Description of problem:

Hi,

I'm opening this as based on the upstream bug, which was however closed due to inactivity:

[ cephadm/rgw: Add rgw_zonegroup to RGWSpec ]
https://tracker.ceph.com/issues/48340

It looks like with cephadm there is no option to specify a custom zonegroup:

https://github.com/ceph/ceph/blob/master/src/pybind/mgr/cephadm/services/cephadmservice.py#L767-L781

~~~
        # set rgw_realm and rgw_zone, if present
        if spec.rgw_realm:
            ret, out, err = self.mgr.check_mon_command({
                'prefix': 'config set',
                'who': f"{utils.name_to_config_section('rgw')}.{spec.service_id}",
                'name': 'rgw_realm',
                'value': spec.rgw_realm,
            })
        if spec.rgw_zone:
            ret, out, err = self.mgr.check_mon_command({
                'prefix': 'config set',
                'who': f"{utils.name_to_config_section('rgw')}.{spec.service_id}",
                'name': 'rgw_zone',
                'value': spec.rgw_zone,
            })
~~~

As according to the upstream bug, it looks we're hardcoding the zonegroup default everywhere.


However in RHCS 4 it was possible to set it using ceph-ansible (group_vars directory):

~~~
rgw_zone: zone1
rgw_zonegroup: prod
rgw_realm: realm1
~~~

These options are then reflected in the corresponding rgw client section of the ceph.conf.

Could you please check if it's feasible to implement a way to specify  a custom zonegroup using RHCS 5 tooling?

Thanks in advance,
Sergii