What tools would you use to build physical infrastructure from scratch?

Curious for people that still have a need for physical infrastructure what software you'd be using for * dhcp/dns * provisioning (os and apps) * config management * virtualization * workstations (and management) * licensing * lots of other stuff There's so many options, just trying to see what has and hasn't worked for others. I know every network is different, but some services and infrastructure needs are universal.