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Level 10 / Project 11 - Production Readiness Director

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Concept This project — Quiz Flashcards — —

Focus

  • Checklist-driven readiness evaluation with categorical checks
  • Go/No-Go/Conditional decision logic with configurable thresholds
  • Immutable service manifest describing production preparedness
  • Category-grouped results (observability, reliability, security, operations)

Why this project exists

Launching a service without checking readiness leads to incidents. This project codifies the readiness review as executable checks, giving teams consistent evaluation and a clear audit trail of what was verified before production.

Run (copy/paste)

cd <repo-root>/projects/level-10/11-production-readiness-director
python project.py
pytest -v

Expected terminal output

{
  "service": "payment-service",
  "decision": "conditional_go",
  "pass_rate": "88%",
  ...
}

Alter it (required)

  1. Add a BackupCheck and SLACheck that evaluate the corresponding manifest fields.
  2. Add weighted categories — security failures should block launch regardless of pass rate.
  3. Add an override mechanism where a VP can force a "go" decision with an audit trail.

Break it (required)

  1. Create a ServiceManifest with all fields False and observe the NO_GO decision.
  2. Set thresholds to zero and watch every service get auto-approved regardless of readiness.
  3. Register no checks and observe a 0% pass rate.

Fix it (required)

  1. Add a minimum check count requirement — evaluate should fail if fewer than 3 checks are registered.
  2. Make security checks "hard blockers" that always produce NO_GO on failure.
  3. Test both safeguards.

Explain it (teach-back)

  1. Why is the service manifest immutable (frozen dataclass)?
  2. How does the three-tier decision system (go/conditional/no-go) help operations teams?
  3. Why are checks categorized — what does grouping by observability/reliability/security enable?
  4. How would you integrate this into a CI/CD pipeline?

Mastery check

You can move on when you can: - add a new ReadinessCheck and register it in the director, - explain the threshold-based decision logic, - create a manifest that produces a CONDITIONAL_GO decision, - describe how Google and Netflix approach production readiness reviews.

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