expose codec in storage

pkg/storage/etcd/etcd_helper.go

@@ -72,6 +72,11 @@ func init() {
 	metrics.Register()
 }
 
+// Codec provides access to the underlying codec being used by the implementation.
+func (h *etcdHelper) Codec() runtime.Codec {
+	return h.codec
+}
+
 // Implements storage.Interface.
 func (h *etcdHelper) Backends() []string {
 	return h.client.GetCluster()

pkg/storage/interfaces.go

@@ -69,7 +69,7 @@ func Everything(runtime.Object) bool {
 type UpdateFunc func(input runtime.Object, res ResponseMeta) (output runtime.Object, ttl *uint64, err error)
 
 // Interface offers a common interface for object marshaling/unmarshling operations and
-// hids all the storage-related operations behind it.
+// hides all the storage-related operations behind it.
 type Interface interface {
 	// Returns list of servers addresses of the underyling database.
 	// TODO: This method is used only in a single place. Consider refactoring and getting rid
@@ -146,4 +146,7 @@ type Interface interface {
 	//    }
 	// })
 	GuaranteedUpdate(key string, ptrToType runtime.Object, ignoreNotFound bool, tryUpdate UpdateFunc) error
+
+	// Codec provides access to the underlying codec being used by the implementation.
+	Codec() runtime.Codec
 }