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

---

- name: Fail if playbook called incorrectly
  ansible.builtin.fail:
    msg: "The `username` variable needs to be provided to this playbook, via --extra-vars"
  when: "username is not defined or username == '<your-username>'"

- name: Fail if playbook called incorrectly
  ansible.builtin.fail:
    msg: "The `password` variable needs to be provided to this playbook, via --extra-vars"
  when: "password is not defined or password == '<your-password>'"

- name: Fail if playbook called incorrectly
  ansible.builtin.fail:
    msg: "The `admin` variable needs to be provided to this playbook, via --extra-vars"
  when: "admin is not defined or admin not in ['yes', 'no']"

- name: Ensure matrix-synapse is started
  ansible.builtin.service:
    name: matrix-synapse
    state: started
    daemon_reload: true
  register: start_result

- name: Wait a while, so that Synapse can manage to start
  ansible.builtin.pause:
    seconds: 7
  when: "start_result.changed"

- name: Register user
  ansible.builtin.command:
    cmd: "{{ matrix_synapse_bin_path }}/register-user {{ username | quote }} {{ password | quote }} {{ '1' if admin == 'yes' else '0' }}"
  register: matrix_synapse_register_user_result
  changed_when: matrix_synapse_register_user_result.rc == 0