title: Docker: Combine multiple images
body: <p>Is it possible with Docker to combine two images into one?</p>
  
  <p>Like this here:</p>
  
  <pre><code>genericA --
              \
               ---&gt; specificAB
              /
  genericB --
  </code></pre>
  
  <p>For example there's an image for Java and an image for MySQL. </p>
  
  <p>I'd like to have an image with Java <strong>and</strong> MySQL.</p>