python中Fabric模块怎么用
python中Fabric模块怎么用
这篇文章给大家分享的是有关python中Fabric模块怎么用的内容。小编觉得挺实用的,因此分享给大家做个参考,一起跟随小编过来看看吧。
基础一:
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#!/usr/bin/env python
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from fabric.api import *
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env.user='root'
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env.hosts=['218.78.186.162','125.208.12.56']
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env.passwords={ 'root@218.78.186.162:22':'XXX','root@125.208.12.56:22':'XXXX@0'}
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@runs_once ####runs_once代表只执行一次
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def local_task():
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local("hostname") ####local本地任务,不会ssh远程执行
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def remote_task():
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with cd("/tmp/"):
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run("hostname") ###run 远程命令
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@task ####task标记只有go函数可以调用remote_task函数
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def go():
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remote_task()
测试
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[root@hostnfsd :/soft/python/pyauto/第七章/fabric]$ fab -f simple1_test.py remote_task ###直接调用remote_task函数失败
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Warning: Command(s) not found:
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remote_task
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Available commands:
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go
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[root@hostnfsd :/soft/python/pyauto/第七章/fabric]$ fab -f simple1_test.py local_task ###有task表标识时直接调用local函数失败,meitask时才能直接调用local函数
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Warning: Command(s) not found:
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local_task
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Available commands:
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go
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[root@hostnfsd :/soft/python/pyauto/第七章/fabric]$ fab -f simple1_test.py go 通过go函数调用remote_task函数
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[218.78.186.162] Executing task 'go'
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[218.78.186.162] run: hostname
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[218.78.186.162] out: localhost.localdomain
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[218.78.186.162] out:
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[125.208.12.56] Executing task 'go'
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[125.208.12.56] run: hostname
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[125.208.12.56] out: host-192-168-1-56
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[125.208.12.56] out:
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Done.
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Disconnecting from 218.78.186.162… done.
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Disconnecting from 125.208.12.56… done.
有时我们希望直接用脚本就可以执行,可以如下更改
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#!/usr/bin/env python
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from fabric.api import *
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env.user='root'
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env.hosts=['218.78.186.162','125.208.12.56']
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env.passwords={ 'root@218.78.186.162:22':'ESBecs00','root@125.208.12.56:22':'eRaMUnA612@0'}
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@runs_once
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def local_task():
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local("hostname")
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def remote_task():
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with cd("/tmp/"):
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run("hostname")
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def go():
execute(remote_task) ####execute表示在脚本内执行即可 -
execute(local_task)
go()
直接运行即可
[root@hostnfsd :/soft/python/pyauto/第七章/fabric]$ python simple1_test.py
基础2:
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#!/usr/bin/env python
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from fabric.api import *
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env.user='root'
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env.hosts=['218.78.186.162','125.208.12.56']
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env.passwords={ 'root@218.78.186.162:22':'XXX','root@125.208.12.56:22':'XXXX@0'}
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@runs_once
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def input_raw():
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return prompt("please input directory name:",default="/home")
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def worktask(dirname):
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run("ls -l "+dirname)
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@task
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def go():
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getdirname = input_raw()
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worktask(getdirname)
跳板机:
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#!/usr/bin/env python
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from fabric.api import *
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from fabric.context_managers import *
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from fabric.contrib.console import confirm
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env.user='root'
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env.gateway='218.78.186.162'
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env.hosts=['125.208.12.56']
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env.passwords={ 'root@218.78.186.162:22':'XX','root@125.208.12.56:22':'XXXX@0'}
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lpackpath="/home/install/lnmp0.9.tar.gz"
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rpackpath="/tmp/install"
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@task
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def put_task():
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run("mkdir -p /tmp/install")
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with settings(warn_only=True):
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result = put(lpackpath, rpackpath)
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if result.failed and not confirm("put file failed, Continue[Y/N]?"):
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abort("Aborting file put task!")
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@task
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def run_task():
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with cd("/tmp/install"):
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run("tar -zxvf lnmp0.9.tar.gz")
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run("ls -l")
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@task
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def go():
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put_task()
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run_task()
有时需要将这些功能模板写到django中,那么我们可以将该功能封装到一个类中
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#!/usr/bin/env python
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from fabric.api import *
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class Student(object):
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def __init__(self,user,ip):
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env.user=user
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env.hosts=[ip]
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env.password='XXX'
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@runs_once
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def local_task(self):
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local("hostname")
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def remote_task(self):
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vhost=run("df -h")
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return vhost
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def yunxing(user,ip):
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tom=Student(user,ip)
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print execute(tom.remote_task)
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yunxing('root','218.78.186.162') ###直接调用该函数传参即可
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