Review-apps - Document "namespace stuck in terminating space" production incident
Context
gitlab-org/gitlab#416442 (closed)
We had a namespace stuck in terminating
state for ~40h, blocking review-apps deployments.
Goal
- Add an entry in the review-apps RUNBOOK for this problem
- Add a GCP alert for when a namespace is stuck in terminating state for more than 1h or so
Technical details
https://cloud.google.com/kubernetes-engine/docs/troubleshooting#namespace_stuck_in_terminating_state is a great guide to mention.