Advent of Code 2023 – Day 1

Using Keycloak we look into web authentication and how to setup a standard OpenID flow. Then we go one step further and look into using an Quarkus application and authentication through OpenID using Keycloak. Last but not least we configure a required role for one endpoint in our application via Keycloak to see that we…

We look at configuring and running training in the cloud.

In this video series, I try to challenge myself with the Advent of Code trials. Each solution will be published to Github, and I hope you will learn something from my coding mistakes and perhaps send some code my way on how you have done these challenges. I know by reading code, so this is…

We look into the latest version of Java 24. In this version, there are a lot of new experiments and great features that we will see in …

We implement a simple REST web server using pure java. Both with socket server and using the HTTP server implementation currently in Java.

After a critical failure, we look into resizing an OSD in our Ceph environment. Unfortunately, the drive is entire, so resize of the OSD was the only option to start the service.