dotcloud/docker — pull request #2939 by jamtur01 (2013-11-28 15:34:42+00:00)
Title: Help identify you are in a Docker container

Change container value from:

container=lxc

to:

container=lxc-docker

This will provide a mechanism for tools like Facter
and Ohai to identify that they are running in a Docker
container.

See
http://www.freedesktop.org/wiki/Software/systemd/ContainerInterface/.

Thanks to Paul Nasrat for the pointer to this.