Fabric自动化运维工具实现远程SSH部署及系统管理

Fabric的安装
yum install python-setuptools python-dev* pycrypto
wget https://pypi.python.org/packages/source/F/Fabric/Fabric-1.10.0.tar.gz --no-check-certificate
tar zxvf Fabric-1.10.0.tar.gz
cd Fabric-1.10.0
python setup.py install

python
>>>import fabric  #检查安装结果,导入模块没有提示异常,则安装成功

针对不同主机执行不同命令，简单脚本如下：（每个定义的函数都可以当成一个参数来执行）
#!/usr/bin/env
python
from fabric.colors import *
from fabric.api import *

env.user = 'root'
env.roledefs = {
'proxy': ['192.168.199.113'],
'media': ['192.168.199.118']
}
env.password = {
'root@192.168.199.113:22': '123456',
'root@192.168.199.118:22': '123456'
}

@roles('proxy')
def proxytask():
run("df -h")

@roles('media')
def mediatask():
run("free -m")

#@roles('media','proxy')
def run():
execute(proxytask)
execute(mediatask)

fab -f fabtest.py run
fab -f fabtest.py mediatask
fab -f fabtest.py proxytask  #可以对比一个这三个执行的结果

远程文件推送脚本：

#!/usr/bin/env python
#file tar upload check
from fabric.api import *
from fabric.context_managers import *
from fabric.contrib.console import confirm

env.user='root'
env.hosts=['192.168.199.118']
env.passwords = {
'root@192.168.199.118:22': '123456'
}

@task
def put_task(): #upload file task
run("mkdir -p /root/test")
with cd("/root/test")
with settings(warn_only=True):    #when upload error,continue
result = put("/etc","/root/test")
if result.failed and not confirm("put file failed,Continue[Y/N]?"):
about("Aborting file put task!")