fabric deployment

fabfile.py

# coding: utf-8
import os

from fabric.api import run, env, cd, roles, task


env.roledefs['prod'] = ['myuser@host']
env.roledefs['staging'] = ['myuser@host']


def prod_env():
    env.key_filename = [os.path.join(os.environ['HOME'], '.ssh', 'id_rsa.pub')]
    env.user = 'myuser'
    env.project_root = '/home/myuser/myproject'
    env.shell = '/bin/bash -c'
    env.python = '/home/myuser/.virtualenvs/myproject/bin/python'
    env.pip = '/home/myuser/.virtualenvs/myproject/bin/pip'
    env.requirements = os.path.join(env.project_root, 'requirements.txt');


def stagging_env():
   # ...


def deploy_prod():
    prod_env()
    with cd(env.project_root):
        run('git pull origin master')
        run('{pip} install --upgrade -r {requirements}'.format(pip=env.pip,
                                                               requirements=env.requirements))
        run('{} manage.py migrate'.format(env.python))
        run("sudo supervisorctl restart myproject")


def deploy_stagging():
    # ...


@task
def deploy():
    if 'staging' in env.roles:
        deploy_stagging()
    elif 'prod' in env.roles:
        deploy_prod()
    else:
        raise ValueError('No valid role specified!')