Leonardo Rodríguez Hernández
Digital Transformation Consultant & Developer. Currently diving deep into DevOps and cloud infrastructure.
Editor’s Pick
The day I killed my cluster by closing a window
Last post ended with me promising a real Kubernetes cluster. I built one. Then I destroyed it by closing VMware. Here's what happened, why it wasn't recoverable, and the thing I learned about etcd that no course had bothered to tell me. The setup Three weeks ago I started studying for...
Day 3: Self-Hosting My Own Finance App with a CI/CD Pipeline
A while ago I built my own personal finance app. Nothing fancy: a single-page frontend (React over a CDN, JSX transpiled in the browser) served by a tiny Python server with zero dependencies, persisting everything to a local JSON file. It lived on my laptop, started with a .bat file, and worked fine. Today I...
Day 2: Docker, n8n, and a Self-Healing Server — Building Real Infrastructure on My Homelab
Moving to Docker The first version of my setup had Ghost and MySQL installed directly on the system. It worked, but it was fragile. One bad command and everything breaks. Reinstalling takes hours. Docker solves this. Instead of installing software directly on the server, everything runs in isolated containers. If something breaks, you restart the...
Day 1: How I Turned My Laptop Into my own web server
I didn't plan to spend today building a home server. But here we are. It started with a simple question: how do I check my battery from the terminal? Six hours later I had a live website running on my own hardware, accessible from anywhere in the world at leobunker.dev. This is...