Ansible playbook is failing with error last_checked_var: openshift_master_identity_providers;'ldap_password' is undefined in RHOCP 3

Issue

• While installing OpenShift Node TLS Bootstrapping auto-approver, the ansible playbook is failing at task Run variable sanity checks with the following error.

task path: /usr/share/ansible/openshift-ansible/playbooks/init/sanity_checks.yml:14
fatal: [node1.example.com]: FAILED! => {
    "msg": "last_checked_host: node1.example.com, last_checked_var: openshift_master_identity_providers;'ldap_password' is undefined"
}