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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

Pod Configuration

In order to be able to successfully configure a pod, we must first be able to read and understand a pod configuration file. Here is an example pod configuration file:

apiVersion: v1
kind: Pod
metadata:
  name: pod-name
spec:
  containers:
  - name: container1-name
    image: container1-image
  - name: container2-name
    image: container2-image

We can break down the configuration of a pod into four main components:

  • apiVersion: Version of the Kubernetes API we are going to use.
  • kind: The kind of Kubernetes object we are trying to create, which is a Pod in this case.
  • metadata: Metadata or information that uniquely identifies the object we're creating.
  • spec: Specification of our pod, such as container name, image name, volumes, and resource requests.

apiVersion, kind, and metadata apply to all types of Kubernetes objects and are required fields...

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