unable to upload files to ci-files02 over ssh from opennebule vms

Trying to upload files from OpenNebula VM instances to ci-files02 server fails due to missing keys on the VM instances.

First error is "host key verification failed". Using VNC to test, after doing ssh to the host and adding server key to .ssh/known_hosts, the error is then "permission denied" due to missing client key to match known hosts on the server.

Please add needed keys to VMs to enable accessing ci-files02 from tests over ssh.