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):

Pranjal Jumde

Kaizhe Huang

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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Requesting a workflow in Kubernetes

In Kubernetes, the kube-apiserver processes all requests to modify the state of the cluster. The kube-apiserver first verifies the origin of the request. It can use one or more authentication modules, including client certificates, passwords, or tokens. The request passes serially from one module to the other. If the request is not rejected by all the modules, it is tagged as an anonymous request. The API server can be configured to allow anonymous requests.

Once the origin of the request is verified, it passes through the authorization modules to check whether the origin of the request is permitted to perform the action. The authorization modules allow the request if a policy permits the user to perform the action. Kubernetes supports multiple authorization modules, such as Attribute-Based Access Control (ABAC), Role-Based Access Control (RBAC), and webhooks. Similar to authentication modules, a cluster can use multiple authorizations:

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