Every thing went well. We did create new docker images from scratch, with new clean Dockerfile’s. The build went green, was deployed to production started and was running. That was smooth. Puh, time to relax, take a coffee. Half way to the kitchen, boom. All hell breaks loose. …

It did work yesterday! I did start my dev env with a simple docker compose up (yeah, that’s a new style, instead of docker-compose up) and I can’t access a host behind the VPN. I can access the resource from my host mac, but not from within the container. Hmm…

… or fixing one error to get caught by another. Last Friday everything was fine. We did find the cache bug. So, now it’s Monday. Nothing bad should happen. One last check of the pipeline and that should be it, should it? Oh, just a minor issue. The jobs run…

At the moment we use gitlab ci in order to build our application. Today it was time again to find some bugs in the build pipeline. We did try these and that to fix the pipeline. It’s always fun to debug errors in your CI when you can only reproduce…

There was always something bothering me with “Don’t repeat yourself” (DRY), how it was lived, but I was not able to put my finger on it. Mostly it jumped on me during reading through tests of code I was not familiar with. I did have to jump forth and back…

Ok, git extras is not a single command. git extras is a collection of multiple handy commands. Mostly shorthands for known git commands. On Mac you can install these additional commands via brew: > brew install git-extras My favority short hands You can get a short summary about a repository with git summary …

Did you ever have to find a bug, best in unkown code, that you can reproduce (so no blinking test, there you are still on your own) but can’t figure out where/why it happens? In such cases you can start your debugger and step trough your code, or you can…

Today I did want to draw a 3D wireframe, best with ruby. During my search I did find matplotlib. The downside, it’s a python lib. But we are lucky the gem metplotlib.rb enables you to use directly the python matplotlib. It’s build on top of the PyCall gem. …

The last days I did dive a little bit into line breakings. Here I summarize what I did learn so far. A paragraph with greety line breaks At a first glance, it sounds simple. You have a long line of words, call it a paragraph or word list, and a maximum amount of characters fitting into…