gentoo-overlay/dev-util/jenkins-bin/files/jenkins-bin-r1.logrotate

/var/log/jenkins/jenkins.log /var/log/jenkins/access_log {
    compress
    dateext
    maxage 365
    rotate 99
    size=+4096k
    notifempty
    missingok
    create 644
    postrotate
        [ -r /etc/conf.d/jenkins ] && . /etc/conf.d/jenkins
        if [ -s /var/run/jenkins.pid ]; then
            JPID=$(cat /var/run/jenkins.pid)
            test -n "$(find /proc/$JPID -maxdepth 0 -user ${RUN_AS:-jenkins} 2>/dev/null)" && kill -s ALRM $JPID || :
        fi
    endscript
}