This document discusses the architecture of an open source Platform as a Service (PaaS) based on Go, Docker, and Kubernetes. It introduces OpenShift v2 and v3, which use containers, Docker, Kubernetes for orchestration, and RHEL/Atomic hosts. It provides overviews of key Kubernetes concepts like pods, services, controllers, labels, and nodes. The document suggests Docker, Kubernetes, and Go as the technologies underpinning the PaaS and invites questions from the audience.