There are 5 repositories under k8s-sig-network topic.
Configure external DNS servers (AWS Route53, Google CloudDNS and others) for Kubernetes Ingresses and Services
Repository for the next iteration of composite service (e.g. Ingress) and load balancing APIs.
Kubernetes Cluster Proportional Autoscaler Container
This repo addresses further work involving Kubernetes network security beyond the initial NetworkPolicy resource
Repository for a compliance specification of ingress-controllers.