Book Image

The Kubernetes Book

By : Nigel Poulton, Pushkar Joglekar
Book Image

The Kubernetes Book

By: Nigel Poulton, Pushkar Joglekar

Overview of this book

Kubernetes is the leading orchestrator of cloud-native apps. With knowledge of how to work with Kubernetes, you can easily deploy and manage applications on the cloud or in your on-premises data center. The book begins by introducing you to Kubernetes and showing you how to install it. You’ll learn how to use Kubernetes Services and bring stable and reliable networking to apps that are deployed on Kubernetes. You'll delve deep into the powerful storage subsystem of Kubernetes and learn how to leverage the variety of external storage backends in your applications. As the book progresses, it shows you how to use features such as DaemonSets, Helm, and RBAC to enhance your Kubernetes applications. You'll explore the six categories of identifying vulnerabilities and look at a few ways to prevent and mitigate them. You'll also look at ways to secure the software delivery pipeline by discussing some image-related best practices. The book ends by sharing with you some resources that’ll help take your Kubernetes knowledge to the next level. By the end of the book, you’ll have the confidence and skills to leverage all the features of Kubernetes to develop scalable applications.
Table of Contents (23 chapters)
Free Chapter
1
Chapter 1
3
Chapter 2
5
Chapter 3
7
Chapter 4
9
Chapter 5
11
Chapter 6
13
Chapter 7
15
Chapter 8
17
Chapter 9
19
Chapter 10
21
Chapter 11

CI/CD Pipeline

Containers are a revolutionary application packaging and runtime technology.

On the packaging front, we conveniently bundle application code and dependencies into an image. As well as code and dependencies, the image contains the commands required to run the application. This has allowed containers to hugely simplify the process of building, shipping, and running applications. It has also overcome the infamous "it worked on my laptop" issue.

However, containers also make running dangerous code easier than ever before.

With this in mind, let's look at some ways in which we can secure the flow of application code from a developer's laptop to production servers.

Image Repositories

We store images in registries, and registries are either public or private.

Note

Each registry is divided into one or more repositories, and we actually store images in repositories.

Public registries are on the internet and are the easiest way to download...