Spring Boot Feature Toggles & Canary Releases: Decoupling Deployment from Release for Safe Microservice Iteration
This article details a production-grade system for implementing dynamic feature toggles and canary releases in Spring Boot, covering architecture design, config-center integration with Nacos/Apollo, code patterns using AOP and strategy routing, traffic-splitting algorithms with user stickiness, A/B test metrics collection, and toggle lifecycle governance with hard TTL cleanup.
