+++ This bug was initially created as a clone of Bug #1763635 +++
Description of problem:
During a 4.1.z to 4.2.z upgrade the etcd-member.yaml master manifest is being rendered with an empty image reference by the MCO (which is where the template lives and the render happens).
As a result, etcd fails to run, etcd-quorum-guard is fooled and the upgrade completely disrupts the cluster as it loses quorum.
Version-Release number of selected component (if applicable):
from 4.1 onwards
Steps to Reproduce:
1. CI and or manual testing, 1/20 will fail
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.