https://github.com/openshift/openshift-ansible/pull/8112
Test with openshift-ansible-3.7.51-1.git.0.f9b681c.el7.noarch , failed to upgrade, blocked by bz1583151
Verified openshift-ansible-3.7.52-1.git.0.3fddee4.el7.noarch could build successfully after upgraded cluster to 3.7, registry has no unnecessary env vars
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-2018:1798