wangyanglinux/tools repository overview

FROM alpine
ADD ./randexit /root
RUN chmod +x /root/randexit
CMD ["--sleeptime=5"]  
ENTRYPOINT ["/root/randexit"]

package main

import (
	"flag"
	"fmt"
	"math/rand"
	"os"
	"time"
)

func main() {
	sleepTime := flag.Int("sleeptime", 4, "休眠时间")
	exitcode := flag.Int("exitcode", 2, "返回码")
	flag.Parse()
	sleeptimeDing := *sleepTime

	// 处理休眠逻辑
	for *sleepTime >= 0 {
		time.Sleep(time.Second * 1)
		*sleepTime--
	}

	// 产生随机返回码
	// exitcode 值为 0, 返回码为 0
	// exitcode 值为 1，返回码为 1
	// 否则随机产生返回码
	if *exitcode == 0 {
		fmt.Printf("休眠 %v 秒，返回码为 %v！\n", sleeptimeDing, 0)
		os.Exit(0)
	} else  if *exitcode == 1 {
		fmt.Printf("休眠 %v 秒，返回码为 %v！\n",sleeptimeDing, 1)
		os.Exit(1)
	} else {
		rand.Seed(time.Now().UnixNano())
		num := rand.Intn(100)
		if num >= 50 {
			fmt.Printf("休眠 %v 秒，产生的随机数为 %v，大于等于 50 ，返回码为 %v！\n",sleeptimeDing , num, 1)
			os.Exit(1)
		} else {
			fmt.Printf("休眠 %v 秒，产生的随机数为 %v，小于等于 50 ，返回码为 %v！\n",sleeptimeDing , num, 0)
			os.Exit(0)
		}
	}
}