istio构建流量泳道的路由配置

apiVersion: networking.istio.io/v1alpha3
kind: VirtualService
metadata:
  name: srv
  namespace: default
spec:
  hosts:
  - srv
  http:
  - match:
    - headers:
        x-colorant:
            exact:user-v1
    route:
    - destination:
        host: srv
        subset: user-v1
  - route:
    - destination:
        host: srv
        subset: default
---
apiVersion: networking.istio.io/v1alpha3
kind: DestinationRule
metadata:
  name: srv
  namespace: default
spec:
  host: srv
  subsets:
  - name: default
    labels:
      project_env: default
  - name: user-v1
    labels:
      project_env: user-v1

用法：
部署应用增加 label: project_env:xxx
请求时加header: x-colorant:xxx