fabric是python的一个基于命令行的自动化部署框架，用docker开了两个容器来学习fabric.

#!/usr/bin/env python#-*- coding=utf-8 -*-from fabric.api import *env.hosts=[    'root@114.215.86.228:22',    'root@114.215.86.228:32',]env.passwords={    'root@114.215.86.228:22':'*****',    'root@114.215.86.228:32':'***',}@taskdef task1():    run('ps')@taskdef task2():    run('uname -a')@taskdef dotask():    execute(task1)    execute(task2)

执行结果

root@0fe14b5400a8:/home# fab dotask[root@114.215.86.228:22] Executing task 'dotask'[root@114.215.86.228:22] Executing task 'task1'[root@114.215.86.228:22] run: ps[root@114.215.86.228:22] out:   PID TTY          TIME CMD[root@114.215.86.228:22] out: 26424 pts/2    00:00:00 ps[root@114.215.86.228:22] out:[root@114.215.86.228:32] Executing task 'task1'[root@114.215.86.228:32] run: ps[root@114.215.86.228:32] out:   PID TTY          TIME CMD[root@114.215.86.228:32] out:    59 pts/0    00:00:00 ps[root@114.215.86.228:32] out:[root@114.215.86.228:22] Executing task 'task2'[root@114.215.86.228:22] run: uname -a[root@114.215.86.228:22] out: Linux iZ2893wjzgyZ 3.13.0-32-generic #57-Ubuntu SMP Tue Jul 15 03:51:08 UTC 2014 x86_64 x86_64 x86_64 GNU/Linux[root@114.215.86.228:22] out:[root@114.215.86.228:32] Executing task 'task2'[root@114.215.86.228:32] run: uname -a[root@114.215.86.228:32] out: Linux c368a2768e6b 3.13.0-32-generic #57-Ubuntu SMP Tue Jul 15 03:51:08 UTC 2014 x86_64 x86_64 x86_64 GNU/Linux[root@114.215.86.228:32] out:[root@114.215.86.228:32] Executing task 'dotask'[root@114.215.86.228:22] Executing task 'task1'[root@114.215.86.228:22] run: ps[root@114.215.86.228:22] out:   PID TTY          TIME CMD[root@114.215.86.228:22] out: 26447 pts/2    00:00:00 ps[root@114.215.86.228:22] out:[root@114.215.86.228:32] Executing task 'task1'[root@114.215.86.228:32] run: ps[root@114.215.86.228:32] out:   PID TTY          TIME CMD[root@114.215.86.228:32] out:    63 pts/0    00:00:00 ps[root@114.215.86.228:32] out:[root@114.215.86.228:22] Executing task 'task2'[root@114.215.86.228:22] run: uname -a[root@114.215.86.228:22] out: Linux iZ2893wjzgyZ 3.13.0-32-generic #57-Ubuntu SMP Tue Jul 15 03:51:08 UTC 2014 x86_64 x86_64 x86_64 GNU/Linux[root@114.215.86.228:22] out:[root@114.215.86.228:32] Executing task 'task2'[root@114.215.86.228:32] run: uname -a[root@114.215.86.228:32] out: Linux c368a2768e6b 3.13.0-32-generic #57-Ubuntu SMP Tue Jul 15 03:51:08 UTC 2014 x86_64 x86_64 x86_64 GNU/Linux[root@114.215.86.228:32] out:Done.Disconnecting from 114.215.86.228... done.Disconnecting from 114.215.86.228:32... done.

尽管如此，密码是明文，不安全，因此仍然推荐用加key的方式管理服务器。