matrix-docker-ansible-deploy/roles/matrix-server/tasks/setup/setup_well_known.yml

- set_fact:
    matrix_well_known_file_path: "{{ matrix_static_files_base_path }}/.well-known/matrix/client"

# We need others to be able to read these directories too,
# so that matrix-nginx-proxy's nginx user can access the files.
#
# For running with another webserver, we recommend being part of the `matrix` group.
- name: Ensure Matrix static-files path exists
  file:
    path: "{{ item }}"
    state: directory
    mode: 0755
    owner: "{{ matrix_user_username }}"
    group: "{{ matrix_user_username }}"
  with_items:
    - "{{ matrix_well_known_file_path|dirname }}"

- name: Ensure Matrix /.well-known/matrix/client configured
  template:
    src: "{{ role_path }}/templates/well-known/matrix-client.j2"
    dest: "{{ matrix_well_known_file_path }}"
    mode: 0644
    owner: "{{ matrix_user_username }}"
    group: "{{ matrix_user_username }}"