title: npm install hangs in NodeSource example "Dockerizing your Node.js Applications"
body: <p>Working through the very simple example in "<a href="https://nodesource.com/blog/dockerizing-your-nodejs-applications" rel="nofollow">Dockerizing your Node.js Applications</a>" I get failures in the docker build step.</p>
  
  <p><a href="https://nodesource.com/blog/dockerizing-your-nodejs-applications" rel="nofollow">https://nodesource.com/blog/dockerizing-your-nodejs-applications</a></p>
  
  <pre><code>steve@steve-docker:~/projects/docker-tutorial$ docker build -t "myapp" .
  Sending build context to Docker daemon 54.27 kB
  Step 0 : FROM nodesource/node:4.0
  4.0: Pulling from nodesource/node
  7a42f1433a16: Already exists 
  3d88cbf54477: Already exists 
  f7de320a63d8: Already exists 
  25ca017f7153: Already exists 
  96682a971c4a: Already exists 
  51b426f992a7: Already exists 
  7c37012fed92: Already exists 
  fd06eadac973: Already exists 
  9763c03a384a: Already exists 
  e4dca69ac79f: Already exists 
  Digest: sha256:e0f4a2cef10482abf99a3dda475db22b9f1b3e0441ff5f4c40aa58820cfcaec9
  Status: Downloaded newer image for nodesource/node:4.0
   ---&gt; e4dca69ac79f
  Step 1 : ADD package.json package.json
   ---&gt; Using cache
   ---&gt; cf6b38206c03
  Step 2 : RUN npm install
   ---&gt; Running in fc2c50798256
  npm WARN package.json docker-tutorial@1.0.0 No description
  npm WARN package.json docker-tutorial@1.0.0 No repository field.
  npm WARN package.json docker-tutorial@1.0.0 No README data
  </code></pre>
  
  <p>The already exists are no doubt as I ran it beforehand</p>
  
  <p>I don't know enough yet about docker to be able to debug within the context that docker build is running but npm install works fine in the host context (at command prompt). My guess is something is wrong with the nodesource/node image</p>
  
  <p>I'm running Ubuntu 15.0 x64 in VirtualBox on Windows 10.</p>