I'm glad Docker is getting this level of attentions. I like that they have focused on making building and managing containers easy, and that this functionality stands alone. Compare this to, e.g. Red Hat's OpenShift, which implements a similar container system but bundles it as part of a larger PaaS platform.

https://www.openshift.com/wiki/architecture-overview

https://www.openshift.com/wiki/introduction-to-cartridge-bui...