Fabric automated O & M tools for remote SSH deployment and system management

Fabric automated O & M tools for remote SSH deployment and system management

Fabric is a tool that implements SSH remote Application Deployment and system management based on the python (2.5-2.7) Library and command line. It is used to manage remote hosts in batches, you do not need to enter a password for login. You can write the host user name and password in a file. The following describes the specific instance.

Fabric Installation
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 # Check the installation result. If no exception is reported in the import module, the installation is successful.

Run different commands on different hosts. A simple script is as follows: (each defined function can be executed as a parameter)
#! /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': '123 ',
'Root @ 192.168.199.118: 22': '123'
}

@ 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 # Compare the results of these three executions.

Remote File push script:

#! /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': '123'
}


@ 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! ")

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