title: What is a docker-compose.yml file?
body: <p>I can't find a real definition of what a docker-compose file is.</p>
  <p>Is it correct to say this:</p>
  <blockquote>
  <p>A docker-compose file is a YAML file that allows us to deploy multiples Docker containers at the same time.</p>
  </blockquote>
  <p>I'd like to be able to explain a bit better what a docker-compose file is.</p>