Review of 2022

OpenSourcerers 2022 is a wrap! It was packed with interesting articles covering a wide range of topics. There are 52 articles available covering high level topics down to the dirty technical details of using Red Hat’s products and other OpenSource technologies. Your Opensourcerers blog editors followed along of course! As we come from varying backgrounds […]

Using Quarkus to develop a multiplayer game – Chapter #2 – The server feeds the client

Quarkus is a fantastic Java runtime environment and framework. Read this article to learn how easy it is to use Quarkus to create the server part of a multi player game (with a JavaScript client, running in a browser). Learn how to easily integrate Apache Kafka, WebSockets, a database, Qute templating for reporting etc. This is part TWO of a multi part article series.

Configuring custom domains for applications – the operator-way!

On a rainy Thursday evening, I was looking at a lemon tree and the lengthy URL of an application that I deployed some time ago on my OpenShift cluster. And I was wondering how I can make it shorter and human readable. Creating an edge route with a custom certificate is rather simple [1]. However, […]

How often do you patch ?

Historically, there have been two schools of thought about patching: Patch as soon as a patch is available to eliminate security risks versus testing the patch extensively before it is applied to production systems ( aka “Never change a running system” ). One of the main reasons why you might feel the need to patch […]

Deliver: Publish your own Operator with Operator Lifecycle Manager and the OpenShift Operator Catalog (4/4)

In Part 4 of our blog series “You’ve written a Kubernetes-native Application? Here is how OpenShift helps you to run, develop, build and deliver it”, we will explain how to deploy our own operator for our sample app “Local News” to OpenShift. The focus of this article is not so much on the development of […]

Securing the integrity of Software Supply Chains

Overview How can we secure the integrity of our Software Supply Chains and have confidence that our software has not been tampered with and can be traced to its source? Which are the main parts of the software supply chain security? Before explaining how to secure the Software Supply Chain, we need first to understand […]

How to install OpenShift Data Foundation (ODF) 4.11 in a disconnected or air-gapped VMware cluster

Estimated reading time: 8 minutes Motivation Red Hat OpenShift Data Foundation (ODF), previously Red Hat OpenShift Container Storage, is a software-defined persistent storage solution for OpenShift Container Platform (OCP) workloads. In this article you’ll learn how to deploy OpenShift Data Foundation using local storage devices on a disconnected VMware cluster. An air-gapped or disconnected network […]

The OnPremise Datacenter is dead! Or isn’t it?

When I talk to colleagues, partners and customers in this age there are not a few who say that their company is going “all in” into the cloud. Faster, cheaper, more dynamic. It is just better. Migration to the cloud will take some time but they have started the process and it looks “good”. But […]

DevOps Metrics – What are they good for ?

Why do we need DevOps Metrics and what are they good for ?

Using Quarkus to develop a multiplayer game – Chapter #1 – Initial setup

Quarkus is a fantastic Java runtime environment and framework. Read this article to learn how easy it is to use Quarkus to create the server part of a multi player game (with a JavaScript client, running in a browser). Learn how to easily integrate Apache Kafka, WebSockets, a database, Qute templating for reporting etc. This is part ONE of a multi part article series.