In today's cloud native world, where we automate as much as possible, everything is code. With this practical guide, you'll learn how Policy as Code (PaC) provides the means to manage the policies, related data, and responses to events that occur within the systems we maintain—Kubernetes, cloud security, software supply chain security, infrastructure as code, and microservices authorization, among others. Author Jimmy Ray provides a practical approach to integrating PaC solutions into your systems, with plenty of real-world examples and important hands-on guidance. DevOps and DevSecOps engineers, Kubernetes developers, and cloud engineers will understand how to choose and then implement the most appropriate solutions. I started writing the controls using what I thought was the best tool in my toolbox, Java; I was a Java subject matter expert (SME), and the cloud service provider (CSP) offered a mature Java software development kit (SDK). The first and, as it turns out, last control I wrote in Java enforced encryption of data at rest on object storage. This book is for DevOps practitioners, Kubernetes cluster operators, security engineers, and anyone charged with ensuring secure operations in cloud native and everything-as-code environments. In this book, I introduce PaC concepts and use cases, and expose you to patterns and solutions to help you successfully use PaC for your security, compliance, and governance needs. I think this book can serve as a reference for those of you needing to understand PaC and choose the right solution for your use cases. You can also use this book to discover techniques and patterns that you can apply immediately. I think some of you will reread this book to gain a deeper understanding of the different aspects of PaC.