Paths/Backend Engineer/Service Design & Reliability / Production Readiness
Pass the Readiness Checklist
A service is ready when it can be observed, alerted on and run by somebody else at 3am. Write the checklist it has to pass.
Validator
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01Requirements
live checks- File ~/backend/services/readiness.md exists○
- The document lists the health endpoints○
- The document states the objective and the alert○
- The document points at a runbook○
02Walkthrough
1 of 4 revealed- 01
List the health endpoints
/healthz says the process is alive, /readyz says it can serve traffic. They answer different questions.
echo '# Production readiness\n\n## Health\n\n- /healthz - the process is alive\n- /readyz - the service can serve traffic' > ~/backend/services/readiness.md - 3 locked · each failed submit reveals one
03Stuck?
0 of 3 revealedTake a hint without losing the lab — each one points at the thing to look at, not at the answer.
04AI Tutor
guides, never solvesTell me what you're stuck on — I'll nudge, not solve. Which requirement are you looking at?
04Notebook
saved locally in this browserlearner@lab — ubuntu:24.04
Session is disposable
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