Open Sourcerers
This guide will show you how to run the newly GA’ed bits of MicroShift on a Raspberry Pi 4 using Fedora IoT 38 or 39. It can announce routes via mDNS so hosting applications in an mDNS aware LAN is a breeze. THIS IS COMPLETELY UNSUPPORTED. DON’T EVEN THINK OF RED HAT SUPPORT WHEN YOU […]
This blog elaborates on how to configure Podman Desktop to be used together with MicroShift in a RHEL virtual machine (VM). Please note that the presented setup is not supported by Red Hat. 1. Introduction and use case One of the challenges in software development is a difference between development environment and target production. In […]
ˈpætɚns Image source https://vecteezy.com/ Recap In the first article, we discussed the need for patterns as an architectural paradigm, in order to achieve re-usability across complex environments such as Hybrid Cloud scenarios. We identified the benefits of a pattern based approach. We talked about automation, Hybrid Cloud, and about organizational aspects We’ve learned that patterns […]
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.
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.