In this session I will talk about Immutable Deployments - which have become almost essential in the world of Microservices. As the frequency of deployments across multiple services increases with increasing granularity, it is critical to have repeatable, predictable and immutable deployments serving our customers. In practice, this is achieved via several DevOps tools. We will use Hashicorp Packer (packer.io) and Jenkins to build a simple, immutable AWS deployment of a hello-world microservice. Familiarity with AWS is recommended but not required for this talk.