matrix-docker-ansible-deploy/roles/matrix-bridge-mautrix-whatsapp/tasks/init.yml

- set_fact:
    matrix_systemd_services_list: "{{ matrix_systemd_services_list + ['matrix-mautrix-whatsapp.service'] }}"
  when: matrix_mautrix_whatsapp_enabled|bool

# If the matrix-synapse role is not used, these variables may not exist.
- set_fact:
    matrix_synapse_container_extra_arguments: >
      {{ matrix_synapse_container_extra_arguments|default([]) }}
      +
      ["--mount type=bind,src={{ matrix_mautrix_whatsapp_config_path }}/registration.yaml,dst=/matrix-mautrix-whatsapp-registration.yaml,ro"]

    matrix_synapse_app_service_config_files: >
      {{ matrix_synapse_app_service_config_files|default([]) }}
      +
      {{ ["/matrix-mautrix-whatsapp-registration.yaml"] }}
  when: matrix_mautrix_whatsapp_enabled|bool