Re:Run containers on bare metal already [video]
by olefoo on Sunday November 15, 2015 @01:30AM
(#10568719)
Having worked with both technologies... ( and a few others including Freebsd jails, xen vms and zones on Solaris)
Docker is a distinct improvement on a couple of levels.
Quicker to launch if your imageset is local. More tractable command set. Relatively bandwidth efficient.
Docker owes a lot of its success to the work the OpenVZ developers (and others) did.
https://en.wikipedia.org/wiki/OpenVZ