No action to create a radosgw user

[Peter Matulis]

I do not see an action to create a Ceph Object Gateway service user. I'm looking for an action that can perform the equivalent of:

$ juju ssh ceph-mon/0 'sudo radosgw-admin user create --uid="ubuntu" --display-name="Charmed Ceph"'

Naturally, the Ceph RADOS Gateway (ceph-radosgw charm) is a requirement. This should be stated in the action's description.

Typically the generated access key and secret key for the user will be subsequently needed. Is it possible to have the action supply these in its output?

$ juju ssh ceph-mon/0 'sudo radosgw-admin user info --uid ubuntu' \
   | grep -e access_key -e secret_key