matrix-docker-ansible-deploy/roles/matrix-user-creator/tasks/util/ensure_user_registered_synapse.yml

---

- name: Ensure Synapse user registered - {{ user.username | quote }}
  ansible.builtin.command:
    cmd: |-
      {{ matrix_host_command_docker }} exec matrix-synapse
      register_new_matrix_user
      -u  {{ user.username | quote }}
      -p {{ user.initial_password | quote }}
      -c /data/homeserver.yaml
      {% if user.initial_type == 'admin' %}
        --admin
      {% else %}
        --no-admin
        {% if user.initial_type != 'user' %}
          --user_type={{ user.initial_type | quote }}
        {% endif %}
      {% endif %}
      http://localhost:{{ matrix_synapse_container_client_api_port }}
  register: matrix_synapse_register_user_result
  changed_when: matrix_synapse_register_user_result.rc == 0 and 'User ID already taken' not in matrix_synapse_register_user_result.stdout
  failed_when: matrix_synapse_register_user_result.rc != 0 and 'User ID already taken' not in matrix_synapse_register_user_result.stdout