**** create file:  sudo vi /etc/logrotate.d/descriptive_name_here
**** code example, e.g., this one is symfony:

/var/www/current/var/logs/prod.log {
        su ubuntu www-data
        daily
        missingok
        rotate 14
        compress
}

**** IMPORTANT: first line is path to application's log, so change to match
**** change "su ubuntu www-data" to user/group application runs under, i.e., www-data www-data for nginx
**** test config with sudo logrotate --d /etc/logrotate.d/file_name_from_above
**** option force rotation:  sudo logrotate --force /etc/logrotate.d/file_name