Comment 3 for bug 1926498

It may seem a bit confusing, but where radosgw runs via systemd rather than upstart - the client id is actually rgw.<hostname>. The charm provides a convenience of mapping client.radosgw.gateway (legacy client id) into the new client id mapping transparently. Thus, when specifying client.radosgw.gateway it will be mapped the the client.rgw.<hostname> section itself.

As such, this setting applies properly to the ceph.conf. You can audit this by using the admin socket like so:

# The current values of the rgw service
root@juju-504a16-zaza-fc8300987aa2-7:/etc/ceph# ceph daemon /var/run/ceph/ceph-client.rgw.juju-504a16-zaza-fc8300987aa2-7.376436.93842140922864.asok config get rgw_relaxed_s3_bucket_names
{
    "rgw_relaxed_s3_bucket_names": "true"
}

Where the admin socket name will actually vary, but will be in the /var/run/ceph directory.