Add aws-gateway-load-balancer-tunnel-handler (gwlbtun)
It is designed to be run on a GWLB target, takes in the Geneve encapsulated data and creates Linux tun (layer 3) interfaces per endpoint. This allows standard Linux tools (iptables, etc.) to work with GWLB.
https://github.com/aws-samples/aws-gateway-load-balancer-tunnel-handler
https://aws.amazon.com/blogs/networking-and-content-delivery/how-to-integrate-linux-instances-with-aws-gateway-load-balancer/