Why are regions and zone labels not getting assigned by the ansible even if the entries are made in the /etc/ansible/hosts ?

Issue

• The region and zone label entries don't get assigned to the node by the ansible even if the entries are made in the /etc/ansible/hosts

[root@ose3-master ~]# oc get nodes
NAME                      LABELS                                           STATUS
ose3-master.example.com   kubernetes.io/hostname=ose3-master.example.com   Ready
ose3-node1.example.com    kubernetes.io/hostname=ose3-node1.example.com    Ready
ose3-node2.example.com    kubernetes.io/hostname=ose3-node2.example.com    Ready

• Nodes not labeled during installation in Openshift.
• Nodes do not get labelled with ansible installation