netbird/cmd/signal.go

package cmd

import (
	"flag"
	"fmt"
	log "github.com/sirupsen/logrus"
	"github.com/spf13/cobra"
	sig "github.com/wiretrustee/wiretrustee/signal"
	sProto "github.com/wiretrustee/wiretrustee/signal/proto"
	"google.golang.org/grpc"
	"net"
)

var (
	port int

	signalCmd = &cobra.Command{
		Use:   "signal",
		Short: "start Wiretrustee Signal Server",
		Run: func(cmd *cobra.Command, args []string) {
			flag.Parse()

			lis, err := net.Listen("tcp", fmt.Sprintf(":%d", port))
			if err != nil {
				log.Fatalf("failed to listen: %v", err)
			}

			if err != nil {
				log.Fatalf("failed to listen: %v", err)
			}
			var opts []grpc.ServerOption
			grpcServer := grpc.NewServer(opts...)
			sProto.RegisterSignalExchangeServer(grpcServer, sig.NewServer())
			log.Printf("started server: localhost:%v", port)
			if err := grpcServer.Serve(lis); err != nil {
				log.Fatalf("failed to serve: %v", err)
			}

			SetupCloseHandler()
		},
	}
)

func init() {
	upCmd.PersistentFlags().IntVar(&port, "port", 10000, "Server port to listen on (e.g. 10000)")
}