Istio的URL重定向

这个事例是基于上一个事例之上的

[root@k8s-master 05-url-redirect-and-rewrite]# kubectl apply -f ./

[root@k8s-master 05-url-redirect-and-rewrite]# cat deploy-backend.yaml 
---
apiVersion: apps/v1
kind: Deployment
metadata:
  labels:
    app: backend
    version: v3.6
  name: backendv36
spec:
  progressDeadlineSeconds: 600
  replicas: 2
  selector:
    matchLabels:
      app: backend
      version: v3.6
  template:
    metadata:
      creationTimestamp: null
      labels:
        app: backend
        version: v3.6
    spec:
      containers:
      - image: ikubernetes/gowebserver:v0.1.0
        imagePullPolicy: IfNotPresent
        name: gowebserver
        env:
        - name: "SERVICE_NAME"
          value: "backend"
        - name: "SERVICE_PORT"
          value: "8082"
        - name: "SERVICE_VERSION"
          value: "v3.6"
        ports:
        - containerPort: 8082
          name: web
          protocol: TCP
        resources:
          limits:
            cpu: 50m
---
apiVersion: v1
kind: Service
metadata:
  name: backend
spec:
  ports:
    - name: http-web
      port: 8082
      protocol: TCP
      targetPort: 8082
  selector:
    app: backend
    version: v3.6
---
[root@k8s-master 05-url-redirect-and-rewrite]# cat virtualservice-demoapp.yaml 
apiVersion: networking.istio.io/v1beta1
kind: VirtualService
metadata:
  name: demoapp
spec:
  hosts:
  - demoapp
  http:
  - name: rewrite
    match:
    - uri:
        prefix: /canary
    rewrite:
      uri: /
    route:
    - destination:
        host: demoapp
        subset: v11
  - name: redirect
    match:
    - uri:
        prefix: "/backend"
    redirect:
      uri: /
      authority: backend
      port: 8082
  - name: default
    route:
    - destination:
        host: demoapp
        subset: v10
[root@k8s-master 05-url-redirect-and-rewrite]# cat virtualservice-proxy.yaml 
apiVersion: networking.istio.io/v1beta1
kind: VirtualService
metadata:
  name: proxy
spec:
  hosts:
  - proxy
  http:
  - name: redirect
    match:
    - uri:
        prefix: "/backend"
    redirect:
      uri: /
      authority: backend
      port: 8082
  - name: default
    route:
    - destination:
        host: proxy

 我们直接访问proxy，就被直接代理到了demoapp 

我们访问proxy/backend就直接被重定向了

我门直接访问demoapp:8080是v1.0，demoapp:8080/canary是v1.1