October 2021
Intermediate to advanced
192 pages
5h 59m
English
Content preview from Kubernetes Security and Observability
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Chapter 2. Infrastructure Security
Many Kubernetes configurations are insecure by default. In this chapter we will explore how to secure Kubernetes at the infrastructure level. It can be made more secure through the combination of host hardening to make the servers or VMs Kubernetes is hosted on more secure, cluster hardening to secure the Kubernetes control plane components, and network security to integrate the cluster with the surrounding infrastructure. Please note that the concepts discussed in this chapter apply to self-hosted Kubernetes clusters as well as managed Kubernetes clusters.
- Host hardening
- This covers the choice of operating system, avoiding running nonessential processes on the hosts, and host-based firewalling.
- Cluster hardening
- This covers a range of configuration and policy settings needed to harden the control plane, including configuring TLS certificates, locking down the Kubernetes datastore, encrypting secrets at rest, credential rotation, and user authentication and access control.
- Network security
- This covers securely integrating the cluster with the surrounding infrastructure, and in particular which network interactions between the cluster and the surrounding infrastructure are allowed, for control plane, host, and workload traffic.
Let’s look at the details for each of these aspects and explore what is needed to build a secure infrastructure for your Kubernetes cluster.
Host Hardening
A secure host is an important building block for a secure Kubernetes ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.