- block:
  - name: is additonal Cell?
    set_fact:
      nova_additional_cell: false
  - block:
    - name: discover via nova_compute?
      set_fact:
        nova_cellv2_discovery_delegate_host: '{{ groups[''nova_compute''][0] }}'
      when:
      - groups['nova_compute'] is defined and (groups['nova_compute']|length>0)
    - name: discover via nova_ironic?
      set_fact:
        nova_cellv2_discovery_delegate_host: '{{ groups[''nova_ironic''][0] }}'
      when:
      - nova_cellv2_discovery_delegate_host is not defined
      - groups['nova_ironic'] is defined and (groups['nova_ironic']|length>0)
    - become: true
      changed_when: false
      command: '{{ container_cli }} exec nova_compute nova-manage cell_v2 discover_hosts
        --by-service'
      delegate_to: '{{ nova_cellv2_discovery_delegate_host }}'
      name: Discovering nova hosts
      when:
      - nova_cellv2_discovery_delegate_host is defined
    - set_fact:
        nova_cellv2_discovery_done: true
    name: check if discover hosts is required
    when:
    - not nova_additional_cell|bool
    - nova_cellv2_discovery_done is not defined