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

Docker Basics

Until now, we have seen the different advantages that containerization provides as opposed to running applications on a VM. Docker is the most commonly used containerization technology by a wide margin. In this section, we will start with some Docker basics and perform some exercises to get you first-hand experience of working with Docker.

Note

Apart from Docker, there are other container managers such as containerd and podman. They behave differently in terms of features and user experiences, for example, containerd and podman are claimed to be more lightweight than Docker, and better fit than Kubernetes. However, they are all Open Container Initiatives (OCI) compliant to guarantee the container images are compatible.

Although Docker can be installed on any OS, you should be aware that, on Windows and macOS, it actually creates a Linux VM (or uses equivalent virtualization technology such as HyperKit in macOS) and embeds Docker into the VM. In this chapter,...