Python fabric实践操作
前面学习了理论，下面该练练手了。两台机器：10.1.6.186、10.1.6.159。fabric部署在10.1.6.186上面。1执行一个简单的task任务，显示两台机器的/home/guol/目录下的文件
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#!/usr/bin/python
from fabric.api import *
from fabric.context_managers import *
env.hosts=['10.1.6.186','10.1.6.159']
env.password='xxxxxx'
def task1():
with cd('/home/guol'):
run('ls -l')
##结果
root@vm11:/tmp# fab task1
Executing task 'task1'
run: ls -l
out: total 0
out: -rw-r--r-- 1 root root 0 Dec 21 13:32 186-local
out:
Executing task 'task1'
run: ls -l
out: total 0
out: -rw-r--r-- 1 root root 0 Dec 21 13:32 159-remote
out:
Done.
Disconnecting from 10.1.6.159... done.
Disconnecting from 10.1.6.186... done. 2执行和1相同的任务，不过排除掉10.1.6.159这台机器
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#!/usr/bin/python
from fabric.api import *
from fabric.context_managers import *
env.hosts=['10.1.6.186','10.1.6.159']
env.password='xxxxxx'
env.exclude_hosts=['10.1.6.159']
def task1():
with cd('/home/guol'):
run('ls -l')
##执行
root@vm11:/tmp# fab task1
Executing task 'task1'
run: ls -l
out: total 0
out: -rw-r--r-- 1 root root 0 Dec 21 13:32 186-local
out:
Done.
Disconnecting from 10.1.6.186... done. 3执行和2相同任务，再增加一个task2，并且把taskN伪装成meta任务执行
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#!/usr/bin/python
from fabric.api import *
from fabric.colors import *
from fabric.context_managers import *
env.hosts=['10.1.6.186','10.1.6.159']
env.password='xxxxxx'
env.exclude_hosts=['10.1.6.159']
def task1():
with cd('/home/guol'):
run('ls -l')
def task2():
print(green("I'm fabric"))
def deploy():
execute(task1)
execute(task2)
##执行
root@vm11:/tmp# fab deploy
Executing task 'deploy'
Executing task 'task1'
run: ls -l
out: total 0
out: -rw-r--r-- 1 root root 0 Dec 21 13:32 186-local
out:
Executing task 'task2'
I'm fabric
Done.
Disconnecting from 10.1.6.186... done. 4不同的机器执行不同的task
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#!/usr/bin/python
from fabric.api import *
from fabric.colors import *
from fabric.context_managers import *
env.roledefs={'web1':['10.1.6.186'],'web2':['10.1.6.159']}
env.password='xxxxxx'
@roles('web1')
def task1():
with cd('/home/guol'):
run('ls -l')
@roles('web2')
def task2():
print(green("I'm fabric"))
def deploy():
execute(task1)
execute(task2)
##执行
root@vm11:/tmp# fab deploy
Executing task 'task1'
run: ls -l
out: total 0
out: -rw-r--r-- 1 root root 0 Dec 21 13:32 186-local
out:
Executing task 'task2'
I'm fabric
Done.
Disconnecting from 10.1.6.186... done. 5把159的/home/guol/159-remote拉取到186的 /home/guol/目录下
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#!/usr/bin/python
from fabric.api import *
from fabric.colors import *
from fabric.context_managers import *
env.hosts=['10.1.6.159']
env.password='xxxxxx'
def task1():
print(green("I'm 186 /home/guol/"))
local('ls -l /home/guol')
def task2():
print(green("I'm get 159's 159-remote file to 186"))
get('/home/guol/159-remote','/home/guol')
print(yellow("I'm 186 /home/guol/"))
local('ls -l /home/guol')
def deploy():
execute(task1)
execute(task2)
##执行
root@vm11:/tmp# fab deploy
Executing task 'deploy'
Executing task 'task1'
I'm 186 /home/guol/
local: ls -l /home/guol
total 0
-rw-r--r-- 1 root root 0 Dec 21 13:32 186-local
Executing task 'task2'
I'm get 159's 159-remote file to 186
download: /home/guol/159-remote <- /home/guol/159-remote
I'm 186 /home/guol/
local: ls -l /home/guol
total 0
-rw-r--r-- 1 root root 0 Dec 21 14:28 159-remote
-rw-r--r-- 1 root root 0 Dec 21 13:32 186-local
Done.
Disconnecting from 10.1.6.159... done. 6 把186的/home/guol/ 186-local推送到159的 /home/guol/目录下
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#!/usr/bin/python
from fabric.api import *
from fabric.colors import *
from fabric.context_managers import *
env.hosts=['10.1.6.159']
env.password='xxxxxx'
def task1():
print(green("I'm 159 /home/guol/"))
with cd('/home/guol'):
run('ls -l')
def task2():
print(green("I'm put 186's 186-local file to 159"))
put('/home/guol/186-local','/home/guol')
print(yellow("I'm 159 /home/guol/"))
with cd('/home/guol'):
run('ls -l')
def deploy():
execute(task1)
execute(task2)
##执行
root@vm11:/tmp# fab deploy
Executing task 'deploy'
Executing task 'task1'
I'm 159 /home/guol/
run: ls -l
out: total 0
out: -rw-r--r-- 1 root root 0 Dec 21 13:32 159-remote
out:
Executing task 'task2'
I'm put 186's 186-local file to 159
put: /home/guol/186-local -> /home/guol/186-local
I'm 159 /home/guol/
run: ls -l
out: total 0
out: -rw-r--r-- 1 root root 0 Dec 21 13:32 159-remote
out: -rw-r--r-- 1 root root 0 Dec 21 14:33 186-local
out:
Done.
Disconnecting from 10.1.6.159... done. 7在186上打开一个159的交互式的shell
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#!/usr/bin/python
from fabric.api import *
from fabric.colors import *
from fabric.context_managers import *
env.hosts=['10.1.6.159']
env.password='xxxxxx'
def task3():
open_shell("ifconfig eth0|grep '10.1.6.159'")
def deploy():
execute(task3)
##执行
root@vm11:/tmp# fab deploy
Executing task 'deploy'
Executing task 'task3'
Welcome to Ubuntu 12.10 (GNU/Linux 3.5.0-17-generic x86_64)
Last login: Fri Dec 21 14:39:39 2012 from 10.1.6.186
ifconfig eth0|grep '10.1.6.159'
root@vm12:~# ifconfig eth0|grep '10.1.6.159'
inet addr:10.1.6.159Bcast:10.1.6.255Mask:255.255.255.0
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