Example gunicorn.conf.py

bind = "127.0.0.1:8000" # Or "unix:/tmp/gunicorn.sock"
daemon = False          # Whether work in the background
debug = False           # Some extra logging
logfile = "-"           # Name of the log file
loglevel = "info"       # The level at which to log
pidfile = None          # Path to a PID file
workers = 1             # Number of workers to initialize
umask = 0               # Umask to set when daemonizing
user = None             # Change process owner to user
group = None            # Change process group to group

def after_fork(server, worker):
    fmt = "worker=%s spawned pid=%s"
    server.log.info(fmt % (worker.id, worker.pid))

def before_fork(server, worker):
    fmt = "worker=%s spawning"
    server.log.info(fmt % worker.id)

def before_exec(server):
    serer.log.info("Forked child, reexecuting.")

Parameter Descriptions

after_fork(server, worker):

This is called by the worker after initialization.

before_fork(server, worker):

This is called by the worker just before forking.

before_exec(server):

This function is called before relaunching the master. This happens when the master receives a HUP or USR2 signal.

bind:

The address on which workers are listening. It can be a TCP address with a format of IP:PORT or a Unix socket address like unix:/path/to/socketfile.

daemon:

Whether or not to detach the server from the controlling terminal.

debug:

If True, only one worker will be launch and the variable wsgi.multiprocess will be set to False.

group:

The group in which worker processes will be launched.

logfile:

The path to the log file - (stdout) by default.

loglevel:

The level at which to log. info, debug, or error for instance. Only log messages of equal or greater severity are logged.

pidfile:

A file to store the master's PID.

umask:

Used to set the umask when daemonizing.

user:

The user as which worker processes will by launched.