April 2025 - openstack-discuss - lists.openstack.org

GPU PCI passthrough woes.
by Andy Speagle 09 Apr '25

09 Apr '25

Hey Folks, I could use a little assistance getting GPU passthrough working. I had this working already for one flavor of nvidia gpu... and I've added some hosts with a much newer gpu... I've updated the pci_alias and pci_passthrough variables and those seem to be getting set properly in nova.conf passthrough_whitelist = [{"vendor_id":"10de", "product_id":"1b06"},{"vendor_id":"10de", "product_id":"26b9"}] alias = {"name": "gpu", "product_id": "1b06", "vendor_id": "10de"} alias = {"name": "gpu-l40s", "product_id": "26b9", "vendor_id": "10de"} I believe I have all of the iommu stuff configured and have the pci- stub module entries... dmesg output shows that the GPUs are being claimed by the stub module. $ openstack flavor show t1.small_gpu_l40s +----------------------------+--------------------------------------+ | Field | Value | +----------------------------+--------------------------------------+ | OS-FLV-DISABLED:disabled | False | | OS-FLV-EXT-DATA:ephemeral | 0 | | access_project_ids | None | | description | None | | disk | 0 | | id | af70c94e-0026-4a39-bc1e-dfb93b286a54 | | name | t1.small_gpu_l40s | | os-flavor-access:is_public | True | | properties | pci_passthrough:alias='gpu-l40s:1' | | ram | 2048 | | rxtx_factor | 1.0 | | swap | 0 | | vcpus | 1 | +----------------------------+--------------------------------------+ Yet... I can't seem to get an instance to run using that new flavor... keeps complaining about there not being enough hosts available. Fault: code: 500 created: 2024-10-30T02:04:33Z message: "No valid host was found. There are not enough hosts available." details: | Traceback (most recent call last): File "/usr/lib/python3/dist-packages/nova/conductor/manager.py", line 1580, in schedule_and_build_instances host_lists = self._schedule_instances(context, request_specs[0], File "/usr/lib/python3/dist-packages/nova/conductor/manager.py", line 940, in _schedule_instances host_lists = self.query_client.select_destinations( File "/usr/lib/python3/dist- packages/nova/scheduler/client/query.py", line 41, in select_destinations return self.scheduler_rpcapi.select_destinations(context, spec_obj, File "/usr/lib/python3/dist-packages/nova/scheduler/rpcapi.py", line 160, in select_destinations return cctxt.call(ctxt, 'select_destinations', **msg_args) File "/usr/lib/python3/dist- packages/oslo_messaging/rpc/client.py", line 189, in call result = self.transport._send( File "/usr/lib/python3/dist- packages/oslo_messaging/transport.py", line 123, in _send return self._driver.send(target, ctxt, message, File "/usr/lib/python3/dist- packages/oslo_messaging/_drivers/amqpdriver.py", line 689, in send return self._send(target, ctxt, message, wait_for_reply, timeout, File "/usr/lib/python3/dist- packages/oslo_messaging/_drivers/amqpdriver.py", line 681, in _send raise result nova.exception_Remote.NoValidHost_Remote: No valid host was found. There are not enough hosts available. Traceback (most recent call last): File "/usr/lib/python3/dist- packages/oslo_messaging/rpc/server.py", line 241, in inner return func(*args, **kwargs) File "/usr/lib/python3/dist-packages/nova/scheduler/manager.py", line 223, in select_destinations selections = self._select_destinations( File "/usr/lib/python3/dist-packages/nova/scheduler/manager.py", line 250, in _select_destinations selections = self._schedule( File "/usr/lib/python3/dist-packages/nova/scheduler/manager.py", line 416, in _schedule self._ensure_sufficient_hosts( File "/usr/lib/python3/dist-packages/nova/scheduler/manager.py", line 455, in _ensure_sufficient_hosts raise exception.NoValidHost(reason=reason) nova.exception.NoValidHost: No valid host was found. There are not enough hosts available. Any clues on how/where to dig into this more to see what might be missing? Thanks. -- Andy Speagle

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[nova][rfe] Support for memory allocation mode='immediate' in libvirt XML for large memory VMs
by 김동훈 09 Apr '25

09 Apr '25

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[telemetry] Export Openstack Metrics to Prometheus
by Fernandes Figueiredo, Alex 08 Apr '25

08 Apr '25

Hello Openstack Telemetry Team, Do you know if we have a Prometheus exporter already available to export Openstack metrics stored by Gnocchi? I'm currently working on re-enabling the Openstack Telemetry services for the StarlingX Openstack (STX-O) project and we are moving in the direction of using the standard Openstack telemetry pipeline: openstack services -> ceilometer -> gnocchi -> aodh. However, to enable the integration with other systems and tools, we are looking for a way to export the Openstack metrics stored by Gnocchi to Prometheus. Thank you in advance for any help. Regards, Alex Figueiredo.

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[all] OpenInfra Summit Europe Scheduled for October 2025
by Jeremy Stanley 08 Apr '25

08 Apr '25

In case anyone hasn't seen the news already, OpenInfra Summit Europe has been officially scheduled for October 17-19, 2025, at École Polytechnique near Paris, France: https://openinfra.dev/blog/openinfra-summit-2025 The OpenInfra Foundation is currently recruiting interested individuals to join a Programming Committee kickoff call on Thursday (2025-03-27). This call will be used to plan the conference tracks for the OpenInfra Summit ahead of the CFP, and will greatly benefit from OpenStack's involvement as always. If you would like to participate in the Programming Committee or assist in any other way, please email Helena Spease <helena(a)openinfra.dev>. I am also happy to try and point people in the right direction if you have any questions and prefer to reach out to me. On behalf of the foundation, we’re excited to bring the OpenInfra community together in France, and sincerely hope you'll join us! -- Jeremy Stanley

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[cinder] 2025.2 PTG reminder and schedule
by Jon Bernard 08 Apr '25

08 Apr '25

Hello all, We covered the schedule in last week's meeting but I wanted to post it here for reference. For Cinder, we are meeting Wednesday, Thursday, and Friday of this week from 14:00 UTC until 16:00 UTC. Notable cross-projects sessions are: Glance/Cinder/Nova Wednesday 14h --> 15h UTC Neutron/Cinder/Nova Thursday 13h --> 14h UTC Please note that the Neutron/Nova session is the hour *before* our session block. As we did in the previous PTG, we'll be using the same google meet link and the sessions will be recorded. Everything should be noted in the etherpad. If you notice something is missing please add it or reach out with any questions. See you all in a couple of days! [1] https://etherpad.opendev.org/p/apr2025-ptg-cinder -- Jon

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[neutron] Moving CI Meeting to Monday 1400 UTC
by Yatin Karel 08 Apr '25

08 Apr '25

Hello Neutron Team !! As discussed/agreed over the PTG, pushed the changes[1][2] for the new timing. Next Monday CI meeting will be at the new time. [1] https://review.opendev.org/c/opendev/irc-meetings/+/946631 [2] https://etherpad.opendev.org/p/neutron-ci-meetings -- Thanks and Regards Yatin Karel

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security auditing and compliance in OpenStack environments
by acc.bu.mo＠gmail.com 08 Apr '25

08 Apr '25

Hi everyone, I'm currently working on my end-of-studies project focused on security auditing and compliance in OpenStack environments. As part of this project, I'm exploring how OpenStack deployments can align with compliance frameworks, especially SecNumCloud (from the French cybersecurity agency ANSSI). However, I'm also very interested in hearing about any tools, methods, or practices used for other standards (ISO 27001, CIS, FedRAMP, etc.). I'm still new to OpenStack and cloud compliance in general, and I'm finding it challenging to identify practical tools or workflows that companies actually use to perform security audits or compliance checks in OpenStack. If you're using (or have used) any tools, scripts, checklists, middleware, SIEM integrations, etc. for auditing OpenStack security or compliance I would be incredibly grateful if you could share your experience or point me in the right direction 🙏 Thank you so much in advance! Best regards,

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Debian OpenStack Epoxy packages are available
by Thomas Goirand 08 Apr '25

08 Apr '25

Hi, Just a quick mail to tell everyone that I have finished Tempest validation of OpenStack Epoxy for OpenStack Bookworm backports. Currently, 1468 tests are passing, and there's only 8 tests that I need to investigate, though looking at the logs, it doesn't seem anything important is ongoing. Also note that I have integrated all Designate tests, that are all passing ok. As always, packages are available through osbpo.debian.net unofficial backports, accessible using extrepo. Under Bookworm, simply do: apt-get install extrepo extrepo enable openstack_epoxy apt-get update I haven't started validation under Debian 13 (aka: Trixie). I'm am currently working on it. It's going to be a little bit more difficult as Trixie runs RabbitMQ 4.0.5, which doesn't support HA queues anymore, so I need to switch to quorum queues in my test bed. Also, Trixie is running Python 3.13, and I've heard Eventlet is still not 100% compatible with it. Having Epoxy in Trixie is nice, because this means Bookworm users will be able to skip Dalmatian, and we're now aligned with the SLURP thing. As always, bug reports are welcome. Cheers, Thomas Goirand (zigo)

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[Kolla-ansible]Dalmatian- How fix this bug: 'Port' object has no attribute 'security_groups
by Franck VEDEL (UGA) 08 Apr '25

08 Apr '25

Hi, New installation with kolla-ansible, Dalmatian, Ubuntu 2204. Everything works… except « Edit port » in Horizon. This bug is known: https://bugs.launchpad.net/horizon/+bug/2089557 My problem is: How to apply the fix with kolla-ansible. Can you help me? This bug is really a problem for my students who use Horizon. Thanks a lot Franck

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[publiccloud-sig] Sessions during PTG
by Felix Kronlage-Dammers 08 Apr '25

08 Apr '25

Hi, the publiccloud-sig will meet twice as part of the PTG. On Tuesday (today) there will be a session at 16 UTC. On Wednesday (tomorrow) we will meet in our usual summertime slot at 7 UTC. The sessions will be here: https://meetpad.opendev.org/apr2025-ptg-public-cloud-sig (check also https://ptg.opendev.org/ptg.html) Looking forward to lively participation :) cheers felix -- Felix Kronlage-Dammers Open Source Business Alliance - Bundesverband für digitale Souveränität e.V. Tel.: +49-30-206539-205 | Matrix: @fkronlage:matrix.org | fkr(a)osb-alliance.com

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