- Read more about CoreDNS's entry in the CNCF: https://coredns.io/2018/03/12/coredns-1.1.0-release/.
- More details on the current crop of Kubernetes network provider scan be found at https://kubernetes.io/docs/concepts/cluster-administration/networking/#how-to-achieve-this.
- You can compare nginx's implementation of an ingress controller (https://github.com/nginxinc/kubernetes-ingress) and the Kubernetes community approach (https://github.com/kubernetes/ingress-nginx) and their differences (https://github.com/nginxinc/kubernetes-ingress/blob/master/docs/nginx-ingress-controllers.md).
- You can read up about Google Compute Engine's layer 7 load balancer, GLBC at https://github.com/kubernetes/ingress-gce/.