What is the rollback strategy for Feature flags?

Feature flags are an essential part of modern software development, allowing teams to enable or disable features dynamically. However, when using feature flags, it’s crucial to have a rollback strategy in place to handle any issues that might arise when a feature is turned on.

Rollback Strategy for Feature Flags

  • Immediate Deactivation: The simplest rollback option is to deactivate the feature flag immediately if issues are detected.
  • Monitoring and Alerts: Set up alerts to monitor for failure rates and performance issues when a feature is enabled.
  • Canary Releases: Gradually roll out the feature to a small subset of users before a full launch.
  • Versioning: Maintain previous versions of your features to quickly revert if needed.
  • User Feedback: Collect feedback from users to identify hidden issues before full-scale activation.

Example Rollback Implementation

<?php // Check if feature is enabled if (FeatureFlag::isEnabled('new_feature')) { // New functionality here } else { // Rollback to previous functionality } ?>

Feature flags rollback strategy software development canary releases monitoring alerts

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