Added Google Messager Bridge (#2794)

* intial commit

* changed

* Reorderd

* merge old changes

* added changes to matrix_servers

* Remove duplicate discord

* Update main.yml

* added google message to configuring-playbook.md

* Changed docs to add new changes

* Changed bug?

* Removed problem j2 values

* Rename a service files

* change how password hash string

* Changed port number

* Change how the local part works

* Revert "Merge pull request #8 from shreyasajj/wsproxy"

This reverts commit bb1b8fc67c, reversing
changes made to cce6ba5f9d.

---------

Co-authored-by: Shreyas Ajjarapu <github.tzarina@aleeas.com>

README.md

@@ -103,6 +103,7 @@ Bridges can be used to connect your matrix installation with third-party communi
 | [mautrix-discord](https://github.com/mautrix/discord) | x | Bridge for bridging your Matrix server to [Discord](https://discord.com/) | [Link](docs/configuring-playbook-bridge-mautrix-discord.md) |
 | [mautrix-slack](https://github.com/mautrix/slack) | x | Bridge for bridging your Matrix server to [Slack](https://slack.com/) | [Link](docs/configuring-playbook-bridge-mautrix-slack.md) |
 | [mautrix-telegram](https://github.com/mautrix/telegram) | x | Bridge for bridging your Matrix server to [Telegram](https://telegram.org/) | [Link](docs/configuring-playbook-bridge-mautrix-telegram.md) |
+| [mautrix-gmessages](https://github.com/mautrix/gmessages) | x | Bridge for bridging your Matrix server to [Google Messages](https://messages.google.com/) | [Link](docs/configuring-playbook-bridge-mautrix-gmessages.md) |
 | [mautrix-whatsapp](https://github.com/mautrix/whatsapp) | x | Bridge for bridging your Matrix server to [WhatsApp](https://www.whatsapp.com/) | [Link](docs/configuring-playbook-bridge-mautrix-whatsapp.md) |
 | [mautrix-facebook](https://github.com/mautrix/facebook) | x | Bridge for bridging your Matrix server to [Facebook](https://facebook.com/) | [Link](docs/configuring-playbook-bridge-mautrix-facebook.md) |
 | [mautrix-twitter](https://github.com/mautrix/twitter) | x | Bridge for bridging your Matrix server to [Twitter](https://twitter.com/) | [Link](docs/configuring-playbook-bridge-mautrix-twitter.md) |

docs/configuring-playbook-bridge-mautrix-gmessages.md

@@ -0,0 +1,38 @@
+# Setting up Mautrix gmessages (optional)
+
+The playbook can install and configure [mautrix-gmessages](https://github.com/mautrix/gmessages) for you.
+
+See the project's [documentation](https://docs.mau.fi/bridges/go/gmessages/index.html) to learn what it does and why it might be useful to you.
+
+Use the following playbook configuration:
+
+```yaml
+matrix_mautrix_gmessages_enabled: true
+``` 
+
+## Set up Double Puppeting
+
+If you'd like to use [Double Puppeting](https://docs.mau.fi/bridges/general/double-puppeting.html) (hint: you most likely do), you have 2 ways of going about it.
+
+### Method 1: automatically, by enabling Shared Secret Auth
+
+The bridge will automatically perform Double Puppeting if you enable [Shared Secret Auth](configuring-playbook-shared-secret-auth.md) for this playbook.
+
+This is the recommended way of setting up Double Puppeting, as it's easier to accomplish, works for all your users automatically, and has less of a chance of breaking in the future.
+
+### Method 2: manually, by asking each user to provide a working access token
+
+**Note**: This method for enabling Double Puppeting can be configured only after you've already set up bridging (see [Usage](#usage)).
+
+When using this method, **each user** that wishes to enable Double Puppeting needs to follow the following steps:
+
+- retrieve a Matrix access token for yourself. Refer to the documentation on [how to do that](obtaining-access-tokens.md).
+
+- send the access token to the bot. Example: `login-matrix MATRIX_ACCESS_TOKEN_HERE`
+
+- make sure you don't log out the `Mautrix-gmessages` device some time in the future, as that would break the Double Puppeting feature
+
+
+## Usage
+
+You then need to start a chat with `@gmessagesbot:YOUR_DOMAIN` (where `YOUR_DOMAIN` is your base domain, not the `matrix.` domain).

docs/configuring-playbook.md

@@ -114,6 +114,8 @@ When you're done with all the configuration you'd like to do, continue with [Ins
 
 - [Setting up Mautrix Slack bridging](configuring-playbook-bridge-mautrix-slack.md) (optional)
 
+- [Setting up Mautrix Google Messages bridging](configuring-playbook-bridge-mautrix-gmessages.md) (optional)
+
 - [Setting up Mautrix Whatsapp bridging](configuring-playbook-bridge-mautrix-whatsapp.md) (optional)
 
 - [Setting up Mautrix Facebook bridging](configuring-playbook-bridge-mautrix-facebook.md) (optional)

docs/container-images.md

@@ -46,6 +46,8 @@ These services are not part of our default installation, but can be enabled by [
 
 - [mautrix/telegram](https://mau.dev/mautrix/telegram/container_registry) - the [mautrix-telegram](https://github.com/mautrix/telegram) bridge to [Telegram](https://telegram.org/) (optional)
 
+- [mautrix/gmessages](https://mau.dev/mautrix/gmessages/container_registry) - the [mautrix-gmessages](https://github.com/mautrix/gmessages) bridge to [Google Messages](https://messages.google.com/) (optional)
+
 - [mautrix/whatsapp](https://mau.dev/mautrix/whatsapp/container_registry) - the [mautrix-whatsapp](https://github.com/mautrix/whatsapp) bridge to [Whatsapp](https://www.whatsapp.com/) (optional)
 
 - [mautrix/facebook](https://mau.dev/mautrix/facebook/container_registry) - the [mautrix-facebook](https://github.com/mautrix/facebook) bridge to [Facebook](https://facebook.com/) (optional)

docs/self-building.md

@@ -32,6 +32,7 @@ Possibly outdated list of roles where self-building the Docker image is currentl
 - `matrix-bridge-mautrix-googlechat`
 - `matrix-bridge-mautrix-telegram`
 - `matrix-bridge-mautrix-signal`
+- `matrix-bridge-mautrix-gmessages`
 - `matrix-bridge-mautrix-whatsapp`
 - `matrix-bridge-mx-puppet-steam`
 - `matrix-bot-mjolnir`

group_vars/matrix_servers

@@ -101,6 +101,8 @@ matrix_homeserver_container_extra_arguments_auto: |
     +
     (['--mount type=bind,src=' + matrix_mautrix_twitter_config_path + '/registration.yaml,dst=/matrix-mautrix-twitter-registration.yaml,ro'] if matrix_mautrix_twitter_enabled else [])
     +
+    (['--mount type=bind,src=' + matrix_mautrix_gmessages_config_path + '/registration.yaml,dst=/matrix-mautrix-gmessages-registration.yaml,ro'] if matrix_mautrix_gmessages_enabled else [])
+    +
     (['--mount type=bind,src=' + matrix_mautrix_whatsapp_config_path + '/registration.yaml,dst=/matrix-mautrix-whatsapp-registration.yaml,ro'] if matrix_mautrix_whatsapp_enabled else [])
     +
     (['--mount type=bind,src=' + matrix_mx_puppet_discord_config_path + '/registration.yaml,dst=/matrix-mx-puppet-discord-registration.yaml,ro'] if matrix_mx_puppet_discord_enabled else [])
@@ -158,6 +160,8 @@ matrix_homeserver_app_service_config_files_auto: |
     +
     (['/matrix-mautrix-twitter-registration.yaml'] if matrix_mautrix_twitter_enabled else [])
     +
+    (['/matrix-mautrix-gmessages-registration.yaml'] if matrix_mautrix_gmessages_enabled else [])
+    +
     (['/matrix-mautrix-whatsapp-registration.yaml'] if matrix_mautrix_whatsapp_enabled else [])
     +
     (['/matrix-mx-puppet-discord-registration.yaml'] if matrix_mx_puppet_discord_enabled else [])
@@ -270,6 +274,8 @@ devture_systemd_service_manager_services_list_auto: |
     +
     ([{'name': 'matrix-mautrix-twitter.service', 'priority': 2000, 'groups': ['matrix', 'bridges', 'mautrix-twitter']}] if matrix_mautrix_twitter_enabled else [])
     +
+    ([{'name': 'matrix-mautrix-gmessages.service', 'priority': 2000, 'groups': ['matrix', 'bridges', 'mautrix-gmessages']}] if matrix_mautrix_gmessages_enabled else [])
+    +
     ([{'name': 'matrix-mautrix-whatsapp.service', 'priority': 2000, 'groups': ['matrix', 'bridges', 'mautrix-whatsapp']}] if matrix_mautrix_whatsapp_enabled else [])
     +
     ([{'name': 'matrix-mx-puppet-discord.service', 'priority': 2000, 'groups': ['matrix', 'bridges', 'mx-puppet-discord']}] if matrix_mx_puppet_discord_enabled else [])
@@ -1153,6 +1159,51 @@ matrix_mautrix_twitter_database_password: "{{ '%s' | format(matrix_homeserver_ge
 #
 ######################################################################
 
+######################################################################
+#
+# matrix-bridge-mautrix-gmessages
+#
+######################################################################
+
+# We don't enable bridges by default.
+matrix_mautrix_gmessages_enabled: false
+
+matrix_mautrix_gmessages_container_image_self_build: "{{ matrix_architecture not in ['arm64', 'amd64'] }}"
+
+matrix_mautrix_gmessages_systemd_required_services_list: |
+  {{
+    ['docker.service']
+    +
+    ['matrix-' + matrix_homeserver_implementation + '.service']
+    +
+    ([devture_postgres_identifier ~ '.service'] if devture_postgres_enabled else [])
+    +
+    (['matrix-nginx-proxy.service'] if matrix_nginx_proxy_enabled else [])
+  }}
+
+matrix_mautrix_gmessages_appservice_token: "{{ '%s' | format(matrix_homeserver_generic_secret_key) | password_hash('sha512', 'gmessage.as.token', rounds=655555) | to_uuid }}"
+
+matrix_mautrix_gmessages_homeserver_token: "{{ '%s' | format(matrix_homeserver_generic_secret_key) | password_hash('sha512', 'gmessage.hs.token', rounds=655555) | to_uuid }}"
+
+matrix_mautrix_gmessages_login_shared_secret: "{{ matrix_synapse_ext_password_provider_shared_secret_auth_shared_secret if matrix_synapse_ext_password_provider_shared_secret_auth_enabled else '' }}"
+
+# People using an external Prometheus server will need to toggle all of these to be able to consume metrics remotely:
+# - `matrix_mautrix_gmessages_metrics_enabled`
+# - `matrix_mautrix_gmessages_proxying_metrics_enabled`
+# - `matrix_nginx_proxy_proxy_matrix_metrics_enabled`
+matrix_mautrix_gmessages_metrics_enabled: "{{ prometheus_enabled }}"
+
+# Postgres is the default, except if not using internal Postgres server
+matrix_mautrix_gmessages_database_engine: "{{ 'postgres' if devture_postgres_enabled else 'sqlite' }}"
+matrix_mautrix_gmessages_database_hostname: "{{ devture_postgres_connection_hostname if devture_postgres_enabled else '' }}"
+matrix_mautrix_gmessages_database_password: "{{ '%s' | format(matrix_homeserver_generic_secret_key) | password_hash('sha512', 'maugmessages.db', rounds=655555) | to_uuid }}"
+
+######################################################################
+#
+# /matrix-bridge-mautrix-gmessages
+#
+######################################################################
+
 ######################################################################
 #
 # matrix-bridge-mautrix-whatsapp
@@ -1182,10 +1233,10 @@ matrix_mautrix_whatsapp_homeserver_token: "{{ '%s' | format(matrix_homeserver_ge
 matrix_mautrix_whatsapp_login_shared_secret: "{{ matrix_synapse_ext_password_provider_shared_secret_auth_shared_secret if matrix_synapse_ext_password_provider_shared_secret_auth_enabled else '' }}"
 
 # People using an external Prometheus server will need to toggle all of these to be able to consume metrics remotely:
-# - `matrix_mautrix_twitter_metrics_enabled`
+# - `matrix_mautrix_whatsapp_metrics_enabled`
-# - `matrix_mautrix_twitter_proxying_metrics_enabled`
+# - `matrix_mautrix_whatsapp_proxying_metrics_enabled`
 # - `matrix_nginx_proxy_proxy_matrix_metrics_enabled`
-matrix_mautrix_twitter_metrics_enabled: "{{ prometheus_enabled }}"
+matrix_mautrix_whatsapp_metrics_enabled: "{{ prometheus_enabled }}"
 
 # Postgres is the default, except if not using internal Postgres server
 matrix_mautrix_whatsapp_database_engine: "{{ 'postgres' if devture_postgres_enabled else 'sqlite' }}"
@@ -3016,6 +3067,12 @@ devture_postgres_managed_databases_auto: |
       'password': matrix_mautrix_twitter_database_password,
     }] if (matrix_mautrix_twitter_enabled and matrix_mautrix_twitter_database_engine == 'postgres' and matrix_mautrix_twitter_database_hostname == devture_postgres_connection_hostname) else [])
     +
+    ([{
+      'name': matrix_mautrix_gmessages_database_name,
+      'username': matrix_mautrix_gmessages_database_username,
+      'password': matrix_mautrix_gmessages_database_password,
+    }] if (matrix_mautrix_gmessages_enabled and matrix_mautrix_gmessages_database_engine == 'postgres' and matrix_mautrix_gmessages_database_hostname == devture_postgres_connection_hostname) else [])
+    +
     ([{
       'name': matrix_mautrix_whatsapp_database_name,
       'username': matrix_mautrix_whatsapp_database_username,

roles/custom/matrix-bridge-mautrix-gmessages/defaults/main.yml

@@ -0,0 +1,151 @@
+---
+# mautrix-gmessages is a Matrix <-> gmessages bridge
+# Project source code URL: https://github.com/mautrix/gmessages
+
+matrix_mautrix_gmessages_enabled: true
+
+matrix_mautrix_gmessages_container_image_self_build: false
+matrix_mautrix_gmessages_container_image_self_build_repo: "https://github.com/mautrix/gmessages.git"
+matrix_mautrix_gmessages_container_image_self_build_branch: "{{ 'master' if matrix_mautrix_gmessages_version == 'latest' else matrix_mautrix_gmessages_version }}"
+
+matrix_mautrix_gmessages_version: latest
+# See: https://mau.dev/mautrix/gmessages/container_registry
+matrix_mautrix_gmessages_docker_image: "{{ matrix_mautrix_gmessages_docker_image_name_prefix }}mautrix/gmessages:{{ matrix_mautrix_gmessages_version }}"
+matrix_mautrix_gmessages_docker_image_name_prefix: "{{ 'localhost/' if matrix_mautrix_gmessages_container_image_self_build else 'dock.mau.dev/' }}"
+matrix_mautrix_gmessages_docker_image_force_pull: "{{ matrix_mautrix_gmessages_docker_image.endswith(':latest') }}"
+
+matrix_mautrix_gmessages_base_path: "{{ matrix_base_data_path }}/mautrix-gmessages"
+matrix_mautrix_gmessages_config_path: "{{ matrix_mautrix_gmessages_base_path }}/config"
+matrix_mautrix_gmessages_data_path: "{{ matrix_mautrix_gmessages_base_path }}/data"
+matrix_mautrix_gmessages_docker_src_files_path: "{{ matrix_mautrix_gmessages_base_path }}/docker-src"
+
+matrix_mautrix_gmessages_homeserver_address: "{{ matrix_homeserver_container_url }}"
+matrix_mautrix_gmessages_homeserver_domain: "{{ matrix_domain }}"
+matrix_mautrix_gmessages_appservice_address: "http://matrix-mautrix-gmessages:8080"
+
+matrix_mautrix_gmessages_command_prefix: "!gm"
+
+# A list of extra arguments to pass to the container
+matrix_mautrix_gmessages_container_extra_arguments: []
+
+# List of systemd services that matrix-mautrix-gmessages.service depends on.
+matrix_mautrix_gmessages_systemd_required_services_list: ['docker.service']
+
+# List of systemd services that matrix-mautrix-gmessages.service wants
+matrix_mautrix_gmessages_systemd_wanted_services_list: []
+
+matrix_mautrix_gmessages_appservice_token: ''
+matrix_mautrix_gmessages_homeserver_token: ''
+
+matrix_mautrix_gmessages_appservice_bot_username: gmessagesbot
+
+# Minimum severity of journal log messages.
+# Options: debug, info, warn, error, fatal
+matrix_mautrix_gmessages_logging_level: 'warn'
+
+# Whether or not created rooms should have federation enabled.
+# If false, created portal rooms will never be federated.
+matrix_mautrix_gmessages_federate_rooms: true
+
+# Whether or not metrics endpoint should be enabled.
+# Enabling them is usually enough for a local (in-container) Prometheus to consume them.
+# If metrics need to be consumed by another (external) Prometheus server, consider exposing them via `matrix_mautrix_gmessages_metrics_proxying_enabled`.
+matrix_mautrix_gmessages_metrics_enabled: false
+
+# Controls whether metrics should be proxied (exposed) on `matrix.DOMAIN/metrics/mautrix-gmessages`.
+# This will only work take effect if `matrix_nginx_proxy_proxy_matrix_metrics_enabled: true`.
+# See the `matrix-nginx-proxy` role for details about enabling `matrix_nginx_proxy_proxy_matrix_metrics_enabled`.
+matrix_mautrix_gmessages_metrics_proxying_enabled: false
+
+# Database-related configuration fields.
+#
+# To use SQLite, stick to these defaults.
+#
+# To use Postgres:
+# - change the engine (`matrix_mautrix_gmessages_database_engine: 'postgres'`)
+# - adjust your database credentials via the `matrix_mautrix_gmessages_database_*` variables
+matrix_mautrix_gmessages_database_engine: 'sqlite'
+
+matrix_mautrix_gmessages_sqlite_database_path_local: "{{ matrix_mautrix_gmessages_data_path }}/mautrix-gmessages.db"
+matrix_mautrix_gmessages_sqlite_database_path_in_container: "/data/mautrix-gmessages.db"
+
+matrix_mautrix_gmessages_database_username: 'matrix_mautrix_gmessages'
+matrix_mautrix_gmessages_database_password: 'some-password'
+matrix_mautrix_gmessages_database_hostname: ''
+matrix_mautrix_gmessages_database_port: 5432
+matrix_mautrix_gmessages_database_name: 'matrix_mautrix_gmessages'
+
+matrix_mautrix_gmessages_database_connection_string: 'postgresql://{{ matrix_mautrix_gmessages_database_username }}:{{ matrix_mautrix_gmessages_database_password }}@{{ matrix_mautrix_gmessages_database_hostname }}:{{ matrix_mautrix_gmessages_database_port }}/{{ matrix_mautrix_gmessages_database_name }}?sslmode=disable'
+
+matrix_mautrix_gmessages_appservice_database_type: "{{
+	{
+		'sqlite': 'sqlite3',
+		'postgres':'postgres',
+	}[matrix_mautrix_gmessages_database_engine]
+}}"
+
+matrix_mautrix_gmessages_appservice_database_uri: "{{
+	{
+		'sqlite': matrix_mautrix_gmessages_sqlite_database_path_in_container,
+		'postgres': matrix_mautrix_gmessages_database_connection_string,
+	}[matrix_mautrix_gmessages_database_engine]
+}}"
+
+# Can be set to enable automatic double-puppeting via Shared Secret Auth (https://github.com/devture/matrix-synapse-shared-secret-auth).
+matrix_mautrix_gmessages_login_shared_secret: ''
+matrix_mautrix_gmessages_bridge_login_shared_secret_map:
+  "{{ {matrix_mautrix_gmessages_homeserver_domain: matrix_mautrix_gmessages_login_shared_secret} if matrix_mautrix_gmessages_login_shared_secret else {} }}"
+
+# Enable End-to-bridge encryption
+matrix_mautrix_gmessages_bridge_encryption_allow: "{{ matrix_bridges_encryption_enabled }}"
+matrix_mautrix_gmessages_bridge_encryption_default: "{{ matrix_mautrix_gmessages_bridge_encryption_allow }}"
+matrix_mautrix_gmessages_bridge_encryption_key_sharing_allow: "{{ matrix_mautrix_gmessages_bridge_encryption_allow }}"
+
+matrix_mautrix_gmessages_bridge_personal_filtering_spaces: true
+matrix_mautrix_gmessages_bridge_mute_bridging: true
+
+matrix_mautrix_gmessages_bridge_permissions: |
+  {{
+    {matrix_mautrix_gmessages_homeserver_domain: 'user'}
+    | combine({matrix_admin: 'admin'} if matrix_admin else {})
+  }}
+
+# Default mautrix-gmessages configuration template which covers the generic use case.
+# You can customize it by controlling the various variables inside it.
+#
+# For a more advanced customization, you can extend the default (see `matrix_mautrix_gmessages_configuration_extension_yaml`)
+# or completely replace this variable with your own template.
+matrix_mautrix_gmessages_configuration_yaml: "{{ lookup('template', 'templates/config.yaml.j2') }}"
+
+matrix_mautrix_gmessages_configuration_extension_yaml: |
+  # Your custom YAML configuration goes here.
+  # This configuration extends the default starting configuration (`matrix_mautrix_gmessages_configuration_yaml`).
+  #
+  # You can override individual variables from the default configuration, or introduce new ones.
+  #
+  # If you need something more special, you can take full control by
+  # completely redefining `matrix_mautrix_gmessages_configuration_yaml`.
+
+matrix_mautrix_gmessages_configuration_extension: "{{ matrix_mautrix_gmessages_configuration_extension_yaml | from_yaml if matrix_mautrix_gmessages_configuration_extension_yaml | from_yaml is mapping else {} }}"
+
+# Holds the final configuration (a combination of the default and its extension).
+# You most likely don't need to touch this variable. Instead, see `matrix_mautrix_gmessages_configuration_yaml`.
+matrix_mautrix_gmessages_configuration: "{{ matrix_mautrix_gmessages_configuration_yaml | from_yaml | combine(matrix_mautrix_gmessages_configuration_extension, recursive=True) }}"
+
+matrix_mautrix_gmessages_registration_yaml: |
+  id: gmessages
+  url: {{ matrix_mautrix_gmessages_appservice_address }}
+  as_token: "{{ matrix_mautrix_gmessages_appservice_token }}"
+  hs_token: "{{ matrix_mautrix_gmessages_homeserver_token }}"
+  # See https://github.com/mautrix/signal/issues/43
+  sender_localpart: _bot_{{ matrix_mautrix_gmessages_appservice_bot_username }}
+  rate_limited: false
+  namespaces:
+      users:
+      - regex: '^@gmessages_.+:{{ matrix_mautrix_gmessages_homeserver_domain | regex_escape }}$'
+        exclusive: true
+      - exclusive: true
+        regex: '^@{{ matrix_mautrix_gmessages_appservice_bot_username | regex_escape }}:{{ matrix_mautrix_gmessages_homeserver_domain | regex_escape }}$'
+  de.sorunome.msc2409.push_ephemeral: true
+
+matrix_mautrix_gmessages_registration: "{{ matrix_mautrix_gmessages_registration_yaml | from_yaml }}"

roles/custom/matrix-bridge-mautrix-gmessages/tasks/inject_into_nginx_proxy.yml

@@ -0,0 +1,35 @@
+---
+
+- name: Fail if matrix-nginx-proxy role already executed
+  ansible.builtin.fail:
+    msg: >-
+      Trying to append mautrix-gmessages-metrics's reverse-proxying configuration to matrix-nginx-proxy,
+      but it's pointless since the matrix-nginx-proxy role had already executed.
+      To fix this, please change the order of roles in your playbook,
+      so that the matrix-nginx-proxy role would run after the matrix-bridge-mautrix-gmessages role.
+  when: matrix_nginx_proxy_role_executed | default(False) | bool
+
+- when: matrix_mautrix_gmessages_metrics_proxying_enabled | bool
+  block:
+    - name: Generate mautrix-gmessages metrics proxying configuration for matrix-nginx-proxy (matrix.DOMAIN/metrics/mautrix-gmessages)
+      ansible.builtin.set_fact:
+        matrix_mautrix_gmessages_nginx_metrics_configuration_block: |
+          location /metrics/mautrix-gmessages {
+            {% if matrix_nginx_proxy_enabled | default(False) %}
+              {# Use the embedded DNS resolver in Docker containers to discover the service #}
+              resolver 127.0.0.11 valid=5s;
+              set $backend "matrix-mautrix-gmessages:8001";
+              proxy_pass http://$backend/metrics;
+            {% else %}
+              return 404 "matrix-nginx-proxy is disabled and no host port was bound to the container, so metrics are unavailable";
+            {% endif %}
+          }
+
+    - name: Register mautrix-gmessages metrics proxying configuration with matrix-nginx-proxy (matrix.DOMAIN/metrics/mautrix-gmessages)
+      ansible.builtin.set_fact:
+        matrix_nginx_proxy_proxy_matrix_metrics_additional_system_location_configuration_blocks: |
+          {{
+            matrix_nginx_proxy_proxy_matrix_metrics_additional_system_location_configuration_blocks | default([])
+            +
+            [matrix_mautrix_gmessages_nginx_metrics_configuration_block]
+          }}

roles/custom/matrix-bridge-mautrix-gmessages/tasks/main.yml

@@ -0,0 +1,29 @@
+---
+
+- tags:
+    - setup-all
+    - setup-nginx-proxy
+    - install-all
+    - install-nginx-proxy
+  block:
+    - when: matrix_mautrix_gmessages_enabled | bool and matrix_mautrix_gmessages_metrics_enabled | bool
+      ansible.builtin.include_tasks: "{{ role_path }}/tasks/inject_into_nginx_proxy.yml"
+
+- tags:
+    - setup-all
+    - setup-mautrix-gmessages
+    - install-all
+    - install-mautrix-gmessages
+  block:
+    - when: matrix_mautrix_gmessages_enabled | bool
+      ansible.builtin.include_tasks: "{{ role_path }}/tasks/validate_config.yml"
+
+    - when: matrix_mautrix_gmessages_enabled | bool
+      ansible.builtin.include_tasks: "{{ role_path }}/tasks/setup_install.yml"
+
+- tags:
+    - setup-all
+    - setup-mautrix-gmessages
+  block:
+    - when: not matrix_mautrix_gmessages_enabled | bool
+      ansible.builtin.include_tasks: "{{ role_path }}/tasks/setup_uninstall.yml"

roles/custom/matrix-bridge-mautrix-gmessages/tasks/setup_install.yml

@@ -0,0 +1,140 @@
+---
+
+- ansible.builtin.set_fact:
+    matrix_mautrix_gmessages_requires_restart: false
+
+- when: "matrix_mautrix_gmessages_database_engine == 'postgres'"
+  block:
+    - name: Check if an SQLite database already exists
+      ansible.builtin.stat:
+        path: "{{ matrix_mautrix_gmessages_sqlite_database_path_local }}"
+      register: matrix_mautrix_gmessages_sqlite_database_path_local_stat_result
+
+    - when: "matrix_mautrix_gmessages_sqlite_database_path_local_stat_result.stat.exists | bool"
+      block:
+        - ansible.builtin.include_role:
+            name: galaxy/com.devture.ansible.role.postgres
+            tasks_from: migrate_db_to_postgres
+          vars:
+            devture_postgres_db_migration_request:
+              src: "{{ matrix_mautrix_gmessages_sqlite_database_path_local }}"
+              dst: "{{ matrix_mautrix_gmessages_database_connection_string }}"
+              caller: "{{ role_path | basename }}"
+              engine_variable_name: 'matrix_mautrix_gmessages_database_engine'
+              engine_old: 'sqlite'
+              systemd_services_to_stop: ['matrix-mautrix-gmessages.service']
+              pgloader_options: ['--with "quote identifiers"']
+
+        - ansible.builtin.set_fact:
+            matrix_mautrix_gmessages_requires_restart: true
+
+- name: Ensure Mautrix gmessages paths exists
+  ansible.builtin.file:
+    path: "{{ item.path }}"
+    state: directory
+    mode: 0750
+    owner: "{{ matrix_user_username }}"
+    group: "{{ matrix_user_groupname }}"
+  with_items:
+    - {path: "{{ matrix_mautrix_gmessages_base_path }}", when: true}
+    - {path: "{{ matrix_mautrix_gmessages_config_path }}", when: true}
+    - {path: "{{ matrix_mautrix_gmessages_data_path }}", when: true}
+    - {path: "{{ matrix_mautrix_gmessages_docker_src_files_path }}", when: "{{ matrix_mautrix_gmessages_container_image_self_build }}"}
+  when: item.when | bool
+
+- name: Ensure Mautrix gmessages image is pulled
+  community.docker.docker_image:
+    name: "{{ matrix_mautrix_gmessages_docker_image }}"
+    source: "{{ 'pull' if ansible_version.major > 2 or ansible_version.minor > 7 else omit }}"
+    force_source: "{{ matrix_mautrix_gmessages_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_mautrix_gmessages_docker_image_force_pull }}"
+  when: not matrix_mautrix_gmessages_container_image_self_build
+  register: result
+  retries: "{{ devture_playbook_help_container_retries_count }}"
+  delay: "{{ devture_playbook_help_container_retries_delay }}"
+  until: result is not failed
+
+- name: Ensure Mautrix gmessages repository is present on self-build
+  ansible.builtin.git:
+    repo: "{{ matrix_mautrix_gmessages_container_image_self_build_repo }}"
+    dest: "{{ matrix_mautrix_gmessages_docker_src_files_path }}"
+    version: "{{ matrix_mautrix_gmessages_container_image_self_build_branch }}"
+    force: "yes"
+  become: true
+  become_user: "{{ matrix_user_username }}"
+  register: matrix_mautrix_gmessages_git_pull_results
+  when: "matrix_mautrix_gmessages_container_image_self_build | bool"
+
+- name: Ensure Mautrix gmessages Docker image is built
+  community.docker.docker_image:
+    name: "{{ matrix_mautrix_gmessages_docker_image }}"
+    source: build
+    force_source: "{{ matrix_mautrix_gmessages_git_pull_results.changed 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_mautrix_gmessages_git_pull_results.changed }}"
+    build:
+      dockerfile: Dockerfile
+      path: "{{ matrix_mautrix_gmessages_docker_src_files_path }}"
+      pull: true
+  when: "matrix_mautrix_gmessages_container_image_self_build | bool"
+
+- name: Check if an old database file exists
+  ansible.builtin.stat:
+    path: "{{ matrix_mautrix_gmessages_base_path }}/mautrix-gmessages.db"
+  register: matrix_mautrix_gmessages_stat_database
+
+- name: Check if an old matrix state file exists
+  ansible.builtin.stat:
+    path: "{{ matrix_mautrix_gmessages_base_path }}/mx-state.json"
+  register: matrix_mautrix_gmessages_stat_mx_state
+
+- name: (Data relocation) Ensure matrix-mautrix-gmessages.service is stopped
+  ansible.builtin.service:
+    name: matrix-mautrix-gmessages
+    state: stopped
+    enabled: false
+    daemon_reload: true
+  failed_when: false
+  when: "matrix_mautrix_gmessages_stat_database.stat.exists"
+
+- name: (Data relocation) Move mautrix-gmessages database file to ./data directory
+  ansible.builtin.command:
+    cmd: "mv {{ matrix_mautrix_gmessages_base_path }}/mautrix-gmessages.db {{ matrix_mautrix_gmessages_data_path }}/mautrix-gmessages.db"
+    creates: "{{ matrix_mautrix_gmessages_data_path }}/mautrix-gmessages.db"
+    removes: "{{ matrix_mautrix_gmessages_base_path }}/mautrix-gmessages.db"
+  when: "matrix_mautrix_gmessages_stat_database.stat.exists"
+
+- name: (Data relocation) Move mautrix-gmessages mx-state file to ./data directory
+  ansible.builtin.command:
+    cmd: "mv {{ matrix_mautrix_gmessages_base_path }}/mx-state.json {{ matrix_mautrix_gmessages_data_path }}/mx-state.json"
+    creates: "{{ matrix_mautrix_gmessages_data_path }}/mx-state.json"
+    removes: "{{ matrix_mautrix_gmessages_base_path }}/mx-state.json"
+  when: "matrix_mautrix_gmessages_stat_mx_state.stat.exists"
+
+- name: Ensure mautrix-gmessages config.yaml installed
+  ansible.builtin.copy:
+    content: "{{ matrix_mautrix_gmessages_configuration | to_nice_yaml(indent=2, width=999999) }}"
+    dest: "{{ matrix_mautrix_gmessages_config_path }}/config.yaml"
+    mode: 0644
+    owner: "{{ matrix_user_username }}"
+    group: "{{ matrix_user_groupname }}"
+
+- name: Ensure mautrix-gmessages registration.yaml installed
+  ansible.builtin.copy:
+    content: "{{ matrix_mautrix_gmessages_registration | to_nice_yaml(indent=2, width=999999) }}"
+    dest: "{{ matrix_mautrix_gmessages_config_path }}/registration.yaml"
+    mode: 0644
+    owner: "{{ matrix_user_username }}"
+    group: "{{ matrix_user_groupname }}"
+
+- name: Ensure matrix-mautrix-gmessages.service installed
+  ansible.builtin.template:
+    src: "{{ role_path }}/templates/systemd/matrix-mautrix-gmessages.service.j2"
+    dest: "{{ devture_systemd_docker_base_systemd_path }}/matrix-mautrix-gmessages.service"
+    mode: 0644
+
+- name: Ensure matrix-mautrix-gmessages.service restarted, if necessary
+  ansible.builtin.service:
+    name: "matrix-mautrix-gmessages.service"
+    state: restarted
+    daemon_reload: true
+  when: "matrix_mautrix_gmessages_requires_restart | bool"

roles/custom/matrix-bridge-mautrix-gmessages/tasks/setup_uninstall.yml

@@ -0,0 +1,20 @@
+---
+
+- name: Check existence of matrix-mautrix-gmessages service
+  ansible.builtin.stat:
+    path: "{{ devture_systemd_docker_base_systemd_path }}/matrix-mautrix-gmessages.service"
+  register: matrix_mautrix_gmessages_service_stat
+
+- when: matrix_mautrix_gmessages_service_stat.stat.exists | bool
+  block:
+    - name: Ensure matrix-mautrix-gmessages is stopped
+      ansible.builtin.service:
+        name: matrix-mautrix-gmessages
+        state: stopped
+        enabled: false
+        daemon_reload: true
+
+    - name: Ensure matrix-mautrix-gmessages.service doesn't exist
+      ansible.builtin.file:
+        path: "{{ devture_systemd_docker_base_systemd_path }}/matrix-mautrix-gmessages.service"
+        state: absent

roles/custom/matrix-bridge-mautrix-gmessages/tasks/validate_config.yml

@@ -0,0 +1,20 @@
+---
+
+- name: Fail if required mautrix-gmessages settings not defined
+  ansible.builtin.fail:
+    msg: >-
+      You need to define a required configuration setting (`{{ item.name }}`).
+  when: "item.when | bool and vars[item.name] == ''"
+  with_items:
+    - {'name': 'matrix_mautrix_gmessages_appservice_token', when: true}
+    - {'name': 'matrix_mautrix_gmessages_homeserver_token', when: true}
+    - {'name': 'matrix_mautrix_gmessages_database_hostname', when: "{{ matrix_mautrix_gmessages_database_engine == 'postgres' }}"}
+
+- name: (Deprecation) Catch and report renamed settings
+  ansible.builtin.fail:
+    msg: >-
+      Your configuration contains a variable, which now has a different name.
+      Please change your configuration to rename the variable (`{{ item.old }}` -> `{{ item.new }}`).
+  when: "item.old in vars"
+  with_items:
+    - {'old': 'matrix_mautrix_gmessages_log_level', 'new': 'matrix_mautrix_gmessages_logging_level'}

roles/custom/matrix-bridge-mautrix-gmessages/templates/config.yaml.j2

@@ -0,0 +1,298 @@
+#jinja2: lstrip_blocks: "True"
+# Homeserver details.
+homeserver:
+    # The address that this appservice can use to connect to the homeserver.
+    address: {{ matrix_mautrix_gmessages_homeserver_address }}
+    # The domain of the homeserver (also known as server_name, used for MXIDs, etc).
+    domain: {{ matrix_mautrix_gmessages_homeserver_domain }}
+
+    # What software is the homeserver running?
+    # Standard Matrix homeservers like Synapse, Dendrite and Conduit should just use "standard" here.
+    software: standard
+    # The URL to push real-time bridge status to.
+    # If set, the bridge will make POST requests to this URL whenever a user's google messages connection state changes.
+    # The bridge will use the appservice as_token to authorize requests.
+    status_endpoint: null
+    # Endpoint for reporting per-message status.
+    message_send_checkpoint_endpoint: null
+    # Does the homeserver support https://github.com/matrix-org/matrix-spec-proposals/pull/2246?
+    async_media: false
+
+    # Should the bridge use a websocket for connecting to the homeserver?
+    # The server side is currently not documented anywhere and is only implemented by mautrix-wsproxy,
+    # mautrix-asmux (deprecated), and hungryserv (proprietary).
+    websocket: false
+    # How often should the websocket be pinged? Pinging will be disabled if this is zero.
+    ping_interval_seconds: 0
+
+# Application service host/registration related details.
+# Changing these values requires regeneration of the registration.
+appservice:
+    # The address that the homeserver can use to connect to this appservice.
+    address: {{ matrix_mautrix_gmessages_appservice_address }}
+
+    # The hostname and port where this appservice should listen.
+    hostname: 0.0.0.0
+    port: 8080
+
+    # Database config.
+    database:
+        # The database type. "sqlite3-fk-wal" and "postgres" are supported.
+        type: postgres
+        # The database URI.
+        #   SQLite: A raw file path is supported, but `file:<path>?_txlock=immediate` is recommended.
+        #           https://github.com/mattn/go-sqlite3#connection-string
+        #   Postgres: Connection string. For example, postgres://user:password@host/database?sslmode=disable
+        #             To connect via Unix socket, use something like postgres:///dbname?host=/var/run/postgresql
+        uri: {{ matrix_mautrix_gmessages_appservice_database_uri|to_json }}
+        # Maximum number of connections. Mostly relevant for Postgres.
+        max_open_conns: 20
+        max_idle_conns: 2
+        # Maximum connection idle time and lifetime before they're closed. Disabled if null.
+        # Parsed with https://pkg.go.dev/time#ParseDuration
+        max_conn_idle_time: null
+        max_conn_lifetime: null
+
+    # The unique ID of this appservice.
+    id: gmessages
+    # Appservice bot details.
+    bot:
+        # Username of the appservice bot.
+        username: {{ matrix_mautrix_gmessages_appservice_bot_username|to_json }}
+        # Display name and avatar for bot. Set to "remove" to remove display name/avatar, leave empty
+        # to leave display name/avatar as-is.
+        displayname: Google Messages bridge bot
+        avatar: mxc://maunium.net/yGOdcrJcwqARZqdzbfuxfhzb
+
+    # Whether or not to receive ephemeral events via appservice transactions.
+    # Requires MSC2409 support (i.e. Synapse 1.22+).
+    ephemeral_events: true
+
+    # Should incoming events be handled asynchronously?
+    # This may be necessary for large public instances with lots of messages going through.
+    # However, messages will not be guaranteed to be bridged in the same order they were sent in.
+    async_transactions: false
+
+    # Authentication tokens for AS <-> HS communication. Autogenerated; do not modify.
+    as_token: "{{ matrix_mautrix_gmessages_appservice_token }}"
+    hs_token: "{{ matrix_mautrix_gmessages_homeserver_token }}"
+
+# Segment API key to track some events, like provisioning API login and encryption errors.
+segment_key: null
+# Optional user_id to use when sending Segment events. If null, defaults to using mxID.
+segment_user_id: null
+
+# Prometheus config.
+metrics:
+    # Enable prometheus metrics?
+    enabled: {{ matrix_mautrix_gmessages_metrics_enabled | to_json }}
+    # IP and port where the metrics listener should be. The path is always /metrics
+    listen: 127.0.0.1:8001
+
+google_messages:
+    # OS name to tell the phone. This is the name that shows up in the paired devices list.
+    os: mautrix-gmessages
+    # Browser type to tell the phone. This decides which icon is shown.
+    # Valid types: OTHER, CHROME, FIREFOX, SAFARI, OPERA, IE, EDGE
+    browser: OTHER
+
+    # Should the bridge aggressively set itself as the active device if the user opens Google Messages in a browser?
+    # If this is disabled, the user must manually use the `reconnect` command to reactivate the bridge.
+    aggressive_reconnect: false
+
+# Bridge config
+bridge:
+    # Localpart template of MXIDs for SMS users.
+    # {{ '{{.}}' }} is replaced with an identifier of the recipient.
+    username_template: "{{ 'gmessages_{{.}}' }}"
+    # Displayname template for SMS users.
+    # {{ '{{.FullName}}' }} - Full name provided by the phone
+    # {{ '{{.FirstName}}' }} - First name provided by the phone
+    # {{ '{{.PhoneNumber}}' }} - Formatted phone number provided by the phone
+    displayname_template: "{{ '{{or .FullName .PhoneNumber}}' }}"
+    # Should the bridge create a space for each logged-in user and add bridged rooms to it?
+    personal_filtering_spaces: {{ matrix_mautrix_gmessages_bridge_personal_filtering_spaces | to_json }}
+    # Should the bridge send a read receipt from the bridge bot when a message has been sent to the phone?
+    delivery_receipts: false
+    # Whether the bridge should send the message status as a custom com.beeper.message_send_status event.
+    message_status_events: false
+    # Whether the bridge should send error notices via m.notice events when a message fails to bridge.
+    message_error_notices: true
+
+    portal_message_buffer: 128
+
+    # Should the bridge update the m.direct account data event when double puppeting is enabled.
+    # Note that updating the m.direct event is not atomic (except with mautrix-asmux)
+    # and is therefore prone to race conditions.
+    sync_direct_chat_list: false
+    # Number of chats to sync when connecting to Google Messages.
+    initial_chat_sync_count: 25
+    # Backfill settings
+    backfill:
+        # Number of messages to backfill in new chats.
+        initial_limit: 50
+        # Number of messages to backfill on startup if the last message ID in the chat sync doesn't match the last bridged message.
+        missed_limit: 100
+
+    # Servers to always allow double puppeting from
+    double_puppet_server_map:
+        "{{ matrix_mautrix_gmessages_homeserver_domain }}": {{ matrix_mautrix_gmessages_homeserver_address }}
+    # Allow using double puppeting from any server with a valid client .well-known file.
+    double_puppet_allow_discovery: false
+    # Shared secrets for https://github.com/devture/matrix-synapse-shared-secret-auth
+    #
+    # If set, double puppeting will be enabled automatically for local users
+    # instead of users having to find an access token and run `login-matrix`
+    # manually.
+    login_shared_secret_map: {{ matrix_mautrix_gmessages_bridge_login_shared_secret_map|to_json }}
+
+    # Whether to explicitly set the avatar and room name for private chat portal rooms.
+    # If set to `default`, this will be enabled in encrypted rooms and disabled in unencrypted rooms.
+    # If set to `always`, all DM rooms will have explicit names and avatars set.
+    # If set to `never`, DM rooms will never have names and avatars set.
+    private_chat_portal_meta: default
+    # Should Matrix m.notice-type messages be bridged?
+    bridge_notices: true
+    # Set this to true to tell the bridge to re-send m.bridge events to all rooms on the next run.
+    # This field will automatically be changed back to false after it, except if the config file is not writable.
+    resend_bridge_info: false
+    # When using double puppeting, should muted chats be muted in Matrix?
+    mute_bridging: {{ matrix_mautrix_gmessages_bridge_mute_bridging | to_json }}
+    # When using double puppeting, should archived chats be moved to a specific tag in Matrix?
+    # This can be set to a tag (e.g. m.lowpriority), or null to disable.
+    archive_tag: null
+    # Same as above, but for pinned chats. The favorite tag is called m.favourite
+    pinned_tag: null
+    # Should mute status and tags only be bridged when the portal room is created?
+    tag_only_on_create: true
+    # Whether or not created rooms should have federation enabled.
+    # If false, created portal rooms will never be federated.
+    federate_rooms: {{ matrix_mautrix_gmessages_federate_rooms|to_json }}
+    # Should the bridge never send alerts to the bridge management room?
+    # These are mostly things like the user being logged out.
+    disable_bridge_alerts: false
+    # Send captions in the same message as images. This will send data compatible with both MSC2530 and MSC3552.
+    # This is currently not supported in most clients.
+    caption_in_message: false
+
+    # The prefix for commands. Only required in non-management rooms.
+    command_prefix: "!gm"
+
+    # Messages sent upon joining a management room.
+    # Markdown is supported. The defaults are listed below.
+    management_room_text:
+        # Sent when joining a room.
+        welcome: "Hello, I'm a Google Messages bridge bot."
+        # Sent when joining a management room and the user is already logged in.
+        welcome_connected: "Use `help` for help."
+        # Sent when joining a management room and the user is not logged in.
+        welcome_unconnected: "Use `help` for help or `login` to log in."
+        # Optional extra text sent when joining a management room.
+        additional_help: ""
+
+    # End-to-bridge encryption support options.
+    #
+    # See https://docs.mau.fi/bridges/general/end-to-bridge-encryption.html for more info.
+    encryption:
+        # Allow encryption, work in group chat rooms with e2ee enabled
+        allow: {{ matrix_mautrix_gmessages_bridge_encryption_allow|to_json }}
+        # Default to encryption, force-enable encryption in all portals the bridge creates
+        # This will cause the bridge bot to be in private chats for the encryption to work properly.
+        default: {{ matrix_mautrix_gmessages_bridge_encryption_default|to_json }}
+        # Whether to use MSC2409/MSC3202 instead of /sync long polling for receiving encryption-related data.
+        appservice: false
+        # Require encryption, drop any unencrypted messages.
+        require: false
+        # Enable key sharing? If enabled, key requests for rooms where users are in will be fulfilled.
+        # You must use a client that supports requesting keys from other users to use this feature.
+        allow_key_sharing: {{ matrix_mautrix_gmessages_bridge_encryption_key_sharing_allow|to_json }}
+        # Options for deleting megolm sessions from the bridge.
+        delete_keys:
+            # Beeper-specific: delete outbound sessions when hungryserv confirms
+            # that the user has uploaded the key to key backup.
+            delete_outbound_on_ack: false
+            # Don't store outbound sessions in the inbound table.
+            dont_store_outbound: false
+            # Ratchet megolm sessions forward after decrypting messages.
+            ratchet_on_decrypt: false
+            # Delete fully used keys (index >= max_messages) after decrypting messages.
+            delete_fully_used_on_decrypt: false
+            # Delete previous megolm sessions from same device when receiving a new one.
+            delete_prev_on_new_session: false
+            # Delete megolm sessions received from a device when the device is deleted.
+            delete_on_device_delete: false
+            # Periodically delete megolm sessions when 2x max_age has passed since receiving the session.
+            periodically_delete_expired: false
+            # Delete inbound megolm sessions that don't have the received_at field used for
+            # automatic ratcheting and expired session deletion. This is meant as a migration
+            # to delete old keys prior to the bridge update.
+            delete_outdated_inbound: false
+        # What level of device verification should be required from users?
+        #
+        # Valid levels:
+        #   unverified - Send keys to all device in the room.
+        #   cross-signed-untrusted - Require valid cross-signing, but trust all cross-signing keys.
+        #   cross-signed-tofu - Require valid cross-signing, trust cross-signing keys on first use (and reject changes).
+        #   cross-signed-verified - Require valid cross-signing, plus a valid user signature from the bridge bot.
+        #                           Note that creating user signatures from the bridge bot is not currently possible.
+        #   verified - Require manual per-device verification
+        #              (currently only possible by modifying the `trust` column in the `crypto_device` database table).
+        verification_levels:
+            # Minimum level for which the bridge should send keys to when bridging messages from SMS to Matrix.
+            receive: unverified
+            # Minimum level that the bridge should accept for incoming Matrix messages.
+            send: unverified
+            # Minimum level that the bridge should require for accepting key requests.
+            share: cross-signed-tofu
+        # Options for Megolm room key rotation. These options allow you to
+        # configure the m.room.encryption event content. See:
+        # https://spec.matrix.org/v1.3/client-server-api/#mroomencryption for
+        # more information about that event.
+        rotation:
+            # Enable custom Megolm room key rotation settings. Note that these
+            # settings will only apply to rooms created after this option is
+            # set.
+            enable_custom: false
+            # The maximum number of milliseconds a session should be used
+            # before changing it. The Matrix spec recommends 604800000 (a week)
+            # as the default.
+            milliseconds: 604800000
+            # The maximum number of messages that should be sent with a given a
+            # session before changing it. The Matrix spec recommends 100 as the
+            # default.
+            messages: 100
+
+            # Disable rotating keys when a user's devices change?
+            # You should not enable this option unless you understand all the implications.
+            disable_device_change_key_rotation: false
+
+    # Settings for provisioning API
+    provisioning:
+        # Prefix for the provisioning API paths.
+        prefix: /_matrix/provision
+        # Shared secret for authentication. If set to "generate", a random secret will be generated,
+        # or if set to "disable", the provisioning API will be disabled.
+        shared_secret: generate
+
+    # Permissions for using the bridge.
+    # Permitted values:
+    #     user - Access to use the bridge to link their own Google Messages on android.
+    #    admin - User level and some additional administration tools
+    # Permitted keys:
+    #        * - All Matrix users
+    #   domain - All users on that homeserver
+    #     mxid - Specific user
+    permissions: {{ matrix_mautrix_gmessages_bridge_permissions|to_json }}
+
+# Logging config. See https://github.com/tulir/zeroconfig for details.
+logging:
+    min_level: debug
+    writers:
+    - type: stdout
+      format: pretty-colored
+    - type: file
+      format: json
+      filename: ./logs/mautrix-gmessages.log
+      max_size: 100
+      max_backups: 10
+      compress: true

roles/custom/matrix-bridge-mautrix-gmessages/templates/systemd/matrix-mautrix-gmessages.service.j2

@@ -0,0 +1,43 @@
+#jinja2: lstrip_blocks: "True"
+[Unit]
+Description=Matrix Mautrix gmessages bridge
+{% for service in matrix_mautrix_gmessages_systemd_required_services_list %}
+Requires={{ service }}
+After={{ service }}
+{% endfor %}
+{% for service in matrix_mautrix_gmessages_systemd_wanted_services_list %}
+Wants={{ service }}
+{% endfor %}
+DefaultDependencies=no
+
+[Service]
+Type=simple
+Environment="HOME={{ devture_systemd_docker_base_systemd_unit_home_path }}"
+ExecStartPre=-{{ devture_systemd_docker_base_host_command_sh }} -c '{{ devture_systemd_docker_base_host_command_docker }} kill matrix-mautrix-gmessages 2>/dev/null || true'
+ExecStartPre=-{{ devture_systemd_docker_base_host_command_sh }} -c '{{ devture_systemd_docker_base_host_command_docker }} rm matrix-mautrix-gmessages 2>/dev/null || true'
+
+# Intentional delay, so that the homeserver (we likely depend on) can manage to start.
+ExecStartPre={{ matrix_host_command_sleep }} 5
+
+ExecStart={{ devture_systemd_docker_base_host_command_docker }} run --rm --name matrix-mautrix-gmessages \
+			--log-driver=none \
+			--user={{ matrix_user_uid }}:{{ matrix_user_gid }} \
+			--cap-drop=ALL \
+			--network={{ matrix_docker_network }} \
+			-v {{ matrix_mautrix_gmessages_config_path }}:/config:z \
+			-v {{ matrix_mautrix_gmessages_data_path }}:/data:z \
+			--workdir=/data \
+			{% for arg in matrix_mautrix_gmessages_container_extra_arguments %}
+			{{ arg }} \
+			{% endfor %}
+			{{ matrix_mautrix_gmessages_docker_image }} \
+			/usr/bin/mautrix-gmessages -c /config/config.yaml -r /config/registration.yaml
+
+ExecStop=-{{ devture_systemd_docker_base_host_command_sh }} -c '{{ devture_systemd_docker_base_host_command_docker }} kill matrix-mautrix-gmessages 2>/dev/null || true'
+ExecStop=-{{ devture_systemd_docker_base_host_command_sh }} -c '{{ devture_systemd_docker_base_host_command_docker }} rm matrix-mautrix-gmessages 2>/dev/null || true'
+Restart=always
+RestartSec=30
+SyslogIdentifier=matrix-mautrix-gmessages
+
+[Install]
+WantedBy=multi-user.target

setup.yml

@@ -59,6 +59,7 @@
     - custom/matrix-bridge-mautrix-instagram
     - custom/matrix-bridge-mautrix-signal
     - custom/matrix-bridge-mautrix-telegram
+    - custom/matrix-bridge-mautrix-gmessages
     - custom/matrix-bridge-mautrix-whatsapp
     - custom/matrix-bridge-mautrix-discord
     - custom/matrix-bridge-mautrix-slack