Bot Mattermost plugins
In your Tuleap, you can find the package name using:
yum search tuleap-plugin-botmattermost
and to install the plugin you want.
They are three plugins available in Tuleap RPM:
The botmattermost plugin is mandatory to use the others.
You can install botmattermost-git for Tuleap Git notification plugin and stand-up summary in Agile Dashboard plugin.
After enabling it, this plugin can be reached in
Admin > PLUGINS > Bot Mattermost.
Click on Add Bot to create a new bot which can be used later by others Slack & Mattermost like BotMattermost-Git or BotMattermost-AgileDashboard.
You need a Webhook URL from Mattermost to create a new Bot. You can visit the Mattermost documentation concerning Incoming Webhook to help you.
Now you can pass to the configuration of others Slack & Mattermost to make your first Mattermost integration.