destinationrule调度算法

[root@k8s-master 11-cluster-loadbalancing]# kubectl apply -f destinationrule-demoapp.yaml 
destinationrule.networking.istio.io/demoapp configured

[root@k8s-master 11-cluster-loadbalancing]# cat destinationrule-demoapp.yaml 
apiVersion: networking.istio.io/v1beta1
kind: DestinationRule
metadata:
  name: demoapp
spec:
  host: demoapp
  trafficPolicy:
    loadBalancer:
      simple: LEAST_CONN
  subsets:
  - name: v10
    labels:
      version: v1.0
    trafficPolicy:
      loadBalancer:
        consistentHash:
          httpHeaderName: X-User
  - name: v11
    labels:
      version: v1.1

直接curl 请求结果是轮询的

我们加入了X-User标头，可以看到请求结果一只被绑定了。