Description of problem:
Upgrade failed due to "MODULE FAILURE" at task "Gather Cluster facts" in play "Initialize cluster facts"

Version-Release number of the following components:
openshift-ansible-3.9.0-0.34.0.git.0.c7d9585.el7.noarch

ansible-2.4.2.0-2.el7.noarch

# ansible --version
ansible 2.4.2.0
  config file = /etc/ansible/ansible.cfg
  configured module search path = [u'/root/.ansible/plugins/modules', u'/usr/share/ansible/plugins/modules']
  ansible python module location = /usr/lib/python2.7/site-packages/ansible
  executable location = /usr/bin/ansible
  python version = 2.7.5 (default, May  3 2017, 07:55:04) [GCC 4.8.5 20150623 (Red Hat 4.8.5-14)]


How reproducible:
Always

Steps to Reproduce:
1. setup OCP 3.7 HA containerised RHEL cluster on EC2 with LB
2. upgrade containerized OCP on RHEL from v3.7.27 to v3.9.0-0.34.0
# ansible-playbook /usr/share/ansible/openshift-ansible/playbooks/byo/openshift-cluster/upgrades/v3_9/upgrade_control_plane.yml

Actual results:
Failure summary:


  1. Hosts:    ec2-xx.compute-1.amazonaws.com
     Play:     Initialize cluster facts
     Task:     Gather Cluster facts
     Message:  MODULE FAILURE


Expected results:
Upgrade succeeds

Additional info: