Installing OpenShift Fails to Add Node With IP Address As Name

Issue

• Installing OpenShift Container Platform - set the nodes' names as ip addresses in the Ansible hosts file
• Installation completes fine but nodes do not get added to cluster or output of oc get nodes
• Scaleup playbook does not add nodes to cluster

[nodes]
10.x.y.z openshift_public_ip=10.x.y.z  openshift_ip=10.x.y.z openshift_public_hostname=node1.example.com openshift_hostname=node1.example.com connect_to=10.x.y.z openshift_schedulable=False

[new_nodes]
10.x.y.a  openshift_public_ip=10.x.y.a openshift_ip=10.x.y.a openshift_public_hostname=node3.example.com openshift_hostname=node3.example.com