April 2023 - openstack-discuss - lists.openstack.org

[cloudkitty] question to the scope_key in cloudkitty
by Noah Elias Feldt 28 Jul '23

28 Jul '23

Hello! I am currently trying to get CloudKitty to work with the Prometheus Collector and PyScripts. I noticed that the scope_key for Prometheus can only be changed once in the global configuration file. This was a problem for me because we need different scope_keys for different metrics. Many of the metrics still need the scope key "tenant_id" and some others "project_id". I have found in the documentation of CloudKitty no way to change this for each metric, so I have internally changed something in the source code and added the function to set the scope_key for each metric individually. I just wanted to ask if you would be interested if I submit the small change upstream? Thank you. Regards Noah Feldt

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[cinder] cinder-backup volume stuck in creating
by Satish Patel 28 Jul '23

28 Jul '23

Folks, I have configured nova and cinder with ceph storage. VMs running on ceph storage but now when i am trying to create a backup of cinder volume its getting stuck on creating and doing nothing. Logs also do not give any indication of bad. My cinder.conf [DEFAULT] enabled_backends = rbd-1 backup_driver = cinder.backup.drivers.ceph.CephBackupDriver backup_ceph_conf = /etc/ceph/ceph.conf backup_ceph_user = cinder-backup backup_ceph_chunk_size = 134217728 backup_ceph_pool = backups backup_ceph_stripe_unit = 0 backup_ceph_stripe_count = 0 restore_discard_excess_bytes = true osapi_volume_listen = 10.73.0.181 osapi_volume_listen_port = 8776 Output of "openstack volume service list" showing cinder-backup service is up but when i create a backup it's getting stuck in this stage and no activity. I am not seeing anything getting transferred to the ceph backups pool also. Any clue? or method to debug? # openstack volume backup list --all +--------------------------------------+------+-------------+----------+------+ | ID | Name | Description | Status | Size | +--------------------------------------+------+-------------+----------+------+ | bc844d55-8c5a-4bd3-b0e9-7c4c780c95ad | foo1 | | creating | 20 | +--------------------------------------+------+-------------+----------+------+

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Re: [all] [oslo.messaging] Interest in collaboration on a NATS driver
by Tobias Urdin 22 Jul '23

22 Jul '23

Hello Kai, Great to hear that you’re interested! I’m currently just testing this as a POC directly in devstack so there is real-world testing (not should it yet I think, needs more development first). Best regards Tobias > On 30 Aug 2022, at 18:32, Kai Bojens <kb(a)kbojens.de> wrote: > > Am 29.08.22 um 15:46 schrieb Tobias Urdin: > >> If anybody, or any company, out there would be interested in collaborating in a project to bring this support and maintain it feel free to >> reach out. I’m hoping somebody will bite but atleast I’ve put it out there for all of you. > > Hi, > I am very much interested to take a closer look at your work and maybe contribute to it. Although I'm working with OpenStack for my employer at the moment, I'd do this in my spare time as I'm not sure that I can convince him to add another staging system with a full OpenStack installation just for developing a RabbitMQ replacement. That's not on our agenda as we are mostly users and not developers of OpenStack. > > As I'm pretty new to the messaging topic and had just heard of NATS and your idea, I'll first would have to dive into NATS and then I would take a closer look at your code and maybe try to create some documentation or tests. So, I can't promise anything but as I said I'm very interested in your approach as I also see the massive load from RabbitMQ. > > This brings me to the most important question: Where do you run and test your code? > > Greetings, > Kai

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[ptl] Need PTL volunteer for OpenStack Vitrage
by Ghanshyam Mann 11 Jul '23

11 Jul '23

Hi Eyal, I am reaching out to you as you were PTL for OpenStack Vitrage project in the last cycle. There is no PTL candidate for the next cycle (2023.2), and it is on the leaderless project list. Please check if you or anyone you know would like to lead this project. - https://etherpad.opendev.org/p/2023.2-leaderless Also, if anyone else would like to help leading this project, this is time to let TC knows. -gmann

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Experience with VGPUs
by Oliver Weinmann 22 Jun '23

22 Jun '23

Dear All, we are planning to have a POC on VGPUs in our Openstack cluster. Therefore I have a few questions and generally wanted to ask how well VGPUs are supported in Openstack. The docs, in particular: https://docs.openstack.org/nova/zed/admin/virtual-gpu.html explain quite well the general implementation. But I am more interested in general experience with using VGPUs in Openstack. We currently have a small YOGA cluster, planning to upgrade to Zed soon, with a couple of compute nodes. Currently our users use consumer cards like RTX 3050/3060 on their laptops and the idea would be to provide VGPUs to these users. For this I would like to make a very small POC where we first equip one compute node with an Nvidia GPU. Gladly also a few tips on which card would be a good starting point are highly appreciated. I know this heavily depends on the server hardware but this is something I can figure out later. Also do we need additional software licenses to run this? I saw this very nice presentation from CERN on VGPUs: https://indico.cern.ch/event/776411/contributions/3345183/attachments/18516… In the table they are listing Quadro vDWS licenses. I assume we need these in order to use the cards? Also do we need something like Cyborg for this or is VGPU fully implemented in Nova? Best Regards, Oliver

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[ironic] ARM Support in CI: Call for vendors / contributors / interested parties
by Jay Faulkner 15 Jun '23

15 Jun '23

Hi stackers, Ironic has published an experimental Ironic Python Agent image for ARM64 ( https://tarballs.opendev.org/openstack/ironic-python-agent-builder/dib/file…) and discussed promoting this image to supported via CI testing. However, we have a problem: there are no Ironic developers with easy access to ARM hardware at the moment, and no Ironic developers with free time to commit to improving our support of ARM hardware. So we're putting out a call for help: - If you're a hardware vendor and want your ARM hardware supported? Please come talk to the Ironic community about setting up third-party-CI. - Are you an operator or contributor from a company invested in ARM bare metal? Please come join the Ironic community to help us build this support. Thanks, Jay Faulkner Ironic PTL

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[storlets] Proposal to make Train/Ussuri/Victoria EOL
by Takashi Kajinami 14 Jun '23

14 Jun '23

Hello, Currently we have multiple stable branches open but we haven't seen any backport proposed so far. To reduce number of branches we have to maintain, I'd like to propose retiring old stable branches(train, ussuri and victoria). In case you have any concerns, please let me know. Thank you, Takashi Kajinami

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Kubernetes Conformance 1.24 + 1.25
by Kendall Nelson 06 Jun '23

06 Jun '23

Hello All! First of all, I want to say a huge thanks to Guilherme Steinmuller for all his help ensuring that OpenStack Magnum remains Kubernetes Certified [1]! We are certified for v1.24! However, in digging into the set of conformance tests this round, it appears that we will not be able to get 1.25 certified with the current Magnum. This means that in May when we have to re-cert (every 3 months they reach an EOL because that's k8s release cadence) we will not be able to maintain this which is the other part of why I wanted to write this email - to raise awareness and ask for help digging into what needs to happen to make sure we can retain this. Tangentially related, Guilherme has posted a patch with documentation for how to run the conformance tests for yourself and it could use some reviews [2]. And one last thing, I have begun conversation with the opendev folks about what it might take to setup jobs to run the conformance tests periodically so that we don't have to manually run them when it's time to recert. I am planning on submitting a forum topic for this for those interested :) Long live LOKI! - Kendall Nelson [1] https://github.com/cncf/k8s-conformance/pull/2446 [2] https://review.opendev.org/c/openstack/magnum/+/849156

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[ironic][stable] Proposing EOL of ironic project branches older than Wallaby
by Jay Faulkner 02 Jun '23

02 Jun '23

Hi all, Ironic has a large amount of stable branches still in EM. We need to take action to ensure those branches are either retired or have CI repaired to the point of being usable. Specifically, I'm looking at these branches across all Ironic projects: - stable/queens - stable/rocky - stable/stein - stable/train - stable/ussuri - stable/victoria In lieu of any volunteers to maintain the CI, my recommendation for all the branches listed above is that they be marked EOL. If someone wants to volunteer to maintain CI for those branches, they can propose one of the below paths be taken instead: 1 - Someone volunteers to maintain these branches, and also report the status of CI of these older branches periodically on the Ironic whiteboard and in Ironic meetings. If you feel strongly that one of these branches needs to continue to be in service; volunteering in this way is how to save them. 2 - We seriously reduce CI. Basically removing all tempest tests to ensure that CI remains reliable and able to merge emergency or security fixes when needed. In some cases; this still requires CI fixes as some older inspector branches are failing *installing packages* in unit tests. I would still like, in this case, that someone volunteers to ensure the minimalist CI remains happy. My intention is to let this message serve as notice and a waiting period; and if I've not heard any response here or in Monday's Ironic meeting (in 6 days), I will begin taking action on retiring these branches. This is simply a start; other branches (including bugfix branches) are also in bad shape in CI, but getting these retired will significantly reduce the surface area of projects and branches to evaluate. I know it's painful to drop support for these branches; but we've provided good EM support for these branches for a long time and by pruning them away, we'll be able to save time to dedicate to other items. Thanks, Jay Faulkner

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[Cinder][LVM backend] LVM vg backed by a shared LUN
by wodel youchi 31 May '23

31 May '23

Hi, The examples I could find on the internet using LVM as backend for Cinder, they expose a local disk using lvm via Cinder. I did this configuration and I am wondering if it's correct, especially from a "simultaneous access" point of view. I have an iSCSI target backed by targetcli that exposes a LUN to my compute nodes. I did configure the iscsi connexion manually on each one of them and they all see the LUN, then on one of them I created the cinder-volumes VG (the other nodes can see the modifications), then I configured Cinder with lvm backend using this VG and it worked. I created some volumes on it without issues using my account. But what about when there are multiple tenants that try to create multiple volumes on it, is this configuration safe? Regards.

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