Merge pull request #2227 from xangelix/add-matrix-mautrix-slack-role

Add matrix-bridge-mautrix-slack role

README.md

@@ -89,7 +89,8 @@ Bridges can be used to connect your matrix installation with third-party communi
 
 | Name | Default? | Description | Documentation |
 | ---- | -------- | ----------- | ------------- |
-[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-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-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) |

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

@@ -0,0 +1,77 @@
+# Setting up Mautrix Slack (optional)
+
+**Note**: bridging to [Slack](https://slack.com/) can also happen via the [mx-puppet-slack](configuring-playbook-bridge-mx-puppet-slack.md) and [matrix-appservice-slack](configuring-playbook-bridge-appservice-slack.md) bridges supported by the playbook.
+- For using as a Bot we recommend the [Appservice Slack](configuring-playbook-bridge-appservice-slack.md), because it supports plumbing.
+- For personal use with a slack account we recommend the `mautrix-slack` bridge (the one being discussed here), because it is the most fully-featured and stable of the 3 Slack bridges supported by the playbook.
+
+The playbook can install and configure [mautrix-slack](https://github.com/mautrix/slack) for you.
+
+See the project's [documentation](https://docs.mau.fi/bridges/go/slack/index.html) to learn what it does and why it might be useful to you.
+
+Note that as of Oct 2022, support for multiple Matrix users using the bot is incomplete. Different users do not yet share the bridged channels. Everyone gets their own copy.
+
+See the [features and roadmap](https://github.com/mautrix/slack/blob/main/ROADMAP.md) for more information.
+
+
+## Prerequisites
+
+For using this bridge, you would need to authenticate by **providing your username and password** (legacy) or by using a **token login**. See more information in the [docs](https://docs.mau.fi/bridges/go/slack/authentication.html).
+
+Note that neither of these methods are officially supported by Slack. [matrix-appservice-slack](configuring-playbook-bridge-appservice-slack.md) uses a Slack bot account which is the only officially supported method for bridging a Slack channel.
+
+
+## Installing
+
+To enable the bridge, add this to your `vars.yml` file:
+
+```yaml
+matrix_mautrix_slack_enabled: true
+```
+
+You may optionally wish to add some [Additional configuration](#additional-configuration), or to [prepare for double-puppeting](#set-up-double-puppeting) before the initial installation.
+
+After adjusting your `vars.yml` file, re-run the playbook and restart all services: `ansible-playbook -i inventory/hosts setup.yml --tags=setup-all,start`
+
+To make use of the bridge, see [Usage](#usage) below.
+
+
+### Additional configuration
+
+There are some additional options you may wish to configure with the bridge.
+
+Take a look at:
+
+- `roles/custom/matrix-bridge-mautrix-slack/defaults/main.yml` for some variables that you can customize via your `vars.yml` file
+- `roles/custom/matrix-bridge-mautrix-slack/templates/config.yaml.j2` for the bridge's default configuration. You can override settings (even those that don't have dedicated playbook variables) using the `matrix_mautrix_slack_configuration_extension_yaml` variable
+
+
+### 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-Slack` device some time in the future, as that would break the Double Puppeting feature
+
+
+## Usage
+
+1. Start a chat with `@slackbot:YOUR_DOMAIN` (where `YOUR_DOMAIN` is your base domain, not the `matrix.` domain).
+2. If you would like to login to Slack using a token, send the `login-token` command, otherwise, send the `login-password` command. Read [here](https://docs.mau.fi/bridges/go/slack/authentication.html) on how to retrieve your token and cookie token.
+3. The bot should respond with "Successfully logged into <email> for team <workspace>"
+4. Now that you're logged in, you can send a `help` command to the bot again, to see additional commands you have access to.
+5. Slack channels should automatically begin bridging if you authenticated using a token. Otherwise, you must wait to receive a message in the channel if you used password authentication.

group_vars/matrix_servers

@@ -53,6 +53,8 @@ matrix_homeserver_container_extra_arguments_auto: |
     +
     (['--mount type=bind,src=' + matrix_mautrix_discord_config_path + '/registration.yaml,dst=/matrix-mautrix-discord-registration.yaml,ro'] if matrix_mautrix_discord_enabled else [])
     +
+    (['--mount type=bind,src=' + matrix_mautrix_slack_config_path + '/registration.yaml,dst=/matrix-mautrix-slack-registration.yaml,ro'] if matrix_mautrix_slack_enabled else [])
+    +
     (['--mount type=bind,src=' + matrix_mautrix_facebook_config_path + '/registration.yaml,dst=/matrix-mautrix-facebook-registration.yaml,ro'] if matrix_mautrix_facebook_enabled else [])
     +
     (['--mount type=bind,src=' + matrix_mautrix_googlechat_config_path + '/registration.yaml,dst=/matrix-mautrix-googlechat-registration.yaml,ro'] if matrix_mautrix_googlechat_enabled else [])
@@ -108,6 +110,8 @@ matrix_homeserver_app_service_config_files_auto: |
     +
     (['/matrix-mautrix-discord-registration.yaml'] if matrix_mautrix_discord_enabled else [])
     +
+    (['/matrix-mautrix-slack-registration.yaml'] if matrix_mautrix_slack_enabled else [])
+    +
     (['/matrix-mautrix-facebook-registration.yaml'] if matrix_mautrix_facebook_enabled else [])
     +
     (['/matrix-mautrix-googlechat-registration.yaml'] if matrix_mautrix_googlechat_enabled else [])
@@ -211,6 +215,8 @@ devture_systemd_service_manager_services_list_auto: |
     +
     ([{'name': 'matrix-mautrix-discord.service', 'priority': 2000, 'groups': ['matrix', 'bridges', 'mautrix-discord']}] if matrix_mautrix_discord_enabled else [])
     +
+    ([{'name': 'matrix-mautrix-slack.service', 'priority': 2000, 'groups': ['matrix', 'bridges', 'mautrix-slack']}] if matrix_mautrix_slack_enabled else [])
+    +
     ([{'name': 'matrix-mautrix-facebook.service', 'priority': 2000, 'groups': ['matrix', 'bridges', 'mautrix-facebook']}] if matrix_mautrix_facebook_enabled else [])
     +
     ([{'name': 'matrix-mautrix-googlechat.service', 'priority': 2000, 'groups': ['matrix', 'bridges', 'mautrix-googlechat']}] if matrix_mautrix_googlechat_enabled else [])
@@ -727,6 +733,46 @@ matrix_mautrix_discord_database_password: "{{ '%s' | format(matrix_homeserver_ge
 ######################################################################
 
 
+######################################################################
+#
+# matrix-bridge-mautrix-slack
+#
+######################################################################
+
+# We don't enable bridges by default.
+matrix_mautrix_slack_enabled: false
+
+matrix_mautrix_slack_container_image_self_build: "{{ matrix_architecture not in ['arm64', 'amd64'] }}"
+
+matrix_mautrix_slack_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_slack_appservice_token: "{{ '%s' | format(matrix_homeserver_generic_secret_key) | password_hash('sha512', 'mauslack.as.tok', rounds=655555) | to_uuid }}"
+
+matrix_mautrix_slack_homeserver_token: "{{ '%s' | format(matrix_homeserver_generic_secret_key) | password_hash('sha512', 'mauslack.hs.tok', rounds=655555) | to_uuid }}"
+
+matrix_mautrix_slack_login_shared_secret: "{{ matrix_synapse_ext_password_provider_shared_secret_auth_shared_secret if matrix_synapse_ext_password_provider_shared_secret_auth_enabled else '' }}"
+
+# Postgres is the default, except if not using internal Postgres server
+matrix_mautrix_slack_database_engine: "{{ 'postgres' if devture_postgres_enabled else 'sqlite' }}"
+matrix_mautrix_slack_database_hostname: "{{ devture_postgres_connection_hostname if devture_postgres_enabled else '' }}"
+matrix_mautrix_slack_database_password: "{{ '%s' | format(matrix_homeserver_generic_secret_key) | password_hash('sha512', 'mauslack.db', rounds=655555) | to_uuid }}"
+
+######################################################################
+#
+# /matrix-bridge-mautrix-slack
+#
+######################################################################
+
+
 ######################################################################
 #
 # matrix-bridge-mautrix-facebook
@@ -2464,6 +2510,12 @@ devture_postgres_managed_databases_auto: |
       'password': matrix_mautrix_discord_database_password,
     }] if (matrix_mautrix_discord_enabled and matrix_mautrix_discord_database_engine == 'postgres' and matrix_mautrix_discord_database_hostname == devture_postgres_connection_hostname) else [])
     +
+    ([{
+      'name': matrix_mautrix_slack_database_name,
+      'username': matrix_mautrix_slack_database_username,
+      'password': matrix_mautrix_slack_database_password,
+    }] if (matrix_mautrix_slack_enabled and matrix_mautrix_slack_database_engine == 'postgres' and matrix_mautrix_slack_database_hostname == devture_postgres_connection_hostname) else [])
+    +
     ([{
       'name': matrix_mx_puppet_slack_database_name,
       'username': matrix_mx_puppet_slack_database_username,

playbooks/matrix.yml

@@ -61,6 +61,7 @@
     - custom/matrix-bridge-mautrix-telegram
     - custom/matrix-bridge-mautrix-whatsapp
     - custom/matrix-bridge-mautrix-discord
+    - custom/matrix-bridge-mautrix-slack
     - custom/matrix-bridge-mx-puppet-discord
     - custom/matrix-bridge-mx-puppet-groupme
     - custom/matrix-bridge-mx-puppet-steam

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

@@ -0,0 +1,138 @@
+---
+# mautrix-slack is a Matrix <-> Slack bridge
+# Project source code URL: https://github.com/mautrix/slack
+
+matrix_mautrix_slack_enabled: true
+
+matrix_mautrix_slack_container_image_self_build: false
+matrix_mautrix_slack_container_image_self_build_repo: "https://mau.dev/mautrix/slack.git"
+matrix_mautrix_slack_container_image_self_build_branch: "{{ 'main' if matrix_mautrix_slack_version == 'latest' else matrix_mautrix_slack_version }}"
+
+matrix_mautrix_slack_version: latest
+# See: https://mau.dev/mautrix/slack/container_registry
+matrix_mautrix_slack_docker_image: "{{ matrix_mautrix_slack_docker_image_name_prefix }}mautrix/slack:{{ matrix_mautrix_slack_version }}"
+matrix_mautrix_slack_docker_image_name_prefix: "{{ 'localhost/' if matrix_mautrix_slack_container_image_self_build else 'dock.mau.dev/' }}"
+matrix_mautrix_slack_docker_image_force_pull: "{{ matrix_mautrix_slack_docker_image.endswith(':latest') }}"
+
+matrix_mautrix_slack_base_path: "{{ matrix_base_data_path }}/mautrix-slack"
+matrix_mautrix_slack_config_path: "{{ matrix_mautrix_slack_base_path }}/config"
+matrix_mautrix_slack_data_path: "{{ matrix_mautrix_slack_base_path }}/data"
+matrix_mautrix_slack_docker_src_files_path: "{{ matrix_mautrix_slack_base_path }}/docker-src"
+
+matrix_mautrix_slack_homeserver_address: "{{ matrix_homeserver_container_url }}"
+matrix_mautrix_slack_homeserver_domain: "{{ matrix_domain }}"
+matrix_mautrix_slack_appservice_address: "http://matrix-mautrix-slack:8080"
+
+matrix_mautrix_slack_command_prefix: "!slack"
+
+matrix_mautrix_slack_bridge_permissions: |
+  {{
+    {matrix_mautrix_slack_homeserver_domain: 'user'}
+    | combine({matrix_admin: 'admin'} if matrix_admin else {})
+  }}
+
+# A list of extra arguments to pass to the container
+matrix_mautrix_slack_container_extra_arguments: []
+
+# List of systemd services that matrix-mautrix-slack.service depends on.
+matrix_mautrix_slack_systemd_required_services_list: ['docker.service']
+
+# List of systemd services that matrix-mautrix-slack.service wants
+matrix_mautrix_slack_systemd_wanted_services_list: []
+
+matrix_mautrix_slack_appservice_token: ''
+matrix_mautrix_slack_homeserver_token: ''
+
+matrix_mautrix_slack_appservice_bot_username: slackbot
+
+# Minimum severity of journal log messages.
+# Options: debug, info, warn, error, fatal
+matrix_mautrix_slack_logging_level: 'warn'
+
+# Database-related configuration fields.
+#
+# To use SQLite, stick to these defaults.
+#
+# To use Postgres:
+# - change the engine (`matrix_mautrix_slack_database_engine: 'postgres'`)
+# - adjust your database credentials via the `matrix_mautrix_slack_database_*` variables
+matrix_mautrix_slack_database_engine: 'sqlite'
+
+matrix_mautrix_slack_sqlite_database_path_local: "{{ matrix_mautrix_slack_data_path }}/mautrix-slack.db"
+matrix_mautrix_slack_sqlite_database_path_in_container: "/data/mautrix-slack.db"
+
+matrix_mautrix_slack_database_username: 'matrix_mautrix_slack'
+matrix_mautrix_slack_database_password: 'some-password'
+matrix_mautrix_slack_database_hostname: ''
+matrix_mautrix_slack_database_port: 5432
+matrix_mautrix_slack_database_name: 'matrix_mautrix_slack'
+
+matrix_mautrix_slack_database_connection_string: 'postgresql://{{ matrix_mautrix_slack_database_username }}:{{ matrix_mautrix_slack_database_password }}@{{ matrix_mautrix_slack_database_hostname }}:{{ matrix_mautrix_slack_database_port }}/{{ matrix_mautrix_slack_database_name }}?sslmode=disable'
+
+matrix_mautrix_slack_appservice_database_type: "{{
+	{
+		'sqlite': 'sqlite3',
+		'postgres':'postgres',
+	}[matrix_mautrix_slack_database_engine]
+}}"
+
+matrix_mautrix_slack_appservice_database_uri: "{{
+	{
+		'sqlite': matrix_mautrix_slack_sqlite_database_path_in_container,
+		'postgres': matrix_mautrix_slack_database_connection_string,
+	}[matrix_mautrix_slack_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_slack_login_shared_secret: ''
+matrix_mautrix_slack_bridge_login_shared_secret_map:
+  "{{ {matrix_mautrix_slack_homeserver_domain: matrix_mautrix_slack_login_shared_secret} if matrix_mautrix_slack_login_shared_secret else {} }}"
+
+# Servers to always allow double puppeting from
+matrix_mautrix_slack_bridge_double_puppet_server_map:
+  "{{ matrix_mautrix_slack_homeserver_domain :  matrix_mautrix_slack_homeserver_address }}"
+
+# Default mautrix-slack 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_slack_configuration_extension_yaml`)
+# or completely replace this variable with your own template.
+matrix_mautrix_slack_configuration_yaml: "{{ lookup('template', 'templates/config.yaml.j2') }}"
+
+matrix_mautrix_slack_configuration_extension_yaml: |
+  # Your custom YAML configuration goes here.
+  # This configuration extends the default starting configuration (`matrix_mautrix_slack_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_slack_configuration_yaml`.
+
+matrix_mautrix_slack_configuration_extension: "{{ matrix_mautrix_slack_configuration_extension_yaml | from_yaml if matrix_mautrix_slack_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_slack_configuration_yaml`.
+matrix_mautrix_slack_configuration: "{{ matrix_mautrix_slack_configuration_yaml | from_yaml | combine(matrix_mautrix_slack_configuration_extension, recursive=True) }}"
+
+matrix_mautrix_slack_registration_yaml: |
+  id: slack
+  url: {{ matrix_mautrix_slack_appservice_address }}
+  as_token: "{{ matrix_mautrix_slack_appservice_token }}"
+  hs_token: "{{ matrix_mautrix_slack_homeserver_token }}"
+  # See https://github.com/mautrix/signal/issues/43
+  sender_localpart: _bot_{{ matrix_mautrix_slack_appservice_bot_username }}
+  rate_limited: false
+  namespaces:
+      users:
+      - regex: '^@slack_[a-z-A-Z0-9\-]+:{{ matrix_mautrix_slack_homeserver_domain | regex_escape }}$'
+        exclusive: true
+      - exclusive: true
+        regex: '^@{{ matrix_mautrix_slack_appservice_bot_username | regex_escape }}:{{ matrix_mautrix_slack_homeserver_domain | regex_escape }}$'
+  de.sorunome.msc2409.push_ephemeral: true
+
+matrix_mautrix_slack_registration: "{{ matrix_mautrix_slack_registration_yaml | from_yaml }}"
+
+# Enable End-to-bridge encryption
+matrix_mautrix_slack_bridge_encryption_allow: false
+matrix_mautrix_slack_bridge_encryption_default: "{{ matrix_mautrix_slack_bridge_encryption_allow }}"
+matrix_mautrix_slack_bridge_encryption_key_sharing_allow: "{{ matrix_mautrix_slack_bridge_encryption_allow }}"

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

@@ -0,0 +1,20 @@
+---
+
+- block:
+    - when: matrix_mautrix_slack_enabled | bool
+      ansible.builtin.include_tasks: "{{ role_path }}/tasks/validate_config.yml"
+
+    - when: matrix_mautrix_slack_enabled | bool
+      ansible.builtin.include_tasks: "{{ role_path }}/tasks/setup_install.yml"
+  tags:
+    - setup-all
+    - setup-mautrix-slack
+    - install-all
+    - install-mautrix-slack
+
+- block:
+    - when: not matrix_mautrix_slack_enabled | bool
+      ansible.builtin.include_tasks: "{{ role_path }}/tasks/setup_uninstall.yml"
+  tags:
+    - setup-all
+    - setup-mautrix-slack

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

@@ -0,0 +1,108 @@
+---
+
+- ansible.builtin.set_fact:
+    matrix_mautrix_slack_requires_restart: false
+
+- when: "matrix_mautrix_slack_database_engine == 'postgres'"
+  block:
+    - name: Check if an SQLite database already exists
+      ansible.builtin.stat:
+        path: "{{ matrix_mautrix_slack_sqlite_database_path_local }}"
+      register: matrix_mautrix_slack_sqlite_database_path_local_stat_result
+
+    - when: "matrix_mautrix_slack_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_slack_sqlite_database_path_local }}"
+              dst: "{{ matrix_mautrix_slack_database_connection_string }}"
+              caller: "{{ role_path | basename }}"
+              engine_variable_name: 'matrix_mautrix_slack_database_engine'
+              engine_old: 'sqlite'
+              systemd_services_to_stop: ['matrix-mautrix-slack.service']
+              pgloader_options: ['--with "quote identifiers"']
+
+        - ansible.builtin.set_fact:
+            matrix_mautrix_slack_requires_restart: true
+
+- name: Ensure Mautrix Slack 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_slack_base_path }}", when: true}
+    - {path: "{{ matrix_mautrix_slack_config_path }}", when: true}
+    - {path: "{{ matrix_mautrix_slack_data_path }}", when: true}
+    - {path: "{{ matrix_mautrix_slack_docker_src_files_path }}", when: "{{ matrix_mautrix_slack_container_image_self_build }}"}
+  when: item.when | bool
+
+- name: Ensure Mautrix Slack image is pulled
+  community.docker.docker_image:
+    name: "{{ matrix_mautrix_slack_docker_image }}"
+    source: "{{ 'pull' if ansible_version.major > 2 or ansible_version.minor > 7 else omit }}"
+    force_source: "{{ matrix_mautrix_slack_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_slack_docker_image_force_pull }}"
+  when: not matrix_mautrix_slack_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 slack repository is present on self-build
+  ansible.builtin.git:
+    repo: "{{ matrix_mautrix_slack_container_image_self_build_repo }}"
+    dest: "{{ matrix_mautrix_slack_docker_src_files_path }}"
+    version: "{{ matrix_mautrix_slack_container_image_self_build_branch }}"
+    force: "yes"
+  become: true
+  become_user: "{{ matrix_user_username }}"
+  register: matrix_mautrix_slack_git_pull_results
+  when: "matrix_mautrix_slack_container_image_self_build | bool"
+
+- name: Ensure Mautrix slack Docker image is built
+  community.docker.docker_image:
+    name: "{{ matrix_mautrix_slack_docker_image }}"
+    source: build
+    force_source: "{{ matrix_mautrix_slack_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_slack_git_pull_results.changed }}"
+    build:
+      dockerfile: Dockerfile
+      path: "{{ matrix_mautrix_slack_docker_src_files_path }}"
+      pull: true
+  when: "matrix_mautrix_slack_container_image_self_build | bool"
+
+- name: Ensure mautrix-slack config.yaml installed
+  ansible.builtin.copy:
+    content: "{{ matrix_mautrix_slack_configuration | to_nice_yaml(indent=2, width=999999) }}"
+    dest: "{{ matrix_mautrix_slack_config_path }}/config.yaml"
+    mode: 0644
+    owner: "{{ matrix_user_username }}"
+    group: "{{ matrix_user_groupname }}"
+
+- name: Ensure mautrix-slack registration.yaml installed
+  ansible.builtin.copy:
+    content: "{{ matrix_mautrix_slack_registration | to_nice_yaml(indent=2, width=999999) }}"
+    dest: "{{ matrix_mautrix_slack_config_path }}/registration.yaml"
+    mode: 0644
+    owner: "{{ matrix_user_username }}"
+    group: "{{ matrix_user_groupname }}"
+
+- name: Ensure matrix-mautrix-slack.service installed
+  ansible.builtin.template:
+    src: "{{ role_path }}/templates/systemd/matrix-mautrix-slack.service.j2"
+    dest: "{{ devture_systemd_docker_base_systemd_path }}/matrix-mautrix-slack.service"
+    mode: 0644
+  register: matrix_mautrix_slack_systemd_service_result
+
+- name: Ensure matrix-mautrix-slack.service restarted, if necessary
+  ansible.builtin.service:
+    name: "matrix-mautrix-slack.service"
+    state: restarted
+    daemon_reload: true
+  when: "matrix_mautrix_slack_requires_restart | bool"

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

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

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

@@ -0,0 +1,20 @@
+---
+
+- name: Fail if required mautrix-slack 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_slack_appservice_token', when: true}
+    - {'name': 'matrix_mautrix_slack_homeserver_token', when: true}
+    - {'name': 'matrix_mautrix_slack_database_hostname', when: "{{ matrix_mautrix_slack_database_engine == 'postgres' }}"}
+
+- name: Fail if appservice-slack and mautrix-slack have conflicting bot usernames
+  when: matrix_appservice_slack_enabled | default(False) | bool and matrix_mautrix_slack_appservice_bot_username == matrix_appservice_slack_bot_name | default ('')
+  ansible.builtin.fail:
+    msg: |
+      The appservice-slack and mautrix-slack components are both enabled and use the same bot username ({{ matrix_mautrix_slack_appservice_bot_username }}), as per their default configuration, which causes a conflcit.
+      To resolve the conflict, make one of these components use a different username.
+      Consider either changing `matrix_mautrix_slack_appservice_bot_username` (the bot username for the mautrix-slack component) or `matrix_appservice_slack_bot_name` (the bot username for the appservice-slack component).
+      We recommend that you change the username for the newly-added (and yet unused) component.

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

@@ -0,0 +1,240 @@
+#jinja2: lstrip_blocks: "True"
+# Homeserver details.
+homeserver:
+    # The address that this appservice can use to connect to the homeserver.
+    address: {{ matrix_mautrix_slack_homeserver_address | to_json }}
+    # The domain of the homeserver (for MXIDs, etc).
+    domain: {{ matrix_mautrix_slack_homeserver_domain | to_json }}
+
+    # 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 slack 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
+
+# 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_slack_appservice_address | to_json }}
+
+    # 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: {{ matrix_mautrix_slack_appservice_database_type|to_json }}
+        # 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_slack_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: slack
+    # Appservice bot details.
+    bot:
+        # Username of the appservice bot.
+        username: {{ matrix_mautrix_slack_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: Slack bridge bot
+        avatar: mxc://maunium.net/pVtzLmChZejGxLqmXtQjFxem
+    # Whether or not to receive ephemeral events via appservice transactions.
+    # Requires MSC2409 support (i.e. Synapse 1.22+).
+    # You should disable bridge -> sync_with_custom_puppets when this is enabled.
+    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_slack_appservice_token | to_json }}
+    hs_token: {{ matrix_mautrix_slack_homeserver_token | to_json }}
+
+# Bridge config
+bridge:
+    # Localpart template of MXIDs for Slack users.
+    # {{ '{{.}}' }} is replaced with the internal ID of the Slack user.
+    username_template: "{{ 'slack_{{.}}' }}"
+    # Displayname template for Slack users.
+    # TODO: document variables
+    displayname_template: "{{ '{{.RealName}} (S)' }}"
+    bot_displayname_template: "{{ '{{.Name}} (bot)' }}"
+    channel_name_template: "{{ '#{{.Name}}' }}"
+
+    portal_message_buffer: 128
+
+    # Should the bridge send a read receipt from the bridge bot when a message has been sent to Slack?
+    delivery_receipts: true
+    # 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
+
+    # Should the bridge sync with double puppeting to receive EDUs that aren't normally sent to appservices.
+    sync_with_custom_puppets: false
+    # 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
+
+    # Servers to always allow double puppeting from
+    double_puppet_server_map:
+        "{{ matrix_mautrix_slack_homeserver_domain }}": {{ matrix_mautrix_slack_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_slack_bridge_login_shared_secret_map|to_json }}
+
+    message_handling_timeout:
+        # Send an error message after this timeout, but keep waiting for the response until the deadline.
+        # This is counted from the origin_server_ts, so the warning time is consistent regardless of the source of delay.
+        # If the message is older than this when it reaches the bridge, the message won't be handled at all.
+        error_after: 10s
+        # Drop messages after this timeout. They may still go through if the message got sent to the servers.
+        # This is counted from the time the bridge starts handling the message.
+        deadline: 60s
+
+    # The prefix for commands. Only required in non-management rooms.
+    command_prefix: "{{ matrix_mautrix_slack_command_prefix }}"
+    # 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 Slack 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-token` or `login-password` to log in."
+        # Optional extra text sent when joining a management room.
+        additional_help: ""
+
+    backfill:
+        # Allow backfilling at all? Requires MSC2716 support on homeserver.
+        enable: false
+
+        # If a backfilled chat is older than this number of hours, mark it as read even if it's unread on Slack.
+        # Set to -1 to let any chat be unread.
+        unread_hours_threshold: 720
+
+        # Number of messages to immediately backfill when creating a portal.
+        immediate_messages: 10
+
+        # Settings for incremental backfill of history.
+        incremental:
+            # Maximum number of messages to backfill per batch.
+            messages_per_batch: 100
+            # The number of seconds to wait after backfilling the batch of messages.
+            post_batch_delay: 20
+            # The maximum number of messages to backfill per portal, split by the chat type.
+            # If set to -1, all messages in the chat will eventually be backfilled.
+            max_messages:
+                # Channels
+                channel: -1
+                # Group direct messages
+                group_dm: -1
+                # 1:1 direct messages
+                dm: -1
+
+    # 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_slack_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_slack_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_slack_bridge_encryption_key_sharing_allow|to_json }}
+        # 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 WhatsApp 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
+
+    # 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:
+    #    relay - Talk through the relaybot (if enabled), no access otherwise
+    #     user - Access to use the bridge to chat with a Slack account.
+    #    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_slack_bridge_permissions|to_json }}
+
+logging:
+    directory: ./logs
+    file_name_format: ''
+    file_date_format: "2006-01-02"
+    file_mode: 384
+    timestamp_format: Jan _2, 2006 15:04:05
+    print_level: {{ matrix_mautrix_slack_logging_level | to_json }}
+    print_json: false
+    file_json: false

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

@@ -0,0 +1,43 @@
+#jinja2: lstrip_blocks: "True"
+[Unit]
+Description=Matrix Mautrix Slack bridge
+{% for service in matrix_mautrix_slack_systemd_required_services_list %}
+Requires={{ service }}
+After={{ service }}
+{% endfor %}
+{% for service in matrix_mautrix_slack_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-slack 2>/dev/null || true'
+ExecStartPre=-{{ devture_systemd_docker_base_host_command_sh }} -c '{{ devture_systemd_docker_base_host_command_docker }} rm matrix-mautrix-slack 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-slack \
+			--log-driver=none \
+			--user={{ matrix_user_uid }}:{{ matrix_user_gid }} \
+			--cap-drop=ALL \
+			--network={{ matrix_docker_network }} \
+			--mount type=bind,src={{ matrix_mautrix_slack_config_path }},dst=/config,ro \
+			--mount type=bind,src={{ matrix_mautrix_slack_data_path }},dst=/data \
+			--workdir=/data \
+			{% for arg in matrix_mautrix_slack_container_extra_arguments %}
+			{{ arg }} \
+			{% endfor %}
+			{{ matrix_mautrix_slack_docker_image }} \
+			/usr/bin/mautrix-slack -c /config/config.yaml -r /config/registration.yaml --no-update
+
+ExecStop=-{{ devture_systemd_docker_base_host_command_sh }} -c '{{ devture_systemd_docker_base_host_command_docker }} kill matrix-mautrix-slack 2>/dev/null || true'
+ExecStop=-{{ devture_systemd_docker_base_host_command_sh }} -c '{{ devture_systemd_docker_base_host_command_docker }} rm matrix-mautrix-slack 2>/dev/null || true'
+Restart=always
+RestartSec=30
+SyslogIdentifier=matrix-mautrix-slack
+
+[Install]
+WantedBy=multi-user.target