postgres + adminer setup to complement a nodejs project

docker-compose.yml

version: '3'
services:
  db:
    image: postgres
    restart: always
    volumes:
      - ./data/db:/var/lib/postgresql/data
    ports:
      - 5432:5432

    environment:
      - POSTGRES_DB=testDB
      - POSTGRES_USER=postgres
      - POSTGRES_PASSWORD=postgres

  adminer:
    image: adminer
    restart: always
    ports:
      - 8080:8080
# this starts a postgres service @ localhost:5432 and takes the data from the ./data/db folder
# adminer is a web interface for postgres @ localhost:8080