---
- name: Ensuring that compute node has UUID state defined
  hosts: nova_compute
  vars:
    nova_compute_id_file: /var/lib/nova/compute_id
  handlers:

    - name: Restart nova
      ansible.builtin.service:
        name: nova-compute
        state: restarted

  tasks:

    - name: Checking if compute file exist
      ansible.builtin.stat:
        path: "{{ nova_compute_id_file }}"
      register: _compute_id_status

    - name: Get list of existing hypervisors  # noqa: run-once[task]
      ansible.builtin.command: openstack --os-cloud default hypervisor list -f json -c ID -c "Hypervisor Hostname"
      run_once: true
      delegate_to: "{{ groups['utility_all'][0] }}"
      register: nova_hypervisors
      changed_when: false

    - name: Get node UUID if needed
      when: not _compute_id_status.stat.exists
      block:

        - name: Register hypervisors fact
          ansible.builtin.set_fact:
            nova_hv: "{{ nova_hypervisors.stdout | from_json | selectattr('Hypervisor Hostname', 'eq', ansible_facts['nodename']) }}"

        - name: Place node UUID to the expected location
          ansible.builtin.copy:
            dest: "{{ nova_compute_id_file }}"
            content: >
              {{ nova_hv[0]['ID'] }}
            owner: nova
            group: nova
            mode: "0640"
          when: nova_hv
          notify: Restart nova