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

Tampering

Tampering is the act of changing something in a malicious way. In relation to information security, the goal of tampering is usually to cause one of the following:

  • Denial of service: Tampering with the resource to make it unusable
  • Elevation of privilege: Tampering with a resource to gain additional privileges

Tampering can be hard to avoid, so a common countermeasure is to make it obvious when something has been tampered with. A common example, outside of information security, is drug packaging. Most over-the-counter drugs are packaged with tamper-proof seals. These make it obvious to the consumer if the product has been tampered with because the tamper-proof seal has been broken.

Let's first look at some of the cluster components that can be tampered with.

Tampering with Kubernetes Components

All of the following Kubernetes components, if tampered with, can cause harm:

  • etcd
  • Configuration files for the API server, controller manager...