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

Defending against attacks

In the previous section, we talk about a few ways of detecting crypto-mining activities. In this section, we will talk about defending against attacks in general by securing Kubernetes clusters. So, this involves more than just defending against a particular attack, but defending against all kinds of attacks. The four major defense areas are Kubernetes cluster provisioning, build, deployment, and runtime. First, let's talk about securing Kubernetes cluster provisioning.

Securing Kubernetes cluster provisioning

There are multiple ways to provision Kubernetes clusters such as kops and kubeadm. No matter which tool you use to provision a cluster, each Kubernetes component needs to be configured securely. Use kube-bench to benchmark your Kubernetes cluster and improve the security configurations. Make sure that RBAC is enabled, the --anonymous-auth flag is disabled, network connections are encrypted, and so on. The following are the key areas we covered...