drin-feature-flag-workflow

Feature Flag Workflow

Purpose

To decouple deployment from release, allowing for safer launches and real-world testing.

Patterns

• Release Toggles: Gradual rollout to % of users.
• Experiment Toggles: A/B testing variations.
• Ops Toggles: Kill-switches for heavy or buggy features.
• Permission Toggles: Enabling features for specific tiers or beta users.

Lifecycle

1. Create: Define flag in code and manager (LaunchDarkly/GrowthBook).
2. Implement: Wrapped code blocks with flag checks.
3. Rollout: Increase % monitoring telemetry.
4. Cleanup: Relentlessly remove flags once feature is permanent.

Rules

• Name flags by intent, not implementation.
• Don't leave flags in the code for > 3 months (Tech Debt).