I've seen quite a few conversations about different aspects of "networking" (how traffic flows into and out of the cluster, which certs are used where and what names/IPs they have, when firewall rules need to be updated, which node ports are safe, etc.) lately that make me think we would benefit from a design/architecture document to help the team understand how things work. I could imagine field teams, support staff, and other folks also benefiting from that sort of information.