version: '3'

services:

  server:
    image: postgres:${POSTGRES_VERSION:-11}
    environment:
      POSTGRES_USER: ${DB_USERNAME:-upperio_user}
      POSTGRES_PASSWORD: ${DB_PASSWORD:-upperio//s3cr37}
      POSTGRES_DB: ${DB_NAME:-upperio}
    ports:
      - '${DB_HOST:-127.0.0.1}:${DB_PORT:-5432}:5432'