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version: '3' services: web: image: nginx:latest ports: - "80:80" depends_on: - db environment: - DATABASE_HOST=db - DATABASE_USER=myuser - DATABASE_PASSWORD=mypassword

db: image: postgres:latest environment: - POSTGRES_USER=myuser - POSTGRES_PASSWORD=mypassword volumes: - db-data:/var/lib/postgresql/data version: '3' services: web: image: nginx:latest ports: -

So, why use Docker Compose? Here are just a few benefits: version: '3' services: web: image: nginx:latest ports: -