Dockerfile for Node APPS

docker-compose.prod.yml

version: '2'
services:
  library:
    build: .
    environment:
      NODE_ENV: production
    ports:
- '3000:3000'

docker-compose.yml

version: '2'
services:
  library:
    build:
      context: .
      dockerfile: Dockerfile
    command: node_modules/.bin/nodemon --exec npm start
    environment:
      NODE_ENV: development
    ports:
      - 3000:3000
    volumes:
     - .:/home/app/library
- /home/app/library/node_modules

Dockerfile

FROM node:4.3.2

RUN useradd --user-group --create-home --shell /bin/false app &&\
  npm install --global [email protected]

ENV HOME=/home/app

COPY package.json npm-shrinkwrap.json $HOME/library/
RUN chown -R app:app $HOME/*

USER app
WORKDIR $HOME/library
RUN npm cache clean && npm install --silent --progress=false

USER root
COPY . $HOME/library
RUN chown -R app:app $HOME/*
USER app

CMD ["npm", "start"]