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 9: Image Scanning in DevOps Pipelines

It is a good practice to find defects and vulnerabilities in the early stages of the development life cycle. Identifying issues and fixing them in the early stages helps improve the robustness and stability of an application. It also helps to reduce the attack surface in the production environment. Securing Kubernetes clusters has to cover the entire DevOps flow. Similar to hardening container images and restricting powerful security attributes in the workload manifest, image scanning can help improve the security posture on the development side. However, image scanning can definitely go beyond that.

In this chapter, first, we will introduce the concept of image scanning and vulnerabilities, then we'll talk about a popular open source image scanning tool called Anchore Engine and show you how you can use it to do image scanning. Last but not least, we will show you how image scanning can be integrated into CI/CD pipelines.