Want to get on board with the benefits of Docker, but your organization just isn't ready for such a large change yet? This course, Designing Immutable Infrastructure with Packer, shows you how to achieve many of the same benefits Docker provides using Packer's immutable infrastructure principles. You'll learn how to create reusable, source-controlled, fast-deploying images that allow you to scale your architecture with ease. Not only that, you'll learn to reuse code you've already written to create these images, saving you time and money! Finally, you'll cover the when and why of making the transition from Packer to Docker, and how Packer makes this transition simpler. By the end of this course, you'll be able to create immutable infrastructure in Packer, and you'll be more prepared for a potential transition to Docker.