Open source software company Red Hat (NYSE:RHT) has been selected by British Airways to build the airline’s internal cloud.

British Airways said that its growth along with the need to support the production environment for its external website, BA.com, drove the need to to expand its IT infrastructure. Changing consumers ticket purchase patterns mean that British Airways now supports on average more than 450,000 visitors to BA.com per day.

British Airways has been a customer of Raleigh-based Red Hat for 10 years. The airline said it is now using Red Hat Enterprise Virtualization to create its own cloud so its developers can build their own virtual machines and build and control environments as they wish.

“As an operation that functions 365 days a year with a plane always in the sky, high availability is key for the safety of our operation and ultimately our customers,” Richard Dawson, a UNIX and Linux infrastructure consultant at British Airways said in a statement. “Red Hat Enterprise Virtualization now enables us to have a single-pane view as to what is going on in the whole environment which we didn’t have before.”