Nigel Poulton & Pushkar Joglekar 
The Kubernetes Book [EPUB ebook] 
Navigate the world of Kubernetes with expertise

Containers transformed how we package and deploy applications, but they came with inherent challenges. Kubernetes is a platform for deploying and managing containerized applications at scale. It also abstracts underlying infrastructure, making it easier to deploy and manage applications across heterogenous clouds and on-premises environments.
The Kubernetes Book offers a beginner-friendly approach to mastering Kubernetes architecture and core concepts such as Pods, Deployments, Services, Stateful Sets, Ingress, & Config Maps. It also demystifies the Kubernetes API, teaches you how to secure Kubernetes, and brings you up to speed with important cloud-native concepts such as microservices, declarative configuration, desired state, & reconciliation.
The book also serves as a comprehensive guide for software developers, systems administrators, cloud engineers, and architects to help them master Kubernetes. It offers the most precise explanations and is full of practical examples to help develop applications on a laptop and then deploy them to real-world Kubernetes environments.
The Kubernetes Book is updated annually, meaning it’s always up to date with the latest and greatest in the Kubernetes and cloud-native ecosystems.