cluster/router/uniform/internal/virtual_service.yml

apiVersion: service.dubbo.apache.org/v1alpha1
kind: VirtualService
metadata:
  name: demo-route
spec:
  hosts:
    - demo  # app name
  dubbo:
    - service:
        - exact: com.taobao.hsf.demoService:1.0.0
        - exact: com.taobao.hsf.demoService:2.0.0
      routedetail:
        - name: sayHello-String-method-route
          match:
            - method:
                name_match:
                  exact: "sayHello"
          #                  argp:
          #                    - string
          route:
            - destination:
                host: demo
                subset: v1
              fallback:
                destination:
                  host: demo
                  subset: v2
                fallback:
                  destination:
                    host: demo
                    subset: v3

        - name: sayHello-method-route
          match:
            - method:
                name_match:
                  exact: "s-method"
          route:
            - destination:
                host: demo
                subset: v2
              fallback:
                destination:
                  host: demo
                  subset: v3
        - name: some-method-route
          match:
            - method:
                name_match:
                  exact: "some-method"
          route:
            - destination:
                host: demo
                subset: v4

#        - name: interface-route
#          route:
#            - destination:
#              host: demo
#              subset: v3
        - name: final
          match:
            - method:
                name_match:
                  exact: "GetUser"

          route:
            - destination:
                host: demo
                subset: v1
              fallback:
                destination:
                  host: demo
                  subset: v2
                fallback:
                  destination:
                    host: demo
                    subset: v3
            - destination:
                host: demo
                subset: v3
              fallback:
                destination:
                  host: demo
                  subset: v2
                fallback:
                  destination:
                    host: demo
                    subset: v1
    - service:
        - exact: com.taobao.hsf.demoService:1.0.0
        - exact: org.apache.dubbo.UserProvider
      routedetail:
        - name: sayHello-String-method-route
          match:
            - method:
                name_match:
                  exact: "sayHello"
          #                  argp:
          #                    - string
          route:
            - destination:
                host: demo
                subset: v1
              fallback:
                destination:
                  host: demo
                  subset: v2
                fallback:
                  destination:
                    host: demo
                    subset: v3

        - name: sayHello-method-route
          match:
            - method:
                name_match:
                  exact: "s-method"
          route:
            - destination:
                host: demo
                subset: v2
              fallback:
                destination:
                  host: demo
                  subset: v3
        - name: some-method-route
          match:
            - method:
                name_match:
                  exact: "some-method"
          route:
            - destination:
                host: demo
                subset: v4

        #        - name: interface-route
        #          route:
        #            - destination:
        #              host: demo
        #              subset: v3
        - name: final
          match:
            - method:
                name_match:
                  exact: "GetUser"

          route:
            - destination:
                host: demo
                subset: v1
              fallback:
                destination:
                  host: demo
                  subset: v2
                fallback:
                  destination:
                    host: demo
                    subset: v3
            - destination:
                host: demo
                subset: v3
              fallback:
                destination:
                  host: demo
                  subset: v2
                fallback:
                  destination:
                    host: demo
                    subset: v1