okd/roles/docker/tasks/main.yml

---
# These tasks dispatch to the proper set of docker tasks based on the
# inventory:openshift_docker_use_system_container variable

- include: udev_workaround.yml
  when: docker_udev_workaround | default(False) | bool

- set_fact:
    l_use_system_container: "{{ openshift.docker.use_system_container | default(False) }}"
    l_use_crio: "{{ openshift_use_crio | default(False) }}"
    l_use_crio_only: "{{ openshift_use_crio_only | default(False) }}"

- when:
    - openshift_deployment_type == 'openshift-enterprise'
  assert:
    that:
      - "openshift_image_tag is defined"
    msg: >
      openshift_image_tag is a required inventory variable when installing openshift-enterprise

- name: Use Package Docker if Requested
  include: package_docker.yml
  when:
    - not l_use_system_container
    - not l_use_crio_only

- name: Use System Container Docker if Requested
  include: systemcontainer_docker.yml
  when:
    - l_use_system_container
    - not l_use_crio_only

- name: Add CRI-O usage Requested
  include: systemcontainer_crio.yml
  when:
    - l_use_crio
    - inventory_hostname in groups['oo_masters_to_config'] or inventory_hostname in groups['oo_nodes_to_config']