.dockerignore

build
database.sqlite
node_modules
ncp-debug.log
npm-debug.log

docker-compose.yml

version: "2"
services:
  web:
    build: .
    volumes:
      - ./:/app
    ports:
      - "3000:3000"
      - "3001:3001"
      - "3002:3002"
    command: >
      sh -c '
      if test -d node_modules;
      then
        echo node_modules_exists ;
      else
        cp -a /tmp/node_modules /app;
      fi && 
      yarn start
      '

Dockerfile

FROM node:7.2.1-alpine

# install all prerequisites
RUN apk add --no-cache make gcc g++ python

WORKDIR /tmp
COPY package.json /tmp
COPY yarn.lock /tmp

# Global install yarn package manager
RUN npm set progress=false && \
    npm install -g --progress=false yarn && \
    yarn install

WORKDIR /app
COPY ./ /app
RUN cp -a /tmp/node_modules /app/

CMD ["yarn", "start"]

EXPOSE 3000
EXPOSE 3001
EXPOSE 3002
EXPOSE 5000