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The Kubernetes Workshop

The Kubernetes Workshop

By : Zachary Arnold , Sahil Dua , Wei Huang , Faisal Masood, Mélony Qin, Mohammed Abu Taleb
4.9 (9)
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The Kubernetes Workshop

The Kubernetes Workshop

4.9 (9)
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)
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Preface

Introduction

In the past few chapters, we learned about Pods and Deployments, which help us run containerized applications. Now that we are equipped to deploy our applications, in this chapter, we will take a look at some API objects that help us with the networking setup to ensure that our users can reach our application and that the different components of our application, as well as different applications, can work together.

As we have seen in the previous chapters, each Kubernetes Pod gets its IP address. However, setting up networking and connecting everything is not as simple as coding in Pod IP addresses. We can't rely on a single Pod to run our applications reliably. Due to this, we use a Deployment to ensure that, at any given moment, we will have a fixed number of specific kinds of Pods running in the cluster. However, this means that during the runtime of our application, we can tolerate the failure of a certain number of Pods as new pods are automatically created...

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