ERROR: execute[peer ["lo", "eth0", "bond0", "br0"]] (ceph::mon line 87) had an error: Expected process to exit with [0], but received '255'"

I've received the following error in my chef client.log

ERROR: execute[peer ["lo", "eth0", "bond0", "br0"]](ceph::mon line 87) had an error: Expected process to exit with [0], but received '255'"

After investigating the /etc/ceph/ceph.conf
the mon line has

mon host = lo, eth0, bond0, br0, eth0, lo, br0, bond0

Instead of the IP addresses of the hosts. i'm not sure why this has happened. I followed the documentation at http://wiki.ceph.com/02Guides/Deploying_Ceph_with_Chef

Thanks,

Inspect the ceph::mon resource around line 87 and the generated /etc/ceph/ceph.conf, then compare the monitor-host configuration with the linked Chef deployment documentation. Done means identifying why interface names are emitted instead of host IP addresses and confirming that the peer command exits with status 0.

Written by the indexing model from the issue text.