Logrotating

It is possible to use pgator with logrotate utility. When pgator is started in daemon mode, there is two parameters by default:

--pidfile=/var/run/pgator.pid
--lockfile=/var/run/pgator.lock

In pidfile daemon puts it PID and lockfile could be used to check if daemon is running. For instance, extracting pid from .pid file:

[ ! -f /var/run/pgator/pgator.pid ] || echo `cat /var/run/pgator/pgator.pid`

Daemon listens SIGMINRT+10 signal for logrotating:

kill -s SIGMINRT+10 <pid>

So, example logrotate config:

/home/dw/debianworld.ru/logs/nginx_*.log {
    daily                   # daily rotation
    missingok               # missing file isn't an error
    rotate 45               # save history for 45 days
    compress                # compress rotating files
    delaycompress           # current file isn't compressed
    notifempty              # don't process empty files
    create 640 dw www-data  # privileges and user of new file
    sharedscripts           # prerotate/postrotate are executed only once            
    postrotate              # reload pgator log
            [ ! -f /var/run/pgator/pgator.pid ] || kill -s SIGMINRT+10 `cat /var/run/pgator/pgator.pid`
    endscript
}