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Xavier Geerinck

Creating a simple "Hello World" docker application with Express and NodeJS

Creating a simple "Hello World" docker application with Express and NodeJS

For a lot of infrastructure related blog posts I would like to utilize a very basic application that spins up a web server and allows us to access it. Once we access it we simple see a welcome message but with a delay that we can configure! Note: Why a

Monitoring the Kubernetes Nginx Ingress Controller with Prometheus and Grafana

Monitoring the Kubernetes Nginx Ingress Controller with Prometheus and Grafana

In a previous article I explained how we can set-up an Nginx Kubernetes Ingress Controller, but how can we now monitor this? This is what I would like to tackle in this article, on how we are able to utilize Prometheus and Grafana to start visualizing what is happening on

Creating a Kubernetes Nginx Ingress Controller and create a rule to a sample application

Creating a Kubernetes Nginx Ingress Controller and create a rule to a sample application

Whenever you are creating an application that you want to expose to the outside world, it's always smart to control the flow towards the application behind it. That's why Kubernetes has something called Kubernetes Ingress. But what is it? Kubernetes Ingress Kubernetes Ingress allows you to

How to integrate Dapr and Apache Kafka through Bindings (input and output)

How to integrate Dapr and Apache Kafka through Bindings (input and output)

For a new project I am working on, I want to utilize Dapr to integrate Kafka such that a REST endpoint is automatically called in my application. Of course, we want our development environment to be as easy as possible and set-up in just a few minutes. Which is why

Debugging Common Dapr Issues

Debugging Common Dapr Issues

As a new sort of writing, I wanted to create a "debugging" blog post where I list "my rookie" mistakes that I made while working with Dapr. I hope that by sharing I can help others to more quickly resolve their own issues 😊 Issues Error: app

Setting up Stable Baselines with Python 3.7 and WSL 2

Setting up Stable Baselines with Python 3.7 and WSL 2

I've been playing around a bit with Stable Baselines lately for an upcoming project. However while playing, I encountered some issues seeing that Stable Baselines currently requires Tensorflow <= 1.14 which is only supported through Python < 3.8. Due those difficulties, I thought it would be

Autonomously Landing a Lunar Lander with an Xbox Controller Robotic Arm - Part 2

Autonomously Landing a Lunar Lander with an Xbox Controller Robotic Arm - Part 2

In Part 1 I explained you how you can create a Robot Arm that can be mounted on an Xbox controller. In OpenAI Lunar Lander I then continued to see how we are able to train a lunar lander environment to land a lunar lander all by itself with a