetworkPolicyList{} }
 	storageInterface := opts.Decorator(
-		opts.Storage,
+		opts.StorageConfig,
 		cachesize.GetWatchCacheSizeByResource(cachesize.NetworkPolicys),
 		&extensionsapi.NetworkPolicy{},
 		prefix,

pkg/registry/networkpolicy/etcd/etcd_test.go

@@ -33,7 +33,7 @@ import (
 
 func newStorage(t *testing.T) (*REST, *etcdtesting.EtcdTestServer) {
 	etcdStorage, server := registrytest.NewEtcdStorage(t, "extensions")
-	restOptions := generic.RESTOptions{Storage: etcdStorage, Decorator: generic.UndecoratedStorage, DeleteCollectionWorkers: 1}
+	restOptions := generic.RESTOptions{StorageConfig: etcdStorage, Decorator: generic.UndecoratedStorage, DeleteCollectionWorkers: 1}
 	return NewREST(restOptions), server
 }
 

pkg/registry/node/etcd/etcd.go

@@ -70,7 +70,7 @@ func NewStorage(opts generic.RESTOptions, connection client.ConnectionInfoGetter
 
 	newListFunc := func() runtime.Object { return &api.NodeList{} }
 	storageInterface := opts.Decorator(
-		opts.Storage,
+		opts.StorageConfig,
 		cachesize.GetWatchCacheSizeByResource(cachesize.Nodes),
 		&api.Node{},
 		prefix,

pkg/registry/node/etcd/etcd_test.go

@@ -39,7 +39,7 @@ func (fakeConnectionInfoGetter) GetConnectionInfo(ctx api.Context, nodeName stri
 
 func newStorage(t *testing.T) (*REST, *etcdtesting.EtcdTestServer) {
 	etcdStorage, server := registrytest.NewEtcdStorage(t, "")
-	restOptions := generic.RESTOptions{Storage: etcdStorage, Decorator: generic.UndecoratedStorage, DeleteCollectionWorkers: 1}
+	restOptions := generic.RESTOptions{StorageConfig: etcdStorage, Decorator: generic.UndecoratedStorage, DeleteCollectionWorkers: 1}
 	storage := NewStorage(restOptions, fakeConnectionInfoGetter{}, nil)
 	return storage.Node, server
 }

pkg/registry/persistentvolume/etcd/etcd.go

@@ -37,7 +37,7 @@ func NewREST(opts generic.RESTOptions) (*REST, *StatusREST) {
 
 	newListFunc := func() runtime.Object { return &api.PersistentVolumeList{} }
 	storageInterface := opts.Decorator(
-		opts.Storage,
+		opts.StorageConfig,
 		cachesize.GetWatchCacheSizeByResource(cachesize.PersistentVolumes),
 		&api.PersistentVolume{},
 		prefix,

pkg/registry/persistentvolume/etcd/etcd_test.go

@@ -34,7 +34,7 @@ import (
 
 func newStorage(t *testing.T) (*REST, *StatusREST, *etcdtesting.EtcdTestServer) {
 	etcdStorage, server := registrytest.NewEtcdStorage(t, "")
-	restOptions := generic.RESTOptions{Storage: etcdStorage, Decorator: generic.UndecoratedStorage, DeleteCollectionWorkers: 1}
+	restOptions := generic.RESTOptions{StorageConfig: etcdStorage, Decorator: generic.UndecoratedStorage, DeleteCollectionWorkers: 1}
 	persistentVolumeStorage, statusStorage := NewREST(restOptions)
 	return persistentVolumeStorage, statusStorage, server
 }

pkg/registry/persistentvolumeclaim/etcd/etcd.go

@@ -37,7 +37,7 @@ func NewREST(opts generic.RESTOptions) (*REST, *StatusREST) {
 
 	newListFunc := func() runtime.Object { return &api.PersistentVolumeClaimList{} }
 	storageInterface := opts.Decorator(
-		opts.Storage,
+		opts.StorageConfig,
 		cachesize.GetWatchCacheSizeByResource(cachesize.PersistentVolumeClaims),
 		&api.PersistentVolumeClaim{},
 		prefix,

pkg/registry/persistentvolumeclaim/etcd/etcd_test.go

@@ -34,7 +34,7 @@ import (
 
 func newStorage(t *testing.T) (*REST, *StatusREST, *etcdtesting.EtcdTestServer) {
 	etcdStorage, server := registrytest.NewEtcdStorage(t, "")
-	restOptions := generic.RESTOptions{Storage: etcdStorage, Decorator: generic.UndecoratedStorage, DeleteCollectionWorkers: 1}
+	restOptions := generic.RESTOptions{StorageConfig: etcdStorage, Decorator: generic.UndecoratedStorage, DeleteCollectionWorkers: 1}
 	persistentVolumeClaimStorage, statusStorage := NewREST(restOptions)
 	return persistentVolumeClaimStorage, statusStorage, server
 }

pkg/registry/petset/etcd/etcd.go

@@ -39,7 +39,7 @@ func NewREST(opts generic.RESTOptions) (*REST, *StatusREST) {
 
 	newListFunc := func() runtime.Object { return &appsapi.PetSetList{} }
 	storageInterface := opts.Decorator(
-		opts.Storage,
+		opts.StorageConfig,
 		cachesize.GetWatchCacheSizeByResource(cachesize.PetSet),
 		&appsapi.PetSet{},
 		prefix,

pkg/registry/petset/etcd/etcd_test.go

@@ -33,7 +33,7 @@ import (
 
 func newStorage(t *testing.T) (*REST, *StatusREST, *etcdtesting.EtcdTestServer) {
 	etcdStorage, server := registrytest.NewEtcdStorage(t, apps.GroupName)
-	restOptions := generic.RESTOptions{Storage: etcdStorage, Decorator: generic.UndecoratedStorage, DeleteCollectionWorkers: 1, ResourcePrefix: "petsets"}
+	restOptions := generic.RESTOptions{StorageConfig: etcdStorage, Decorator: generic.UndecoratedStorage, DeleteCollectionWorkers: 1, ResourcePrefix: "petsets"}
 	petSetStorage, statusStorage := NewREST(restOptions)
 	return petSetStorage, statusStorage, server
 }

pkg/registry/pod/etcd/etcd.go

@@ -61,7 +61,7 @@ func NewStorage(opts generic.RESTOptions, k client.ConnectionInfoGetter, proxyTr
 
 	newListFunc := func() runtime.Object { return &api.PodList{} }
 	storageInterface := opts.Decorator(
-		opts.Storage,
+		opts.StorageConfig,
 		cachesize.GetWatchCacheSizeByResource(cachesize.Pods),
 		&api.Pod{},
 		prefix,

pkg/registry/pod/etcd/etcd_test.go

@@ -39,7 +39,7 @@ import (
 
 func newStorage(t *testing.T) (*REST, *BindingREST, *StatusREST, *etcdtesting.EtcdTestServer) {
 	etcdStorage, server := registrytest.NewEtcdStorage(t, "")
-	restOptions := generic.RESTOptions{Storage: etcdStorage, Decorator: generic.UndecoratedStorage, DeleteCollectionWorkers: 3}
+	restOptions := generic.RESTOptions{StorageConfig: etcdStorage, Decorator: generic.UndecoratedStorage, DeleteCollectionWorkers: 3}
 	storage := NewStorage(restOptions, nil, nil)
 	return storage.Pod, storage.Binding, storage.Status, server
 }
@@ -144,9 +144,9 @@ func (f FailDeletionStorage) Delete(ctx context.Context, key string, out runtime
 
 func newFailDeleteStorage(t *testing.T, called *bool) (*REST, *etcdtesting.EtcdTestServer) {
 	etcdStorage, server := registrytest.NewEtcdStorage(t, "")
-	failDeleteStorage := FailDeletionStorage{etcdStorage, called}
+	restOptions := generic.RESTOptions{StorageConfig: etcdStorage, Decorator: generic.UndecoratedStorage, DeleteCollectionWorkers: 3}
-	restOptions := generic.RESTOptions{Storage: failDeleteStorage, Decorator: generic.UndecoratedStorage, DeleteCollectionWorkers: 3}
 	storage := NewStorage(restOptions, nil, nil)
+	storage.Pod.Store.Storage = FailDeletionStorage{storage.Pod.Store.Storage, called}
 	return storage.Pod, server
 }
 

pkg/registry/pod/rest/log_test.go

@@ -21,6 +21,7 @@ import (
 
 	"k8s.io/kubernetes/pkg/api"
 	"k8s.io/kubernetes/pkg/api/errors"
+	"k8s.io/kubernetes/pkg/registry/generic"
 	"k8s.io/kubernetes/pkg/registry/generic/registry"
 	"k8s.io/kubernetes/pkg/registry/registrytest"
 )
@@ -28,7 +29,7 @@ import (
 func TestPodLogValidates(t *testing.T) {
 	etcdStorage, _ := registrytest.NewEtcdStorage(t, "")
 	store := &registry.Store{
-		Storage: etcdStorage,
+		Storage: generic.NewRawStorage(etcdStorage),
 	}
 	logRest := &LogREST{Store: store, KubeletConn: nil}
 

pkg/registry/poddisruptionbudget/etcd/etcd.go

@@ -39,7 +39,7 @@ func NewREST(opts generic.RESTOptions) (*REST, *StatusREST) {
 
 	newListFunc := func() runtime.Object { return &policyapi.PodDisruptionBudgetList{} }
 	storageInterface := opts.Decorator(
-		opts.Storage,
+		opts.StorageConfig,
 		cachesize.GetWatchCacheSizeByResource(cachesize.PodDisruptionBudget),
 		&policyapi.PodDisruptionBudget{},
 		prefix,

pkg/registry/poddisruptionbudget/etcd/etcd_test.go

@@ -34,7 +34,7 @@ import (
 
 func newStorage(t *testing.T) (*REST, *StatusREST, *etcdtesting.EtcdTestServer) {
 	etcdStorage, server := registrytest.NewEtcdStorage(t, policy.GroupName)
-	restOptions := generic.RESTOptions{Storage: etcdStorage, Decorator: generic.UndecoratedStorage, DeleteCollectionWorkers: 1, ResourcePrefix: "poddisruptionbudgets"}
+	restOptions := generic.RESTOptions{StorageConfig: etcdStorage, Decorator: generic.UndecoratedStorage, DeleteCollectionWorkers: 1, ResourcePrefix: "poddisruptionbudgets"}
 	podDisruptionBudgetStorage, statusStorage := NewREST(restOptions)
 	return podDisruptionBudgetStorage, statusStorage, server
 }

pkg/registry/podsecuritypolicy/etcd/etcd.go

@@ -38,7 +38,7 @@ func NewREST(opts generic.RESTOptions) *REST {
 
 	newListFunc := func() runtime.Object { return &extensions.PodSecurityPolicyList{} }
 	storageInterface := opts.Decorator(
-		opts.Storage,
+		opts.StorageConfig,
 		cachesize.GetWatchCacheSizeByResource(cachesize.PodSecurityPolicies),
 		&extensions.PodSecurityPolicy{},
 		prefix,

pkg/registry/podsecuritypolicy/etcd/etcd_test.go

@@ -33,7 +33,7 @@ import (
 
 func newStorage(t *testing.T) (*REST, *etcdtesting.EtcdTestServer) {
 	etcdStorage, server := registrytest.NewEtcdStorage(t, "extensions")
-	restOptions := generic.RESTOptions{Storage: etcdStorage, Decorator: generic.UndecoratedStorage, DeleteCollectionWorkers: 1}
+	restOptions := generic.RESTOptions{StorageConfig: etcdStorage, Decorator: generic.UndecoratedStorage, DeleteCollectionWorkers: 1}
 	return NewREST(restOptions), server
 }
 

pkg/registry/podtemplate/etcd/etcd.go

@@ -36,7 +36,7 @@ func NewREST(opts generic.RESTOptions) *REST {
 
 	newListFunc := func() runtime.Object { return &api.PodTemplateList{} }
 	storageInterface := opts.Decorator(
-		opts.Storage,
+		opts.StorageConfig,
 		cachesize.GetWatchCacheSizeByResource(cachesize.PodTemplates),
 		&api.PodTemplate{},
 		prefix,

pkg/registry/podtemplate/etcd/etcd_test.go

@@ -30,7 +30,7 @@ import (
 
 func newStorage(t *testing.T) (*REST, *etcdtesting.EtcdTestServer) {
 	etcdStorage, server := registrytest.NewEtcdStorage(t, "")
-	restOptions := generic.RESTOptions{Storage: etcdStorage, Decorator: generic.UndecoratedStorage, DeleteCollectionWorkers: 1}
+	restOptions := generic.RESTOptions{StorageConfig: etcdStorage, Decorator: generic.UndecoratedStorage, DeleteCollectionWorkers: 1}
 	return NewREST(restOptions), server
 }
 

pkg/registry/registrytest/etcd.go

@@ -29,17 +29,23 @@ import (
 	"k8s.io/kubernetes/pkg/labels"
 	"k8s.io/kubernetes/pkg/registry/generic/registry"
 	"k8s.io/kubernetes/pkg/runtime"
-	"k8s.io/kubernetes/pkg/storage"
 	etcdstorage "k8s.io/kubernetes/pkg/storage/etcd"
 	"k8s.io/kubernetes/pkg/storage/etcd/etcdtest"
 	etcdtesting "k8s.io/kubernetes/pkg/storage/etcd/testing"
+	"k8s.io/kubernetes/pkg/storage/storagebackend"
 	storagetesting "k8s.io/kubernetes/pkg/storage/testing"
 )
 
-func NewEtcdStorage(t *testing.T, group string) (storage.Interface, *etcdtesting.EtcdTestServer) {
+func NewEtcdStorage(t *testing.T, group string) (*storagebackend.Config, *etcdtesting.EtcdTestServer) {
 	server := etcdtesting.NewUnsecuredEtcdTestClientServer(t)
-	storage := etcdstorage.NewEtcdStorage(server.Client, testapi.Groups[group].StorageCodec(), etcdtest.PathPrefix(), false, etcdtest.DeserializationCacheSize)
+	config := &storagebackend.Config{
-	return storage, server
+		Type:                     "etcd2",
+		Prefix:                   etcdtest.PathPrefix(),
+		ServerList:               server.Client.Endpoints(),
+		DeserializationCacheSize: etcdtest.DeserializationCacheSize,
+		Codec: testapi.Groups[group].StorageCodec(),
+	}
+	return config, server
 }
 
 type Tester struct {

pkg/registry/replicaset/etcd/etcd.go

@@ -62,7 +62,7 @@ func NewREST(opts generic.RESTOptions) (*REST, *StatusREST) {
 
 	newListFunc := func() runtime.Object { return &extensions.ReplicaSetList{} }
 	storageInterface := opts.Decorator(
-		opts.Storage,
+		opts.StorageConfig,
 		cachesize.GetWatchCacheSizeByResource(cachesize.Replicasets),
 		&extensions.ReplicaSet{},
 		prefix,

pkg/registry/replicaset/etcd/etcd_test.go

@@ -38,7 +38,7 @@ const defaultReplicas = 100
 
 func newStorage(t *testing.T) (*ReplicaSetStorage, *etcdtesting.EtcdTestServer) {
 	etcdStorage, server := registrytest.NewEtcdStorage(t, "extensions")
-	restOptions := generic.RESTOptions{Storage: etcdStorage, Decorator: generic.UndecoratedStorage, DeleteCollectionWorkers: 1, ResourcePrefix: "replicasets"}
+	restOptions := generic.RESTOptions{StorageConfig: etcdStorage, Decorator: generic.UndecoratedStorage, DeleteCollectionWorkers: 1, ResourcePrefix: "replicasets"}
 	replicaSetStorage := NewStorage(restOptions)
 	return &replicaSetStorage, server
 }

pkg/registry/resourcequota/etcd/etcd.go

@@ -37,7 +37,7 @@ func NewREST(opts generic.RESTOptions) (*REST, *StatusREST) {
 
 	newListFunc := func() runtime.Object { return &api.ResourceQuotaList{} }
 	storageInterface := opts.Decorator(
-		opts.Storage,
+		opts.StorageConfig,
 		cachesize.GetWatchCacheSizeByResource(cachesize.ResourceQuotas),
 		&api.ResourceQuota{},
 		prefix,

pkg/registry/resourcequota/etcd/etcd_test.go

@@ -33,7 +33,7 @@ import (
 
 func newStorage(t *testing.T) (*REST, *StatusREST, *etcdtesting.EtcdTestServer) {
 	etcdStorage, server := registrytest.NewEtcdStorage(t, "")
-	restOptions := generic.RESTOptions{Storage: etcdStorage, Decorator: generic.UndecoratedStorage, DeleteCollectionWorkers: 1}
+	restOptions := generic.RESTOptions{StorageConfig: etcdStorage, Decorator: generic.UndecoratedStorage, DeleteCollectionWorkers: 1}
 	resourceQuotaStorage, statusStorage := NewREST(restOptions)
 	return resourceQuotaStorage, statusStorage, server
 }

pkg/registry/role/etcd/etcd.go

@@ -38,7 +38,7 @@ func NewREST(opts generic.RESTOptions) *REST {
 
 	newListFunc := func() runtime.Object { return &rbac.RoleList{} }
 	storageInterface := opts.Decorator(
-		opts.Storage,
+		opts.StorageConfig,
 		cachesize.GetWatchCacheSizeByResource(cachesize.Roles),
 		&rbac.Role{},
 		prefix,

pkg/registry/rolebinding/etcd/etcd.go

@@ -38,7 +38,7 @@ func NewREST(opts generic.RESTOptions) *REST {
 
 	newListFunc := func() runtime.Object { return &rbac.RoleBindingList{} }
 	storageInterface := opts.Decorator(
-		opts.Storage,
+		opts.StorageConfig,
 		cachesize.GetWatchCacheSizeByResource(cachesize.RoleBindings),
 		&rbac.RoleBinding{},
 		prefix,

pkg/registry/scheduledjob/etcd/etcd.go

@@ -39,7 +39,7 @@ func NewREST(opts generic.RESTOptions) (*REST, *StatusREST) {
 
 	newListFunc := func() runtime.Object { return &batch.ScheduledJobList{} }
 	storageInterface := opts.Decorator(
-		opts.Storage,
+		opts.StorageConfig,
 		cachesize.GetWatchCacheSizeByResource(cachesize.ScheduledJobs),
 		&batch.ScheduledJob{},
 		prefix,

pkg/registry/scheduledjob/etcd/etcd_test.go

@@ -33,7 +33,7 @@ import (
 
 func newStorage(t *testing.T) (*REST, *StatusREST, *etcdtesting.EtcdTestServer) {
 	etcdStorage, server := registrytest.NewEtcdStorage(t, batch.GroupName)
-	restOptions := generic.RESTOptions{Storage: etcdStorage, Decorator: generic.UndecoratedStorage, DeleteCollectionWorkers: 1}
+	restOptions := generic.RESTOptions{StorageConfig: etcdStorage, Decorator: generic.UndecoratedStorage, DeleteCollectionWorkers: 1}
 	storage, statusStorage := NewREST(restOptions)
 	return storage, statusStorage, server
 }

pkg/registry/secret/etcd/etcd.go

@@ -36,7 +36,7 @@ func NewREST(opts generic.RESTOptions) *REST {
 
 	newListFunc := func() runtime.Object { return &api.SecretList{} }
 	storageInterface := opts.Decorator(
-		opts.Storage,
+		opts.StorageConfig,
 		cachesize.GetWatchCacheSizeByResource(cachesize.Secrets),
 		&api.Secret{},
 		prefix,

pkg/registry/secret/etcd/etcd_test.go

@@ -30,7 +30,7 @@ import (
 
 func newStorage(t *testing.T) (*REST, *etcdtesting.EtcdTestServer) {
 	etcdStorage, server := registrytest.NewEtcdStorage(t, "")
-	restOptions := generic.RESTOptions{Storage: etcdStorage, Decorator: generic.UndecoratedStorage, DeleteCollectionWorkers: 1}
+	restOptions := generic.RESTOptions{StorageConfig: etcdStorage, Decorator: generic.UndecoratedStorage, DeleteCollectionWorkers: 1}
 	return NewREST(restOptions), server
 }
 

pkg/registry/service/allocator/etcd/etcd.go

@@ -25,10 +25,12 @@ import (
 	k8serr "k8s.io/kubernetes/pkg/api/errors"
 	storeerr "k8s.io/kubernetes/pkg/api/errors/storage"
 	"k8s.io/kubernetes/pkg/api/unversioned"
+	"k8s.io/kubernetes/pkg/registry/generic"
 	"k8s.io/kubernetes/pkg/registry/rangeallocation"
 	"k8s.io/kubernetes/pkg/registry/service/allocator"
 	"k8s.io/kubernetes/pkg/runtime"
 	"k8s.io/kubernetes/pkg/storage"
+	"k8s.io/kubernetes/pkg/storage/storagebackend"
 
 	"golang.org/x/net/context"
 )
@@ -58,7 +60,8 @@ var _ rangeallocation.RangeRegistry = &Etcd{}
 
 // NewEtcd returns an allocator that is backed by Etcd and can manage
 // persisting the snapshot state of allocation after each allocation is made.
-func NewEtcd(alloc allocator.Snapshottable, baseKey string, resource unversioned.GroupResource, storage storage.Interface) *Etcd {
+func NewEtcd(alloc allocator.Snapshottable, baseKey string, resource unversioned.GroupResource, config *storagebackend.Config) *Etcd {
+	storage := generic.NewRawStorage(config)
 	return &Etcd{
 		alloc:    alloc,
 		storage:  storage,

pkg/registry/service/allocator/etcd/etcd_test.go

@@ -25,15 +25,16 @@ import (
 	"k8s.io/kubernetes/pkg/registry/service/allocator"
 	"k8s.io/kubernetes/pkg/storage/etcd/etcdtest"
 	etcdtesting "k8s.io/kubernetes/pkg/storage/etcd/testing"
+	"k8s.io/kubernetes/pkg/storage/storagebackend"
 
 	"golang.org/x/net/context"
 )
 
-func newStorage(t *testing.T) (*Etcd, *etcdtesting.EtcdTestServer, allocator.Interface) {
+func newStorage(t *testing.T) (*Etcd, *etcdtesting.EtcdTestServer, allocator.Interface, *storagebackend.Config) {
 	etcdStorage, server := registrytest.NewEtcdStorage(t, "")
 	mem := allocator.NewAllocationMap(100, "rangeSpecValue")
 	etcd := NewEtcd(mem, "/ranges/serviceips", api.Resource("serviceipallocations"), etcdStorage)
-	return etcd, server, mem
+	return etcd, server, mem, etcdStorage
 }
 
 func validNewRangeAllocation() *api.RangeAllocation {
@@ -48,7 +49,7 @@ func key() string {
 }
 
 func TestEmpty(t *testing.T) {
-	storage, server, _ := newStorage(t)
+	storage, server, _, _ := newStorage(t)
 	defer server.Terminate(t)
 	if _, err := storage.Allocate(1); !strings.Contains(err.Error(), "cannot allocate resources of type serviceipallocations at this time") {
 		t.Fatal(err)
@@ -56,7 +57,7 @@ func TestEmpty(t *testing.T) {
 }
 
 func TestStore(t *testing.T) {
-	storage, server, backing := newStorage(t)
+	storage, server, backing, config := newStorage(t)
 	defer server.Terminate(t)
 	if err := storage.storage.Create(context.TODO(), key(), validNewRangeAllocation(), nil, 0); err != nil {
 		t.Fatalf("unexpected error: %v", err)
@@ -93,7 +94,7 @@ func TestStore(t *testing.T) {
 	}
 
 	other = allocator.NewAllocationMap(100, "rangeSpecValue")
-	otherStorage := NewEtcd(other, "/ranges/serviceips", api.Resource("serviceipallocations"), storage.storage)
+	otherStorage := NewEtcd(other, "/ranges/serviceips", api.Resource("serviceipallocations"), config)
 	if ok, err := otherStorage.Allocate(2); ok || err != nil {
 		t.Fatal(err)
 	}

pkg/registry/service/etcd/etcd.go

@@ -37,7 +37,7 @@ func NewREST(opts generic.RESTOptions) (*REST, *StatusREST) {
 
 	newListFunc := func() runtime.Object { return &api.ServiceList{} }
 	storageInterface := opts.Decorator(
-		opts.Storage,
+		opts.StorageConfig,
 		cachesize.GetWatchCacheSizeByResource(cachesize.Services),
 		&api.Service{},
 		prefix,

pkg/registry/service/etcd/etcd_test.go

@@ -31,7 +31,7 @@ import (
 
 func newStorage(t *testing.T) (*REST, *StatusREST, *etcdtesting.EtcdTestServer) {
 	etcdStorage, server := registrytest.NewEtcdStorage(t, "")
-	restOptions := generic.RESTOptions{Storage: etcdStorage, Decorator: generic.UndecoratedStorage, DeleteCollectionWorkers: 1}
+	restOptions := generic.RESTOptions{StorageConfig: etcdStorage, Decorator: generic.UndecoratedStorage, DeleteCollectionWorkers: 1}
 	serviceStorage, statusStorage := NewREST(restOptions)
 	return serviceStorage, statusStorage, server
 }

pkg/registry/service/ipallocator/etcd/etcd_test.go

@@ -22,6 +22,7 @@ import (
 	"testing"
 
 	"k8s.io/kubernetes/pkg/api"
+	"k8s.io/kubernetes/pkg/registry/generic"
 	"k8s.io/kubernetes/pkg/registry/registrytest"
 	"k8s.io/kubernetes/pkg/registry/service/allocator"
 	allocatoretcd "k8s.io/kubernetes/pkg/registry/service/allocator/etcd"
@@ -48,7 +49,7 @@ func newStorage(t *testing.T) (*etcdtesting.EtcdTestServer, ipallocator.Interfac
 		return etcd
 	})
 
-	return server, storage, backing, etcdStorage
+	return server, storage, backing, generic.NewRawStorage(etcdStorage)
 }
 
 func validNewRangeAllocation() *api.RangeAllocation {

pkg/registry/serviceaccount/etcd/etcd.go

@@ -36,7 +36,7 @@ func NewREST(opts generic.RESTOptions) *REST {
 
 	newListFunc := func() runtime.Object { return &api.ServiceAccountList{} }
 	storageInterface := opts.Decorator(
-		opts.Storage,
+		opts.StorageConfig,
 		cachesize.GetWatchCacheSizeByResource(cachesize.ServiceAccounts),
 		&api.ServiceAccount{},
 		prefix,

pkg/registry/serviceaccount/etcd/etcd_test.go

@@ -30,7 +30,7 @@ import (
 
 func newStorage(t *testing.T) (*REST, *etcdtesting.EtcdTestServer) {
 	etcdStorage, server := registrytest.NewEtcdStorage(t, "")
-	restOptions := generic.RESTOptions{Storage: etcdStorage, Decorator: generic.UndecoratedStorage, DeleteCollectionWorkers: 1}
+	restOptions := generic.RESTOptions{StorageConfig: etcdStorage, Decorator: generic.UndecoratedStorage, DeleteCollectionWorkers: 1}
 	return NewREST(restOptions), server
 }
 

pkg/registry/storageclass/etcd/etcd.go

@@ -37,7 +37,7 @@ func NewREST(opts generic.RESTOptions) *REST {
 
 	newListFunc := func() runtime.Object { return &extensions.StorageClassList{} }
 	storageInterface := opts.Decorator(
-		opts.Storage,
+		opts.StorageConfig,
 		cachesize.GetWatchCacheSizeByResource(cachesize.StorageClasses),
 		&extensions.StorageClass{},
 		prefix,

pkg/registry/storageclass/etcd/etcd_test.go

@@ -31,7 +31,7 @@ import (
 
 func newStorage(t *testing.T) (*REST, *etcdtesting.EtcdTestServer) {
 	etcdStorage, server := registrytest.NewEtcdStorage(t, extensions.GroupName)
-	restOptions := generic.RESTOptions{Storage: etcdStorage, Decorator: generic.UndecoratedStorage, DeleteCollectionWorkers: 1}
+	restOptions := generic.RESTOptions{StorageConfig: etcdStorage, Decorator: generic.UndecoratedStorage, DeleteCollectionWorkers: 1}
 	storageClassStorage := NewREST(restOptions)
 	return storageClassStorage, server
 }

pkg/registry/thirdpartyresource/etcd/etcd.go

@@ -35,7 +35,7 @@ func NewREST(opts generic.RESTOptions) *REST {
 	prefix := "/" + opts.ResourcePrefix
 
 	// We explicitly do NOT do any decoration here yet.
-	storageInterface := opts.Storage
+	storageInterface := generic.NewRawStorage(opts.StorageConfig)
 
 	store := &registry.Store{
 		NewFunc:     func() runtime.Object { return &extensions.ThirdPartyResource{} },

pkg/registry/thirdpartyresource/etcd/etcd_test.go

@@ -34,7 +34,7 @@ import (
 
 func newStorage(t *testing.T) (*REST, *etcdtesting.EtcdTestServer) {
 	etcdStorage, server := registrytest.NewEtcdStorage(t, extensions.GroupName)
-	restOptions := generic.RESTOptions{Storage: etcdStorage, Decorator: generic.UndecoratedStorage, DeleteCollectionWorkers: 1}
+	restOptions := generic.RESTOptions{StorageConfig: etcdStorage, Decorator: generic.UndecoratedStorage, DeleteCollectionWorkers: 1}
 	return NewREST(restOptions), server
 }
 

pkg/registry/thirdpartyresourcedata/etcd/etcd.go

@@ -38,7 +38,7 @@ func NewREST(opts generic.RESTOptions, group, kind string) *REST {
 	prefix := "/ThirdPartyResourceData/" + group + "/" + strings.ToLower(kind) + "s"
 
 	// We explicitly do NOT do any decoration here yet.
-	storageInterface := opts.Storage
+	storageInterface := generic.NewRawStorage(opts.StorageConfig)
 
 	store := &registry.Store{
 		NewFunc:     func() runtime.Object { return &extensions.ThirdPartyResourceData{} },

pkg/registry/thirdpartyresourcedata/etcd/etcd_test.go

@@ -33,7 +33,7 @@ import (
 
 func newStorage(t *testing.T) (*REST, *etcdtesting.EtcdTestServer) {
 	etcdStorage, server := registrytest.NewEtcdStorage(t, extensions.GroupName)
-	restOptions := generic.RESTOptions{Storage: etcdStorage, Decorator: generic.UndecoratedStorage, DeleteCollectionWorkers: 1}
+	restOptions := generic.RESTOptions{StorageConfig: etcdStorage, Decorator: generic.UndecoratedStorage, DeleteCollectionWorkers: 1}
 	return NewREST(restOptions, "foo", "bar"), server
 }
 

pkg/storage/storagebackend/config.go

@@ -16,6 +16,8 @@ limitations under the License.
 
 package storagebackend
 
+import "k8s.io/kubernetes/pkg/runtime"
+
 const (
 	StorageTypeUnset = ""
 	StorageTypeETCD2 = "etcd2"
@@ -40,4 +42,6 @@ type Config struct {
 	// Currently this is only supported in etcd2.
 	// We will drop the cache once using protobuf.
 	DeserializationCacheSize int
+
+	Codec runtime.Codec
 }

pkg/storage/storagebackend/factory/etcd2.go

@@ -24,14 +24,13 @@ import (
 	etcd2client "github.com/coreos/etcd/client"
 	"github.com/coreos/etcd/pkg/transport"
 
-	"k8s.io/kubernetes/pkg/runtime"
 	"k8s.io/kubernetes/pkg/storage"
 	"k8s.io/kubernetes/pkg/storage/etcd"
 	"k8s.io/kubernetes/pkg/storage/storagebackend"
 	utilnet "k8s.io/kubernetes/pkg/util/net"
 )
 
-func newETCD2Storage(c storagebackend.Config, codec runtime.Codec) (storage.Interface, error) {
+func newETCD2Storage(c storagebackend.Config) (storage.Interface, error) {
 	tr, err := newTransportForETCD2(c.CertFile, c.KeyFile, c.CAFile)
 	if err != nil {
 		return nil, err
@@ -40,7 +39,7 @@ func newETCD2Storage(c storagebackend.Config, codec runtime.Codec) (storage.Inte
 	if err != nil {
 		return nil, err
 	}
-	return etcd.NewEtcdStorage(client, codec, c.Prefix, c.Quorum, c.DeserializationCacheSize), nil
+	return etcd.NewEtcdStorage(client, c.Codec, c.Prefix, c.Quorum, c.DeserializationCacheSize), nil
 }
 
 func newETCD2Client(tr *http.Transport, serverList []string) (etcd2client.Client, error) {

pkg/storage/storagebackend/factory/etcd3.go

@@ -22,13 +22,12 @@ import (
 	"github.com/coreos/etcd/clientv3"
 	"golang.org/x/net/context"
 
-	"k8s.io/kubernetes/pkg/runtime"
 	"k8s.io/kubernetes/pkg/storage"
 	"k8s.io/kubernetes/pkg/storage/etcd3"
 	"k8s.io/kubernetes/pkg/storage/storagebackend"
 )
 
-func newETCD3Storage(c storagebackend.Config, codec runtime.Codec) (storage.Interface, error) {
+func newETCD3Storage(c storagebackend.Config) (storage.Interface, error) {
 	endpoints := c.ServerList
 	for i, s := range endpoints {
 		endpoints[i] = strings.TrimLeft(s, "http://")
@@ -41,5 +40,5 @@ func newETCD3Storage(c storagebackend.Config, codec runtime.Codec) (storage.Inte
 		return nil, err
 	}
 	etcd3.StartCompactor(context.Background(), client)
-	return etcd3.New(client, codec, c.Prefix), nil
+	return etcd3.New(client, c.Codec, c.Prefix), nil
 }

pkg/storage/storagebackend/factory/factory.go

@@ -19,22 +19,21 @@ package factory
 import (
 	"fmt"
 
-	"k8s.io/kubernetes/pkg/runtime"
 	"k8s.io/kubernetes/pkg/storage"
 	"k8s.io/kubernetes/pkg/storage/storagebackend"
 )
 
 // Create creates a storage backend based on given config.
-func Create(c storagebackend.Config, codec runtime.Codec) (storage.Interface, error) {
+func Create(c storagebackend.Config) (storage.Interface, error) {
 	switch c.Type {
 	case storagebackend.StorageTypeUnset, storagebackend.StorageTypeETCD2:
-		return newETCD2Storage(c, codec)
+		return newETCD2Storage(c)
 	case storagebackend.StorageTypeETCD3:
 		// TODO: We have the following features to implement:
 		// - Support secure connection by using key, cert, and CA files.
 		// - Honor "https" scheme to support secure connection in gRPC.
 		// - Support non-quorum read.
-		return newETCD3Storage(c, codec)
+		return newETCD3Storage(c)
 	default:
 		return nil, fmt.Errorf("unknown storage type: %s", c.Type)
 	}

test/integration/auth/rbac_test.go

@@ -77,11 +77,11 @@ func clientForUser(user string) *http.Client {
 
 func newRBACAuthorizer(t *testing.T, superUser string, config *master.Config) authorizer.Authorizer {
 	newRESTOptions := func(resource string) generic.RESTOptions {
-		storageInterface, err := config.StorageFactory.New(rbacapi.Resource(resource))
+		storageConfig, err := config.StorageFactory.NewConfig(rbacapi.Resource(resource))
 		if err != nil {
 			t.Fatalf("failed to get storage: %v", err)
 		}
-		return generic.RESTOptions{Storage: storageInterface, Decorator: generic.UndecoratedStorage, ResourcePrefix: resource}
+		return generic.RESTOptions{StorageConfig: storageConfig, Decorator: generic.UndecoratedStorage, ResourcePrefix: resource}
 	}
 
 	roleRegistry := role.NewRegistry(roleetcd.NewREST(newRESTOptions("roles")))