There are millions of Active Directory (AD) dependent applications running out there. AD has been around for 20+ years and is still the foundation authentication of many enterprises. For many organizations, relying on AD is a blocker to modernize applications on Kubernetes. In this session we will cover how the Kubernetes community solved this. We will walk through the architecture of Kubernetes changes for AD integration, what are the requirements for it to work, and showcase a sample scenario and application working end-to-end. Finally, we will provide tips-and-tricks on what to avoid based on real life stories.