执行本机操作
简单的本地操作:
from fabric.api import local def lsfab(): local('cd ~/tmp/fab') local('ls') |
结果:
[ken@~/tmp/fab$] pwd;ls /Users/ken/tmp/fab fabfile.py fabfile.pyc test.py test.pyc [ken@~/tmp/fab$] fab -f test.py lsfab [localhost] local: cd ~/tmp/fab [localhost] local: ls fabfile.py fabfile.pyc test.py test.pyc Done. |
实战开始:
假设,你每天要提交一份配置文件settings.py到版本库(这里没有考虑冲突的情况)
如果是手工操作:
cd /home/project/test/conf/
git add settings.py
git commit -m 'daily update settings.py'
git pull origin
git push origin
也就是说,这几个命令你每天都要手动敲一次,所谓daily job,就是每天都要重复的,机械化的工作,让我们看看用fabric怎么实现一键搞定:(其实用shell脚本可以直接搞定,但是fab的优势不是在这里,这里主要位后面本地+远端操作做准备,毕竟两个地方的操作写一种脚本便于维护)
from fabric.api import local
def setting_ci():
local("cd /home/project/test/conf/")
local("git add settings.py")
#后面你懂的,懒得敲了…..
混搭整合远端操作
这时候,假设,你要到机器A的/home/ken/project对应项目目录把配置文件更新下来
#!/usr/bin/env python # encoding: utf-8 from fabric.api import local,cd,run env.hosts=['user@ip:port',] #ssh要用到的参数 env.password = 'pwd' def setting_ci(): local('echo "add and commit settings in local"') #刚才的操作换到这里,你懂的 def update_setting_remote(): print "remote update" with cd('~/temp'): #cd用于进入某个目录 run('ls -l | wc -l') #远程操作用run def update(): setting_ci() update_setting_remote() |
然后,执行之:
[ken@~/tmp/fab$] fab -f deploy.py update [user@ip:port] Executing task 'update' [localhost] local: echo "add and commit settings in local" add and commit settings in local remote update [user@ip:port] run: ls -l | wc -l [user@ip:port] out: 12 [user@ip:port] out: Done. |
注意,如果不声明env.password,执行到对应机器时会跳出要求输入密码的交互