Cilium Up and Running is finally available and ready for download. As the latest book in O’Reilly’s “Up and Running” series, this 375-page guide is the best reference on Cilium and a must-have for anyone interested in Kubernetes and networking. This book was an effort that took us well over a year to complete. It represents countless hours of writing, testing, refining, and drawing on real world experience working with Cilium users. What’s in the book? While the book is for anyone with an interest in Kubernetes and networking, we had two personas particularly in mind while writing it: the platform/DevOps engineer building and operating clusters day to day, and the network engineer who is still getting to grips with the world of Kubernetes and its many layers of abstraction. Our hope is that this book helps both sides better understand each other’s challenges and encourages stronger collaboration. Inside the book, you will: Learn about Kubernetes networking and the role of Cilium Dive into the various use cases Cilium addresses Understand Cilium’s architecture and how it moves packets Secure workloads through network policies Connect multiple clusters for service load balancing and discovery Observe application networking performance for troubleshooting and forensics Leverage Cilium’s built-in service mesh and networking capabilities for advanced traffic engineering How to get the book You can order a physical copy from Amazon or any other shop selling books, or grab a signed one during the upcoming KubeCon in Amsterdam. But we also have a treat for you: you can download a free digital copy of the book. Simply click the link below, enter your details, and start reading. The book covers all angles: use cases, configuration, and gotchas learned from working with real Cilium users. Each chapter includes tutorials to give you a practical understanding of every capability. You are welcome to run these tutorials on your own machine, but we have also built a dedicated companion lab alongside the book. Our Isovalent labs have helped hundreds of thousands of engineers build their cloud native networking and security skills, and it felt natural to create a dedicated playground for book readers, where you can run the same commands you see in the book. Finally, a book like this does not happen in isolation. Thanks! There are many people to credit for bringing it to life, from our technical reviewers, to the team at Isovalent, to the O’Reilly editors and production staff who guided us through the process. You will find the full list of acknowledgements at the start of the book. It truly takes a village to write something like this. Most importantly, we want to thank the 1,000+ engineers in the Cilium community who have built, reviewed, challenged, improved, and continue to evolve the project every day. This book exists because of the work you have put into making Cilium what it is today. We genuinely can’t wait to hear what you think. Enjoy the book!