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

---

- name: (Deprecation) Catch and report renamed settings
  ansible.builtin.fail:
    msg: >-
      Your configuration contains a variable, which now has a different name.
      Please change your configuration to rename the variable (`{{ item.old }}` -> `{{ item.new }}`).
  when: "item.old in vars"
  with_items:
    - {'old': 'matrix_synapse_admin_docker_repo', 'new': 'matrix_synapse_admin_container_self_build_repo'}
    - {'old': 'matrix_synapse_admin_container_self_build', 'new': 'matrix_synapse_admin_container_image_self_build'}
    - {'old': 'matrix_synapse_admin_container_self_build_repo', 'new': 'matrix_synapse_admin_container_image_self_build_repo'}
    - {'old': 'matrix_synapse_admin_public_endpoint', 'new': 'matrix_synapse_admin_path_prefix'}
    - {'old': 'matrix_synapse_admin_nginx_proxy_integration_enabled', 'new': '<removed>'}

- when: matrix_synapse_admin_container_labels_traefik_enabled | bool
  block:
    - name: Fail if required matrix-synapse-admin Traefik settings not defined
      ansible.builtin.fail:
        msg: >-
          You need to define a required configuration setting (`{{ item }}`).
      when: "vars[item] == ''"
      with_items:
        - matrix_synapse_admin_container_labels_traefik_hostname
        - matrix_synapse_admin_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_synapse_admin_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_synapse_admin_container_labels_traefik_path_prefix ends with a slash
      ansible.builtin.fail:
        msg: >-
          matrix_synapse_admin_container_labels_traefik_path_prefix (`{{ matrix_synapse_admin_container_labels_traefik_path_prefix }}`) must either be `/` or not end with a slash (e.g. `/synapse-admin`).
      when: "matrix_synapse_admin_container_labels_traefik_path_prefix != '/' and matrix_synapse_admin_container_labels_traefik_path_prefix[-1] == '/'"