Check Ceph capacity with another user

I have 3 nodes with Ceph and 1 node with OpenNebula.

After creating Ceph datastore i saw error in oned.log
like this:

$ /var/lib/one/remotes/tm/ceph/monitor 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 107

Command must show me information about pool capacity:

USED_MB=0
TOTAL_MB=1906759
FREE_MB=1906759

OpenNebula trying to connect to Ceph Nodes from oneadmin user.
How i can change it by default to use ceph user, because there are no oneadmin users on ceph nodes and I dont want to create them inadequately.

~/.ssh/config - Do not offer

I have another clusters, but opennebula & ceph are together at every host)
With this problem I encounter for the first time.


Versions of the related components and OS (frontend, hypervisors, VMs):
ceph version 10.2.9 (2ee413f77150c0f375ff6f10edd6c8f9c7d060d0)
OpenNebula 5.4.0
qemu

Steps to reproduce:
http://docs.opennebula.org/5.4/deployment/open_cloud_storage_setup/ceph_ds.html