👋 Who am I?

My name is Florian, and I’m a 22-year-old IT Technician based in Frankfurt, Germany. I spend my days working with Linux servers at a mid-sized company of around 50 people, dealing with everything from Docker containers to network infrastructure.

💭 Why This Blog?

I created this space to document what I learn, share the things that inspire me, and maybe help someone else solve a problem they’re stuck on. Sometimes the best way to understand something is to explain it to others.

Building a Self-Sustaining Infrastructure: A Two-Server Docker Setup

Overview

Creating a resilient, self-sustaining infrastructure doesn’t require complex enterprise solutions. With two strategically configured servers and a well-thought-out backup strategy, you can achieve both reliability and security for your self-hosted applications.

The Architecture

Docker Host Server

The primary server runs all application workloads using Docker containers. This containerized approach provides:

• Isolation: Each service runs in its own container with defined resources
• Portability: Services can be easily migrated or replicated
• Consistency: Docker Compose configurations ensure reproducible deployments

The Docker host maintains minimal external exposure, with only essential ports opened to the internet. This reduces the attack surface while still providing necessary services.