65 lines
1.4 KiB
Go
65 lines
1.4 KiB
Go
package main
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import (
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"context"
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"flag"
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"fmt"
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"log"
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"net"
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"os"
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"os/signal"
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"time"
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"google.golang.org/grpc"
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"myschools.me/suguo/consul-demo/consul"
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"myschools.me/suguo/consul-demo/health"
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pb "myschools.me/suguo/consul-demo/proto"
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"myschools.me/suguo/consul-demo/sample"
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)
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const (
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//APPNAME 每个服务默认有一个名称
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APPNAME string = "demo"
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)
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func main() {
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addr := flag.String("addr", "0.0.0.0", "service address")
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port := flag.Int("port", 9001, "service port")
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flag.Parse()
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ctx := context.Background()
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ctx, cancel := context.WithCancel(ctx)
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defer cancel()
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// grpc服务定义
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s := grpc.NewServer(grpc.MaxRecvMsgSize(1024), grpc.MaxSendMsgSize(1024))
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pb.RegisterHelloServer(s, &sample.Server{})
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pb.RegisterHealthServer(s, &health.Server{})
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// grpc服务启动
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go func() {
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log.Printf("starting grpc service on %s:%d\n", *addr, *port)
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lis, err := net.Listen("tcp", fmt.Sprintf("%s:%d", *addr, *port))
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if err != nil {
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log.Fatal("fail to open port: ", err)
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}
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err = s.Serve(lis)
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if err != nil {
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log.Fatal("fail to open microservice: ", err)
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}
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}()
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//注册至consul
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consul.Register(APPNAME, *addr, *port, "demo")
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defer consul.DeRegister(APPNAME, *addr, *port)
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// 服务停止相应
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c := make(chan os.Signal, 1)
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signal.Notify(c, os.Interrupt)
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<-c
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ctx, cancel = context.WithTimeout(context.Background(), 15*time.Second)
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defer cancel()
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log.Println("shutting down")
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os.Exit(0)
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}
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