<p>With Istio, Team A can still implement their canaries by having Service B call Service A through Istio’s ingress gateway.</p><h2 id=background-traffic-routing-in-an-istio-mesh>Background: traffic routing in an Istio mesh</h2><p>But how can you use Istio’s traffic management capabilities without updating each of your applications’ Pods to include the Istio sidecar? Before answering that question, let’s take a quick high-level look at how traffic enters an Istio mesh and how it’s routed.</p><p>Po