title: Livereload of ionic 2 with docker-compose instance does not work
body: <p>In a project I have this <code>Dockerfile</code>:</p>
  
  <pre><code>FROM node:6.9.4
  RUN npm install -g cordova@4.2.0 ionic@2.2.1
  ENV DOCKER_CONTAINER_APP=/web-app
  RUN mkdir -p $DOCKER_CONTAINER_APP
  ADD . $DOCKER_CONTAINER_APP
  WORKDIR $DOCKER_CONTAINER_APP
  EXPOSE 8100 35729
  RUN echo "ready to go!"
  </code></pre>
  
  <p>I am using docker-compose, and this is the <code>docker-compose yml</code> file I use in my project:</p>
  
  <pre><code>version: '2'
  services:
    web:
      build:
        context: .
      environment:
        - NODE_ENV=development
        - DEBUG='true'
      ports:
       - 8100:8100
       - 35729:35729
      volumes:
       - .:/web-app
       - ./node_modules:/web-app/node_modules
      command: sh -c 'npm install; ionic serve --all'
      stdin_open: true
  </code></pre>
  
  <p>All works well, this is the output of a docker-compose run web command:</p>
  
  <pre><code>[10:53:11]  ionic-app-scripts 1.0.0 
  [10:53:18]  watch started ... 
  [10:53:18]  build dev started ... 
  [10:53:18]  clean started ... 
  [10:53:18]  clean finished in 57 ms 
  [10:53:18]  copy started ... 
  [10:53:18]  transpile started ... 
  [10:53:36]  transpile finished in 17.96 s 
  [10:53:36]  webpack started ... 
  [10:53:37]  copy finished in 19.39 s 
  [10:53:51]  webpack finished in 15.10 s 
  [10:53:51]  sass started ... 
  [10:53:56]  sass finished in 4.90 s 
  [10:53:56]  build dev finished in 38.18 s 
  [10:53:57]  watch ready in 39.27 s 
  [10:53:57]  dev server running: http://localhost:8100/ 
  </code></pre>
  
  <p>But the native ionic <strong>livereload</strong> does not work. How can I use the Livereload with this ionic docker image ?</p>