Yes I am crazy.
Old technology is always fun to play with, this one came out of the idea of building a retro computer lab. However building one requires too much space on my desk. So what if we put it inside the cloud? (well my baremetal "upcycle" cluster)
This will not work in traditional cloud environments unless you have nested virtualisation enabled. You will also need to have root access to modify the kernel for Virtualbox, this is still the best option for Windows NT imo.
This repository has my the Docker image i used inside image/, it installs VirtualBox as well as create a VM configuration.
The manifests/ directory has the Kubernetes manifests I used, note that the PV one I use uses local PVs.
You have to set up the Virtualbox kernel modules inside the nodes, on how to do so without installing Virtualbox I's like to refer to Jess Frazelle's dockerfiles
You will need 2 files inside your PV:
winnt.iso: a Windows NT ISO, I use the Terminal Server edition so I can RDP into the serverwinnt.vdi: an empty disk, note this is Windows NT 4 it can be maximum 2GB. Can be created usingVBoxManage createhd --filename winntx.vdi --size 2000 --format VDI
Inside manifests first deploy service.yaml and pv.yaml, then deployment.yaml.
You will now have 2 services winnt-host is a NodePort service for the Virtualbox RDP daemon. winnt forwards the RDP port to the VM itsef.