Running a Docker registry on Kubernetes (in kind)

In the last weeks I have been working a lot on supporting Kubernetes in air-gapped environments, i.e. environments that don’t have any access to the internet. Many companies prefer to run their IT infrastructure in such a way to minimize the attack vector against it and be able to tightly control what’s running on their clusters. Part of these setups naturally is a Docker registry that runs on that air-gapped infrastructure and in order to properly reproduce such a scenario, I had to run a Docker registry on my kind cluster as well and I thought sharing the manifests may help anyone out there get setup faster next time....

Ansible delegation madness: delegate_to and variable substitution

This is going to be a short piece but I really want to share this because 1) I have to talk! It cost me several hours today to get a grip on this and 2) I couldn’t find any explanation of this Ansible behaviour on Stack Overflow or anywhere else (I actually posted this on SO to make sure it’s now there). By the way, I was reminded today that it can save you several hours of bug tracking, experimenting and general hair-tearing if you just know to ask....

O'Reilly Software Architecture Conference: My ping from London

I attended O’Reilly’s Software Architecture Conference in London this October and I thought I’d share my personal wrap-up of the most striking talks I’ve heard there. So buckle up for a tiny race through three days of talks and workshops: sarahjwells from Financial Times gave a great advice on how to fight code rot in your microservice architecture: Consider building overnight to fight code rot and keep services live and healthy....

Setting sails - I'm joining Hermes Germany in October

I’ve worked for Just Software as a Software Developer for seven years and seven months this month. It was one of the most intense periods of my life, not only personally but also as a developer, an employee, a colleague, a consultant and an Open Source enthusiast. The time at that awesome company has shaped me extremely and I’m leaving my team there with mixed feelings. We left the shores of our safe jobs to build the best team collaboration software in the world....

[Update] Are GitHubbers taking open source seriously?

Simon Phipps of Open Source fame at Sun and the Open Source Initiative wrote an interesting article titled GitHub needs to take open source seriously. He warns about the fact, that GitHub doesn’t have a mechanism that lets new projects choose a proper license for their work. Simon also cites a survey that says this: […] as many as half [of the projects] include no easily identifiable copyright licensing information....