matrix-docker-ansible-deploy/docs/configuring-playbook-bridge-mautrix-slack.md

Setting up Mautrix Slack bridging (optional)

^{Refer the common guide for configuring mautrix bridges: Setting up a Generic Mautrix Bridge}

Note: bridging to Slack can also happen via the mx-puppet-slack and matrix-appservice-slack bridges supported by the playbook.

• For using as a Bot we recommend the Appservice Slack, because it supports plumbing. Note that it is not available for new installation unless you have already created a classic Slack application, because the creation of classic Slack applications, which this bridge makes use of, has been discontinued.
• 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 for you.

See the project's documentation to learn what it does and why it might be useful to you.

See the features and roadmap 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.

Note that neither of these methods are officially supported by Slack. matrix-appservice-slack uses a Slack bot account which is the only officially supported method for bridging a Slack channel.

Enable Appservice Double Puppet (optional)

If you want to set up Double Puppeting (hint: you most likely do) for this bridge automatically, you need to have enabled Appservice Double Puppet service for this playbook.

See this section on the common guide for configuring mautrix bridges for details about setting up Double Puppeting.

Adjusting the playbook configuration

To enable the bridge, add the following configuration to your inventory/host_vars/matrix.example.com/vars.yml file:

matrix_mautrix_slack_enabled: true

Extending the configuration

There are some additional things you may wish to configure about the bridge.

See this section on the common guide for configuring mautrix bridges for details about variables that you can customize and the bridge's default configuration, including bridge permissions, encryption support, bot's username, etc.

Installing

After configuring the playbook, run it with playbook tags as below:

ansible-playbook -i inventory/hosts setup.yml --tags=setup-all,ensure-matrix-users-created,start

Notes:

• The ensure-matrix-users-created playbook tag makes the playbook automatically create the bot's user account.

• The shortcut commands with the just program are also available: just install-all or just setup-all

  just install-all is useful for maintaining your setup quickly (2x-5x faster than just setup-all) when its components remain unchanged. If you adjust your vars.yml to remove other components, you'd need to run just setup-all, or these components will still remain installed.

Usage

To use the bridge, you need to start a chat with @slackbot:example.com (where example.com is your base domain, not the matrix. domain).

You can then follow instructions on the bridge's official documentation on Authentication.

If you authenticated using a token, the recent chats will be bridged automatically (depending on the conversation_count setting). Otherwise (i.e. logging with the Discord application), the chats the bot is in will be bridged automatically.