[VOL-4291] Rw-core updates for gRPC migration
Change-Id: I8d5a554409115b29318089671ca4e1ab3fa98810
diff --git a/vendor/github.com/coreos/etcd/etcdserver/api/v3rpc/grpc.go b/vendor/github.com/coreos/etcd/etcdserver/api/v3rpc/grpc.go
new file mode 100644
index 0000000..c97e746
--- /dev/null
+++ b/vendor/github.com/coreos/etcd/etcdserver/api/v3rpc/grpc.go
@@ -0,0 +1,76 @@
+// Copyright 2016 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 v3rpc
+
+import (
+ "crypto/tls"
+ "math"
+
+ "github.com/coreos/etcd/etcdserver"
+ pb "github.com/coreos/etcd/etcdserver/etcdserverpb"
+
+ "github.com/grpc-ecosystem/go-grpc-middleware"
+ "github.com/grpc-ecosystem/go-grpc-prometheus"
+ "google.golang.org/grpc"
+ "google.golang.org/grpc/credentials"
+ "google.golang.org/grpc/health"
+ healthpb "google.golang.org/grpc/health/grpc_health_v1"
+)
+
+const (
+ grpcOverheadBytes = 512 * 1024
+ maxStreams = math.MaxUint32
+ maxSendBytes = math.MaxInt32
+)
+
+func Server(s *etcdserver.EtcdServer, tls *tls.Config, gopts ...grpc.ServerOption) *grpc.Server {
+ var opts []grpc.ServerOption
+ opts = append(opts, grpc.CustomCodec(&codec{}))
+ if tls != nil {
+ opts = append(opts, grpc.Creds(credentials.NewTLS(tls)))
+ }
+ opts = append(opts, grpc.UnaryInterceptor(grpc_middleware.ChainUnaryServer(
+ newLogUnaryInterceptor(s),
+ newUnaryInterceptor(s),
+ grpc_prometheus.UnaryServerInterceptor,
+ )))
+ opts = append(opts, grpc.StreamInterceptor(grpc_middleware.ChainStreamServer(
+ newStreamInterceptor(s),
+ grpc_prometheus.StreamServerInterceptor,
+ )))
+ opts = append(opts, grpc.MaxRecvMsgSize(int(s.Cfg.MaxRequestBytes+grpcOverheadBytes)))
+ opts = append(opts, grpc.MaxSendMsgSize(maxSendBytes))
+ opts = append(opts, grpc.MaxConcurrentStreams(maxStreams))
+ grpcServer := grpc.NewServer(append(opts, gopts...)...)
+
+ pb.RegisterKVServer(grpcServer, NewQuotaKVServer(s))
+ pb.RegisterWatchServer(grpcServer, NewWatchServer(s))
+ pb.RegisterLeaseServer(grpcServer, NewQuotaLeaseServer(s))
+ pb.RegisterClusterServer(grpcServer, NewClusterServer(s))
+ pb.RegisterAuthServer(grpcServer, NewAuthServer(s))
+ pb.RegisterMaintenanceServer(grpcServer, NewMaintenanceServer(s))
+
+ // server should register all the services manually
+ // use empty service name for all etcd services' health status,
+ // see https://github.com/grpc/grpc/blob/master/doc/health-checking.md for more
+ hsrv := health.NewServer()
+ hsrv.SetServingStatus("", healthpb.HealthCheckResponse_SERVING)
+ healthpb.RegisterHealthServer(grpcServer, hsrv)
+
+ // set zero values for metrics registered for this grpc server
+ grpc_prometheus.Register(grpcServer)
+
+ return grpcServer
+}