__init__.py

import os

from django.dispatch import receiver
from rosetta.signals import post_save


@receiver(post_save)
def restart_server(sender, **kwargs):
    os.system('initctl reload <myapp>')

myapp.conf

description "myapp"

start on (filesystem)
stop on runlevel [016]

respawn
console log
setuid nobody
setgid nogroup
chdir /var/www/myapp

exec /root/.virtualenvs/myapp/bin/gunicorn_django -c gunicorn.conf