Setting up slash commands with external Mattermost server

Everyone can contribute. Help move this issue forward while earning points, leveling up and collecting rewards.

• Close this issue

When using the GitLab omnibus docker package you can not configure Mattermost Slash commands with an external Mattermost Instance. It seems to be expected to use the integrated Mattermost instance. This might not be desirable if users already have a Mattermost server, want more control over the server (using newer versions) and for seperation of intrests.

See the following Screenshot:

The left side shows Gitlab.com (Gitlab SAS), the right side a fresh self hosted GitLab instance via Docker.

Is there a option to use an external Mattermost Instance?