Supplied fix and backport is here: https://github.com/openshift/openshift-ansible/pull/6074/files
Verified this bug with openshift-ansible-3.6.173.0.75-1.git.0.0a44128.el7.noarch, and PASS.
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-2017:3255