Add ipv6 support and enable go mod

main.go

@@ -3,20 +3,33 @@ package main
 import (
 	"context"
 	"flag"
+	"fmt"
+	"os"
+	"os/signal"
+	"syscall"
+
 	"github.com/golang/glog"
 	c "github.com/mayuresh82/gocast/config"
 	"github.com/mayuresh82/gocast/controller"
 	"github.com/mayuresh82/gocast/server"
 	log "github.com/sirupsen/logrus"
-	"os"
-	"os/signal"
-	"syscall"
 )
 
 var (
-	config = flag.String("config", "", "Path to config file")
+	config      = flag.String("config", "", "Path to config file")
+	nextVersion = "0.0.1"
+	version     string
+	commit      string
+	branch      string
 )
 
+func getVersion() string {
+	if version == "" {
+		return fmt.Sprintf("v%s~%s", nextVersion, commit)
+	}
+	return fmt.Sprintf("%s~%s", version, commit)
+}
+
 func main() {
 	flag.Parse()
 	if glog.V(4) {
@@ -26,8 +39,11 @@ func main() {
 	mon := controller.NewMonitor(conf)
 	srv := server.NewServer(conf.Agent.ListenAddr, mon)
 
+	glog.Infof("Starting GoCast %s", getVersion())
 	ctx, cancel := context.WithCancel(context.Background())
+	go srv.Serve(ctx)
 	// catch interrupt
+	shutdown := make(chan struct{})
 	signalChan := make(chan os.Signal, 1)
 	signal.Notify(signalChan, os.Interrupt, syscall.SIGHUP, syscall.SIGTERM)
 	go func() {
@@ -36,9 +52,10 @@ func main() {
 			if sig == os.Interrupt || sig == syscall.SIGTERM {
 				mon.CloseAll()
 				cancel()
+				shutdown <- struct{}{}
 				return
 			}
 		}
 	}()
-	srv.Serve(ctx)
+	<-shutdown
 }