I did some tests with a DHCP green, but it didn’t work properly. Unfortunately I didn’t access to the vps console, I saw only that nethserver had problems when the ip changed. I tried to add a script to compare ip in the db and ip obtained via dhcp, and correct the db if needed, but I lost access.
I agree that dhcp on vps is a scenario we need to support perfectly.
Since dhcp is supported on red, we could find a way to build a red-only system. Or assign the green role to a “virtual card”.