Quick Notes136 words
Feature flags with Azure App Configuration — quick notes
Feature flags (App Configuration) — quick notes
| Term | Definition |
|---|---|
| Feature flag | Variable with binary on/off state + associated code block |
| Feature manager | App package managing flag lifecycle, caching, state updates |
| Feature filter | Rule deciding on/off per request — percentage, time window, audience |
| Use case | Meaning |
|---|---|
| Code branch management | Dark deployment; avoid long-lived branches |
| Test in production | Internal users get real production experience |
| Flighting | Incremental percentage rollout |
| Instant kill switch | Disable with no rebuild/redeploy |
| Selective activation | Segment users |
Traps
- Flag state is cached — a kill switch is not necessarily instant.
- Stale flags are dead code and untested branches. Retire after rollout.