About Rogitel.com - Where My DevOps World Meets the Maker's Madness

Hey there, and welcome to my digital workshop. This is rogitel.com, the place where I, Igor Teleychuk, untangle the knots I encounter while building things with code, solder, and filament.

By day, I work as a DevOps Engineer in the fintech sector. My job is to make sure that the systems processing your payments-be it through ACS, 3D Secure gateways, or even biometrics-don't just work; they're resilient, scalable, and secure. It's a world of Kubernetes clusters, Terraform modules, and Jenkins pipelines that I find deeply fascinating.

But when I clock out, a different kind of work begins. This website is the home for that work.

Why This Site Exists (The Real Reason)

I started Rogitel for a simple, selfish reason: my memory is terrible.

I can't count the number of times I've spent hours solving a complex problem-like configuring a specific Grafana dashboard for a Java app's JVM metrics or figuring out the perfect retraction settings for my Creality Ender 3 V2 with PETG filament-only to face the exact same issue six months later and forget how I fixed it.

This site is my public, searchable, and (hopefully) helpful memory dump. It's the notebook I should have kept from the start.

What You'll Actually Find Here

The content here is a chaotic but honest reflection of what I'm actually doing in my spare time. Lately, that's been:

  • The DevOps & Cloud Corner: This is where my professional and personal life blends. You'll find practical guides on things I'm implementing for my own projects, like "Automating my Home Lab with Ansible and a Raspberry Pi 4" or "Setting up a GitLab CI Pipeline for a Spring Boot Microservice."
  • The Java Workshop: I love building things with Java. Here, I write about the challenges and triumphs of developing my own projects, from grappling with Quarkus startup time to building a simple web app with Spring Boot and a PostgreSQL database.
  • The Maker's Lab (The Messy Part): This is where the theory meets the (sometimes burnt) finger. My current obsession is building a network of ESP32-based sensors for my apartment. My desk is a permanent mess of jumper wires, half-soldered boards, and LEDs that absolutely should not be blinking that way. I document the failures here as meticulously as the successes.
  • The 3D Dimension: I'm convinced 3D printing is 20% printing and 80% troubleshooting. I log my battles with bed adhesion, my quest for the perfect first layer, and reviews of different filaments. My latest victory was finally getting my direct drive extruder to print TPU without jamming.

My Philosophy: Learn in the Open

I believe you never truly understand something until you can explain it to someone else, or at least to your future, forgetful self. My posts aren't just the clean, final solution. I try to show the dead ends, the error messages, and the "Aha!" moments. If you find a post here, it's because I probably struggled with it for a solid weekend.

So, if you're also trying to get a Prometheus exporter working for your custom app, or your 3D printer is making a sound that can't be good, or you just want to see what happens when a DevOps guy tries to be a hardware engineer, you're in the right place.

Thanks for stopping by. And if you have a better way to do something I've posted, please let me know on LinkedIn I'm always learning.

Igor Teleychuk