Merge pull request #7656 from gyuho/more-adapter

*: add cluster API adapter

clientv3/cluster.go

@@ -50,6 +50,10 @@ func NewCluster(c *Client) Cluster {
 	return &cluster{remote: RetryClusterClient(c)}
 }
 
+func NewClusterFromClusterClient(remote pb.ClusterClient) Cluster {
+	return &cluster{remote: remote}
+}
+
 func (c *cluster) MemberAdd(ctx context.Context, peerAddrs []string) (*MemberAddResponse, error) {
 	r := &pb.MemberAddRequest{PeerURLs: peerAddrs}
 	resp, err := c.remote.MemberAdd(ctx, r)

etcdserver/api/v3client/v3client.go

@@ -42,5 +42,10 @@ func New(s *etcdserver.EtcdServer) *clientv3.Client {
 	mc := adapter.MaintenanceServerToMaintenanceClient(v3rpc.NewMaintenanceServer(s))
 	c.Maintenance = clientv3.NewMaintenanceFromMaintenanceClient(mc)
 
+	clc := adapter.ClusterServerToClusterClient(v3rpc.NewClusterServer(s))
+	c.Cluster = clientv3.NewClusterFromClusterClient(clc)
+
+	// TODO: implement clientv3.Auth interface?
+
 	return c
 }

integration/cluster_proxy.go

@@ -57,9 +57,10 @@ func toGRPC(c *clientv3.Client) grpcAPI {
 	wp, wpch := grpcproxy.NewWatchProxy(c)
 	lp, lpch := grpcproxy.NewLeaseProxy(c)
 	mp := grpcproxy.NewMaintenanceProxy(c)
+	clp, _ := grpcproxy.NewClusterProxy(c, "", "") // without registering proxy URLs
 
 	grpc := grpcAPI{
-		pb.NewClusterClient(c.ActiveConnection()),
+		adapter.ClusterServerToClusterClient(clp),
 		adapter.KvServerToKvClient(kvp),
 		adapter.LeaseServerToLeaseClient(lp),
 		adapter.WatchServerToWatchClient(wp),

proxy/grpcproxy/adapter/cluster_client_adapter.go

@@ -0,0 +1,44 @@
+// Copyright 2017 The etcd Authors
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package adapter
+
+import (
+	pb "github.com/coreos/etcd/etcdserver/etcdserverpb"
+
+	"golang.org/x/net/context"
+	"google.golang.org/grpc"
+)
+
+type cls2clc struct{ cls pb.ClusterServer }
+
+func ClusterServerToClusterClient(cls pb.ClusterServer) pb.ClusterClient {
+	return &cls2clc{cls}
+}
+
+func (s *cls2clc) MemberList(ctx context.Context, r *pb.MemberListRequest, opts ...grpc.CallOption) (*pb.MemberListResponse, error) {
+	return s.cls.MemberList(ctx, r)
+}
+
+func (s *cls2clc) MemberAdd(ctx context.Context, r *pb.MemberAddRequest, opts ...grpc.CallOption) (*pb.MemberAddResponse, error) {
+	return s.cls.MemberAdd(ctx, r)
+}
+
+func (s *cls2clc) MemberUpdate(ctx context.Context, r *pb.MemberUpdateRequest, opts ...grpc.CallOption) (*pb.MemberUpdateResponse, error) {
+	return s.cls.MemberUpdate(ctx, r)
+}
+
+func (s *cls2clc) MemberRemove(ctx context.Context, r *pb.MemberRemoveRequest, opts ...grpc.CallOption) (*pb.MemberRemoveResponse, error) {
+	return s.cls.MemberRemove(ctx, r)
+}