<div dir="ltr">You have to configure ceph in such a way that oneadmin can run the rados command without sudo.<div><br></div><div>You need to make a keyring file available for the oneadmin user that can monitor the pools</div></div><div class="gmail_extra"><br><div class="gmail_quote">On Wed, Nov 19, 2014 at 12:19 PM, Huynh Dac Nguyen <span dir="ltr"><<a href="mailto:ndhuynh@spsvietnam.vn" target="_blank">ndhuynh@spsvietnam.vn</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
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<font face="Dialog">Hi All, </font> </p>
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<font face="Dialog">After search some articles and mailing list and try my best, my ceph datastore can't monitor the capacity. </font> </p>
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<font face="Dialog">1) How can opennebula detect the size of ceph?</font> </p>
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<font face="Dialog"> - Opennebula is a ceph-mon?</font> </p>
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<font face="Dialog"> 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? </font> </p>
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<font face="Dialog"> - The opennebula accesses to ceph-mon(font-end) with password-less to run "ssh ho-srv-ceph-02 rados df | grep Total"</font> </p>
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<font face="Dialog"> 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.</font> </p>
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<font face="Dialog">2) Was any step i missed ?</font> </p>
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<font face="Dialog">Some description for my system: </font> </p>
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<b><font face="Dialog">Ceph: </font></b><font face="Dialog"></font> </p>
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<font face="Dialog">- Deploy: ho-srv-ceph-01 </font> </p>
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<font face="Dialog">- MON,OSD: ho-srv-ceph-02,ho-srv-ceph-03,ho-srv-ceph-04</font> </p>
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<font face="Dialog">- Sudo: "ceph ALL = (root) NOPASSWD:ALL" for all</font> </p>
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<b><font face="Dialog">Opennebula:</font></b><font face="Dialog"></font> </p>
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<font face="Dialog">For testing ceph datastore only, i use one standalone server with oneadmin user</font> </p>
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<font face="Dialog">Opennebula: cloudlab-02</font> </p>
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<font face="Dialog">Prepare for ceph: </font> </p>
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<font face="Dialog">- password-less from ceph-deploy</font> </p>
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<font face="Dialog">- Sudo: "ceph ALL = (root) NOPASSWD:ALL" for all</font> </p>
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<font face="Dialog">- in ceph-deploy</font> </p>
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<font face="Dialog">[root@ho-srv-ceph-01 ~]#ceph-deploy install cloudlab-02</font> </p>
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<font face="Dialog">I use use ceph to access from ceph to opennebula and user oneadmin to access from opennebula to ceph</font> </p>
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<b><font face="Dialog">Following the official document: </font></b><font face="Dialog"></font> </p>
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<font face="Dialog">- in ceph monitor</font> </p>
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<font face="Dialog">[root@ho-srv-ceph-02 ~]# ceph osd pool create one 64</font> </p>
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<font face="Dialog">- in opennebula front-end</font> </p>
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<font face="Dialog">[oneadmin@cloudlab-02 ~]$ cat ceph.one </font> </p>
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<font face="Dialog">NAME = ceph</font> </p>
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<font face="Dialog">DS_MAD = ceph</font> </p>
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<font face="Dialog">TM_MAD = ceph</font> </p>
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<font face="Dialog">DISK_TYPE = RBD</font> </p>
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<font face="Dialog">POOL_NAME = one</font> </p>
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<font face="Dialog">BRIDGE_LIST = ho-srv-ceph-02</font> </p>
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<font face="Dialog">[oneadmin@cloudlab-02 ~]$ vi ceph.one </font> </p>
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<font face="Dialog">[oneadmin@cloudlab-02 ~]$ onedatastore create ceph</font> </p>
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<font face="Dialog">ceph1.one ceph2.one ceph.one </font> </p>
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<font face="Dialog">[oneadmin@cloudlab-02 ~]$ onedatastore create ceph.one </font> </p>
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<font face="Dialog">ID: 105</font> </p>
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<font face="Dialog">Thank you. </font> </p>
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<font face="Dialog">Regards, </font> </p>
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<font face="Dialog">ndhuynh</font> </p>
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<br></blockquote></div><br></div><br clear="all"><div><br></div>-- <br><div class="gmail_signature"><div dir="ltr"><div>Jaime Melis<br>Project Engineer<br>OpenNebula - Flexible Enterprise Cloud Made Simple<br><a href="http://www.OpenNebula.org" target="_blank">www.OpenNebula.org</a> | <a href="mailto:jmelis@opennebula.org" target="_blank">jmelis@opennebula.org</a></div></div></div>