Open Sourcerers
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 […]
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 […]
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 […]
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. […]
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, […]
This article shows how MuleSoft’s Runtime Fabric (RTF) deployed to Red Hat OpenShift delivers a modern containerized API solution.
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 […]
By Robert Baumgartner, Red Hat Austria, August 2023 Tested with OpenShift 4.13, AMQ Streams 2.4, Camel K 1.10, and OpenShift Serverless 1.29 Camel K helps us integrate systems in an easy, simple, and cost-effective way. Do more with less. Do more with less. That’s the goal for everyone right now. But every company also has […]
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 […]
The latest book by the Czech-Canadian scientist and policy analyst Vaclav Smil, Invention and Innovation: A Brief History of Hype and Failure (The MIT Press, 2023) inspired me to write this blog entry, partly as a review, but also as an opportunity to share some reflections about its implications for the domain of open source […]