Tutorial

If you like me like to create virtual environments for everything, then you'll already sold on the idea of virtualenvs. The good news is that since Python 3.3 there's a new module part of standard python: venv.

How are we to write better quality texts, faster? The spectrum of assistant programs that aid us in writing texts has increased dramatically. From Word itself that has an outstanding grammar checker bundled in, to grammarly, or more into the command line tools diction and vim, the choices seem endless. Since my focus is using the same writing tool for everything, I settled on Vim, and I use only 2 settings.

One of the most common interactions in browsers is writing keys. Germanium has a trivially simple API to type keys, that includes shortcut handling, and special keys such as . Here's how:

Ok, we have now a new function with our own code in vim. We can manually trigger it when opening a buffer. Let's make this function automatically be called whenever opening a file, and fiddle with file types.

I love vim. And one of the reasons that makes it so appealing is customization. One of the coolest things is the ability to create functions. You bind the functions to commands, and you simply call the commands for the execution.

If you're using handlebars in python, you're probably using pybars3. In handlebars most commands are defined by the language, such as {{if}} or {{each}}. What you need to know is that you can also write your own helper functions to extend the language. Here's how to implement a switch clause:

If you execute the default bare metal installation of an Nginx Ingress server you'll find out that it's actually not listening on the "normal" 80/443 ports, but rather on some client ports. What's worse is that there's a rather small limit for the proxying, so if you're exporting a binary registry, and you want to publish binaries from outside the cluster, you're in trouble. Here's how to fix this.

Let's assume you're spinning up pure docker containers in your Kubernetes cluster. Not pods, but docker containers. For example you're using docker.inside in your Jenkins builds, and your Kubernetes is hosting the Jenkins instance. You'll notice that your docker container can't access services in your cluster.

Python has bundled into it a rather decent testing framework, that resembles a lot JUnit, named unittest. This is packaged in the core python, and it's simple to use. While I'm a big fan of Behave, sometimes, especially if testing low-level APIs, it's less verbose to just write a core python unit test. In this article we explore how to create our first test.

Testing a website for accessibility might prove challenging. Fortunately with the advent of some opensource tools, it's easier to test for problems, but automating this is a challenge. In this article we'll explore how to setup a Jenkins pipeline that runs pa11y - a popular opensource accessibility checker - inside a docker container.