matrix-docker-ansible-deploy/roles/matrix-registration/tasks/validate_config.yml

---

- name: Fail if required matrix-registration settings not defined
  fail:
    msg: >
      You need to define a required configuration setting (`{{ item }}`) for using matrix-registration.
  when: "vars[item] == ''"
  with_items:
    - "matrix_registration_shared_secret"
    - "matrix_registration_admin_secret"
    - "matrix_registration_server_location"