1. fabric
http://fabfile.org/

2. About
Fabric is a Python library and command-line
tool for streamlining the use of SSH for
application deployment or systems
administration tasks.

3. Features
• Executing local or remote shell commands
(normally or via sudo)
• Processing output
• Uploading/downloading files
• Prompting for input, aborting execution, etc
• Multiple host, flexible configuration

4. Executing commands
fabfile.py:
from fabric.api import *
env.hosts = ['no1.troolee.com']
def deploy():
with cd('cnc'):
run('./update.sh')
$ fab deploy
$ fab -H system1,system2,system3 -- uname -a

5. Per-task arguments
def foo(bar=‘foobar’, lorem=‘ipsum’):
pass
def baz():
pass
$ fab foo:Hello,lorem=World baz

6. env vs settings
from fabric.api import settings, run, env
env.hosts = ['example.com']
def exists(path):
with settings(warn_only=True):
return run('test -e %s' % path)
$ fab exists:/home
$ fab exists:/home,host=‘example.net’

7. Operations
• get/put
• local/run/sudo
• open_shell
• prompt/require
• reboot

8. Context Managers
• cd/lcd
• path/prefix
• settings
with prefix('workon myenv'):
run('ls')
with prefix('source /some/script'):
run('touch a_file')
$ workon myenv && ls
$ workon myenv && source /some/script && touch a_file

9. Decorators
• hosts/roles/with_settings
• task
• serial/parallel
• with_settings
• runs_once

10. Q&A

11. Thanks.