tests/integration/pilot/testdata/traffic-mirroring-template.yaml

apiVersion: networking.istio.io/v1alpha3
kind: VirtualService
metadata:
  name: {{.Name}}
spec:
  hosts:
    - b
  http:
    - route:
        - destination:
            host: b
      mirror:
        host: {{.MirrorHost}}
{{- if not .Absent }}
      mirrorPercentage:
        value: {{.Percent}}
{{- end }}