gunicorn virtualenv init.d script (could be simpler with upstart)

yourapp

#! /bin/bash
### BEGIN INIT INFO
# Provides:          yourapp
# Required-Start:    nginx
# Required-Stop:
# Default-Start:     2 3 4 5
# Default-Stop:      0 1 6
# Short-Description: The main django process
# Description:       The gunicorn process that receives HTTP requests
#                    from nginx
#
### END INIT INFO
#
# Author:       mle <[email protected]>
#
APPNAME=yourapp
USER=youruser
PATH=/bin:/usr/bin:/sbin:/usr/sbin
ACTIVATE=/home/www/project/env/bin/activate
APPMODULE=yourproject.wsgi:application
DAEMON=gunicorn
BIND=127.0.0.1:8000
PIDFILE=/var/run/gunicorn.pid
LOGFILE=/var/log/$DAEMON.log
WORKERS=2


. /lib/lsb/init-functions


if [ -e "/etc/default/$APPNAME" ]
then
    . /etc/default/$APPNAME
fi


case "$1" in
  start)
        log_daemon_msg "Starting deferred execution scheduler" "$APPNAME"
        source $ACTIVATE
        $DAEMON --daemon --bind=$BIND --pid=$PIDFILE --workers=$WORKERS --user=$USER --log-file=$LOGFILE $APPMODULE
        log_end_msg $?
    ;;
  stop)
        log_daemon_msg "Stopping deferred execution scheduler" "APPNAME"
        killproc -p $PIDFILE $DAEMON
        log_end_msg $?
    ;;
  force-reload|restart)
    $0 stop
    $0 start
    ;;
  status)
    status_of_proc -p $PIDFILE $DAEMON && exit 0 || exit $?
    ;;
  *)
    echo "Usage: /etc/init.d/$APPNAME {start|stop|restart|force-reload|status}"
    exit 1
    ;;
esac

exit 0

For anyone wanting something like this on Ubuntu 16.04, systemd is the way to go!
I think it would be fairly trivial to convert this to gunicorn.. man systemd.service is your friend.

[Unit]
Description=waitress wsgi app server for django
After=nginx.target

[Service]
Type=simple
PermissionsStartOnly=true
User=django
ExecStart=/home/django/django_env.sh waitress-serve --unix-socket=/tmp/waitress.sock --unix-socket-perms=660 --threads=4 myproj.wsgi:application
TimeoutStartSec=20
TimeoutStopSec=10
KillMode=process
KillSignal=SIGINT

[Install]
WantedBy=multi-user.target

Looks very promising, thank you.

Thanks for this script!

In time I'd add a PYTHONPATH env var otherwise the gunicorn doesn't find the module nor wsgi file.

For me it is firing this error:
ModuleNotFoundError: No module named 'agenda'

So i've managed to add the following line to your script:

[...]
LOGFILE=/var/log/$DAEMON.log
WORKERS=2
PYTHONPATH=/path/where/myapp/resides
[...]

It solved the problem. Hope it helps for someone else.