mirror of
https://github.com/ceph/ceph-csi.git
synced 2024-12-21 20:40:20 +00:00
5afc6fd0d2
Register group controller server if its initialized. Signed-off-by: Madhu Rajanna <madhupr007@gmail.com>
123 lines
2.9 KiB
Go
123 lines
2.9 KiB
Go
/*
|
|
Copyright 2017 The Kubernetes 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 csicommon
|
|
|
|
import (
|
|
"net"
|
|
"os"
|
|
"sync"
|
|
|
|
"github.com/ceph/ceph-csi/internal/util/log"
|
|
|
|
"github.com/container-storage-interface/spec/lib/go/csi"
|
|
"google.golang.org/grpc"
|
|
"k8s.io/klog/v2"
|
|
)
|
|
|
|
// NonBlockingGRPCServer defines Non blocking GRPC server interfaces.
|
|
type NonBlockingGRPCServer interface {
|
|
// Start services at the endpoint
|
|
Start(endpoint string, srv Servers)
|
|
// Waits for the service to stop
|
|
Wait()
|
|
// Stops the service gracefully
|
|
Stop()
|
|
// Stops the service forcefully
|
|
ForceStop()
|
|
}
|
|
|
|
// Servers holds the list of servers.
|
|
type Servers struct {
|
|
IS csi.IdentityServer
|
|
CS csi.ControllerServer
|
|
NS csi.NodeServer
|
|
GS csi.GroupControllerServer
|
|
}
|
|
|
|
// NewNonBlockingGRPCServer return non-blocking GRPC.
|
|
func NewNonBlockingGRPCServer() NonBlockingGRPCServer {
|
|
return &nonBlockingGRPCServer{}
|
|
}
|
|
|
|
// NonBlocking server.
|
|
type nonBlockingGRPCServer struct {
|
|
wg sync.WaitGroup
|
|
server *grpc.Server
|
|
}
|
|
|
|
// Start start service on endpoint.
|
|
func (s *nonBlockingGRPCServer) Start(endpoint string, srv Servers) {
|
|
s.wg.Add(1)
|
|
go s.serve(endpoint, srv)
|
|
}
|
|
|
|
// Wait blocks until the WaitGroup counter.
|
|
func (s *nonBlockingGRPCServer) Wait() {
|
|
s.wg.Wait()
|
|
}
|
|
|
|
// GracefulStop stops the gRPC server gracefully.
|
|
func (s *nonBlockingGRPCServer) Stop() {
|
|
s.server.GracefulStop()
|
|
}
|
|
|
|
// Stop stops the gRPC server.
|
|
func (s *nonBlockingGRPCServer) ForceStop() {
|
|
s.server.Stop()
|
|
}
|
|
|
|
func (s *nonBlockingGRPCServer) serve(endpoint string, srv Servers) {
|
|
proto, addr, err := parseEndpoint(endpoint)
|
|
if err != nil {
|
|
klog.Fatal(err.Error())
|
|
}
|
|
|
|
if proto == "unix" {
|
|
addr = "/" + addr
|
|
if e := os.Remove(addr); e != nil && !os.IsNotExist(e) {
|
|
klog.Fatalf("Failed to remove %s, error: %s", addr, e.Error())
|
|
}
|
|
}
|
|
|
|
listener, err := net.Listen(proto, addr)
|
|
if err != nil {
|
|
klog.Fatalf("Failed to listen: %v", err)
|
|
}
|
|
|
|
server := grpc.NewServer(NewMiddlewareServerOption())
|
|
s.server = server
|
|
|
|
if srv.IS != nil {
|
|
csi.RegisterIdentityServer(server, srv.IS)
|
|
}
|
|
if srv.CS != nil {
|
|
csi.RegisterControllerServer(server, srv.CS)
|
|
}
|
|
if srv.NS != nil {
|
|
csi.RegisterNodeServer(server, srv.NS)
|
|
}
|
|
if srv.GS != nil {
|
|
csi.RegisterGroupControllerServer(server, srv.GS)
|
|
}
|
|
|
|
log.DefaultLog("Listening for connections on address: %#v", listener.Addr())
|
|
err = server.Serve(listener)
|
|
if err != nil {
|
|
klog.Fatalf("Failed to server: %v", err)
|
|
}
|
|
}
|