Description of problem: When deploying a new RGW service, we would like cephadm to be able to do the full bootstrapping of the RGW service for Single and Multisite deployments, which would take the deployed RGW into a production-ready state for the user. There are specific zone/zonegroup parameters that would normally be modified by the user during the deployment of the RGW service in production, as an example: Customers that want to use virtual host path access to the buckets, need to configure the "hostnames:" to specify the fqdns. Enabling/Disabling zone/zonegroup features can be another example: https://docs.ceph.com/en/latest/radosgw/multisite/#zone-features We also have placement targets in zonegroups and storage classes in zones that would be very useful, but this could be more complex ,so it could be discussed further down the line
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