okd/playbooks/init/sanity_checks.yml

---
# l_sanity_check_hosts may be passed in during scale-up plays
- name: Verify Requirements
  hosts: oo_first_master
  roles:
  - role: openshift_facts
  - role: lib_utils
  tasks:
  # sanity_checks is a custom action plugin defined in lib_utils.
  # This module will loop through all the hostvars for each host
  # specified in check_hosts.
  # Since sanity_checks is an action_plugin, it executes on the control host.
  # Thus, sanity_checks cannot gather new information about any hosts.
  - name: Run variable sanity checks
    sanity_checks:
      check_hosts: "{{ l_sanity_check_hosts | default(groups['oo_all_hosts']) }}"
  # node_group_checks is a custom action plugin defined in lib_utils.
  - name: Validate openshift_node_groups and openshift_node_group_name
    node_group_checks: {}

# l_networkman_check_hosts may be passed in via playbooks/deploy_cluster.yml
# and master/node scaleup plays
- name: Verify Node NetworkManager
  # We only want to run this on new installs and node/master scaleup.
  hosts: "{{ l_networkman_check_hosts | default('all:!all') }}"
  tasks:
  - name: Check for NetworkManager service
    command: 'systemctl show NetworkManager'
    register: nm_show
    changed_when: false
    ignore_errors: True
  - fail: msg="Currently, NetworkManager must be installed and enabled prior to installation."
    when:
    - not ('ActiveState=active' in nm_show.stdout) | bool