change the default storage location to avoid double prefixing

staging/src/k8s.io/apiextensions-apiserver/test/integration/registration_test.go

@@ -382,7 +382,7 @@ func TestEtcdStorage(t *testing.T) {
 		expectedObject *metaObject
 	}{
 		"namespacedNoxuDefinition": {
-			etcdPath: path.Join("/", etcdPrefix, "apiextensions.k8s.io/customresourcedefinitions/noxus.mygroup.example.com"),
+			etcdPath: "apiextensions.k8s.io/customresourcedefinitions/noxus.mygroup.example.com",
 			expectedObject: &metaObject{
 				Kind:       "CustomResourceDefinition",
 				APIVersion: "apiextensions.k8s.io/v1beta1",
@@ -407,7 +407,7 @@ func TestEtcdStorage(t *testing.T) {
 		},
 
 		"clusteredCurletDefinition": {
-			etcdPath: path.Join("/", etcdPrefix, "apiextensions.k8s.io/customresourcedefinitions/curlets.mygroup.example.com"),
+			etcdPath: "apiextensions.k8s.io/customresourcedefinitions/curlets.mygroup.example.com",
 			expectedObject: &metaObject{
 				Kind:       "CustomResourceDefinition",
 				APIVersion: "apiextensions.k8s.io/v1beta1",

staging/src/k8s.io/apiserver/pkg/server/options/etcd.go

@@ -135,7 +135,7 @@ func (f *SimpleRestOptionsFactory) GetRESTOptions(resource schema.GroupResource)
 		Decorator:               generic.UndecoratedStorage,
 		EnableGarbageCollection: f.Options.EnableGarbageCollection,
 		DeleteCollectionWorkers: f.Options.DeleteCollectionWorkers,
-		ResourcePrefix:          f.Options.StorageConfig.Prefix + "/" + resource.Group + "/" + resource.Resource,
+		ResourcePrefix:          resource.Group + "/" + resource.Resource,
 	}
 	if f.Options.EnableWatchCache {
 		ret.Decorator = genericregistry.StorageWithCacher(f.Options.DefaultWatchCacheSize)