[shykes]

Docker does use lxc under the hood. They serve very different purposes.

lxc is a tool for sysadmins to deploy and configure virtual servers on their machines.

docker is a tool for developers to package their application into a deployable object without worrying about how the sysadmin will deploy it, and for sysadmins to deploy applications without worrying about how they were packaged.

When you tinker long enough with lxc, eventually you start building something like docker on top of it, because it just makes sense. Now instead of reinventing the wheel you can just use docker.