Mastering Apache Openserverless: A Definitive Guide to Building Modern Serverless Platforms on Kubernetes

This book provides a complete, end-to-end guide to building, deploying, and operating Apache OpenServerless on modern Kubernetes environments. Working through this book, you will learn core architecture, CRDs, serverless action runtimes, multi-operator design (Spark, Ray), AI pipelines, eventing, observability, and production workflows. It offers a practical, code-driven approach to Apache OpenServerless and it is based on real deployments with MicroK8s, Multipass, and cloud-native automation.

It includes previously unpublished technical material from real-world operators (Spark, CouchDB, plugins, tasks, CLI ops). Beyond just external usage It shows the actual internal architecture, with explanations of CRD, operators, Kustomize, Kopf, and Jinja2. It contains complete operational chapters on MicroK8s and Multipass, and integrates FaaS and distributed computing (Spark/Ray): a unique combination in the serverless landscape.

Using this book, you will gain competence in an end-to-end development workflow, from function writing to deployment, debugging, scaling, and security as it is geared toward those who want to build a serverless platform, not just use it. You will also learn real-world errors, troubleshooting, and best practices, based on real-world cases (my .md files). The book walks you through a complete ecosystem of plugins, operators, task systems, and CLI ops.

By the end of this book, you will have gained a deep and extensive understanding of building, deploying, and operating Apache OpenServerless as well as its uses in actual applications through complete, reproducible, production-ready examples.

What You Will Learn

- How to install and operate OpenServerless

- Develop actions and runtimes

- Observe, debug, tune serverless workloads and build production-grade automation

- Understand how to work with Kubernetes operators and OpenServerless and AI