大家在平时的开发中应该时常遇到代码上线的问题，一般来说存在以下几个头疼的问题：
<ul> <li>主机数量较多，但不是特别多（1~100）</li> <li>上线步骤繁琐，容易出错</li> <li>可能需要sudo，需要多次输入sudo密码</li></ul>一般来说你有两个选择：<ul> <li><a href="http://www.fabfile.org/" target="_blank">fabric</a> Python写的</li> <li><a href="http://capistranorb.com/" target="_blank">capistrano</a> Ruby写的</li></ul>然后就选择了fabric，直接上代码<pre class="lang:python">
# -*- coding=utf-8 -*-from fabric.api import *
from fabric.contrib.project import rsync_projectenv.roledefs = {
'liantong':[ #电信机房 'xxx@w01v.add.xxx.com', 'xxx@w02v.add.xxx.com', ], 'dianxin':[ #联通机房 'xxx@w01v.add.xxx.com', 'xxx@w02v.add.xxx.com', ],}@roles('liantong', 'dianxin') #这么写装饰器是表示电信，联通都要执行这个函数
def check(): run('ps aux | grep uwsgi | grep -v grep') run('ls -l /home/system/service/')def initFiles():
execute(liantong_conf) #执行 liantong_conf() execute(dianxin_conf) #执行 dianxin_conf()@roles('dianxin') #电信
def dianxin_conf(): initFiles1() sudo("cd /home/system/service && mv settings_online_dianxin.py settings.py") initFiles2()@roles('liantong') #联通
def liantong_conf(): initFiles1() sudo("cd /home/system/service && mv settings_online_liantong.py settings.py") initFiles2()@roles('liantong', 'dianxin')
def initFiles1(): sudo("chmod 777 /home/system/service") sudo("chmod 777 /home/system/service/orm") sudo("chown -R auxten:auxten /home/system/service")rsync_project( # 调用rsync
remote_dir='/home/system/service/', local_dir='/Users/auxten/Codes/Web/flow-web/*', exclude=['python2.7','*.pyc','*.log','.svn','.idea','logs','*pull.sh','*push.sh','settings.py'] )@roles('liantong', 'dianxin')
def initFiles2(): sudo("chown -R apache:apache /home/system/service")@roles('liantong', 'dianxin')
def restart(): sudo("sh /home/system/service/run.sh") run('ps aux | grep uwsgi | grep -v grep')@roles('liantong', 'dianxin')
def checkLog(): sudo('tail -50 /home/system/service/uwsgi.log')</pre> <pre class="lang:bash">#############上线就只需执行fab -f webDeploy.py initFiles restart #即可，登陆密码和sudo密码都只会问一遍</pre>更多功能等待大家去挖掘，我也是刚刚用，欢迎留言交流心得