rorenv/postgres/docker-compose.yml

version: '3.1'

volumes:
  postgres:

services:
  postgres:
    image: postgres
    container_name: postgres
    restart: always
    environment:
      POSTGRES_DB: postgres
      POSTGRES_USER: postgres
      POSTGRES_PASSWORD: postgresql
    volumes:
      - postgres:/var/lib/postgresql/data
    ports:
      - 5432:5432