Docker is something that helps people set up and manage Linux servers. You don't need it. In fact much of what Docker claims to deliver is actually delivered b

Docker is something that helps people set up and manage Linux servers. You don't need it. In fact much of what Docker claims to deliver is actually delivered by some capabilities that have recently been incorporated into the Linux kernel under the title LXC (LinuX Containers). It is similar to Solaris Zones and to the non-kernel features of OpenVZ. Docker just makes LXC a bit easier to use, but you could actually do the same thing with just plain LXC. You would have to figure out some configuration format to use and write some bash scripts. And you would not have the benefit of the community including shared Dockerfiles and the work that Phusion has done on solving some LXC problems.