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devlearn-post-ship — reference

Smoke test script (static todo app)

  1. Open https://YOUR_URL in incognito
  2. Add todo "smoke test"
  3. Refresh — still there (if persistence)
  4. Delete — gone

API smoke

curl -sf https://YOUR_URL/api/health
curl -sf https://YOUR_URL/api/todos

-f fails on HTTP error — teach status codes.

Platform rollback

Platform Rollback path
Vercel Deployments → Promote previous
Netlify Deploys → Publish previous
Fly.io fly releases rollback
K8s rollout undo (deep)

Canary (concept)

Route 5% traffic to new version; watch error rate; full promote or rollback.

Viber: one sentence. Seasoned: metric + threshold.

What to monitor first 24h

  • Error rate in logs
  • Latency spike
  • Failed payments / auth (if applicable)
  • Support tickets / user reports

Post-ship ≠ done forever

Schedule: revisit pre-ship checklist next release.

Teach release cadence: small ships easier to verify than big bang.

Healthy declaration

All smoke pass + no P0 errors in first hour → healthy enough; keep watching.

Don't demand perfection on day one for side projects.