modul 3 — shipping to production
monitoring and the fix loop in production
Live means users hit the bugs before you do. Logs tell you what broke, rollback buys you time, and the module 1 fix loop closes the incident.
~3 min read · ~8 min with the exercise · v1.1 · verified: 2026-07-15
the bug report now comes from a stranger
On localhost, you found your own bugs. Live, a user finds them, and the report arrives late, vague, or never. Production work therefore starts with visibility: you need the platform to tell you what broke before a support email does. The good news carries over from module 1: the fix loop you learned there (reproduce, isolate, fix, verify) survives intact. Production changes where the evidence comes from and adds one move, the rollback.