【Python运维】最简单的Python运维脚本

摘要：相关技术代码运行开启服务无法连接到拒绝连接关闭服务无法连接到拒绝连接重启服务无法连接到拒绝连接感想脚本还是比脚本好写很多啊。

最近在Windows 10上使用Linux子系统，发现它有一个非常坑爹的特点：Linux子系统是没有开机关机状态的，每次进入Bash shell就自动载入，退出后Linux子系统的所有进程都会被关闭，如果你撞了Mysql之类的服务要想随时运行的话就要保持Bash shell的随时开启，更坑的是这些服务并不会随之进入Bash shell而自动启动， 我只好写一个Python脚本用于管理这些服务。

Python3, argparse module

from os import system
from argparse import ArgumentParser

def start_service(service):
    system("service {} start".format(service))

def stop_service(service):
    system("service {} stop".format(service))

def restart_service(service):
    print(service)
    system("service {} restart".format(service))

def manage_service():
    services = []
    services.append("xinetd")
    services.append("lighttpd")
    return services

def set_args():
    parser = ArgumentParser()
    parser.add_argument("service", help = "the service to be managed.")
    parser.add_argument("-s", "--start", help = "start the service(s).", action = "store_true")
    parser.add_argument("-r", "--restart", help = "restart the service(s).", action = "store_true")
    parser.add_argument("-p", "--stop", help = "stop the service(s).", action = "store_true")
    return parser.parse_args()

def deal(args,services):
    global start_service, restart_service, stop_service
    services = services if not args.service else services if args.service == "all"else [args.service]
    operation = start_service if args.start else restart_service if args.restart else stop_service
    for  service in services:
       operation(service)

if __name__ == "__main__":
    deal(set_args(),manage_service())

(env) root@DESKTOP-1DDIIV2:~# python pyops.py all -s
initctl: 无法连接到 Upstart: Failed to connect to socket /com/ubuntu/upstart: 拒绝连接
 * Starting internet superserver xinetd                                                                                                                          [fail]
 * Starting web server lighttpd                                                                                                                                  [ OK ]
(env) root@DESKTOP-1DDIIV2:~#

(env) root@DESKTOP-1DDIIV2:~# python pyops.py xinetd -p
initctl: 无法连接到 Upstart: Failed to connect to socket /com/ubuntu/upstart: 拒绝连接
 * Stopping internet superserver xinetd                                                                                                                          [ OK ]
(env) root@DESKTOP-1DDIIV2:~#

(env) root@DESKTOP-1DDIIV2:~# python pyops.py xinetd -r
xinetd
initctl: 无法连接到 Upstart: Failed to connect to socket /com/ubuntu/upstart: 拒绝连接
 * Stopping internet superserver xinetd                                                                                                                          [ OK ]
 * Starting internet superserver xinetd                                                                                                                          [ OK ]
(env) root@DESKTOP-1DDIIV2:~#

Python脚本还是比shell脚本好写很多啊。