Applying Validating Admission Policies using Kyverno CLI
Wednesday, October 04, 2023 in General
The Kyverno Command Line Interface (CLI) allows applying policies outside of Kubernetes clusters and can validate and test policy behavior prior to adding them to a cluster. The two commands used for testing are apply and test: The apply command is …
Kyverno Completes Fuzzing Security Audit
Wednesday, September 06, 2023 in General
Kyverno, a CNCF policy engine for Kubernetes, is happy to announce the completion of its fuzzing security audit. The audit was carried out by Ada Logics and is part of an initiative by the CNCF to bring fuzzing to the CNCF landscape; Fuzzing is an …
Verifying images in a private Amazon ECR with Kyverno and IAM Roles for Service Accounts (IRSA)
Friday, August 18, 2023 in General
When running workloads in Amazon Elastic Kubernetes Service (EKS), it is essential to ensure supply chain security by verifying container image signatures and other metadata. To achieve this, you can configure Kyverno, a CNCF policy engine designed …
Simplifying OpenShift MachineSet Management Using Kyverno
Friday, July 28, 2023 in General
(Guest post from Red Hat Distinguished Architect, Andrew Block) Managing infrastructure in a declarative fashion is one of the core principles that should be adopted when operating in any environment. In OpenShift, this paradigm for managing the …
Using Kyverno with Pod Security Admission
Monday, June 12, 2023 in General
Pod Security Admission (PSA) is the built-in successor to Kubernetes PodSecurityPolicy (PSP) and is enabled by default starting in v1.23, graduating to stable in v1.25, the same version where PSP was finally removed. PSA is different from PSP in many …
Let's Play Kyverno
Sunday, June 04, 2023 in General
Foreword “Kyverno is a policy engine designed specifically for Kubernetes." While this approach makes it very easy to use Kyverno in its intended environment, it is sometimes difficult to explain and present the capabilities when that …
PodSecurityPolicy migration with Kyverno
Wednesday, May 24, 2023 in General
As you’ve probably heard, PodSecurityPolicy (PSP) in Kubernetes is no more. After a deprecation beginning in v1.21, they were finally removed in v1.25. Many organizations out there are still relying on PSPs and, if you’re reading this …
New time related JMESPath filters in Kyverno!
Sunday, February 19, 2023 in General
The v1.9 release of Kyverno added several time related JMESPath filters. With this addition, users now can add time based rules in their Kyverno policies. This blog post aims to describe those new additions. What is “JMESPath”? JMESPath …
Kyverno and SLSA 3
Wednesday, February 01, 2023 in General
With the release of Kyverno 1.9, Kyverno has begun generating and attesting to the provenance of its release artifacts in the SLSA standard and provisionally meet Level 3. This blog post attempts to explain a bit about SLSA and Level 3 and how we …
Kyverno CVE-2022-47633 affecting image verification
Thursday, December 29, 2022 in General
Summary Kyverno versions 1.8.3 and 1.8.4 contained a regression (CVE-2022-47633) which allowed a malicious proxy to facilitate a man-in-the-middle (MiTM) attack allowing an unsigned image to run in a Kubernetes cluster even if there was a Kyverno …