Book Image

Learn Kubernetes Security

By : Kaizhe Huang, Pranjal Jumde
5 (2)
Book Image

Learn Kubernetes Security

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

Chapter 4

  1. A Role object contains rules consisting of verbs and resources that indicate the operational privileges for resources in a namespace.
  2. A RoleBinding object links the Role object in a namespace to a group of subjects (for example, User and ServiceAccount). It is used to grant privileges defined in the Role objects to the subjects.
  3. RoleBinding indicates that the privileges the subjects have are effective in the RoleBinding object's namespace. ClusterRoleBinding indicates that the privileges the subjects have are effective in the entire cluster.
  4. hostPID, hostNetwork, and hostIPC.
  5. Create a network policy for the Pod with an egress rule.