title: Docker container apt-get install can't find package
body: <p>I'm trying to spin up a docker container that populates mongo via a node.js script that I have.</p>
  
  <p>With the script below, I get the error :</p>
  
  <pre><code>Step 2 : RUN apt-get update &amp;&amp; apt-get install -y nodejs
   ---&gt; Running in 7ed0f8e018e7
  Get:1 http://security.debian.org wheezy/updates Release.gpg [1554 B]
  Get:2 http://security.debian.org wheezy/updates Release [102 kB]
  Get:3 http://httpredir.debian.org wheezy Release.gpg [2373 B]
  Get:4 http://security.debian.org wheezy/updates/main amd64 Packages [405 kB]
  Get:5 http://httpredir.debian.org wheezy-updates Release.gpg [1554 B]
  Get:6 http://httpredir.debian.org wheezy Release [191 kB]
  Get:7 http://httpredir.debian.org wheezy-updates Release [143 kB]
  Get:8 http://httpredir.debian.org wheezy/main amd64 Packages [7637 kB]
  Get:9 http://httpredir.debian.org wheezy-updates/main amd64 Packages [5788 B]
  Fetched 8490 kB in 5s (1444 kB/s)
  Reading package lists...
  Reading package lists...
  Building dependency tree...
  Reading state information...
  E: Unable to locate package nodejs
  </code></pre>
  
  <p>with this dockerfile:</p>
  
  <pre><code>FROM mongo:2.6.11
  
  ENV NODE_ENV docker
  
  RUN apt-get update &amp;&amp; apt-get install -y nodejs
  </code></pre>
  
  <p>Why does apt-get not find nodejs?</p>