Current environment is several Linux boxes in a couple of logically separated "datacenters" running virtual guests that are created and deleted on demand.
DNS and DHCP run in another box and should serve all the virtual servers.
What I want is to create and remove virtual instances on demand without touching DNS and DHCP server configurations, I've certain freedom to prepare the guests but I'd like to avoid consulting central servers on guest creation.
So, ideally I would like just to create a guest with a hostname "node5.dc1.mydomain.com" and start it, it'd get ip from "mydomain.com" dhcp and register at "mydomain.com" DNS. So that I can just create the instance and ssh into it.
I believe some combination of DHCP and DDNS could work, but I want to ensure that there aren't easier alternatives or confirm that DHCP and DDNS is the way to go.
Although i've read some bad stuff about Dynamic DNS..