Red Hat Bugzilla – 1543107 – OSP11 -> OSP12 upgrade: ceph-ansible might fail with: "stat: cannot stat '/var/run/ceph/ceph-mon.controller-2.asok': No such file or directory"
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-2018:0474