golang 监听信号优雅退出

signal.go

package main

import (
	"log"
	"os"
	"os/signal"
	"syscall"
	"time"
)

func main() {
	// 监听退出信号
	shutdown := make(chan os.Signal, 1)
	signal.Notify(shutdown, syscall.SIGTERM, syscall.SIGINT, syscall.SIGQUIT)
	log.Println("程序启动")

	_ = <-shutdown
	// TODO 清理操作
	time.Sleep(time.Second * 2)

	log.Println("程序退出")
	os.Exit(0)
}