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Learn Kubernetes Security

Learn Kubernetes Security

By : Kaizhe Huang, Pranjal Jumde
5 (10)
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Learn Kubernetes Security

Learn Kubernetes Security

5 (10)
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)
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1
Section 1: Introduction to Kubernetes
7
Section 2: Securing Kubernetes Deployments and Clusters
14
Section 3: Learning from Mistakes and Pitfalls

Summary

In this chapter, we covered how to harden a container image with CIS Docker benchmarks, and then we gave a detailed introduction to the security attributes of Kubernetes workloads. Next, we looked at the PodSecurityPolicy in detail and introduced the kube-psp-advisor open source tool, which facilitates the establishment of pod security policies.

Securing Kubernetes workloads is not a one-shot thing. Security controls need to be applied from the build, deployment, and runtime stages. It starts with hardening container images, and then configuring security attributes of Kubernetes workloads in a secure way. This happens at the build stage. It is also important to build adaptive pod security policies for different Kubernetes workloads. The goal is to restrict most of the workloads to run with limited privileges, while allowing only a few workloads to run with extra privileges, and without breaking workload availability. This happens at the runtime stage. kube-psp-advisor is...

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