Docker Compose Tutorial: Multi-Container Apps Made Easy

Learn Docker Compose from scratch: services, networks, volumes, depends_on, health checks, and environment variables.

Basic docker-compose.yml

services:\n  app:\n    build: .\n    ports: ['3000:3000']\n    depends_on:\n      db:\n        condition: service_healthy\n  db:\n    image: postgres:16-alpine\n    environment:\n      POSTGRES_PASSWORD: secret\n    healthcheck:\n      test: pg_isready -U postgres\n      interval: 10s

Validate your Compose YAML with our YAML Validator.

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