Sup! My name is Yura 👋

This should have happened to me someday, and it finally did. I got Kernel panic on my Fedora 43 workstation. Apparently, a software update went south, and the PC was turned off before it properly finished. The general advice would be to boot from a previous kernel and regenerate everything. Unfortunately, this wasn’t an option for me, because I couldn’t boot into older kernels as well. Luckily, it’s easy to overcome this whole situation with a LiveUSB stick and a couple of terminal commands....

You can also read this article on Substack. For many years now I spent the beginning of February in Belgium, first at FOSDEM in Brussels and later at CfgMgmt Camp in Ghent. Two years ago I shared some notes from the conferences, and I want to do so again. But first, let me tell you why I love each of these conferences. Frankly, I’ve heard many concerns about the two: rooms being too crowded, logistics too chaotic, and many topics too outdated....

This article is also available on Substack. This is a very basic example of using Helm Unittestas well as an example of the “test pyramid” discussed in the previous article. The code is available on GitHub. Structure We have two charts: fw-demo - a chart with our demo application monitoring - a library chart that applies some DataDog monitoring rules for the main chart. monitoring chart is a dependency. The main Chart....

This article is also available on Substack. Before answering this question, we should decide why to test Helm chart? and if you even need to bother with that. Following an example from this xkcd comic, the real answer is: it depends. So, I want to share with you my story of Helm chart testing. How and, more importantly, why it started, and how it played out in the end. On a side note, I did a talk on this topic at the DevOps FW Days conference....

How to Trigger a GitHub Actions Pipeline with a Comment UPD 2023-09-07: Clarified some caveats around checking out the code when triggering a pipeline with a comment. Look for the UPD 2023-09-07 text on this page. Building comment-based workflows is a pretty neat thing from the UX perspective. You can work on the code in your IDE, create a pull request, and then leverage PR comments to run some automation....

This is the first guest article in this blog. This is one is by Maksym Vlasov - my co-author of the CatOps channel. Pre-history As you may know, Terraform 1.4.0 has introduced changes, which break the previous unintentional behavior. Previously, you could ignore the lockfile and use cached providers as long as the version constraints in the code were okay with your local cache. Starting from 1.4.0, Terraform always checks the lockfile before going into your cache directory....

Annual Kubernetes Survey by CatOps It is the second time I run this survey. You can find the previous year’s results here. You can find the raw data in the Google Sheets. You can also read this article on Substack. Introduction This year, I ran this survey for two months: from the 14th of March to the 18th of May, and gathered 122 responses in total. Yet, I must admit that I only promoted this survey for a month....

Initially, I wrote this article in Ukrainian, but I decided to translate it to English and share it with a broader audience. I also added some suggestions from the comments and removed some regional-specific references, but overall the text is mostly unchanged compared to the original. Why am I even writing this? I participate in the hiring process for my company. Also, I’ve gone through quite a few interviews in my life....

My Notes from Fosdem & Config Management Camp Read on Substack. Sup! It’s been a while. So, both Fosdem and Config Management Camp conferences are back offline. Thus, I’ve spent a long weekend at my usual Belgian conferences. Here I want to share some notes with you from the talks I attended. I’m lazy, so I didn’t take notes in real-time. On one hand, this may be a reason these notes be not super accurate....

Building a CLI application in Go: Part 0 Intro I have written a tiny CLI app that can update the storage class of objects in an AWS S3 Bucket. To be completely honest, this tool is rather useless in the wild. You can achieve the same results natively with AWS S3 Lifecycle policies. However, this app is my opportunity to talk about writing CLI applications in Go as well as speculate about pet projects in general....