DUO-network-gateway on kubernetes

I have been looking at rolling out a new duo-network-gateway in a k8s.
There are some excellent resources with DUO docker images and docker-compose files at Duo Network Gateway | Duo Security.
And some excellent work done by tureus on getting these up and running in k8s.
GitHub - tureus/duo-kubernetes: Put Duo Access Gateway and Duo Network Gateway in your kube cluster

Is this deployment supported by DUO and how can I extend tureus’s work to provide HA?

We have also found that the docker images provided by DUO run things as root. Since we are security consuls we would prefer to run things as non-root, is this possible?