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 […]

Beyond Hype: How Open Source, Open Science and Open Data fuel innovation

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 […]

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 […]

Software Supply Chain Security

What is Software Supply Chain Security ? In this day and age most of us are looking for trust and security. This is also true for our IT infrastructure as challenges from the outside grow more and more dangerous to the continuation of undisturbed business. Attacks on the IT infrastructure of companies not only rise […]

Service Performance Monitoring (SPM) with Jaeger of your Own Service/Application

By Robert Baumgartner, Red Hat Austria, February 2023 (OpenShift 4.12) In this blog I will guide you on how to use service performance monitoring (SPM) with Jaeger. It should work with any application that is working with OpenTelemetry. This document is based on OpenShift 4.12. See Distributed tracing release notes. OpenShift distributed tracing platform Operator […]

The state of Gaming on Linux

The state of Gaming on Linux is great and way better than a couple of years ago. This is largely due to the power of Open Source. But why ? Let’s dig into this a bit. History In the past, there were just a few games available as native Linux binaries. The majority of games […]

Transforming a blogging platform into a real community initiative

Our blogging platform “Open Sourcerers” has grown to over 40 authors, all of whom share the same passion for open source technology. We believe that a community-based approach is essential, and everyone should have the opportunity to contribute to our platform. Until now, our focus has been solely on the content itself, but we have […]

The Operator Update Information Checker

By Robert Baumgartner, Red Hat Austria, March 2023 Summary Recently Red Hat has released a tool at the Customer Portal Labs that can give very detailed information about Operators and available updates, supported versions, and much more. The name of this tool is Red Hat OpenShift Container Platform Operator Update Information Checker Where to find […]

Using OSTree Native Containers as Node Base Images

Node Base Images are OCI container images that are used to deliver software updates and customizations to rpm-ostree based Linux systems running on bare metal and virtual machines, such as Fedora CoreOS, Fedora IoT, Fedora Silverblue, CentOS Stream CoreOS, RHEL CoreOS, and RHEL for Edge. Node Base Images are built with OSTree Native Containers. While application […]

Java to Pod

From Java code in your repo to a running Pod on Kubernetes. This article explains all the steps needed, including basic shortcuts.

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