Containers

Kubernetes feature image
Article

Why killing pods is not enough: Testing operator reconciliation with operator-chaos

Ugo Giordano

This article discusses operator-chaos, an open source chaos engineering framework for Kubernetes operators. It explains why traditional chaos tools miss operator failures, introduces the four injection modes provided by operator-chaos, and demonstrates its use against cert-manager on a live cluster. The article also highlights the importance of testing operator reconciliation logic beyond just pod restarts.

Red Hat AI
Article

Bring your own evaluation framework to EvalHub

William Caban Babilonia +2

Learn how to onboard a custom evaluation framework into EvalHub using one class, one method, and a container image. This guide covers the contract, data structures, and a complete minimal adapter.

Red Hat Enterprise Linux 9 feature_image
Article

Installing Red Hat Enterprise Linux 10 from a bootc image with bootc

Jiří Kortus

Learn how to deploy Red Hat Enterprise Linux using the bootc command, a deployment option that allows the operating system to be built, deployed, and updated like a container image. This immutable system provides enhanced consistency and reliable, atomic updates and rollbacks. Get started with a minimal kickstart file example.

Red Hat OpenShift feature image
Article

Debugging image mode with Red Hat OpenShift 4.20: A practical guide

Sergio Regidor de la Rosa

Learn practical troubleshooting steps for common debugging scenarios in OpenShift 4.20's image mode. Understand the three stages of the process, MachineOSConfig creation, MachineOSBuild creation and execution, and application of the new image to nodes. Discover what to watch for in each stage to keep your clusters running smoothly.

$ dotnet run
Article

Build .NET container images with Tekton

Tom Deseyn

Learn how to build and push .NET container images in Tekton pipelines without a Dockerfile. See how the dotnet-publish-image task simplifies your CI/CD workflow.