title: docker: watch container logs/stdout/stderr from another container?
body: <p>I am writing a test framework that runs in a docker container and tests other containers.  </p>
  
  <p>One of the features I'd like to implement is the ability from my test framework container to perform an action against a target container (http post for ex) and watch the logs of the target container for a pattern.</p>
  
  <p>I don't want to have to modify the target container to do this.</p>
  
  <p>Is there a way to monitor the docker logs from one container to another?</p>
  
  <p>thanks</p>