version: '3.7'
services:
  postgres:
    image: "postgres:12.2"
    ports:
      - "5490:5432"
    environment:
      POSTGRES_USER: postgres
      POSTGRES_PASSWORD: postgres
      POSTGRES_DB: stacks_core_sidecar
      POSTGRES_PORT: 5432
    volumes:
      - database-data:/var/lib/postgresql/data/ # persist data even if container shuts down

volumes:
  database-data: