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

---

- name: (Deprecation) Catch and report renamed coturn 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_coturn_docker_network', 'new': 'matrix_coturn_container_network'}
    - {'old': 'matrix_coturn_container_stun_plain_host_bind_port', 'new': 'superseded by matrix_coturn_container_stun_plain_host_bind_port_tcp and matrix_coturn_container_stun_plain_host_bind_port_udp'}
    - {'old': 'matrix_coturn_container_stun_tls_host_bind_port', 'new': 'superseded by matrix_coturn_container_stun_tls_host_bind_port_tcp and matrix_coturn_container_stun_tls_host_bind_port_udp'}
    - {'old': 'matrix_coturn_container_image_name_prefix', 'new': 'matrix_coturn_docker_image_registry_prefix'}

- name: Fail if matrix_coturn_authentication_method is invalid
  ansible.builtin.fail:
    msg: >-
      Invalid authentication method specified in `matrix_coturn_authentication_method`
  when: "matrix_coturn_authentication_method not in ['auth-secret', 'lt-cred-mech']"

- name: Fail if required coturn settings not defined
  ansible.builtin.fail:
    msg: >-
      You need to define a required configuration setting (`{{ item.name }}`).
  when: "item.when | bool and vars[item.name] == ''"
  with_items:
    - {'name': 'matrix_coturn_turn_static_auth_secret', when: "{{ matrix_coturn_authentication_method == 'auth-secret' }}"}
    - {'name': 'matrix_coturn_lt_cred_mech_username', when: "{{ matrix_coturn_authentication_method == 'lt-cred-mech' }}"}
    - {'name': 'matrix_coturn_lt_cred_mech_password', when: "{{ matrix_coturn_authentication_method == 'lt-cred-mech' }}"}