Chapter 5

Security + Observability

Sentinel WAF + Pulse + audit log — the production safety net.

~21 min total3 lessonsAssignment

By the end of this chapter you'll be able to

Configure Sentinel
Read Pulse
Wire the audit log

Lessons

Module: Production safety

Sentinel WAF

Rate limit, AuthShield, Anomaly.

8mmedium

Pulse observability

p50/p95/p99 + per-route metrics.

7measy

Audit log

Tamper-evident SHA-256 chain.

6mmedium

Chapter assignment

Trip Sentinel + read Pulse

Hit `/api/auth/login` with bad credentials 6 times in a row to trigger Sentinel AuthShield. Then open Pulse and screenshot the p95 latency for `/api/health` over the last hour.

See success criteria

Lesson 1 takes ~8 min.

Start chapter

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ch.4: Batteries: Jobs, Mail, Storage, AI ch.6: Deploy