Docker & Containers

1 guide

Learn Docker from the ground up — installation, Docker Compose, volumes and networking, reverse proxies, image security, and fixes for the most common Docker errors.

Diagram-style cover showing one compose.yaml file defining a web container and a database container connected on a shared Docker network

Pillar Guide

Docker & Containers

Docker Compose Beginner Guide: Run Multiple Containers with One File

Learn Docker Compose from scratch: write one YAML file to run multiple containers, with a working WordPress + MySQL example and the core up/down commands.

Sysadmin Desk May 26, 2026 10 min read