a6-plugin-traffic-split

Overview

The traffic-split plugin dynamically directs portions of traffic to different upstream services based on custom rules (match) and weighted distributions (weighted_upstreams). Use it for canary releases, blue-green deployments, and A/B testing — all without modifying DNS or load balancers.

When to Use

• Canary release: gradually shift traffic to a new version (10% → 50% → 100%)
• Blue-green deployment: switch traffic based on request headers or cookies
• A/B testing: split traffic by user attributes (headers, query params, cookies)
• Feature flags: route specific users to feature branches
• Multi-version API: run multiple backend versions simultaneously

Plugin Configuration Reference (Route/Service)