Configure Mattermost/Slack chat commands at instance level
Description
For single-tenant installations of GitLab, including the I2P demo, teams should be able to enable a single chat command integration (Mattermost or Slack) for the entire instance. This implies that the command structure for the chat commands would allow specifying specific projects.
Proposal
Links / references
- Depends on
Documentation blurb
(Write the start of the documentation of this feature here, include:
- Why should someone use it; what's the underlying problem.
- What is the solution.
- How does someone use this
During implementation, this can then be copied and used as a starter for the documentation.)