Yes, I have tested passwordless ssh with the root user.
For my target host, I listed “localhost”
for my Host Registration Information I selected the authorized_keys file in root/.ssh/
It gives me this output:
==========================
Creating target directory…
==========================
Command start time 2015-01-14 14:57:37
Permission denied (publickey,password).
SSH command execution finished
host=localhost, exitcode=255
Command end time 2015-01-14 14:57:37
ERROR: Bootstrap of host localhost fails because previous action finished with non-zero exit code (255)
ERROR MESSAGE: Permission denied (publickey,password).
STDOUT:
Permission denied (publickey,password).