version: '2'

services:
  postgres-data:
    image: busybox
    volumes:
      - /var/lib/postgresql/data
    container_name: postgres-datastore
  postgres:
    build: postgres
    environment:
      POSTGRES_USER: postgres
      POSTGRES_PASSWORD:
    ports:
      - "5432:5432"
    container_name: postgres-db
    volumes_from:
      - postgres-data