Quick Notes104 words
Deployment strategies — quick notes
Deployment strategies — quick notes
| Pattern | Purpose |
|---|---|
| Blue-green | Two environments, atomic switch, instant rollback |
| Canary | Small traffic slice first |
| Ring / progressive exposure | Widening audiences over time |
| A/B testing | Measurement, not safety |
| Feature flags | Decouple release from deployment; kill switch |
Traps
- A/B testing offered as a risk-reduction answer — it is a product experiment.
blueGreen/ringedasstrategy:keywords — they do not exist. OnlyrunOnce,rolling,canary.- Fastest rollback for flagged code is turning the flag off, not redeploying.