我如何用Istio将交通镜像到两个地方?

为此,我有以下虚拟服务和目标规则,将流量镜像到我的canary部署:

apiVersion: networking.istio.io/v1alpha3
kind: VirtualService
metadata:
  name: goldengoose
  namespace: goldengoose
spec:
  hosts:
  - "*"
  gateways:
  - goldengoose
  http:
  - route:
    - destination:
        port:
          number: 80
        host: goldengoose
        subset: prod
    mirror:
      host: goldengoose
      subset: canary
---
apiVersion: networking.istio.io/v1alpha3
kind: DestinationRule
metadata:
  name: goldengoose
  namespace: goldengoose
spec:
  host: goldengoose
  subsets:
  - name: prod
    labels:
      track: prod
  - name: baseline
    labels:
      track: baseline
  - name: canary
    labels:
      track: canary

如何将流量镜像到基线,以便基线和canary接收到与生产部署相同的流量?