Official Ubuntu editions include the Ubuntu desktop, server and cloud and are fully supported by Canonical.
Ubuntu Server Edition
Ubuntu Server Edition was created with the aim of making Ubuntu easy to install and use on servers. The Server Edition was officially launched with Ubuntu 5.04 and initially focused on making certain that the highest quality server applications were available for easy installation and configuration, including MySQL, Apache, and others.
The most recent work has involved improvements to the cloud computing capabilities of Ubuntu Server.
Ubuntu Cloud (Figure 9-8) aims at providing you with all the tools and services needed to build your own cloud infrastructure with Ubuntu. Whether at an enterprise or individual level, Ubuntu Cloud allows you to manage cloud workloads on your own servers and send identical workloads to the public cloud when you need extra capacity.
Figure 9-8. Ubuntu Cloud
Ubuntu Cloud is more than just infrastructure. Systems administrators, dev-ops engineers, and users can use Juju—DevOps DistilledTM—charms to deploy, orchestrate, and scale services in the public, private, or hybrid cloud.
To learn more about Ubuntu Server Edition, we recommend The Official Ubuntu Server Book, Third Edition, also available from Prentice Hall.