services:
  # PostgreSQL database
  postgresql_db:
    image: postgres:latest
    container_name: postgresql-db
    restart: always
    ports:
      - "5432:5432" # Default PostgreSQL port
    environment:
      POSTGRES_USER: glossary_dev_user
      POSTGRES_DB: glossary_dev_db
      POSTGRES_PASSWORD: glossary_dev_password
    volumes:
      - postgresql_db_data:/var/lib/postgresql # Docker managed volume

  # pgAdmin4 Web UI for PostgreSQL database
  pgadmin:
    image: dpage/pgadmin4:latest
    container_name: pgadmin
    restart: always
    ports:
      - "8888:80" # Expose Web UI to port 8888
    environment:
      PGADMIN_DEFAULT_EMAIL: admin@example.com
      PGADMIN_DEFAULT_PASSWORD: postgresql
    volumes:
      - pgadmin_data:/var/lib/pgadmin # Docker managed volume

volumes:
  postgresql_db_data:
  pgadmin_data: