Docker Compose Explained: How to Configure Services, Volumes, and Networks

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A technical tutorial published on DEV Community walks developers through the core concepts of Docker Compose using version 5.2 of the Compose plugin. The guide demonstrates how to build a small application stack step by step using a compose.yaml file, covering five key building blocks: services, ports, volumes, networks, and environment variables. It explains the difference between bind mounts, which link host directories directly into containers, and named volumes, which are managed by Docker and better suited for database data. The tutorial also covers restart policies, recommending 'unless-stopped' as the practical default for most server services. Readers are shown how to launch, inspect, and log a running stack using standard docker compose commands.

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