The docker-compose.yml file is the heart of Docker Compose. It defines the services, networks, and volumes for your application. Here's a simple example:
db: image: postgres:latest environment: - POSTGRES_USER=myuser - POSTGRES_PASSWORD=mypassword volumes: - db-data:/var/lib/postgresql/data The docker-compose
version: '3' services: web: image: nginx:latest ports: - "80:80" depends_on: - db environment: - DATABASE_HOST=db - DATABASE_USER=myuser - DATABASE_PASSWORD=mypassword The docker-compose