1:58 a.m.
Hi Benny,
Thanks for the confirmation. I've installed openstack-ussuri and ceph
Octopus. Then I tried using these instructions, as well as the deep
dive that Eyal has posted at https://www.youtube.com/watch?v=F3JttBkjsX8.
I've done this a couple of times, and each time the engine fails when I
try to add the new managed block storage domain. The error on the
screen indicates that it can't connect to the cinder database. The
error in the engine log is:
2020-09-29 17:02:11,859-05 WARN
[org.ovirt.engine.core.bll.storage.domain.AddManagedBlockStorageDomainCommand]
(default task-2) [d519088c-7956-4078-b5cf-156e5b3f1e59] Validation of
action 'AddManagedBlockStorageDomain' failed for user
admin@internal-authz. Reasons:
VAR__TYPE__STORAGE__DOMAIN,VAR__ACTION__ADD,ACTION_TYPE_FAILED_CINDERLIB_DATA_BASE_REQUIRED,ACTION_TYPE_FAILED_CINDERLIB_DATA_BASE_REQUIRED
I had created the db on the engine with this command:
su - postgres -c "psql -d template1 -c \"create database cinder owner
engine template template0 encoding 'UTF8' lc_collate 'en_US.UTF-8'
lc_ctype 'en_US.UTF-8';\""
...and added the following to the end of /var/lib/pgsql/data/pg_hba.conf:
host cinder engine ::0/0 md5
host cinder engine 0.0.0.0/0 md5
Is there anywhere else I should look to find out what may have gone wrong?
--Mike
On 9/29/20 3:34 PM, Benny Zlotnik wrote:
The feature is currently in tech preview, but it's being worked
on.
The feature page is outdated, but I believe this is what most users
in the mailing list were using. We held off on updating it because the
installation instructions have been a moving target, but it is more
stable now and I will update it soon.
Specifically speaking, the openstack version should be updated to
train (it is likely ussuri works fine too, but I haven't tried it) and
cinderlib has an RPM now (python3-cinderlib)[1], so it can be
installed instead of using pip, same goes for os-brick. The rest of
the information is valid.
[1] http://mirror.centos.org/centos/8/cloud/x86_64/openstack-ussuri/Packages/p/
On Tue, Sep 29, 2020 at 10:37 PM Michael Thomas <wart(a)caltech.edu> wrote:
>
> I'm looking for the latest documentation for setting up a Managed Block
> Device storage domain so that I can move some of my VM images to ceph rbd.
>
> I found this:
>
>
https://ovirt.org/develop/release-management/features/storage/cinderlib-i...
>
> ...but it has a big note at the top that it is "...not user
> documentation and should not be treated as such."
>
> The oVirt administration guide[1] does not talk about managed block devices.
>
> I've found a few mailing list threads that discuss people setting up a
> Managed Block Device with ceph, but didn't see any links to
> documentation steps that folks were following.
>
> Is the Managed Block Storage domain a supported feature in oVirt 4.4.2,
> and if so, where is the documentation for using it?
>
> --Mike
> [1]ovirt.org/documentation/administration_guide/
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