Running upgrade_nodes.yml fails with 'first_master_client_binary' is undefined

Issue

• When running
  • /usr/share/ansible/openshift-ansible/playbooks/byo/openshift-cluster/upgrades/v3_10/upgrade_nodes.yml or
  • /usr/share/ansible/openshift-ansible/playbooks/byo/openshift-cluster/upgrades/v3_9/upgrade_nodes.yml it fails with following error:

  1. Hosts:    abc03.example.com
     Play:     Drain and upgrade nodes
     Task:     Check for GlusterFS cluster health
     Message:  The task includes an option with an undefined variable. The error was: 'first_master_client_binary' is undefined

               The error appears to have been in '/usr/share/ansible/openshift-ansible/roles/openshift_storage_glusterfs/tasks/cluster_health.yml': line 4, column 3, but may
               be elsewhere in the file depending on the exact syntax problem.

               The offending line appears to be:

               # lib_utils/library/glusterfs_check_containerized.py
               - name: Check for GlusterFS cluster health
                 ^ here

               exception type: <class 'ansible.errors.AnsibleUndefinedVariable'>
               exception: 'first_master_client_binary' is undefined