/var/log/munin/munin-graph.log
/var/log/munin/munin-html.log
/var/log/munin/munin-nagios.log
/var/log/munin/munin-limits.log
/var/log/munin/munin-update.log {
        daily
        missingok
        rotate 7
        compress
        copytruncate
        notifempty
        create 640 munin munin
        su munin munin
}