matrix-docker-ansible-deploy/roles/matrix-dynamic-dns/tasks/validate_config.yml

---

- name: Fail if required settings not defined in configuration blocks
  fail:
    msg: >-
      You need to define a required configuration setting (`{{ item }}`).
  when: "'domain' not in configuration == '' or 'provider' not in configuration == '' or 'protocol' not in configuration == ''"
  with_items: "{{ matrix_dynamic_dns_domain_configurations }}"
  loop_control:
    loop_var: configuration