Milan Vojnovič

[Milan Vojnovič @milanoid]

@vojtechmares_ Same here. Taky mi to našlo chybky o kterých jsem netušil. A udělal jsem si skill /restart-cluster-nodes - pro bezpečný restart nodů (drain workers, restart, drain control plane, restart)

[Milan Vojnovič @milanoid]

@stibi YES! https://t.co/87xPD27noE

[Milan Vojnovič @milanoid]

You think your images are immutable. They're not.

nginx:1.29.6 today ≠ nginx:1.29.6 tomorrow.

Registries silently rebuild tags to patch CVEs — same tag, different SHA.

Fix: pin the digest too.

image: nginx:1.29.6@sha256:a1b2c3...

[Milan Vojnovič @milanoid]

EC2 instance slowing down to the point where SSH/SSM connections drop 🤔 Found the culprit — Cynet AV broad rule (with 40 exclusions) intercepts every syscall, bringing the system to its knees.

[Milan Vojnovič @milanoid]

https://t.co/IJe0LJxpTX

[Milan Vojnovič @milanoid]

@semaphoreci hey, yesterday I signed up for trial using my GH account with handle 'milanoid'. It worked. Today I cannot login at https://t.co/Hnncy0HFxN. No error, clicking Login with GitHub does not log me in. Can you please check it? Thnx.

[Milan Vojnovič @milanoid]

With friends like these, who needs enemies?

[Milan Vojnovič @milanoid]

Enough free disk space is not enough if running out free inodes (ext4).

https://t.co/azTVMgbfl6

[Milan Vojnovič @milanoid]

Windows 2022 Server EC2 c6id.4xlarg instance: $3700. A month. 🤯

#aws #microsft

[Milan Vojnovič @milanoid]

@damovsky depends :)

[Milan Vojnovič @milanoid]

@stibi co na tom poběží?

[Milan Vojnovič @milanoid]

My K3s cluster isn't single anymore. Just got a friend - a new worker node. 2 > 1. 👫

#kubernetes #homelab

[Milan Vojnovič @milanoid]

Cory Doctorow, who coined the term "Enshittification," is hosting a workshop for ICT workers https://t.co/SiTMHfAp1l Tuesday 18 November 2025

[Milan Vojnovič @milanoid]

@damovsky nice feedback loop!

[Milan Vojnovič @milanoid]

On EU chat control
https://t.co/P2ZhGDaHWE

[Milan Vojnovič @milanoid]

Some of my tasks in my 1st month as DevOps:

1. Update a GitHub Action defined in Terraform
2. Enforce GitHub Ruleset and create a GitHub Action to reject UPPERCASE files in a repository
3. Harden an AWS EC2 user-data bootstrap script
4. Security review of external GitHub Actions

[Milan Vojnovič @milanoid]

Work is the goal. The desired outcome is the product of the work.

[Milan Vojnovič @milanoid]

📢I joined the Platform Engineering dept. via internal transfer. It's an important milestone in my transition from QA to DevOps - within the second week I wrote a GitHub Action, built a new Docker image for a self-hosted runner, and haven't screwed up anything epically. #DevOps

[Milan Vojnovič @milanoid]

Big Tech's AI boom = massive power consumption. Who pays? Not them - we do, through higher energy bills. https://t.co/avrRSNMfzP

[Milan Vojnovič @milanoid]

Sounds easy, right? But my ISP's double NAT made that a bit more challenging.

[Milan Vojnovič @milanoid]

I managed to set up VPN server running in my HomeLab. Now I can manage my Kubernetes HomeLab cluster from anywhere, safely. Thanks ddclient for solving DDNS for me https://t.co/SdT6BNTWaV

#ddns #vpn #homelab