Path of the Cluster Admin · CKA-style
The City Campaign
Kubetopia's cobblestone streets run on Kubernetes: every building is a node, every glowing crate a pod. As the town's new SRE you'll debug crash-looping bakeries, drain dying nodes in a blackout, roll back cursed deploys and ration capacity through the storm of the century.
Starring Mayor Beatrix, Old Sal the retired SRE, and Kublet your pager-bot.
First Shift at Kubetopia
The bakery's website is down and the mayor wants croissants.
- kubectl get / describe / logs
- fixing a CrashLoopBackOff
- scaling a deployment
The Grand Festival Fiasco
Ticket sales are dead, the posters are blank, and the band arrives at dawn.
- Services & label selectors
- fixing an ImagePullBackOff
- capacity for traffic surges
Blackout at Midnight
A node goes dark, and half the town's lights go with it.
- node failures & pod eviction
- cordon / drain / uncordon
- reading kubectl get events
The Cursed Deploy
Marketing shipped payments 3.0 on launch day. Of course they did.
- rollout undo (rollbacks)
- resource requests & capacity math
- unschedulable Pending pods
Storm Over Kubetopia
Half the cluster is gone. Choose what lives.
- cascading node failures
- triage under scarce capacity
- prioritizing critical workloads
The Grand Library
Raise a whole new building from blueprints — if the YAML lets you.
- writing & fixing YAML manifests
- kubectl apply -f
- selectors vs labels in specs
The Cloud Queen's Inspection
Everything is Running. Nothing is Ready. Royalty is at the gates.
- ConfigMaps & app configuration
- readiness probes
- kubectl edit on live resources