An all-in-one Dockerfile to quickly setup a dev/testing NGINX — While working with our code, we often need to quickly check if something works under HTTPS — or more importantly, how it behaves under HTTPS. There are plenty of guides online showing you how to create a Certificate Sign Request (CSR), how to self-sign that CSR, and how to manually…

What is humankind most interested at? Keep reading and you might be surprised. — It was a boring evening. As I was browsing through my list of Medium draft stories ready to be fleshed out, I was eagerly waiting for inspiration to strike. As usual, it didn’t. So, here we are. Not an inspiring piece but definitely one I had lots of fun researching…

Which Lord of the Rings character does your code show you are? — Who doesn’t love Peter Jackson’s epic film adaption of J.R.R. Tolkien’s The Lord of the Rings novel? And who doesn’t love endless and endless hours of writing code, debugging, and testing? Not you, obviously… you are a fierce code warrior, a master of keys, a programming encyclopaedia, a tech guru…

Using Alpine Linux, HAProxy, and keepalived — So, you have used your favourite Kubernetes distro and just finished setting up your cluster. It is now time to access it remotely with kubectl, but which of the API servers should you access? …

Get up and running quickly with Rancher’s Kubernetes-focused OS — k3OS: a Linux Distribution for Kubernetes k3OS is a stripped-down, streamlined, easy-to-maintain operating system for running Kubernetes nodes. It is actively developed and maintained by Rancher Labs (now part of SUSE) and, as its name implies, it runs the K3s Kubernetes distribution (also Rancher-owned). K3s is an official CNCF sandbox project that delivers a lightweight yet…

How to generate unique IDs in a distributed environment at scale — Generating unique identifiers is a task all programmers have had to deal with at some point in the course of an application’s development lifecycle. Unique IDs allow us to properly identify data objects, persist them, retrieve them, and have them participate in complex relational patterns. But how are these unique…

How to use Docker Content Trust for your containers — With Docker dominating the delivery workflow, it’s become imperative that your container images can be trusted. How can your users be sure that the image content they’re downloading is what you’ve created? How can you verifiably prove that you are, indeed, the creator of an image? In this article, we’ll…

These are the stories you loved reading in Mac O’Clock — March has been a challenging month for all of us, no matter where on this wonderful planet we live. The outbreak of COVID-19 changed our daily routine and found many of us bound at home. To quote the late Maya Angelou, “we may encounter many defeats but we must not…

How to introduce automatic security scans in your Java builds — While most of us take active measure when developing our projects to be protected against known security vulnerabilities, there is a series of passive actions and checks that are often overlooked. The Open Web Application Security Project (OWASP) is a nonprofit foundation that works to improve the security of software…