دانلود کتاب کوبرنتس(kubernetes) – راهنمای کامل برای ارکستراسیون کانتینر

Containers and Kubernetes together are changing the way that applications are architected, developed, and deployed. Containers ensure that software runs reliably no matter where it’s deployed, and Kubernetes lets you manage all of your containers from a single control plane. This book is designed to help you take full advantage of these essential new technologies, using hands-on examples not only to try out the major features but also to explore how each feature works. In this way, beyond simply being ready to deploy an application to Kubernetes, you’ll gain the skills to architect applications to be performant and reliable in a Kubernetes cluster, and to quickly diagnose problems when they arise. The biggest advantage of a Kubernetes cluster is that it hides the work of running containers across multiple hosts behind an abstraction layer. A Kubernetes cluster is a “black box” that runs what we tell it to run, with automatic scaling, failover, and upgrades to new versions of our application. Even though this abstraction makes it easier to deploy and manage applications, it also makes it difficult to understand what a cluster is doing. For this reason, this book presents each feature of container runtimes and Kubernetes clusters from a “debugging” perspective. Every good debugging session starts by treating the application as a black box and observing its behavior, but it doesn’t end there. Skilled problem solvers know how to open the black box, diving below the current abstraction layer to see how the program runs, how data is stored, and how traffic flows across the network. Skilled architects use this deep knowledge of a system to avoid performance and reliability issues. This book provides the detailed understanding of containers and Kubernetes that only comes from exploring not only what these technologies do but also how they work. In Part I, we’ll begin by running a container, but then we’ll dive into the container runtime to understand what a container is and how we can simulate a container using normal operating system commands. In Part II, we’ll install a Kubernetes cluster and deploy containers to it. We’ll also see how the cluster works, including how it interacts with the container runtime and how packets flow from container to container across the host network. The purpose is not to duplicate the reference documentation to show every option offered by every feature but to demonstrate how each feature is implemented so that all that documentation will make sense and be useful. A Kubernetes cluster is complicated, so this book includes extensive hands-on examples, with enough automation to allow you to explore each chapter independently. This automation, which is available at https://github.com/book-of-kubernetes/examples, is published under a permissive open source license, so you can explore, experiment, and use it in your own projects.