title: Private docker registry and high availability
body: <p>We are currently running a private registry on one server hosting all our images on it.
  If the server crash, we basically loose all our images. We would like to find a way to enable high availability on our images. 
  An easy solution I see would be to have a registry instance per server.
  A load balancer would redirect(Round robin) the traffic to ones of the registry instances available. Registry instances would share the same network data drive(NFS) to store the images.</p>
  
  <p>Do you see any problems with this solution ?
  i.e: If a user push an image on an instance, and another push on another ( Load balancer round robin decision), would it create any lock files on the NFS ?</p>
  
  <p>Thanks for your feedback</p>