Docker, CoreOS, Google, Microsoft and Amazon are now working on a new standard for software containers with the help of the Linux Foundation. Other members of this coalition include Apcera, Cisco, EMC ...
CoreOS adds Docker support to its App Container system, offers to do the reverse for Docker -- which is unlikely to reciprocate CoreOS made waves when it announced a container format, App Container, ...
It may be an experimental feature, but it's worth checking out if you're a self-hosting enthusiast ...