You're reading from Learn Kubernetes Security Securely orchestrate, scale, and manage your microservices in Kubernetes deployments

Product type Paperback

Published in Jul 2020

Publisher Packt

ISBN-13 9781839216503

Length 330 pages

Edition 1st Edition

Languages

C++

Tools

Kubernetes

Concepts

Cloud Security

Authors (2):

Kaizhe Huang

Pranjal Jumde

View More author details

Table of Contents (19) Chapters

Preface

1. Section 1: Introduction to Kubernetes

2. Chapter 1: Kubernetes Architecture FREE CHAPTER

3. Chapter 2: Kubernetes Networking

4. Chapter 3: Threat Modeling

5. Chapter 4: Applying the Principle of Least Privilege in Kubernetes

6. Chapter 5: Configuring Kubernetes Security Boundaries

7. Section 2: Securing Kubernetes Deployments and Clusters

8. Chapter 6: Securing Cluster Components

9. Chapter 7: Authentication, Authorization, and Admission Control

10. Chapter 8: Securing Kubernetes Pods

11. Chapter 9: Image Scanning in DevOps Pipelines

12. Chapter 10: Real-Time Monitoring and Resource Management of a Kubernetes Cluster

13. Chapter 11: Defense in Depth

14. Section 3: Learning from Mistakes and Pitfalls

15. Chapter 12: Analyzing and Detecting Crypto-Mining Attacks

16. Chapter 13: Learning from Kubernetes CVEs

17. Assessments

18. Other Books You May Enjoy

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Least privilege of Kubernetes subjects

Kubernetes service accounts, users, and groups communicate with kube-apiserver to manage Kubernetes objects. With RBAC enabled, different users or service accounts may have different privileges to operate Kubernetes objects. For example, users in the system:master group have the cluster-admin role granted, meaning they can manage the entire Kubernetes cluster, while users in the system:kube-proxy group can only access the resources required by the kube-proxy component. First, let's briefly talk about what RBAC is.

Introduction to RBAC

As discussed earlier, RBAC is a model of regulating access to resources based on roles granted to users or groups. From version 1.6 onward, RBAC is enabled by default in Kubernetes. Before version 1.6, RBAC could be enabled by running the Application Programming Interface (API) server with the --authorization-mode=RBAC flag. RBAC eases the dynamic configuration of permission policies using the API server...