Book Image

The Kubernetes Workshop

By : Zachary Arnold, Sahil Dua, Wei Huang, Faisal Masood, Mélony Qin, Mohammed Abu Taleb
5 (1)
Book Image

The Kubernetes Workshop

5 (1)
By: Zachary Arnold, Sahil Dua, Wei Huang, Faisal Masood, Mélony Qin, Mohammed Abu Taleb

Overview of this book

Thanks to its extensive support for managing hundreds of containers that run cloud-native applications, Kubernetes is the most popular open source container orchestration platform that makes cluster management easy. This workshop adopts a practical approach to get you acquainted with the Kubernetes environment and its applications. Starting with an introduction to the fundamentals of Kubernetes, you’ll install and set up your Kubernetes environment. You’ll understand how to write YAML files and deploy your first simple web application container using Pod. You’ll then assign human-friendly names to Pods, explore various Kubernetes entities and functions, and discover when to use them. As you work through the chapters, this Kubernetes book will show you how you can make full-scale use of Kubernetes by applying a variety of techniques for designing components and deploying clusters. You’ll also get to grips with security policies for limiting access to certain functions inside the cluster. Toward the end of the book, you’ll get a rundown of Kubernetes advanced features for building your own controller and upgrading to a Kubernetes cluster without downtime. By the end of this workshop, you’ll be able to manage containers and run cloud-based applications efficiently using Kubernetes.
Table of Contents (20 chapters)
Preface

3. kubectl – Kubernetes Command Center

Overview

In this chapter, we will demystify some common kubectl commands and see how we can use kubectl to control our Kubernetes cluster. We will begin this chapter by taking a brief look at what the end-to-end process looks like when using kubectl commands to communicate with a Kubernetes cluster. Then, we will set up a few shortcuts and autocompletion for the Bash terminal. We will begin with the basics of using kubectl by learning how to create, delete, and manage Kubernetes objects. We will learn about the two approaches to managing resources in Kubernetes - declarative and imperative - with exercises. By the end of this chapter, you will also have learned how to update a live application running on your Kubernetes cluster in real-time using kubectl.