mirror of
https://github.com/ceph/ceph-csi.git
synced 2024-12-18 11:00:25 +00:00
146 lines
4.0 KiB
Go
146 lines
4.0 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"
|
|
"strconv"
|
|
"strings"
|
|
"sync"
|
|
|
|
"github.com/container-storage-interface/spec/lib/go/csi"
|
|
grpc_middleware "github.com/grpc-ecosystem/go-grpc-middleware"
|
|
grpc_prometheus "github.com/grpc-ecosystem/go-grpc-prometheus"
|
|
"github.com/prometheus/client_golang/prometheus"
|
|
"google.golang.org/grpc"
|
|
klog "k8s.io/klog/v2"
|
|
|
|
"github.com/ceph/ceph-csi/internal/util"
|
|
)
|
|
|
|
// NonBlockingGRPCServer defines Non blocking GRPC server interfaces.
|
|
type NonBlockingGRPCServer interface {
|
|
// Start services at the endpoint
|
|
Start(endpoint, hstOptions string, ids csi.IdentityServer, cs csi.ControllerServer, ns csi.NodeServer, metrics bool)
|
|
// Waits for the service to stop
|
|
Wait()
|
|
// Stops the service gracefully
|
|
Stop()
|
|
// Stops the service forcefully
|
|
ForceStop()
|
|
}
|
|
|
|
// 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, hstOptions string, ids csi.IdentityServer, cs csi.ControllerServer, ns csi.NodeServer, metrics bool) {
|
|
s.wg.Add(1)
|
|
go s.serve(endpoint, hstOptions, ids, cs, ns, metrics)
|
|
}
|
|
|
|
// 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, hstOptions string, ids csi.IdentityServer, cs csi.ControllerServer, ns csi.NodeServer, metrics bool) {
|
|
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)
|
|
}
|
|
|
|
middleWare := []grpc.UnaryServerInterceptor{contextIDInjector, logGRPC, panicHandler}
|
|
if metrics {
|
|
middleWare = append(middleWare, grpc_prometheus.UnaryServerInterceptor)
|
|
}
|
|
opts := []grpc.ServerOption{
|
|
grpc_middleware.WithUnaryServerChain(middleWare...),
|
|
}
|
|
|
|
server := grpc.NewServer(opts...)
|
|
s.server = server
|
|
|
|
if ids != nil {
|
|
csi.RegisterIdentityServer(server, ids)
|
|
}
|
|
if cs != nil {
|
|
csi.RegisterControllerServer(server, cs)
|
|
}
|
|
if ns != nil {
|
|
csi.RegisterNodeServer(server, ns)
|
|
}
|
|
util.DefaultLog("Listening for connections on address: %#v", listener.Addr())
|
|
if metrics {
|
|
ho := strings.Split(hstOptions, ",")
|
|
if len(ho) != 3 {
|
|
klog.Fatalf("invalid histogram options provided: %v", hstOptions)
|
|
}
|
|
start, e := strconv.ParseFloat(ho[0], 32)
|
|
if e != nil {
|
|
klog.Fatalf("failed to parse histogram start value: %v", e)
|
|
}
|
|
factor, e := strconv.ParseFloat(ho[1], 32)
|
|
if err != nil {
|
|
klog.Fatalf("failed to parse histogram factor value: %v", e)
|
|
}
|
|
count, e := strconv.Atoi(ho[2])
|
|
if err != nil {
|
|
klog.Fatalf("failed to parse histogram count value: %v", e)
|
|
}
|
|
buckets := prometheus.ExponentialBuckets(start, factor, count)
|
|
bktOptios := grpc_prometheus.WithHistogramBuckets(buckets)
|
|
grpc_prometheus.EnableHandlingTimeHistogram(bktOptios)
|
|
grpc_prometheus.Register(server)
|
|
}
|
|
err = server.Serve(listener)
|
|
if err != nil {
|
|
klog.Fatalf("Failed to server: %v", err)
|
|
}
|
|
}
|