GO graceful shutdown

main.go

	var gracefulStop = make(chan os.Signal)

	signal.Notify(gracefulStop, syscall.SIGTERM)
	signal.Notify(gracefulStop, syscall.SIGINT)

	go func() {
		sig := <-gracefulStop
		fmt.Printf("caught sig: %+v", sig)
		fmt.Println("Wait for 2 second to finish processing")
		time.Sleep(2 * time.Second)
		os.Exit(0)
	}()