Dockerizing node with minimal docker image size and with gyp dependency

docker-compose.yml

version: '3'
services:
  web:
    image: image_name
    ports:
      - '6060:3033'
    container_name: container_name
    restart: always

Dockerfile

FROM node:6-alpine

RUN apk update
RUN apk add --no-cache --virtual .gyp \
  python \
  make \
  g++
COPY package.json /tmp/package.json
RUN cd /tmp && yarn
RUN apk del .gyp
RUN mkdir -p /usr/app && cp -a /tmp/node_modules /usr/app

WORKDIR /usr/app
COPY ./ /usr/app

#EXPOSE 3033
#CMD yarn start