/var/log/nginx-access.log
/var/log/nginx-error.log {
    su root django
    create 0640 www-data adm
    missingok
    rotate 5
    size 100M
    compress
    delaycompress
    notifempty
    sharedscripts
    postrotate
        nginx -s reopen
    endscript
}

/var/log/gunicorn.log {
    su root django
    create 0640 root django
    missingok
    rotate 5
    size 100M
    compress
    delaycompress
    notifempty
    postrotate
        kill -USR2 `cat /run/supervisord.pid`
    endscript
}