title: How to configure nginx with multiple docker-compose.yml files?
body: <p>If I want to setup nginx with my docker containers, one option is to setup the nginx instance in my <code>docker-compose.yml</code>, and link the nginx container to all application containers.</p>
  <p>The drawback of this approach, however, is that the <code>docker-compose.yml</code> becomes server-level, since only one nginx container can expose ports 80/443 to the internet.</p>
  <p>I'm interested in being able to define several <code>docker-compose.yml</code> files on the same server, but still easily expose the public-facing containers in each compose file via a single server-specific nginx container.</p>
  <p>I feel this should be pretty easy, but I haven't been able to find a good resource or example for this.</p>