Kubernetes Intermediate About 30 min +190 XP

Webapp Pods Never Become Available

The migrated webapp has shown 0 of 1 available replicas from the moment it was applied to the new cluster four minutes ago.

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Briefing

webapp is the last service in the move to the new cluster, and the traffic switch is waiting on it.

Its Deployment applied cleanly four minutes ago and the image pulled on the first try, yet the pod is not running.

The old cluster is still serving, so customers are unaffected for now, but the cutover window closes at the top of the hour.

Sam wonders whether the new cluster's registry mirror handed out a broken image.

The fix is yours to find: hints, the recovery checks and the debrief unlock inside the incident.

01
Get paged
The alert fires and the clock starts. Read the page and the briefing.
02
Investigate
Work in a simulated shell with realistic output: logs, configs, services.
03
Fix it
Change the system the way you would in production. Hints are there if you get stuck.
04
Prove it
Automated checks verify the recovery, then the debrief explains what happened.

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