try python fabric

By yuanxiaolong

更新日期:

文章目录
  1. 1. 环境准备
  2. 2. 简单使用

试用fabric

fabric是一个自动化运维工具，简单快捷

环境准备

fabric能够高效的处理ssh这样运维的事情，类似于 scp 但又强大于它。

1.本机先装python（略）

2.安装python的包管理工具 pip 官网

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wget https://bootstrap.pypa.io/get-pip.py
sudo python get-pip.py

小技巧

  • pip list | grep fabric 快速查看到 fabric 的版本
  • pip show fabric 查看 fabric 的详情

3.安装fabric包

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xiaolongyuan@xiaolongdeMacBook-Air workspace_python$ sudo pip install fabric

Downloading Fabric-1.10.1.tar.gz (209kB)
    100% |████████████████████████████████| 212kB 156kB/s
Collecting paramiko>=1.10 (from fabric)
  Downloading paramiko-1.15.2-py2.py3-none-any.whl (165kB)
    100% |████████████████████████████████| 167kB 113kB/s
Collecting ecdsa>=0.11 (from paramiko>=1.10->fabric)
  Downloading ecdsa-0.13-py2.py3-none-any.whl (86kB)
    100% |████████████████████████████████| 90kB 75kB/s
Collecting pycrypto!=2.4,>=2.1 (from paramiko>=1.10->fabric)
  Downloading pycrypto-2.6.1.tar.gz (446kB)
    100% |████████████████████████████████| 446kB 82kB/s
Installing collected packages: ecdsa, pycrypto, paramiko, fabric
  Running setup.py install for pycrypto
  Running setup.py install for fabric
Successfully installed ecdsa-0.13 fabric-1.10.1 paramiko-1.15.2 pycrypto-2.6.1

简单使用

1.进入 fabric 官网 ，照着demo做，创建名字为 fabfile.py 的文件

fabfile.py
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from fabric.api import run

def host_type():
    run('uname -s')

2.执行命令 (其中 root@com.x.logservernode2 是远端机器的名字，根据需要修改需要ssh到的机器)

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xiaolongyuan@xiaolongdeMacBook-Air workspace_python$ fab -H localhost,root@com.x.logservernode2 host_type
Traceback (most recent call last):
  File "/usr/local/bin/fab", line 5, in <module>
    from pkg_resources import load_entry_point
  File "/System/Library/Frameworks/Python.framework/Versions/2.7/Extras/lib/python/pkg_resources.py", line 2603, in <module>
    working_set.require(__requires__)
  File "/System/Library/Frameworks/Python.framework/Versions/2.7/Extras/lib/python/pkg_resources.py", line 666, in require
    needed = self.resolve(parse_requirements(requirements))
  File "/System/Library/Frameworks/Python.framework/Versions/2.7/Extras/lib/python/pkg_resources.py", line 565, in resolve
    raise DistributionNotFound(req)  # XXX put more info here
pkg_resources.DistributionNotFound: paramiko>=1.10

报错了，但是我们能看到刚才安装的 paramiko是大于1.10的

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xiaolongyuan@xiaolongdeMacBook-Air workspace_python$ pip show paramiko
---
Metadata-Version: 2.0
Name: paramiko
Version: 1.15.2
Summary: SSH2 protocol library
Home-page: https://github.com/paramiko/paramiko/
Author: Jeff Forcier
Author-email: jeff@bitprophet.org
License: LGPL
Location: /Library/Python/2.7/site-packages
Requires: ecdsa, pycrypto

解决方法：

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xiaolongyuan@xiaolongdeMacBook-Air workspace_python$ sudo pip install -U setuptools

Downloading setuptools-15.2-py2.py3-none-any.whl (501kB)
    100% |████████████████████████████████| 503kB 150kB/s
Installing collected packages: setuptools
  Found existing installation: setuptools 0.6c12dev-r88846
    Uninstalling setuptools-0.6c12dev-r88846:
      Successfully uninstalled setuptools-0.6c12dev-r88846
Successfully installed setuptools-15.2

而升级 setptools 之前是mac系统自带的旧版本，所以有这个错误

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xiaolongyuan@xiaolongdeMacBook-Air workspace_python$ pip list | grep setuptools

setuptools (0.6c12dev-r88846)

3.再次执行，成功！

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xiaolongyuan@xiaolongdeMacBook-Air workspace_python$ fab -H localhost,root@com.x.logservernode2 host_type
[localhost] Executing task 'host_type'
[localhost] run: uname -s
[localhost] out: Darwin
[localhost] out:

[root@com.x.logservernode2] Executing task 'host_type'
[root@com.x.logservernode2] run: uname -s
[root@com.x.logservernode2] out: Linux
[root@com.x.logservernode2] out:


Done.
Disconnecting from root@com.x.logservernode2... done.
Disconnecting from localhost... done.
python
python