services:
  nginx:
    image: nginx:latest
    ports:
      - "80:80"
    healthcheck:
      test: ["CMD", "nc", "-z", "localhost", "80"]
      interval: 5s
      timeout: 10s
      retries: 15
      start_period: 5s
    command: >
      sh -c "apt-get update && apt-get install -y netcat && nginx -g 'daemon off;'"
    networks:
      - app-network

  postgres:
    image: postgres:latest
    environment:
      POSTGRES_DB: mydb
      POSTGRES_USER: user
      POSTGRES_PASSWORD: password
    healthcheck:
      test: ["CMD", "nc", "-z", "localhost", "5432"]
      interval: 5s
      timeout: 10s
      retries: 15
      start_period: 5s
    command: >
      sh -c "apt-get update && apt-get install -y netcat && docker-entrypoint.sh postgres"
    networks:
      - app-network

  redis:
    image: redis:latest
    healthcheck:
      test: ["CMD", "sh", "-c", "nc -z localhost 6379 || exit 1"]
      interval: 5s
      timeout: 10s
      retries: 15
      start_period: 5s
    command: >
      sh -c "apk add --no-cache netcat-openbsd && redis-server"
    networks:
      - app-network

networks:
  app-network:
    driver: bridge