Sharing audio to a videoconference using pulseaudio

Since I do all the meetings via videoconferencing software in this pandemic, from time to time I need to do something extra than just sharing my face and voice: share a video from my laptop.

Luckily, pulseaudio has your backs, it’s just not that trivial.

Before we start, I suggest to read these posts how to share sound and hear it in your headphones:

This blog post serves as a TL;DR version for me how to do the easy version: only share the audio to the meeting without being able to hear it.

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Rootless Podman I/O

A colleague of mine asked me today to prove that rootless podman has worse I/O performance than running podman as root. Which I claimed.

My instinct is that it gotta be worse, because fuse-overlayfs is overlayfs implementation in userspace, so it gotta be less performant than a kernel module. Let’s see.

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Ansible Collections: init

sshnaidm gave me an opportunity to play with Ansible Collections today.

Since I was at AnsibleFest 2019 in Atlanta, I heard so much about the collections but never actually used them.

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Debugging Python Code

People on my team asked me some time ago how I debug things in our python code base. So I thought I’d share here.

The easiest (and least efficient) way to debug is to use print statements and logging. But since you’re not using a real debugger, you need to update the code and rerun in order to get new results.

Hence the most efficient way to debug things in python is to use a debugger. Don’t be scared, they are easy to master and they’ll serve you nicely for the rest of your life. They all are very similar.

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Building container images from scratch using Ansible

This blog post is a guide coming from ansible-bender#49 issue.

Okay, let’s start.

Building from scratch, what does it mean? It’s very simple: your base image is an empty directory:

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Git magic: split repository into two

We’ve just hit this point in our project (packit) that we want to split it to two repositories: CLI tool and a web service.

I was thinking of keeping the git history for files I want to move to the other repository. There is a ton tutorials and guides how to do such a thing. This is what worked for me:

  1. Clone the original repository.

  2. Have a list of files I want to remove:

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Updating a group of packages on Gentoo

I wanted to update my gentoo box once again. I did last update probably ~6 months ago. This usually means for me that I get a ton of conflicts:

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