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


In this chapter, we first briefly talked about container images and vulnerabilities. Then we introduced an open source image scanning tool, Anchore Engine, and showed how to use anchore-cli to do image scanning. Last but not least, we talked about how to integrate image scanning into a CI/CD pipeline at three different stages: build, deployment, and runtime. Image scanning showed great value in securing the DevOps flow. A secure Kubernetes cluster requires securing the entire DevOps flow.

You should now feel comfortable deploying Anchore Engine and using anchore-cli to trigger image scanning. Once you find any vulnerabilities in an image, filter them out by using an Anchore Engine policy and understand their real impact. I know it's going to take time, but it is necessary and awesome to set up image scanning as gatekeepers in your CI/CD pipeline. By doing so, you'll make your Kubernetes cluster more secure.

In the next chapter, we will talk about resource management...