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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

Standard Kubernetes API Resources

Let's list all the resources and APIs that are available in the Kubernetes cluster. Recall that everything we have used is defined as an API resource, and an API is a gateway through which we communicate with the Kubernetes server to work with that resource.

Get a list of all the current Kubernetes resources by using the following command:

kubectl api-resources

You should see the following response:

Figure 19.2: Standard Kubernetes API resources

In the preceding screenshot, you can see that the resources defined in Kubernetes have an APIGroup property, which defines what internal API is responsible for managing this resource. The Kind column lists the name of the resources. As we have seen earlier in this topic, for standard Kubernetes objects such as Pods, the schema or definition of a Pod object is built into Kubernetes. When you define a Pod specification to run a Pod, this could be said to be analogous to...

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