[one-users] opennebula 4.8 can't detect the capacity

[Jaime Melis]

You have to configure ceph in such a way that oneadmin can run the rados
command without sudo.

You need to make a keyring file available for the oneadmin user that can
monitor the pools

On Wed, Nov 19, 2014 at 12:19 PM, Huynh Dac Nguyen <ndhuynh at spsvietnam.vn>
wrote:

>  Hi All,
>
>  After search some articles and mailing list and try my best, my ceph
> datastore can't monitor the capacity.
>
>  1) How can opennebula detect the size of ceph?
>
>    - Opennebula is a ceph-mon?
>
>       If yes, how can oneadmin user can run the rados command to show the
> capacity, only root can do that? It must be "sudo rados", right?
>
>     - The opennebula accesses to ceph-mon(font-end) with password-less to
> run "ssh ho-srv-ceph-02 rados df | grep Total"
>
>       If yes, i need an user oneadmin in ceph-mon and ability to run rados
> df without sudo, so how? only root can run rados in this case.
>
>  2) Was any step i missed ?
>
>
>  Some description for my system:
>
> *Ceph: *
>
> - Deploy:        ho-srv-ceph-01
>
> - MON,OSD:   ho-srv-ceph-02,ho-srv-ceph-03,ho-srv-ceph-04
>
> - Sudo:           "ceph ALL = (root) NOPASSWD:ALL" for all
>
>
>  *Opennebula:*
>
> For testing ceph datastore only, i use one standalone server with oneadmin
> user
>
> Opennebula:   cloudlab-02
>
> Prepare for ceph:
>
> - password-less from ceph-deploy
>
> - Sudo:            "ceph ALL = (root) NOPASSWD:ALL" for all
>
> - in ceph-deploy
>
> [root at ho-srv-ceph-01 ~]#ceph-deploy install cloudlab-02
>
>  I use use ceph to access from ceph to opennebula  and user oneadmin to
> access from opennebula to ceph
>
>  *Following the official document: *
>
> - in ceph monitor
>
> [root at ho-srv-ceph-02 ~]# ceph osd pool create one 64
>
>  - in opennebula front-end
>
> [oneadmin at cloudlab-02 ~]$ cat ceph.one
>
> NAME      = ceph
>
> DS_MAD    = ceph
>
> TM_MAD    = ceph
>
>  DISK_TYPE = RBD
>
> POOL_NAME = one
>
>  BRIDGE_LIST = ho-srv-ceph-02
>
> [oneadmin at cloudlab-02 ~]$ vi ceph.one
>
> [oneadmin at cloudlab-02 ~]$ onedatastore create ceph
>
> ceph1.one  ceph2.one  ceph.one
>
> [oneadmin at cloudlab-02 ~]$ onedatastore create ceph.one
>
> ID: 105
>
>  Thank you.
>
>  Regards,
>
> ndhuynh
>
>
>
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-- 
Jaime Melis
Project Engineer
OpenNebula - Flexible Enterprise Cloud Made Simple
www.OpenNebula.org | jmelis at opennebula.org
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