kruise rollouts实现全链路灰度，东西流量（svc相互调用）是怎么做到的？

[sunyuanfeng]

svc是四层东西流量，如何实现根据head进行灰度，是否必须要依赖于MSE的应用呢？

[furykerry]

kruise rollout does not implement traffic routing itself, instead it rely on gateway or mesh implementation to provide such capabilities. Kruise Rollout just interact with gateway or mesh with gateway API. To enable traffic routing for east-west traffic, you need a gateway or mesh provider that support gateway API or even end-to-end traffic routing support. MSE(or higress) is one of such gateway.

[sunyuanfeng]

So, every request for east-west traffic needs to go through the gateway before being sent to SVC.
Is that so?