Current status sounds like Wild West. It's probably because you don't have any people who know about infrastructure on board, yet.
I'd challenge the idea of dedicated infrastructure per developer in the first place. There's little reason why this could not be done locally on a developer machine using Vagrant, local Kubernetes, Docker Compose, whatever.
I'd challenge the idea of dedicated infrastructure per developer in the first place. There's little reason why this could not be done locally on a developer machine using Vagrant, local Kubernetes, Docker Compose, whatever.