[ovirt-users] Re: trying to use Managed Block Storage in 4.3.2 with Ceph / Authentication Keys
Am 01.04.19 um 12:07 schrieb Benny Zlotnik:
Hi,
Thanks for trying this out!
We added a separate log file for cinderlib in 4.3.2, it should be
available under /var/log/ovirt-engine/cinderlib/cinderlib.log
They are not perfect yet, and more improvements are coming, but it might
provide some insight about the issue
OK, /var/log/ovirt-engine/cinderlib/cinderlib.log says:
2019-04-01 11:14:54,925 - cinder.volume.drivers.rbd - ERROR - Error
connecting to ceph cluster.
Traceback (most recent call last):
File "/usr/lib/python2.7/site-packages/cinder/volume/drivers/rbd.py",
line 337, in _do_conn
client.connect()
File "rados.pyx", line 885, in rados.Rados.connect
(/home/jenkins-build/build/workspace/ceph-build/ARCH/x86_64/AVAILABLE_ARCH/x86_64/AVAILABLE_DIST/centos7/DIST/centos7/MACHINE_SIZE/huge/release/12.2.11/rpm/el7/BUILD/ceph-12.2.11/build/src/pybind/rados/pyrex/rados.c:9785)
OSError: [errno 95] error connecting to the cluster
2019-04-01 11:14:54,930 - root - ERROR - Failure occurred when trying to
run command 'storage_stats': Bad or unexpected response from the storage
volume backend API: Error connecting to ceph cluster.
I don't really know what to do with that either.
BTW, the cinder version on engine host is "pike"
(openstack-cinder-11.2.0-1.el7.noarch)
>Although I don't think this is directly connected there is one other
>question that comes up for me: how are libvirt "Authentication Keys"
>handled with Ceph "Managed Block Storage" domains? With "standalone
>Cinder" setups like we are using now you have to configure a
"provider"
>of type "OpenStack Block Storage" where you can configure these keys
>that are referenced in cinder.conf as "rbd_secret_uuid". How is this
>supposed to work now?
Now you are supposed to pass the secret in the driver options, something
like this (using REST):
<property>
<name>rbd_ceph_conf</name>
<value>/etc/ceph/ceph.conf</value>
</property>
<property>
<name>rbd_keyring_conf</name>
<value>/etc/ceph/ceph.client.admin.keyring</value>
</property>
Shall I pass "rbd_secret_uuid" in the driver options? But where is this
UUID created? Where is the ceph secret key stored in oVirt?
thanks
Matthias