my base fabfile

fabfile.py

from __future__ import with_statement
from fabric.api import *
from fabric.contrib import files

env.roledefs = {
    'prod': ['[email protected]'],
    'staging': ['[email protected]'],
}

CODE_DIR = '/home/ExampleProject'
PID_FILE = '/tmp/gunicorn_example-project'
GUNICORN_WORKERS = 8
GUNICORN_BIND = '127.0.0.1:8000'

def gunicorn_restart(strength='hard'):
    if files.exists(PID_FILE) and strength == 'soft':
            run('kill -HUP `cat %s`' % PID_FILE)
    else:
        with cd(CODE_DIR):
            run('bin/gunicorn ExampleProject.wsgi -w %d -p %s -D -b %s' % (
                GUNICORN_WORKERS,
                PID_FILE,
                GUNICORN_BIND
            ))

def nginx_reload():
    run('service nginx reload')

def pull():
    with cd(CODE_DIR):
        run('git pull')

def pip_update():
    with cd(CODE_DIR):
        run('bin/pip install -r requirements.txt')

def collect_static():
    with cd(CODE_DIR):
        run('bin/python manage.py collectstatic --noinput')

def migrate():
    with cd(CODE_DIR):
        run('bin/python manage.py migrate')

def deploy(level='web'):

        execute(pull)
        execute(pip_update)
        execute(collect_static)

        if level == 'all':
            execute(migrate)

        if level == 'all' or level == 'web':
            execute(nginx_reload)
            execute(gunicorn_restart, 'soft')

def tail_nginx():
    run('tail -f /var/log/nginx/access.log')