Linux

I use Git a lot, even writing this article i will commit text few times. There’s a set of aliases I rely on daily and they’re first I add in new place. Some Git commands are unnecessarily verbose. You can make your life much easier with bash-completions, but if you write it tens of times per day, it’s anyway a lot of typing… and I’m a lazy man 😄 Simple status/log checks git s s = status --short --branch --untracked-files Shows a short, branch-focused status with untracked files....

One day, I was looking for some gains to improve the startup time for Jenkins agents. We run them as containers and because images are quite big, I was thinking about cutting the size, by cutting less frequently used features. I was looking for the metrics I could use to decide which changes are most valuable. I could think about two: download time and startup time. Together they combine to the gap between the request to start agent and the moment you can start to use it....

Today, I was trying to pull/push repos from Github and I was getting timeout errors. I use SSH for clonning and I prefer it this way over HTTPS. I was looking for the reason but it felt like a temporary glitch, either on Github’s or my provider’s side. I was googling for anything, that could help me and I found1 the way to use Github ssh clone/push/pull via SSH (as I want), but via port 443… Simulating HTTPS traffic… OK…...

TL;DR While reasoning is important, readers may not be interested in all the frustrations I experienced while figuring out how to get things done. If you’re looking for a quick solution, skip to the “What eventually worked?” section. However, if you’re interested in the thought process behind the solution, keep reading. Why? Some might bother why the hell I’d like to make my life so hard? 🤣 We used to use nodeenv  external link for that purpose....

Since upgrade to Ubuntu 22.04 keep seeing those warnings: W: http://ppa.launchpad.net/yubico/stable/ubuntu/dists/jammy/InRelease: Key is stored in legacy trusted.gpg keyring (/etc/apt/trusted.gpg), see the DEPRECATION section in apt-key(8) for details. W: https://updates.signal.org/desktop/apt/dists/xenial/InRelease: Key is stored in legacy trusted.gpg keyring (/etc/apt/trusted.gpg), see the DEPRECATION section in apt-key(8) for details. W: https://repo.skype.com/deb/dists/stable/InRelease: Key is stored in legacy trusted.gpg keyring (/etc/apt/trusted.gpg), see the DEPRECATION section in apt-key(8) for details. W: https://packagecloud.io/AtomEditor/atom/any/dists/any/InRelease: Key is stored in legacy trusted....

I’m back on the big stage! I haven’t attend any big conferences as presenter for some time, but this year will change it. I’m starting big, with a talk: Docker base images - Ideas how to manage them on scale  external link on Devoxx  external link conference in Kraków, that will take place on 22-24th June 2022. Want to meet? Meet there 😄 Update I uploaded slides from presentation to my Github account  external link ....

What I want to do? I use my pool to securely store backups, archive my old documents and keep huge family’s photo library. I have new disks. They were tortured with badblocks , so they’re ready to create ZFS pool. I’ve read few documents about different approaches 1 2 3. I wanted to be sure if anything changed during past years. One of articles recommends mirroring over RAIDZ. Resilvering is faster, at the same time putting IO less stress on whole pool....

I used to have RAID (or at least some variation of it) for my main storage. For redundancy, in case of disk failure. I started with some crazy LVM mirrors done on two disks of different size. Sync job was starting on every boot 😄 Then came time for RAID5 on mdadm + LVM for volume management. It was working nice until the moment when disks became bigger. Long array rebuilds or checks, required my PC to stay turned on overnight just to validate if stuff works still....

I don’t know how it is in your company, but in mine it’s considered a good practice to add ticket numbers to commit messages. It allows to easily determine why something was changed, etc. Makes sense, but this also means, that I should be adding this ticket to every message… And this doesn’t make sense for me. I will accidentally avoid it from time to time or make a lot of typos....

I’ve build new PC - it’s based on Asus ROG STRIX Z590-E GAMING WIFI  external link motherboard. Generally, I’m quite satisfied, but it have one irritating downside - after each UEFI BIOS upgrade, it’s silently resetting some of settings. Let me note, what I want to have there: Ai Tweaker (use my RAM capabilities) AI Overcloack Tuner -> [XMP I] DRAM Frequency -> [DDR4-3600MHz] DRAM CAS# Latency -> [16] DRAM RAS# to CAS# Delay -> [19] DRAM RAS# ACT Time -> [39] DRAM Voltage -> [1....