I saw here in the documentation that the goal was to send “a portion of v1 traffic to v2”: https://preliminary.istio.io/docs/tasks/traffic-management/mirroring/
But at the end %100 was mirrored. I checked the code. Envoy has fractional mirroring and I saw it in some parts of Istio code:
Can someone please give a hint how to enable this feature? We need to mirror %1 or our traffic only.