/var/log/bitninja-waf/*.log {
    daily
    missingok
    rotate 7
    compress
    delaycompress
    notifempty
    create 640 bitninja-waf bitninja-waf
    sharedscripts
    postrotate
        pid=/var/run/bitninja-waf.pid
        if [ -s "$pid" ]
        then
            kill -USR1 "$(cat $pid)"
        fi
        dir_to_remove=$(date +"%Y%m%d" --date="7 days ago")
        rm -Rf /var/log/bitninja-waf/$dir_to_remove
    endscript
}