How can I use AWS traffic mirroring to copy the traffic from my EKS cluster

Hi, traffic mirroring is happening at network level (Elastic Network Interface - ENI) and is not really depending on EKS cluster. You can configure the traffic mirroring by following this tutorial and attache the source of the VPC mirroring to the ENI interface of EKS.

https://docs.aws.amazon.com/vpc/latest/mirroring/traffic-mirroring-getting-started.html