[ovirt-users] Re: Latest ManagedBlockDevice documentation

On 10/15/2020 12:07 PM, Michael Thomas wrote: > On 10/15/20 10:19 AM, Jeff Bailey wrote: >> >> On 10/15/2020 10:01 AM, Michael Thomas wrote: >>> Getting closer... >>> >>> I recreated the storage domain and added rbd_default_features=3 to >>> ceph.conf.  Now I see the new disk being created with (what I think >>> is) the correct set of features: >>> >>> # rbd info rbd.ovirt.data/volume-f4ac68c6-e5f7-4b01-aed0-36a55b901 >>> fbf >>> rbd image 'volume-f4ac68c6-e5f7-4b01-aed0-36a55b901fbf': >>>         size 100 GiB in 25600 objects >>>         order 22 (4 MiB objects) >>>         snapshot_count: 0 >>>         id: 70aab541cb331 >>>         block_name_prefix: rbd_data.70aab541cb331 >>>         format: 2 >>>         features: layering >>>         op_features: >>>         flags: >>>         create_timestamp: Thu Oct 15 06:53:23 2020 >>>         access_timestamp: Thu Oct 15 06:53:23 2020 >>>         modify_timestamp: Thu Oct 15 06:53:23 2020 >>> >>> However, I'm still unable to attach the disk to a VM.  This time >>> it's a permissions issue on the ovirt node where the VM is running. >>> It looks like it can't read the temporary ceph config file that is >>> sent over from the engine: >> >> >> Are you using octopus?  If so, the config file that's generated is >> missing the "[global]" at the top and octopus doesn't like that. It's >> been patched upstream. > > Yes, I am using Octopus (15.2.4).  Do you have a pointer to the > upstream patch or issue so that I can watch for a release with the fix? https://bugs.launchpad.net/cinder/+bug/1865754

It's a simple fix.  I just changed line 100 of /usr/lib/python3.6/site-packages/os_brick/initiator/connectors/rbd.py to: conf_file.writelines(["[global]", "\n", mon_hosts, "\n", keyring, "\n"])