Traefik container inter-communication

Introduction traefik is a convenient way to have a reverse proxy in your Docker setup. Docker containers hosting web applications or webservices can register in traefik and traefik does routing, load-balancing, ssl termination and HTTP/2 for you out of the box. This works smoothly but we had the following setup: We took a Atlassian confluence Wiki …

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REST API documentation with Swagger

Introduction When you create a REST API for a modern Web application, i.e. by using spring-boot, you need some kind of documentation. You have do document what a REST endpoint does, which input the endpoints expects, what is validated, and so on, and so on. Of course your documentation must be updated so it always …

Docker, applications and Traefik

Introduction A couple of weeks ago I started playing around with Docker. I set up a small server at home and I wanted to host several applications like a mailserver, nextcloud, an apache webserver hosting my panorama fotos, gitlab for my code and so on. It was not as complicated as I thought setting up …

Internet of Things (IOT) for a Java developer

Nowadays there is no possibility not to read about the new next thing: Internet of Thins (IOT). As a Java developer who mainly develops web applications and the backends IOT is not the daily business (at least in my case) but if you search hard enough you'll find a usecase. Usecase In my case the …

CloudFoundry Micro Cloud and Virtualbox

Clouds are very modern these days, so I decided to dive into the cloud, too. I descided to use CloudFoundry, because it is near to Spring and there are tools to use the cloud like a locally installed tomcat. But, how could it be different, it was not that easy to get the microcloud running. …