virtualservice标头匹配

 

[root@k8s-master 07-headers-operation]# kubectl apply -f virtualservice-demoapp.yaml 
virtualservice.networking.istio.io/demoapp configured

[root@k8s-master 07-headers-operation]# cat virtualservice-demoapp.yaml 
apiVersion: networking.istio.io/v1beta1
kind: VirtualService
metadata:
  name: demoapp
spec:
  hosts:
  - demoapp
  http:
  - name: canary
    match:
    - headers:
        x-canary: 
          exact: "true"
    route:
    - destination:
        host: demoapp
        subset: v11
      headers:
        request:
          set:
            User-Agent: Chrome
        response:
          add:
            x-canary: "true"
  - name: default
    headers:
      response:
        add:
          X-Envoy: test
    route:
    - destination:
        host: demoapp
        subset: v10

直接访问demoapp默认是要v10

看下响应报文，可以看到我们自己加进来的x-envoy: test的报文，被匹配到了第二个路由规则

看下第一个路由规则

看下访问日志

kubectl logs demoappv11-77755cdc65-wxqr9 -c istio-proxy