version: '3.8'

services:
  db:
    container_name: postgres
    image: postgres:15
    environment:
      - POSTGRES_DB=${DB_DATABASE}
      - POSTGRES_USER=${DB_USERNAME}
      - POSTGRES_PASSWORD=${DB_PASSWORD}
    restart: always
    ports:
      - ${DB_PORT}:5432
    networks:
      - postgres
    volumes:
      - type: volume
        source: db
        target: /var/lib/postgresql/data

volumes:
  db:

networks:
  postgres:
    name: postgres_network