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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

Chapter 10: Real-Time Monitoring and Resource Management of a Kubernetes Cluster

The availability of services is one of the critical components of the Confidentiality, Integrity and Availability (CIA) triad. There have been many instances of malicious attackers using different techniques to disrupt the availability of services for users. Some of these attacks on critical infrastructure such as the electricity grid and banks have resulted in significant losses to the economy. One of the most significant attacks was an attack on Amazon AWS Route 53 infrastructure that resulted in the disruption of core IT services all over the world. To avoid such issues, infrastructure engineers monitor resource usage and application health in real time to ensure the availability of services offered by an organization. Real-time monitoring is often plugged into an alert system that notifies the stakeholders when symptoms of service disruption are observed.

In this chapter, we will look at how you...

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