CoreOS: Linux for the cloud and the datacenter
If you manage a cloud or a datacenter, chances are you run CentOS, Red Hat Enterprise Linux (RHEL), SUSE Linux Enterprise Server (SLES), or Ubuntu. These are all great server Linux distributions, but none of them were designed to be deployed over hundreds or thousands of servers at once. Now there is such a distribution: CoreOS.
In development for over two years, CoreOS has been designed from the ground up to power datacenters and clouds. Curiously enough however, CoreOS is not based on one of the traditional server Linux families such as Debian or Red Hat. Instead, it's based on Google's desktop Chrome OS.