 only supports the simple (random percentage) canary approach. If, instead, we wanted to limit the visibility of the canary to requests based on some specific criteria, we still need another solution.</p><h2 id=enter-istio>Enter Istio</h2><p>With Istio, traffic routing and replica deployment are two completely independent functions. The number of pods implementing services are free to scale up and down based on traffic load, completely orthogonal to the control of version traffic routing. This makes managin