(This post first appeared on nirmata.com) Policy is commonly thought of as being primarily (if not solely) useful in the area of security, blocking the "bad" while allowing the "good". This misconception is understandable because many tools which operate by implementing "policy" are often limited to these tasks and …

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(Last Updated August 2022) The subject of vulnerabilities in container images is a serious business. As an image author yourself, one of the things you should be doing is ensuring you know what those vulnerabilities are and that you aren't relying on what a scan told you three months ago to make decisions about running …

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Pod Security Admission is a new-ish feature in Kubernetes which provides out-of-the-box controls for the Pod Security Standards. I touch on its behavior a bit, but as it has been covered already elsewhere, in this article I really wanted to collect the pros and cons and then frame it in context of an admission …

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Unless you've been living under a rock, you're probably aware that Sigstore has been making waves in the software supply chain space—and that's a great thing because we definitely need more in this area. With their Cosign tool, it allows for ensuring many of these practices are implemented such as image signing. …

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I've been hearing a couple things in the community that I wanted to take a few lines to dispel. The first is that Kyverno is fine for Kubernetes "out-of-the-box" resources like Pods and Deployments but is somehow either not capable or severely disadvantaged when it comes to working with CustomResources (CRs) defined in …

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(Last Updated November 2023) Although Pod Security Policies (PSPs) are a distant memory for few having been removed in Kubernetes 1.25, many are still tied to versions where they are in use with no clear plan for how they will migrate. An alternative solution in the form of Pod Security Admission (PSA) has been …

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With all software there is an inflection point where its domain ends and yours beings. Software such as Kubernetes provides an awesome cloud-native platform which gives you common tools to solve common problems, but like all it has its limits. When your needs extend outside those limits, it's time to start hunting for …

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Welcome back to my Exploring Kyverno series. In part three, I'm going to cover Kyverno's generate functionality: the ability to create new and update existing resources based upon the creation of a triggering resource. If you're new to Kyverno and not sure what it is, I highly recommend starting with the introduction. …

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Alright, here we go with another installment of the "Exploring Kyverno" series. Today I'm going to be looking at Kyverno's mutation ability, which is pretty cool in that it's one of the only admission controllers that has this capability. But if you haven't already, at least take the time to read the introduction so …

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Welcome to the first part of my "Exploring Kyverno" blog series. If you haven't read the introduction, I encourage you to do so first. This series is a multi-part exploration of the open-source, Kubernetes-native policy engine called Kyverno. In this article, I'll be covering the first major capability offered by …

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