matrix-docker-ansible-deploy/roles/matrix-server/tasks/register_user.yml

---

- name: Fail if playbook called incorrectly
  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
  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
  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
  service:
    name: matrix-synapse
    state: started
    daemon_reload: yes
  register: start_result

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

- name: Register user
  shell: "/usr/local/bin/matrix-synapse-register-user {{ username }} {{ password }} {{ '1' if admin == 'yes' else '0' }}"