Actually it wasn't. Light-headed, I failed to recognize, that /etc/ceph/ceph.conf is only a symlink to the Proxmox fuse location below /etc/pve which permissions aren't easily changed.
I have now resorted to a workaround, dumping the output of 'ceph health' as a cron job and reading that periodically. That is fully sufficient for my situation.
Many thanks
01.02.2017, 09:58, "Henrik Korkuc" <lists@xxxxxxxxx>:
> On 17-02-01 10:55, Michael Hartz wrote:
>> I am running ceph as part of a Proxmox Virtualization cluster, which is doing great.
>>
>> However for monitoring purpose I would like to periodically check with 'ceph health' as a non-root user.
>> This fails with the following message:
>>> su -c 'ceph health' -s /bin/bash nagios
>> Error initializing cluster client: PermissionDeniedError('error calling conf_read_file',)
>>
>> Please note: running the command as root user works as intended.
>>
>> Someone else suggested to allow group permissions on the admin keyring, i.e. chmod 660 /etc/ceph/ceph.client.admin.keyring
>> Link: https://github.com/thelan/ceph-zabbix/issues/12
>> This didn't work.
>>
>> Has anyone hints on this?
>
> is /etc/ceph/ceph.conf readable for that user?
>
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