Bug 1810203

Improve documentation to make the RGW configuration more explicit and intuitive so that we avoid customers using Ceph for Block to deploy RGW instead of Swift.


+++ This bug was initially created as a clone of Bug #1758161 +++

We seem to have a relatively big number of deployments where people is deploying Ceph but keeping Swift for object storage.

While this might be wanted, it looks like many just don't enable RGW (to replace Swift) despite docs having this documented as just one additional step in the deployment guide [1].

We need to either review the docs to make it obvious that "object storage" is RGW and will just replace Swift or change the code for RGW to be deployed by default when Ceph is enabled.

1. https://access.redhat.com/documentation/en-us/red_hat_openstack_platform/13/html/deploying_an_overcloud_with_containerized_red_hat_ceph/enable-ceph-overcloud#ceph-rgw

--- Additional comment from John Fulton on 2019-10-10 15:08:40 CEST ---

If rgw is enabled, ensure swift is not installed on controller nodes.

--- Additional comment from Giulio Fidente on 2019-10-10 15:26:30 CEST ---

(In reply to John Fulton from comment #1)
> If rgw is enabled, ensure swift is not installed on controller nodes.

this is already the case, purpose of the rfe I think is to always enable rgw (to replace swift) when ceph is enabled

--- Additional comment from Gregory Charot on 2020-03-04 18:18:44 CET ---

Pushing proper integration to 17. Changing a default should be designed with extra considerations.

In the mean time I think we can be more explicit in the docs.