ChatOps integration for demo
This issue tries to discuss possible approaches for integrating with ChatOps for purposes of a demo: https://gitlab.com/gitlab-org/gitlab-ce/issues/22190
There's a lot of material already written:
- Slack slash commands: https://gitlab.com/gitlab-org/gitlab-ce/issues/22182
- Slack app: https://gitlab.com/gitlab-org/gitlab-ce/issues/20799
- Mattermost slash commands: https://gitlab.com/gitlab-org/gitlab-ce/issues/22540
There's also a Slack/Mattermost slash commands implemented already: https://gitlab.com/gitlab-org/gitlab-ce/merge_requests/6400
We decided that we should use Mattermost for demo purposes.