As per bz 1695898 puppet-ceph still performs a function we need for RGW deployment. This is a bug to ensure we have the version we want to have in OSP13 overcloud images. https://post-office.corp.redhat.com/mailman/private/rhos-storage/2019-April/msg00019.html
Since the problem described in this bug report should be resolved in a recent advisory, it has been closed with a resolution of ERRATA. For information on the advisory, and where to find the updated files, follow the link below. If the solution does not work for you, open a new bug report. https://access.redhat.com/errata/RHBA-2019:1738