1// Copyright 2016 The etcd Authors 2// 3// Licensed under the Apache License, Version 2.0 (the "License"); 4// you may not use this file except in compliance with the License. 5// You may obtain a copy of the License at 6// 7// http://www.apache.org/licenses/LICENSE-2.0 8// 9// Unless required by applicable law or agreed to in writing, software 10// distributed under the License is distributed on an "AS IS" BASIS, 11// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 12// See the License for the specific language governing permissions and 13// limitations under the License. 14 15package grpcproxy 16 17import ( 18 "context" 19 "io" 20 21 pb "go.etcd.io/etcd/api/v3/etcdserverpb" 22 "go.etcd.io/etcd/client/v3" 23) 24 25type maintenanceProxy struct { 26 client *clientv3.Client 27} 28 29func NewMaintenanceProxy(c *clientv3.Client) pb.MaintenanceServer { 30 return &maintenanceProxy{ 31 client: c, 32 } 33} 34 35func (mp *maintenanceProxy) Defragment(ctx context.Context, dr *pb.DefragmentRequest) (*pb.DefragmentResponse, error) { 36 conn := mp.client.ActiveConnection() 37 return pb.NewMaintenanceClient(conn).Defragment(ctx, dr) 38} 39 40func (mp *maintenanceProxy) Snapshot(sr *pb.SnapshotRequest, stream pb.Maintenance_SnapshotServer) error { 41 conn := mp.client.ActiveConnection() 42 ctx, cancel := context.WithCancel(stream.Context()) 43 defer cancel() 44 45 ctx = withClientAuthToken(ctx, stream.Context()) 46 47 sc, err := pb.NewMaintenanceClient(conn).Snapshot(ctx, sr) 48 if err != nil { 49 return err 50 } 51 52 for { 53 rr, err := sc.Recv() 54 if err != nil { 55 if err == io.EOF { 56 return nil 57 } 58 return err 59 } 60 err = stream.Send(rr) 61 if err != nil { 62 return err 63 } 64 } 65} 66 67func (mp *maintenanceProxy) Hash(ctx context.Context, r *pb.HashRequest) (*pb.HashResponse, error) { 68 conn := mp.client.ActiveConnection() 69 return pb.NewMaintenanceClient(conn).Hash(ctx, r) 70} 71 72func (mp *maintenanceProxy) HashKV(ctx context.Context, r *pb.HashKVRequest) (*pb.HashKVResponse, error) { 73 conn := mp.client.ActiveConnection() 74 return pb.NewMaintenanceClient(conn).HashKV(ctx, r) 75} 76 77func (mp *maintenanceProxy) Alarm(ctx context.Context, r *pb.AlarmRequest) (*pb.AlarmResponse, error) { 78 conn := mp.client.ActiveConnection() 79 return pb.NewMaintenanceClient(conn).Alarm(ctx, r) 80} 81 82func (mp *maintenanceProxy) Status(ctx context.Context, r *pb.StatusRequest) (*pb.StatusResponse, error) { 83 conn := mp.client.ActiveConnection() 84 return pb.NewMaintenanceClient(conn).Status(ctx, r) 85} 86 87func (mp *maintenanceProxy) MoveLeader(ctx context.Context, r *pb.MoveLeaderRequest) (*pb.MoveLeaderResponse, error) { 88 conn := mp.client.ActiveConnection() 89 return pb.NewMaintenanceClient(conn).MoveLeader(ctx, r) 90} 91 92func (mp *maintenanceProxy) Downgrade(ctx context.Context, r *pb.DowngradeRequest) (*pb.DowngradeResponse, error) { 93 conn := mp.client.ActiveConnection() 94 return pb.NewMaintenanceClient(conn).Downgrade(ctx, r) 95} 96