Posts

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. ...

I was so happy when Netflix became available in my country. I was waiting for any serious streaming provider, that will give me easy and legal access to the movies I love. Ok, looks like not to all of them were there, but future was looking bright. As time was passing, offer was extending. They eventually added even some Polish movies, which my wife appreciated. Seems like my country is not in the same league like USA, Germany or UK. Screw it! It’s still better than nothing, right? ...

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. But pool as small as mine, relies on single drive which might die in between and data won’t be recoverable. Eventually, I decided to go for RAIDZ1 for now and in the future I rather move to RAIDZ2. For that, I have to buy one more disk - Black Friday is close, we will see. ...

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 was updating my blog and needed to generate few variants of images, in different resolution. Option 1 - sips There’s simple, builtin tool sips, that can be used for simple resizing 1: Resize single image sips -Z 36 orig.png --out static/favicon36x36.png -Z - maintain image aspect ratio 36 - maximum height and width It can be also used for batch image processing: Warning ...

I use brew extensively on MacOS. It’s just as convenient as many Linux package managers. What I don’t like, it leaves dependencies after removal of formula. There’s simple way to clean it up by running one command 1. Uninstall with dependencies brew uninstall FORMULA brew autoremove Info ...

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 -> [1.35000] Advanced Platform Misc Configuration (enable some power management) PCI Express Native Power Management -> [Enabled] Native ASPM -> [Auto] APM Configuration ErP Ready -> [Enable(S4+S5)] CPU Configuration (virtualization optimisations) Intel (VMX) Virtualization Technology -> [Enabled] System Agent (SA) Configuration VT-d -> [Enabled] Trusted Computing (TPM v2 for Windows 11) Security Device Support -> [Enabled] Onboard Devices Configuration USB Audio -> [Disabled] (don’t work well on Linux) INTEL 2.5G LAN1 -> [Disabled] (I don’t use them) INTEL 2.5G LAN2 -> [Disabled] USB power delivery in Soft Off state (S5) -> [Disabled] (disable mouse lightning when shut down) LED lightning (disable MB lightning when shut down) When system is in sleep, hibernate or soft off states -> [Stealth Mode] M.2_4 Configuration -> [PCIE] PRIEX16_3 Bandwidth -> [X2 Mode] (Xonar is only x2) CPU PCIE Configuration Mode -> [PCIEX16_1 + PCIEX16_2 + M.2_2] (I need that for 1st NVMe to work) Boot Boot Configuration POST Delay Time -> [1 sec]

Finally, they’re available! Wait a moment.. Actually they’re available for few months, just nobody published information about moving them to quay.io  external link and dropped poor guys using hub.docker.com  external link without any updates! Yes, that how they did! I found new place accidentally, reading some news about CentOS Stream 9 on their blog  external link . There was reference to CentOS 9 Stream dev builds of Docker images and I found “missing” stream and stream8 tags too. It’s not adding more confidence on my side to the CentOS project, when they’re not even communicating such changes publicly, sick! ...

I wanted to share publicly some photos, but I performed them with navigation enabled so they contained accurate localization of my house. I wanted to remove EXIF data GPS tags, my phone type and other irrelevant stuff. Tip ...