Path of the App Developer · CKAD-style
The Hospital Campaign
The town hospital is moving onto the cluster, and you're the developer on call. Apply blueprints for the admissions desk, wire ConfigMaps and Secrets into the pharmacy, cure Running-but-never-Ready monitors, survive your own rollout gone wrong — and hold the line when the outbreak hits.
Starring Dr. Iris, Devin the intern, and one extremely important gift shop.
Code Blue at Admissions
The hospital goes digital — if the intern's blueprint compiles.
- building apps from YAML
- kubectl apply -f
- Deployments & Services
The Pharmacy Formulary
Pills without config are just guesses — and the vault won't open without its Secret.
- ConfigMaps & env variables
- Secrets & secretKeyRef
- debugging CrashLoopBackOff
The Heartbeat Monitors
Every monitor is green except the ones that matter — Running is not Ready.
- readiness probes
- Running vs Ready
- logs, events & describe
The Records Rollout
You get to push the button this time. The button pushes back.
- rollouts & rollbacks
- set image / rollout undo / status
- deploying critical apps safely
Outbreak Protocol
Everything you've learned, all at once, with the whole island coughing.
- multi-fault incident response
- Secrets under pressure
- capacity triage for critical care