How to perform log rotation with Gunicorn?

Question

I searched through the net but didn't get the concrete answer or example of "how to use log rotation with Gunicorn?".
It would be great if someone provide an example.

Answer 1

Gunicorn's documentation says you can setup log rotation with logrotate (a linux command):

Logs can be automatically rotated and compressed using logrotate.

Doc link: http://docs.gunicorn.org/en/latest/install.html?highlight=logrotate#debian-gnu-linux

So I guess Gunicorn provides itself no way to rotate log.

Here is an example of my configuration file, placed in /etc/logrotate.d/my_app:

/path/to/my/logs/gunicorn-access.log /path/to/my/logs/gunicorn-error.log {
    monthly
    dateext
    dateformat -%Y-%m
    dateyesterday
    rotate 10000
}

Rotate monthly, add -YEAR-MONTH to rotated files, keep 10000 rotated files (see man logrotate).

The paths at first line are declared in my gunicorn_start script, something like:

/my/virtualenv/bin/gunicorn OPTIONS \
    --access-logfile /path/to/my/logs/gunicorn-access.log \
    --error-logfile /path/to/my/logs/gunicorn-error.log