okd/playbooks/openshift-master/private/registry_auth.yml

---
# This playbook is intended to be included from playbooks/updates/registry_auth.yml
- name: Update master registry_auth
  hosts: oo_masters_to_config
  serial: 1
  tasks:
  - import_role:
      name: openshift_control_plane
      tasks_from: registry_auth.yml