title: Docker Image expiration date
body: <p>I would like to distribute a docker container from a private registry, but I would like to enforce a use period (e.g. 30 days) from the time the container is pulled.  Is there a way to do this without complex license servers?</p>
  
  <p>After 30 days, the expectation is they would be required to pull again or at least log into the registry.  Any time we remove someone's registry access, the container will be invalid at a max of 30 days later.</p>