July 2024
Intermediate to advanced
556 pages
13h 27m
English
Content preview from Policy as Code
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Chapter 8. Kyverno and Kubernetes
Kyverno, Greek for govern, is a mature OSS—incubating CNCF—policy-engine project that is designed specifically for Kubernetes. With Kyverno, you can policy-enable your Kubernetes clusters and DevOps pipelines to control cluster behavior and validate policies before use. As we will see in this chapter, Kyverno integrates to Kubernetes via the same dynamic admission controllers, similar to previous Kubernetes solutions that we have already explored and that we will see in subsequent chapters.
The Kyverno project, created by Nirmata, enjoys a very active community of contributors and users. The following links will help you gain more information about Kyverno:
Unlike the Kubernetes PaC solutions that we have discussed so far, Kyverno is not underpinned by OPA or Rego. Kyverno policies are written using YAML. YAML syntax is used widely throughout Kubernetes, so Kyverno adoption does not require learning a new policy-language syntax. The learning curve for Kyverno includes the Kyverno YAML lexicon. As we will see later in this chapter, an additional JSON query language—JMESPath—can be used to apply fine-grained selection logic in Kyverno policies.
Let’s get started by installing Kyverno in minikube.
Installation
Kyverno can be installed using Helm or via kubectl and YAML resources. As a Kyverno user, I prefer the Helm install. The Helm chart ...
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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.