title: Import docker compose file in another compose file
body: <p>Is it possible to &quot;import&quot; or link a docker-compose file into another docker-compose file?</p>
  <p>Suppose I have two files:</p>
  <pre class="lang-yaml prettyprint-override"><code># docker-compose-1.yml
  services:
      A:
          # config
      B:
          # config
  </code></pre>
  <pre class="lang-yaml prettyprint-override"><code># docker-compose-2.yml
  services:
      C:
          # config
      import: docker-compose-1.yml
  </code></pre>
  <p>By running <code>docker-compose -f docker-compose-2.yml up</code>, I would like to start containers A, B (specified in the imported file) and C. Is this possible, without having to link both files with the <code>-f</code> parameter?</p>