Linux

Intro: [SYN] Last 7-8 March 2024 I was at Open Source Day 2024: a free conference organized by Schrodinger-Hat Open Source Community. Two days of talks, meeting old and new friends, networking and fun in a beautiful city. Since the event was split into two tracks, I had to carefully choose which one to attend ; if you are interested all the sessions was recorded and live streamed. Day Stream Recording links 1 Alpha Track Beta Track 2 Alpha Track Beta Track Speaking of open source events, each talk proposal is simply an issue on a GitHub repository, and the selection was done by picking the ones with most “thumbs up” vote from the community....

🕵️ Intro The Linux Test Project is a joint project started years ago by SGI, OSDL and Bull developed and now maintained by IBM, Cisco, Fujitsu, SUSE, Red Hat, Oracle and many others. The project goal is to deliver tests to the open source community that validate the reliability, robustness, and stability of Linux. In these days I’m having a journey on the project so with this article I want to show step by step how to setup the project, how tests are actually written and give you a quick and dirty guide to write your first one....

🦀 Intro As an exercise, today we are going to package a game named battleship-rs developed by Orhun Parmaksız. We will also use the power of OpenSUSE build service to do most of the heavy work. Before starting, let’s check out the project: it’s hosted on github and if you want to try it out before packaging, it’s a nice game where two people can play in the terminal over a TCP network connection....

Prelude This is a followup from my previous post and a sort of continuation on the series of the topic, where we are exploring ways to make our test system more “unreliable” in order to observe if our applications behave nicely under challenging and not-ideal environments. In this article we are going to explore some linux technologies: Network Namespaces (netns) Virtual Ethernet Devices (veth) Network Emulation (netem) scheduling policy The goal is to setup a virtual network link inside our system, make the two network devices talk each other and then simulate a bad/slow/glitchy/flaky communication to test how applications behave under difficult conditions....