[m_mueller]

Well.. in Docker's case they are? It's based on lxc, a Linux kernel technology. Of course BSD had it before that, although with a different name.

[vezzy-fnord]

Docker hasn't been based on LXC since 0.9 by now. It uses its own libcontainer.

[m_mueller]

Which to my knowledge ist still linux-only, so while it's good to be technically correct, it doesn't change my point.

[vezzy-fnord]

That much is correct, it's still tied to namespaces, cgroups and the standard mechanisms for implementing jailing on Linux. The point is it stands at a layer of abstraction designed for easier portability than outright depending on LXC.