version: '3.8'
services:
  postgres:
    image: postgres:16-alpine
    container_name: newsletter-db
    environment:
      - POSTGRES_USER=newsletter
      - POSTGRES_PASSWORD=newsletter
      - POSTGRES_DB=newsletter
    ports:
      - '5432:5432'
    volumes:
      - postgres-data:/var/lib/postgresql/data

volumes:
  postgres-data: