- name: Restart Nebula
  systemd:
    name: nebula
    state: restarted
  when: inventory_hostname not in groups['nebula_lighthouse']
  listen: "restart nebula"

- name: Restart Lighthouse
  systemd:
    name: lighthouse
    state: restarted
  when: inventory_hostname in groups['nebula_lighthouse']
  listen: "restart nebula"