Docker Compose: One File, Many Containers (2026)

Stop typing long docker run commands. Learn Docker Compose — define your entire multi-container stack in a single YAML file and start it with one command. What you'll learn: • Replace 3+ docker run commands with docker compose up -d • Write a compose.yaml file (services, volumes, ports, networks) • Use .env files for secrets • The compose workflow (up, ps, logs, down, exec) • Why networks are automatic in Compose Timestamps: 0:00 - Introduction 0:55 - The problem with docker run 2:40 - Your first compose.yaml 6:15 - docker compose up -d 8:25 - .env files for secrets 11:10 - Exercise + solution Download `check-compose.py`: https://gitea.dtio/davidtio/oss 📚 Get "Levelling Up with Docker" on Amazon: https://www.amazon.com/dp/B0GGZ76PHW #Docker #DevOps #DockerCompose #Linux #Tutorial