golang-gin - graceful restart

当ginWhen the framework deploys and runs,If instant restart or shutdown,It may cause incomplete execution of the process or function in it,形成脏数据,Causes individual functions of the system to operate abnormally.So graceful restarts and shutdowns are necessary
原理：关闭http serverShut down the system after a delay of several seconds,Wait for each function to finish running
此为https的请求,调用ListenAndServeTLSAnd add the certificate location to enabletls.
如果为httpthen just change toListenAndServe即可
The code is set atmain.go函数

	//开启的端口号
	//err = r.RunTLS(config.TLSConfig.Addr, config.TLSConfig.CertFile, config.TLSConfig.KeyFile)
	//if err != nil {
    
	// panic(err)
	//}

	srv := &http.Server{
    
		Addr:    config.TLSConfig.Addr,
		Handler: r,
	}

	go func() {
    
		// 基于httpsThe service connection is open
		if err := srv.ListenAndServeTLS(config.TLSConfig.CertFile, config.TLSConfig.KeyFile) ; err != nil && err != http.ErrServerClosed {
    
			log.Fatalf("listen: %s\n", err)
		}
	}()

	// Wait for interrupt signal to gracefully shutdown the server with
	// a timeout of 3 seconds.
	quit := make(chan os.Signal)
	// kill (no param) default send syscanll.SIGTERM
	// kill -2 is syscall.SIGINT
	// kill -9 is syscall. SIGKILL but can"t be catch, so don't need add it
	signal.Notify(quit, syscall.SIGINT, syscall.SIGTERM)
	<-quit
	log.Println(time.Now().Format("2006-01-02 15:04:05")+"Shutdown Server ...")

	ctx, cancel := context.WithTimeout(context.Background(), 3*time.Second)
	defer cancel()
	if err := srv.Shutdown(ctx); err != nil {
    
		log.Fatal("Server Shutdown:", err)
	}
	// catching ctx.Done(). timeout of 3 seconds.
	select {
    
	case <-ctx.Done():
		log.Println("timeout of 3 seconds.")
	}
	log.Println(time.Now().Format("2006-01-02 15:04:05")+" Server Done")
	fmt.Println(time.Now().Format("2006-01-02 15:04:05")+" Server Done")

运行结果：