- name: Ensure Nextcloud administrator is in the 'admin' group
  command: >
    docker exec -u {{ nextcloud_docker_user }} {{ nextcloud_container }}
    php occ group:adduser admin {{ nextcloud_administrator_username }}
  register: add_admin_to_group
  changed_when: "'Added user' in (add_admin_to_group.stdout | default(''))"
  failed_when: >
    (add_admin_to_group.rc != 0) and
    ("is already a member of" not in (
      (add_admin_to_group.stderr | default('')) ~ (add_admin_to_group.stdout | default(''))
    ))