CERN, the European Laboratory for particle physics, supports over 10,000 scientists world wide in their quest to find out what the Universe is made of and how it works. As part of a multi-year project to modernise and streamline its tools and processes, CERN is using OpenStack and other leading open source tools to double the computing resources available for physicists to around 15,000 servers by 2015.

This talk will review the current state of OpenStack at CERN, the early experiences of deployment such as LDAP integration and configuring with Puppet along with the plans for production.