From 440ce7cb39f62c4f5e96a8ebf6562d1ca37db11b Mon Sep 17 00:00:00 2001
From: Kent Dong <ch3cho@qq.com>
Date: Wed, 31 Jan 2024 09:55:32 +0800
Subject: [PATCH] feat: Define a unified storage interface for storage backend
 integration (#55)

---
 src/apiserver/pkg/registry/file_rest.go  | 2 +-
 src/apiserver/pkg/registry/nacos_rest.go | 2 +-
 src/apiserver/pkg/registry/registry.go   | 8 ++++++--
 3 files changed, 8 insertions(+), 4 deletions(-)

diff --git a/src/apiserver/pkg/registry/file_rest.go b/src/apiserver/pkg/registry/file_rest.go
index 8faafc1..0fe72dc 100644
--- a/src/apiserver/pkg/registry/file_rest.go
+++ b/src/apiserver/pkg/registry/file_rest.go
@@ -53,7 +53,7 @@ func NewFileREST(
 	newFunc func() runtime.Object,
 	newListFunc func() runtime.Object,
 	attrFunc storage.AttrFunc,
-) (rest.Storage, error) {
+) (REST, error) {
 	if attrFunc == nil {
 		if isNamespaced {
 			if isNamespaced {
diff --git a/src/apiserver/pkg/registry/nacos_rest.go b/src/apiserver/pkg/registry/nacos_rest.go
index 2210ee3..79a46c8 100644
--- a/src/apiserver/pkg/registry/nacos_rest.go
+++ b/src/apiserver/pkg/registry/nacos_rest.go
@@ -62,7 +62,7 @@ func NewNacosREST(
 	newListFunc func() runtime.Object,
 	attrFunc storage.AttrFunc,
 	dataEncryptionKey []byte,
-) rest.Storage {
+) REST {
 	if attrFunc == nil {
 		if isNamespaced {
 			if isNamespaced {
diff --git a/src/apiserver/pkg/registry/registry.go b/src/apiserver/pkg/registry/registry.go
index bb30995..74a2ac9 100644
--- a/src/apiserver/pkg/registry/registry.go
+++ b/src/apiserver/pkg/registry/registry.go
@@ -21,9 +21,13 @@ import (
 	"k8s.io/apiserver/pkg/registry/rest"
 )
 
-// REST implements a RESTStorage for API services against etcd
-type REST struct {
+// REST defines a storage interface for integrating different storage backends with api server.
+type REST interface {
 	rest.Storage
+	rest.StandardStorage
+	rest.SingularNameProvider
+	rest.Scoper
+	rest.TableConvertor
 }
 
 // RESTInPeace is just a simple function that panics on error.