【Python】fabric学习笔记
05 Nov 2013安装神马的就不多说了，直接开练~
文档：
http://docs.fabfile.org/en/1.6/
任务一：
new一个fabfile.py
def hello():
print("Hello world!")
执行：
╭─@Flowerowl.local ~/z/pj/demos ╰─ fab hello hello~~
任务二：
新建一个test.py
def hello():
print("Hello world!")
执行：
╭─@Flowerowl.local ~/z/pj/demos ╰─ fab -f test.py hello 127 ↵ hello~~ Done.
任务三：
def hello(name, value):
print("%s = %s!" % (name, value))
执行：
╭─@Flowerowl.local ~/z/pj/demos ╰─ fab hello:name=yuzhe,value=21 yuzhe = 21!
任务四：
from fabric.api import local
def lsfab():
local('ls')
执行：
╭─@Flowerowl.local ~/z/pj/demos ╰─ fab lsfab 1 ↵ [localhost] local: ls array_list.py fabfile.pyc numpy_demos.py decorator.py main_mylocker.py path.py django.py metaclass.py stdin.py django.pyc mylocker.py test.py fabfile.py mylocker.pyc test.pyc Done.
任务五：
两台机器：10.1.6.186、10.1.6.159。fabric部署在10.1.6.186上面。
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
在fabric中可以将主机名、用户名、密码等信息写在fabfile中，但是不推荐将明文写在代码中，还是最好使用SSH的Key来认证
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
[10.1.6.186] Executing task 'task1'
[10.1.6.186] run: ls -l
[10.1.6.186] out: total 0
[10.1.6.186] out: -rw-r--r-- 1 root root 0 Dec 21 13:32 186-local
[10.1.6.186] out:
[10.1.6.159] Executing task 'task1'
[10.1.6.159] run: ls -l
[10.1.6.159] out: total 0
[10.1.6.159] out: -rw-r--r-- 1 root root 0 Dec 21 13:32 159-remote
[10.1.6.159] out:
Done.
Disconnecting from 10.1.6.159... done.
Disconnecting from 10.1.6.186... done.
任务六：
执行和1相同的任务，不过排除掉10.1.6.159这台机器
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
[10.1.6.186] Executing task 'task1'
[10.1.6.186] run: ls -l
[10.1.6.186] out: total 0
[10.1.6.186] out: -rw-r--r-- 1 root root 0 Dec 21 13:32 186-local
[10.1.6.186] out:
Done.
Disconnecting from 10.1.6.186... done.
任务七：
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
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
[10.1.6.186] Executing task 'deploy'
[10.1.6.186] Executing task 'task1'
[10.1.6.186] run: ls -l
[10.1.6.186] out: total 0
[10.1.6.186] out: -rw-r--r-- 1 root root 0 Dec 21 13:32 186-local
[10.1.6.186] out:
[10.1.6.186] Executing task 'task2'
I'm fabric
Done.
Disconnecting from 10.1.6.186... done.
任务八：
不同的机器执行不同的task
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
[10.1.6.186] Executing task 'task1'
[10.1.6.186] run: ls -l
[10.1.6.186] out: total 0
[10.1.6.186] out: -rw-r--r-- 1 root root 0 Dec 21 13:32 186-local
[10.1.6.186] out:
[10.1.6.159] Executing task 'task2'
I'm fabric
Done.
Disconnecting from 10.1.6.186... done.
任务九：
把159的/home/guol/159-remote拉取到186的 /home/guol/目录下
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
[10.1.6.159] Executing task 'deploy'
[10.1.6.159] Executing task 'task1'
I'm 186 /home/guol/
[localhost] local: ls -l /home/guol
total 0
-rw-r--r-- 1 root root 0 Dec 21 13:32 186-local
[10.1.6.159] Executing task 'task2'
I'm get 159's 159-remote file to 186
[10.1.6.159] download: /home/guol/159-remote <- /home/guol/159-remote
I'm 186 /home/guol/
[localhost] 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.
任务十：
把186的/home/guol/ 186-local推送到159的 /home/guol/目录下
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
[10.1.6.159] Executing task 'deploy'
[10.1.6.159] Executing task 'task1'
I'm 159 /home/guol/
[10.1.6.159] run: ls -l
[10.1.6.159] out: total 0
[10.1.6.159] out: -rw-r--r-- 1 root root 0 Dec 21 13:32 159-remote
[10.1.6.159] out:
[10.1.6.159] Executing task 'task2'
I'm put 186's 186-local file to 159
[10.1.6.159] put: /home/guol/186-local -> /home/guol/186-local
I'm 159 /home/guol/
[10.1.6.159] run: ls -l
[10.1.6.159] out: total 0
[10.1.6.159] out: -rw-r--r-- 1 root root 0 Dec 21 13:32 159-remote
[10.1.6.159] out: -rw-r--r-- 1 root root 0 Dec 21 14:33 186-local
[10.1.6.159] out:
Done.
Disconnecting from 10.1.6.159... done.
任务十一：
在186上打开一个159的交互式的shell
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
[10.1.6.159] Executing task 'deploy'
[10.1.6.159] 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:10.1.6.159 Bcast:10.1.6.255 Mask:255.255.255.0
转载请注明：于哲的博客 » 【Python】fabric学习笔记