okd/playbooks/container-runtime/private/build_container_groups.yml

---
# l_build_container_groups_hosts is passed in via prerequisites.yml during
# etcd scaleup plays.
- name: create oo_hosts_containerized_managed_true host group
  hosts: "{{ l_build_container_groups_hosts | default('oo_all_hosts:!oo_nodes_to_config') }}"
  tasks:
  - group_by:
      key: oo_hosts_containerized_managed_{{ (openshift_is_containerized | default(False)) | ternary('true','false') }}