/opt/log/app/app.log.* {
         rotate 0
         missingok
         nomail
}

/opt/log/app/app.log.* {
        missingok
        nomail
postrotate
        /usr/bin/find /opt/log/app/ -name "app.log.*" -type f -mtime +0 -exec rm {} \;
endscript
}