Simple docker-compose for nodejs project

docker-compose.yml

version: '3.2'
services:
  datastore:
    image: busybox
    volumes:
      - db_data:/var/lib/psql
  db:
    image: postgres:10.1
    volumes:
      - db_data:/var/lib/psql
    environment:
      POSTGRES_USER: username
      POSTGRES_PASSWORD: password
    ports:
      - "5432:5432"
  front:
    build:
      context: .
      dockerfile: ./docker/node/Dockerfile
    tty: true
    stdin_open: true
    command: "npm run dev"
    volumes:
      - yarn_install:/app/node_modules
      - ./:/app
    ports:
      - '8080:8080'
    depends_on:
      - db
    links:
      - db
volumes:
  db_data:
  yarn_install:

Dockerfile

# create a folder called docker and insode create another folder called node then put this file in there.
# note: change the node version the your preferred one.
FROM node:10

WORKDIR /app

# you may also want to change the location of package.json
COPY . /app/

RUN npm i