title: Adding files to standard images using docker-compose
body: <p>I'm unsure if something obvious escapes me or if it's just not possible but I'm trying to compose an entire application stack with images from docker hub. </p>
  
  <p>One of them is mysql and it supports adding custom configuration files through volumes and to run .sql-files from a mounted directory. </p>
  
  <p>But, I have these files on the machine where I'm running docker-compose, not on the host. Is there no way to specify files from the local machine to copy into the container before it runs it entrypoint/cmd? Do I really have to create local images of everything just for this case?</p>