Docker Compose

Summary

A tool for defining and running multi-container applications (e.g. an app plus a database plus a cache) with a single YAML file and a single command — the standard way to run a local development stack.

• 1Write a docker-compose.yml defining a simple app plus a database service.
• 2Practice bringing the whole stack up and down with docker-compose up/down.
• 3Learn how Compose handles networking between services automatically.