version: "3.1"

services:
  app:
    image: node:16
    restart: always
    ports:
      - "127.0.0.1:8080:8080"
    volumes:
      - ./:/opt
      - /opt/node_modules
      - /opt/data
    links:
      - db
    command: bash -c "cd /opt && npm install && npm start"

  db:
    image: postgres
    restart: always
    environment:
      POSTGRES_USER: ${PGUSER}
      POSTGRES_DB: ${PGDATABASE}
      POSTGRES_PASSWORD: ${PGPASSWORD}
    volumes:
      - ./data:/var/lib/postgresql/data
    expose:
      - 5432