title: Update only one Container via docker-compose
body: <p>Let's say I have a <em>docker-compose.yml</em> file containg five apps &amp; I started them via <code>docker-compose up -d</code> Now there is an update for <strong>one</strong> of these apps available which I want to use. So I pull this newer image and... how can I stop this one old container <strong>without stopping the four other container</strong>? </p>
  
  <ul>
  <li>Using <code>docker-compose down &amp;&amp; docker-compose up -d</code> would stop and restart all of my container, so that's wrong.</li>
  <li>Using <code>docker stop app_1 &amp;&amp; docker run app_1</code> would work but seems "wrong" to me because it's no <code>docker-compose</code> command.</li>
  </ul>
  
  <p>So what's the "docker-way" to do this?</p>