Matrix Authentication Support for Jitsi

This extends the collection with support for seamless authentication at the Jitsi server using Matrix OpenID.

1. New role for installing the [Matrix User Verification Service](https://github.com/matrix-org/matrix-user-verification-service)
2. Changes to Jitsi role: Installing Jitsi Prosody Mods and configuring Jitsi Auth
3. Changes to Jitsi and nginx-proxy roles: Serving .well-known/element/jitsi from jitsi.DOMAIN
4. We updated the Jitsi documentation on authentication and added documentation for the user verification service.

roles/custom/matrix-user-verification-service/tasks/main.yml

@@ -0,0 +1,24 @@
+---
+
+- name: verify all necessary variables are present
+  assert:
+    that:
+      - matrix_user_verification_service_uvs_access_token is defined and matrix_user_verification_service_uvs_access_token|length
+      - matrix_user_verification_service_uvs_homeserver_url is defined and matrix_user_verification_service_uvs_homeserver_url|length
+    fail_msg: "Missing variable in {{ matrix_user_verification_service_ansible_name }} role"
+
+- block:
+    - when: run_setup | bool and matrix_user_verification_service_enabled | bool
+      ansible.builtin.include_tasks: "{{ role_path }}/tasks/setup_install.yml"
+  tags:
+    - setup-all
+    - setup-user-verification-service
+    - install-all
+    - install-user-verification-service
+
+- block:
+    - when: run_setup | bool and not matrix_user_verification_service_enabled | bool
+      ansible.builtin.include_tasks: "{{ role_path }}/tasks/setup_uninstall.yml"
+  tags:
+    - setup-all
+    - setup-user-verification-service

roles/custom/matrix-user-verification-service/tasks/setup_install.yml

@@ -0,0 +1,42 @@
+---
+
+- name: "Ensure Matrix User Verification Service paths exist"
+  ansible.builtin.file:
+    path: "{{ item.path }}"
+    state: directory
+    mode: 0750
+    owner: "{{ matrix_user_username }}"
+    group: "{{ matrix_user_groupname }}"
+  with_items:
+    - { path: "{{ matrix_user_verification_service_config_path }}", when: true }
+    - { path: "{{ matrix_user_verification_service_docker_src_files_path }}", when: "{{ matrix_user_verification_service_container_image_self_build }}" }
+  when: item.when | bool
+
+- name: Ensure Matrix User Verification Service image is pulled
+  community.docker.docker_image:
+    name: "{{ matrix_user_verification_service_docker_image }}"
+    source: "{{ 'pull' if ansible_version.major > 2 or ansible_version.minor > 7 else omit }}"
+    force_source: "{{ matrix_user_verification_service_docker_image_force_pull if ansible_version.major > 2 or ansible_version.minor >= 8 else omit }}"
+    force: "{{ omit if ansible_version.major > 2 or ansible_version.minor >= 8 else matrix_user_verification_service_docker_image_force_pull }}"
+  when: "not matrix_user_verification_service_container_image_self_build | bool"
+  register: result
+  retries: "{{ devture_playbook_help_container_retries_count }}"
+  delay: "{{ devture_playbook_help_container_retries_delay }}"
+  until: result is not failed
+
+#- block:
+# TODO
+#  when: "matrix_user_verification_service_container_image_self_build|bool"
+
+- name: write env file
+  ansible.builtin.template:
+    src: "{{ role_path }}/templates/.env.j2"
+    dest: "{{ matrix_user_verification_service_config_env_file }}"
+    mode: 0644
+
+- name: Ensure matrix-user-verification-service.service installed
+  ansible.builtin.template:
+    src: "{{ role_path }}/templates/systemd/matrix-user-verification-service.service.j2"
+    dest: "{{ devture_systemd_docker_base_systemd_path }}/{{ matrix_user_verification_service_systemd_service_name }}"
+    mode: 0644
+  notify: "reload matrix-user-verification-service"

roles/custom/matrix-user-verification-service/tasks/setup_uninstall.yml

@@ -0,0 +1,35 @@
+---
+
+- name: Check existence of matrix-user-verification-service service
+  stat:
+    path: "{{ matrix_systemd_path }}/{{ matrix_user_verification_service_systemd_service_name }}"
+  register: matrix_user_verification_service_service_stat
+
+- name: Ensure matrix-user-verification-service is stopped
+  service:
+    name: "{{ matrix_user_verification_service_systemd_service_basename }}"
+    state: stopped
+    daemon_reload: yes
+  register: stopping_result
+  when: "matrix_user_verification_service_service_stat.stat.exists|bool"
+
+- name: Ensure matrix-user-verification-service.service doesn't exist
+  file:
+    path: "{{ matrix_systemd_path }}/{{ matrix_user_verification_service_systemd_service_name }}"
+    state: absent
+  when: "matrix_user_verification_service_service_stat.stat.exists|bool"
+
+- name: Ensure systemd reloaded after matrix-user-verification-service.service removal
+  service:
+    daemon_reload: yes
+  when: "matrix_user_verification_service_service_stat.stat.exists|bool"
+
+- name: Ensure Matrix user-verification-service paths don't exist
+  file:
+    path: "{{ matrix_user_verification_service_base_path }}"
+    state: absent
+
+- name: Ensure user-verification-service Docker image doesn't exist
+  docker_image:
+    name: "{{ matrix_user_verification_service_docker_image }}"
+    state: absent