Comment 1 for bug 1609866

The ceph package installs a /etc/logrotate.d/ceph file which would (if co-located with radosgw) rotate the files: https://pastebin.canonical.com/172231/

For the ceph-radosgw case, the ceph package is not installed (it's just a client after all) but nevertheless logging is configured to go to /var/log/ceph/radosgw.log - without any corresponding logrotate.d entry