Dynatrace & Red Hat – Unveiling the Automated Remediation Revolution

This blog elaborates on how to discover issues before they occur and have a quicker root cause detection.
React on exception right away in an automated fashion. And with that reduce operational costs and enable faster delivery and MTRS time.

The RHEL root trust store and why it matters for security

Photo by Robynne Hu on Unsplash In the perilous realm of digital security, trust is fragile. Transport Layer Security (TLS) web server authentication relies on trust anchors, but a flaw in the design puts web entities at risk of malicious impersonation. This article explores the origin of certificates in the RHEL root trust store and […]

What you always wanted to know about your etcd usage

In most Kubernetes installations, a well-maintained etcd is one of the key conditions for having a peaceful administrator life. Most Kubernetes distributions imply limitations on etcd and its size. For Openshift there’s a quota limit of 8GB. Typically that limitation should not hit you unless you run really large clusters and or utilize the cluster […]

Compliance is NOT Security

The Problem with Security and Compliance Mixture When talking to customers or colleagues, I often see two distinct topics being conflated: Compliance and (IT-) Security. Some customers have requirements they say MUST be fulfilled. When asked what their goal with this requirement is, they cannot elaborate the intention. They often fall back into saying that […]

Forensic container checkpointing in OpenShift

Photo by Daniel van den Berg on Unsplash On a warm summer day, I visited the Kubernetes Community Days Munich and enjoyed Adrian Reber’s talk about “Forensic container checkpointing and analysis”. Now I want to try that with OpenShift 4.13! This blog post will mainly cover how to enable and use checkpointing on OpenShift 4.13. […]

Automatically update containers with podman-auto-update

Photo by Timelab on Unsplash In this tutorial I will show you how to configure automatic updates for containers in rootless Podman environments and how systemd manages these containers as services. The tutorial is divided into the following sections: If you are not interested in the possible use cases and would rather start right away, […]

Deep dive into a scalable enterprise integration platform with MuleSoft and OpenShift

This article shows how MuleSoft’s Runtime Fabric (RTF) deployed to Red Hat OpenShift delivers a modern containerized API solution.

Quick start guide to the smallest OpenShift cluster for Windows workload

Introduction As a Solution Architect for Red Hat’s ecosystem, I talk to many independent software vendors (ISVs) about modernizing their applications to enable hybrid cloud and edge strategies. Linux, containers, Kubernetes and micro-services architecture are a default choice nowadays in many new application development projects. But sometimes you can not get rid of some dependencies […]

Patterns – A Path Towards Hybrid Cloud

ˈpætɚns Probably almost every time we are starting to understand and to solve a general problem, we will ask ourselves, am I the first one who is facing that problem, or have there been others who in the end either failed or succeeded. This is particularly true, if I am highly uncertain whether my own […]

Cold Disaster Recovery for Kubernetes applications

Introduction Since my last exploration of the topic in mid-2021, there have been significant advancements in cold disaster recovery for applications on Kubernetes. Since then, there have been remarkable improvements in both the technical aspects and the user experience of cold disaster recovery. Notably, the Kubernetes operator that manages the technical infrastructure for cold disaster […]

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