Book Image

Learn Kubernetes Security

By : Kaizhe Huang, Pranjal Jumde
5 (1)
Book Image

Learn Kubernetes Security

5 (1)
By: Kaizhe Huang, Pranjal Jumde

Overview of this book

Kubernetes is an open source orchestration platform for managing containerized applications. Despite widespread adoption of the technology, DevOps engineers might be unaware of the pitfalls of containerized environments. With this comprehensive book, you'll learn how to use the different security integrations available on the Kubernetes platform to safeguard your deployments in a variety of scenarios. Learn Kubernetes Security starts by taking you through the Kubernetes architecture and the networking model. You'll then learn about the Kubernetes threat model and get to grips with securing clusters. Throughout the book, you'll cover various security aspects such as authentication, authorization, image scanning, and resource monitoring. As you advance, you'll learn about securing cluster components (the kube-apiserver, CoreDNS, and kubelet) and pods (hardening image, security context, and PodSecurityPolicy). With the help of hands-on examples, you'll also learn how to use open source tools such as Anchore, Prometheus, OPA, and Falco to protect your deployments. By the end of this Kubernetes book, you'll have gained a solid understanding of container security and be able to protect your clusters from cyberattacks and mitigate cybersecurity threats.
Table of Contents (19 chapters)
Section 1: Introduction to Kubernetes
Section 2: Securing Kubernetes Deployments and Clusters
Section 3: Learning from Mistakes and Pitfalls

Chapter 3: Threat Modeling

Kubernetes is a large ecosystem comprising multiple components such as kube-apiserver, etcd, kube-scheduler, kubelet, and more. In the first chapter, we highlighted the basic functionality of different Kubernetes components. In the default configuration, interactions between Kubernetes components result in threats that developers and cluster administrators should be aware of. Additionally, deploying applications in Kubernetes introduces new entities that the application interacts with, adding new threat actors and attack surfaces to the threat model of the application.

In this chapter, we will start with a brief introduction to threat modeling and discuss component interactions within the Kubernetes ecosystem. We will look at the threats in the default Kubernetes configuration. Finally, we will talk about how threat modeling an application in the Kubernetes ecosystem introduces additional threat actors and attack surfaces.

The goal of this chapter...