The difference between Istio's `DestinationRule` vs Kubernetes `Service`?
问题 I just read the documentation of istio 1.0.0, especially its concept. There is one thing that I am trying to understand, especially the existence of DestinationRule. So, before using Istio, the only way to expose pods is through Kubernetes's Service object. Now, using Istio, there are DestinationRule and VirtualService . I understand that in Kubernetes's service, we can define what pod's label should the service routes the traffic. In istio, we also capable of do that by using