January 2025 - openstack-discuss - lists.openstack.org

[magnum] GPU support with magnum
by Satish Patel 19 Jan '25

19 Jan '25

Folks, We are running magnum with openstack to spin up k8s clusters and everything works as expected. Now I want GPU support so we can do some AI/ML stuff with k8s. Does magnum support GPU and how does it work? In the past I used GPU in passthrough mode to expose hardware to VMs but not sure how it works for k8s and what are the challenges?

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[neutron][upgrades] Linuxbridge driver removal and migration
by Brian Haley 18 Jan '25

18 Jan '25

Hi Stackers, In 2022, during the Zed cycle, the Neutron team took a step at marking some items as experimental. One of those was the Linuxbridge driver. The reason was due to it being unmaintained for a number of cycles, and no one was able to take on its ownership. The implication of this decision was that it was consider deprecated, even if not given an official warning message. In doing this, all gate jobs were moved into the experimental queue, feature-parity with other drivers was deemed unnecessary, and bug fixing was considered best-effort. Since then, both major distros have stopped supporting new deployments using Linuxbridge, and have been mainly focused on OVN. So what does this mean? We (the neutron cores) have come to the conclusion that it is time to take the next step and remove the code from the tree [1]. After 5 cycles of being considered experimental without any investment it just makes sense. We plan on doing this in the current Epoxy cycle. We realize that there are still deployments using Linuxbridge, and hopefully they have been looking at migration strategies since we originally marked the code experimental. This email is another push to the user community to start looking at this, especially if you are planning any new deployments. There has been at least one migration guide written at [2] (thanks Jim!), and at this point I would encourage those still using Linuxbridge to look at it and start asking any questions they have so we have the chance to make it better and can make that process easier. Thanks for reading, -Brian, Neutron PTL [0] https://review.opendev.org/c/openstack/neutron/+/845181 [1] https://review.opendev.org/c/openstack/neutron/+/927216 [2] https://www.jimmdenton.com/migrating-lxb-to-ovn/

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openstack ssl
by engineer2024 17 Jan '25

17 Jan '25

The present model for openstack API services uses keystone for authentication mechanism for the REST API. is it possible to test the api calls directly using the server/port of a API service, bypassing the keystone URI ? does this require any modification in the configuration of the openstack service ? Thanks

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[neutron] Using address scopes in a DVR environment breaks floating IPs
by Lukas Steiner 17 Jan '25

17 Jan '25

Hi all, I hope to get some advice here if we’re doing something wrong or ran into a bug. We have an OpenStack environment (wallaby) with Distributed Virtual Router (DVR) enabled (compute nodes use DVR_NO_EXTERNAL agent mode, network nodes use DVR_SNAT) and we would like to onboard our provider network to a subnet pool part of an address scope to allow routed self-service networks. But as soon as the provider network is part of an address scope, the floating IP feature stops working. After debugging we found that adding the network to an address scope results in an additional set of firewall rules in the router and snat network namespaces which blocks cross-scope traffic. But floating IPs should be the exception to that and there are indeed rules that explicitly allow them by setting a mark in the iptables mangle table: -A neutron-l3-agent-floatingip -d <floating-ip>/32 -i qg-<random-id> -j MARK --set-xmark 0x4000000/0xffff0000 We can find these rules in the qrouter namespaces, but they’re missing in the snat namespaces. If we add the rule manually to the snat namespace, the floating IP is working again. If we switch the compute nodes to DVR agent mode, it also works, as the snat namespace is not used. I have already searched for bugs and changes in the DVR router code since wallaby but can’t find anything which is not already patched in wallaby. So, I’m wondering if we have an unsupported setup with combining dynamic routing with DVR and centralized network nodes or facing a long running neutron bug. Maybe someone has a similar setup or can confirm that this use case should be supported? Regards, Lukas

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Re: Dalmatian Devstack: Empty Port Binding section in Horizon
by Lajos Katona 17 Jan '25

17 Jan '25

Hi, I checked and I hoped that this SDK patch : https://review.opendev.org/c/openstack/openstacksdk/+/915902 or SDK 4.2.0 is enough (for binding details at least) but something else is missing. Could you please open a bug report for this issue, I try to check where to fix it. Lajos Katona (lajoskatona) <berndbausch(a)gmail.com> ezt írta (időpont: 2025. jan. 14., K, 13:25): > Thanks much, Lajos! > > > > It was installed by Devstack with git_clone https://opendev.org/openstack/horizon.git > /opt/stack/horizon stable/2024.2. Furthermore, under /opt/stack/horizon/ > horizon.egg-info I find a file named pbr.json, which contains > > > > {"git_version": "4bcc3dcea", "is_release": false} > > > > I hope that makes it clear what I am using! Or is there another way of > obtaining the Horizon release number? > > > > Of the list of patches you shared, the ones that seem relevant (SDK for > neutron ports, SDK for neutron networks) were merged in August and June, > respectively, which makes me think that should be included in my release. > > > > And since this is an HTML message now, I am adding two screenshots. Not > only port binding info, but also network provider info is missing. I can > confirm that this is the admin user. > > > > Kind regards, > > > > Bernd > > > > > > *From:* Lajos Katona <katonalala(a)gmail.com> > *Sent:* Tuesday, January 14, 2025 5:22 PM > *To:* berndbausch(a)gmail.com > *Cc:* openstack-discuss <openstack-discuss(a)lists.openstack.org> > *Subject:* Re: Dalmatian Devstack: Empty Port Binding section in Horizon > > > > Hi Bernd, > > Shall I ask which version of Horizon do you use? Recently some patches > were merged for changing to SDK in the background: > > > https://review.opendev.org/q/project:openstack/horizon+topic:%22bug/1999774… > > And to be sure if you hit an issue from that change series or something > else. > > > > Best wishes > > Lajos Katona (lajoskatona) > > > > <berndbausch(a)gmail.com> ezt írta (időpont: 2025. jan. 14., K, 4:43): > > Is there a known bug, either in Devstack or Horizon, that prevents Neutron > port binding details from being displayed? My googling did not find > anything. > > As admin, I open a port's details, and in the Binding section at the end of > the page, all I get is a bold text "VNIC Type". The CLI command "openstack > port show" does provide the details. Also on a Xena Devstack, Horizon > displays them[1]. Horizon's setup.py seems to be identical on both > releases, > as far as Neutron configuration is concerned. > > Thanks for any input. > > Bernd. > > [1] The Binding details I expect: > > Binding > > VNIC Type Normal > Host xena-202 > Profile None > VIF Type ovs > VIF Details > connectivity l2 > port_filter True > ovs_hybrid_plug False > datapath_type system > bridge_name br-int > >

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[qa] QA office hours new time
by Ghanshyam Mann 17 Jan '25

17 Jan '25

Hi All, As informed by Martin[1], we are changing the QA office hours to Wed biweekly at 18.00 UTC. I have updated the meeting info[2] and wiki page[3]. This time might not suit many of you, so feel free to ping me on IRC if any topic/review needs urgent attention. [1] https://lists.openstack.org/archives/list/openstack-discuss@lists.openstack… [2] https://review.opendev.org/c/opendev/irc-meetings/+/939480 [3] https://wiki.openstack.org/wiki/Meetings/TechnicalCommittee -gmann

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Adding a compute node using Openstack ansible
by Derek O keeffe 16 Jan '25

16 Jan '25

Hi all, I have something weird happening when trying to add a compute node to a working cluster. I added "compute3" to my openstack_user_config.yml compute_hosts stanza and ran the setup_hosts playbook. This created (re-created) the openstack_inventory.json file which I have reviewed thoroughly and I can see compute3 added everywhere compute1 and compute2 had been added from the deploy. When I run the second playbook setup_infrastructure, all the plays skip saying "no hosts matched" but the tasks all touch compute3.... I ran /opt/openstack-ansible/scripts/inventory-manage.py -G and I can see my compute3 listed in the output. The commands I run for the playbooks are as follows: openstack-ansible setup-hosts.yml --limit ,compute3openstack-ansible setup-infrastructure.yml --limit ,compute3openstack-ansible setup-openstack.yml --limit ,compute3 I've been trying to solve this since before Christmas with no luck, could anyone please shed some light on what the issue could be? Output of first playbook: https://paste.openstack.org/show/blArG04q6wgUCJy9JPh3/Output of second playbook: Paste #bSiabwqOk7qdns2iBYDA | LodgeIt! | | | | Paste #bSiabwqOk7qdns2iBYDA | LodgeIt! | | | Any advice or info would be greatly appreciated. Regards,Derek

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[all] 2024 OpenInfra Foundation annual report
by Jeremy Stanley 15 Jan '25

15 Jan '25

The OpenInfra Foundation staff have published 2024's annual report: https://openinfra.org/annual-report/2024 As usual, it includes a section on OpenStack, covering some highlights of our community's achievements throughout the year. There's an accompanying post on the OpenStack Blog too: https://www.openstack.org/blog/openstack-2024-community-progress-highlights/ Please feel free to share these anywhere you think people may be interested in seeing our year in review, or that of our sibling communities and other activities supported by the foundation. -- Jeremy Stanley

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[kolla-ansible][keystone]problem using LDAP and TLS
by Franck VEDEL 15 Jan '25

15 Jan '25

Hello, with all previous versions, to authenticate users from an Active Directory domain, using an LDAP connector worked without any problem on my labs, with or without using TLS. With TLS the file used is the following: /etc/kolla/config/keystone/domains/keystone.DOM1.conf [identity] driver = ldap [ldap] url = ldap://172.16.60.41 user = CN=ldapconnect,OU=openstack,DC=dom1,DC=loc password = XXXXXXXXXX suffix = DC=dom1,DC=loc user_tree_dn = OU=openstack,DC=dom1,DC=loc user_objectclass = person user_filter = (|(memberOf=CN=openstack-users,OU=openstack,DC=dom1,DC=loc)(memberOf=CN=openstack-admins,OU=openstack,DC=dom1,DC=loc)) user_id_attribute = sAMAccountName user_name_attribute = sAMAccountName user_mail_attribute = mail user_pass_attribute = user_enabled_attribute = userAccountControl user_enabled_mask = 2 user_enabled_default = 512 user_attribute_ignore = password,tenant_id,tenants group_objectclass = group group_tree_dn = OU=openstack,DC=dom1,DC=loc group_filter = (|(CN=openstack-users)(CN=openstack-admins)) group_id_attribute = cn group_name_attribute = name query_scope = sub chase_referrals = false use_tls = True tls_certificate = /etc/kolla/certificates/adserv.crt tls_req_cert = never I want to see if it works with Dalmatian (to update my lab, which I can't do with the Bobcat and Caracal versions because bugs block me). Without TLS (use_tls = False) , no problem, it works, my AD users can use Horizon and have access to their project. If I put "use_tls = True" and tls_certificate = /etc/kolla/certificates/adserv.crt .... It doesn't work with Dalmatian, certificate problem. Indeed, the certificate is not copied into the keystone container, so it can't use it. In the keystone logs (/var/kolla/keystone/keystone.log) there is an error message: 2025-01-15 08:36:04.477 1084 ERROR keystone.server.flask.request_processing.middleware.auth_context OSError: tls_cacertfile /etc/kolla/certificates/adserv.crt not found or is not a file However, my adserv.crt file has not changed, is valid, and is in /etc/kolla/certificates directory. What could have changed with the Dalmatian version? I tried to change parameters, but I can't find the solution. How should I proceed to make it work with TLS. I specify again that it works without TLS so the problem is really to use this certificate correctly, so to put it in the right place with the right parameter: tls_certificate or a new one? My lab use ubuntu 2204. Thanks a lot for your help Franck VEDEL

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Facing issue while creating image in Open stack using Barbican
by Shalini Srivastava 15 Jan '25

15 Jan '25

Hi Sir, I have created openstack image with the help of Barbican key-manager but it is not coming in active mode from past two days. It is still showing in queue mode only. Since i have searched a lot reagarding the same issue but could not find any solution to fix the same. Hope to hear from you soon. Thanks & Regards Shalini Srivastava Project Associate /प्रोजेक्ट एसोसिएट Centre for Development of Advanced Computing(C-DAC) / प्रगत संगणन विकास केन्द्र(सी-डैक) Tidel Park”, 8th Floor, “D” Block, (North &South) / “टाइडल पार्क”,8वीं मंजिल, “डी” ब्लॉक, (उत्तर और दक्षिण) No.4, Rajiv Gandhi Salai / नं.4, राजीव गांधी सलाई Taramani / तारामणि Chennai / चेन्नई – 600113 Ph.No.:044-22542226/27 Fax No.: 044-22542294 ------------------------------------------------------------------------------------------------------------ [ C-DAC is on Social-Media too. Kindly follow us at: Facebook: https://www.facebook.com/CDACINDIA & Twitter: @cdacindia ] This e-mail is for the sole use of the intended recipient(s) and may contain confidential and privileged information. If you are not the intended recipient, please contact the sender by reply e-mail and destroy all copies and the original message. Any unauthorized review, use, disclosure, dissemination, forwarding, printing or copying of this email is strictly prohibited and appropriate legal action will be taken. ------------------------------------------------------------------------------------------------------------

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