matrix-docker-ansible-deploy/roles/custom/matrix-sygnal/tasks/validate_config.yml

---

- name: Fail if required Sygnal settings not defined
  ansible.builtin.fail:
    msg: >
      You need to define a required configuration setting (`{{ item }}`).
  when: "vars[item] == ''"
  with_items:
    - matrix_sygnal_hostname
    - matrix_sygnal_path_prefix
    - matrix_sygnal_container_network

- when: matrix_sygnal_container_labels_traefik_enabled | bool
  block:
    - name: Fail if required Sygnal Traefik settings not defined
      ansible.builtin.fail:
        msg: >-
          You need to define a required configuration setting (`{{ item }}`).
      when: "vars[item] == ''"
      with_items:
        - matrix_sygnal_container_labels_traefik_hostname
        - matrix_sygnal_container_labels_traefik_path_prefix

    # We ensure it doesn't end with a slash, because we handle both (slash and no-slash).
    # Knowing that `matrix_sygnal_container_labels_traefik_path_prefix` does not end with a slash
    # ensures we know how to set these routes up without having to do "does it end with a slash" checks elsewhere.
    - name: Fail if matrix_sygnal_container_labels_traefik_path_prefix ends with a slash
      ansible.builtin.fail:
        msg: >-
          matrix_sygnal_container_labels_traefik_path_prefix (`{{ matrix_sygnal_container_labels_traefik_path_prefix }}`) must either be `/` or not end with a slash (e.g. `/sygnal`).
      when: "matrix_sygnal_container_labels_traefik_path_prefix != '/' and matrix_sygnal_container_labels_traefik_path_prefix[-1] == '/'"

- name: Fail if no Sygnal apps defined
  ansible.builtin.fail:
    msg: >-
      Enabling Sygnal requires that you specify at least one app in `matrix_sygnal_apps`
  when: "matrix_sygnal_apps | length == 0"