Implement Node Groups (Feature #6795)
Ganeti introduced the concept of Node Groups in 2.3.x. The basic idea is grouping a group of nodes primarily to keep drbd traffic to a local rack. It can be used for other use cases but this is the primary goal they had. We don't currently use node groups at the lab but I can see how useful it might be. I'd imagine this would be an additional tab on the Nodes detail page. By default a new cluster will only have a single group called default.