Comment 18 for bug 1352916

I looked into this and the issue is because the correct trove key for the cached images haven't been inserted into the ~/.ssh/authorized_keys file on the devstack host.

The particular public key which needs to be added for the cached image to be able to access the devstack host can be found at http://git.openstack.org/cgit/openstack/trove-integration/tree/scripts/files/keys/id_rsa.pub

Please let me know if you're still seeing this issue after updating the configuration.