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

Conducting forensics with Sysdig Inspect and CRIU

Forensics in cybersecurity means collecting, processing, and analyzing information in support of vulnerability mitigation and/or fraud, counterintelligence, or law enforcement investigations. The more data you can preserve and the faster the analysis you can conduct on the collected data, the quicker you will trace down an attack and respond to the incident better. In this section, we will show you how to use the CRIU and Sysdig open source tools to collect data, and then introduce Sysdig Inspect, an open source tool for analyzing data collected by Sysdig.

Using CRIU to collect data

CRIU is the abbreviation of Checkpoint and Restore In Userspace. It is a tool that can freeze a running container and capture the container's state on disk. Later on, the container's and application's data saved on the disk can be restored to the state it was at the time of the freeze. It is useful for container snapshots, migration...