Or Docker could gracefully degrade to using chroot on OS X (providing a different type of isolation.) This is a plan. One of the things Docker needs to get bet

Or Docker could gracefully degrade to using chroot on OS X (providing a different type of isolation.) This is a plan. One of the things Docker needs to get better at expressing is that A Docker container != Linux Containers. It may currently Build/Provision/Execute inside of a Linux Container (provided by LXC) but that is an (albeit important) implementation detail.