title: Redis server does not start after install in Docker
body: <p>I'm using the official ubuntu image and installing redis via <code>apt-get install redis-server</code></p>
  
  <p>This all works fine, however redis doesn't start.  If I connect to the container and run <code>redis-server &amp;</code> this will start redis in background.  I've tried adding <code>RUN redis-server &amp;</code> but that doesn't seem to work.</p>
  
  <p>Any ideas how to get redis to start?</p>