Netflix has moved its production services from being completely datacenter-based, to being primarily cloud-based in a little over a year. This talk will briefly explain why we did it and why we chose Amazon's AWS. The talk will then delve into the evolution of our build and deployment architecture, starting with how our orignal monolithic DC-based SQL-tied webapp was built and deployed, and then detailing the evolution of our continuous integration systems which helped prepare us for the cloud move. And finally, it will cover our current full build pipeline and deployment system which keeps us agile in the cloud now by providing quick turnaround, and rapid roll-out and recovery.