Description of problem:

I am unable to start the docker-registry service.


Version-Release number of selected component (if applicable):
0.9.1

How reproducible:
sudo dnf -y install docker registry;
sudo systemctl start docker-registry;
sudo systemctl enable docker-registry;

sudo systemctl -l status docker-registry


● docker-registry.service - Registry server for Docker
   Loaded: loaded (/usr/lib/systemd/system/docker-registry.service; enabled; vendor preset: disabled)
   Active: failed (Result: start-limit) since Mon 2016-03-14 14:45:19 EDT; 4min 42s ago
  Process: 15607 ExecStart=/usr/bin/gunicorn --access-logfile - --debug --max-requests 100 --graceful-timeout 3600 -t 3600 -k gevent -b ${REGISTRY_ADDRESS}:${REGISTRY_PORT} -w $GUNICORN_WORKERS docker_registry.wsgi:application (code=exited, status=2)
 Main PID: 15607 (code=exited, status=2)

Mar 14 14:45:19 monk systemd[1]: Unit docker-registry.service entered failed state.
Mar 14 14:45:19 monk systemd[1]: docker-registry.service failed.
Mar 14 14:45:19 monk systemd[1]: docker-registry.service holdoff time over, scheduling restart.
Mar 14 14:45:19 monk systemd[1]: start request repeated too quickly for docker-registry.service
Mar 14 14:45:19 monk systemd[1]: Failed to start Registry server for Docker.
Mar 14 14:45:19 monk systemd[1]: Unit docker-registry.service entered failed state.
Mar 14 14:45:19 monk systemd[1]: docker-registry.service failed.