October 2024 - Users - Ovirt List Archives

Call for participation: Virtualization and Cloud infrastructure Room at FOSDEM 2025

by Piotr Kliczewski

We are excited to announce that the call for proposals is now open for the Virtualization and Cloud infrastructure devroom at the upcoming FOSDEM 2025, to be hosted on Sunday (Feb 2) 2025. This devroom is a collaborative effort, and is organized by dedicated folks from projects such as OpenStack, Xen Project, KubeVirt, QEMU, KVM, and Foreman. We invite everyone involved in these fields to submit your proposals by December 8th, 2024. About the Devroom The Virtualization & IaaS devroom will feature session topics such as open source hypervisors or virtual machine managers such as Xen Project, KVM, bhyve and VirtualBox as well as Infrastructure-as-a-Service projects such as KubeVirt, Apache CloudStack, OpenStack, QEMU and OpenNebula. This devroom will host presentations that focus on topics of shared interest, such as KVM; libvirt; shared storage; virtualized networking; cloud security; clustering and high availability; interfacing with multiple hypervisors; hyperconverged deployments; and scaling across hundreds or thousands of servers. Presentations in this devroom will be aimed at developers working on these platforms who are looking to collaborate and improve shared infrastructure or solve common problems. We seek topics that encourage dialog between projects and continued work post-FOSDEM. Important Dates Submission deadline: 8th December 2024 Acceptance notifications: 10th December 2024 Final schedule announcement: 15th December 2024 Devroom: 2nd February 2025 Submit Your Proposal All submissions must be made via the Pretalx event planning site[1]. It is a new submission system so you will need to create an account. If you submitted proposals for FOSDEM in previous years, you won’t be able to use your existing account. During submission please make sure to select Virtualization and Cloud infrastructure from the Track list. Please provide a meaningful abstract and description of your proposed session. Submission Guidelines We expect more proposals than we can possibly accept, so it is vitally important that you submit your proposal on or before the deadline. Late submissions are unlikely to be considered. All presentation slots are 30 minutes, with 20 minutes planned for presentations, and 10 minutes for Q&A. All presentations will be recorded and made available under Creative Commons licenses. In the Submission notes field, please indicate that you agree that your presentation will be licensed under the CC-By-SA-4.0 or CC-By-4.0 license and that you agree to have your presentation recorded. For example: "If my presentation is accepted for FOSDEM, I hereby agree to license all recordings, slides, and other associated materials under the Creative Commons Attribution Share-Alike 4.0 International License. Sincerely, <NAME>." In the Submission notes field, please also confirm that if your talk is accepted, you will be able to attend FOSDEM and deliver your presentation. We will not consider proposals from prospective speakers who are unsure whether they will be able to secure funds for travel and lodging to attend FOSDEM. (Sadly, we are not able to offer travel funding for prospective speakers.) Code of Conduct Following the release of the updated code of conduct for FOSDEM[3], we'd like to remind all speakers and attendees that all of the presentations and discussions in our devroom are held under the guidelines set in the CoC and we expect attendees, speakers, and volunteers to follow the CoC at all times. If you submit a proposal and it is accepted, you will be required to confirm that you accept the FOSDEM CoC. If you have any questions about the CoC or wish to have one of the devroom organizers review your presentation slides or any other content for CoC compliance, please email us and we will do our best to assist you. Questions? If you have any questions about this devroom, please send your questions to our devroom mailing list. You can also subscribe to the list to receive updates about important dates, session announcements, and to connect with other attendees. See you all at FOSDEM! [1] https://pretalx.fosdem.org/fosdem-2025/cfp [2] virtualization-devroom-manager at fosdem.org [3] https://fosdem.org/2025/practical/conduct/

3 weeks, 2 days

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IPv4 vs IPv6 vs dual-stack

by Diggy Mc

With respect to oVirt hosts and the hosted-engine, what are the pros and cons of using just IPv4, or just IPv6, or using both?

3 weeks, 2 days

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Re: [External] : Lost console access to VMs after updating

by Simon Coter

Malcom, here the solution to your actual issue: Replace the following file with the attached one: # /etc/httpd/conf.d/olvm45-security-fixes.conf The final fix will be there with release ending with .23. Restart ovirt-engine and httpd services: # systemctl daemon-reload # systemctl restart ovirt-engine # systemctl restart httpd Simon On Oct 14, 2024, at 11:04 PM, Marcos Sungaila via Users <users(a)ovirt.org> wrote: Hi Malcolm, Select the Cluster line at Compute > Cluster and edit it. Then check if in the Console left tab, the Enable VNC Encryption is set. If enabled, you will need to disable it, and using the web UI, put a host into Maintenance mode, then click the Installation button > Reinstall. Marcos -----Original Message----- From: malcolm.strydom(a)pacxa.com <malcolm.strydom(a)pacxa.com> Sent: Monday, October 14, 2024 11:44 AM To: users(a)ovirt.org Subject: [External] : [ovirt-users] Lost console access to VMs after updating We have a couple OLVM instances. Completely separate with their own managers (ovirt-engine). One is lab and one is prod. I updated the lab engine from 4.5.4-1.0.31.el8 to 4.5.5-1.22.el8 and as soon as that was done and it rebooted I no longer can open VM consoles. This was the update process followed: https://docs.oracle.com/en/virtualization/oracle-linux-virtualization-man... In troubleshooting I checked for the SASL db which appears to be /etc/libvirt/passwd.db # grep sasldb_path /etc/sasl2/libvirt.conf sasldb_path: /etc/libvirt/passwd.db I can verify the vdsm user and realm is in there # sasldblistusers2 -f /etc/libvirt/passwd.db vdsm@ovirt: userPassword We are using noVNC in the browser and when I click on a vm and then console it opens a new window and just has the "connecting" message. I switched to Native VNC client and downloaded the console.vv file which looks normal inside and when I try and open it with vnc viewer or remote-viewer etc. I get a window that connects, authenticates with the password found in the console.vv but then presented with a display that says "Guest has not initialized the display (yet)." Thinking perhaps I need to update the KVM hosts too I proceeded with the update document listed above but even with the hosts updated nothing has changed. If I tail /var/log/messages when opening a console connection all I see is this: Oct 14 10:33:52 olvm2 kernel: sd 6:0:0:1: Warning! Received an indication that the LUN reached a thin provisioning soft threshold. Oct 14 10:34:41 olvm2 saslpasswd2[55701]: error deleting entry from sasldb: BDB0073 DB_NOTFOUND: No matching key/data pair found Oct 14 10:34:41 olvm2 saslpasswd2[55701]: error deleting entry from sasldb: BDB0073 DB_NOTFOUND: No matching key/data pair found Oct 14 10:34:41 olvm2 saslpasswd2[55701]: error deleting entry from sasldb: BDB0073 DB_NOTFOUND: No matching key/data pair found Oct 14 10:34:41 olvm2 saslpasswd2[55701]: error deleting entry from sasldb: BDB0073 DB_NOTFOUND: No matching key/data pair found I checked the production OLVM cluster which has not been updated and has a properly functioning vnc consoles and it produces the exact same errors shown above in the logs when opening a console. So I don't think that error is the cause if the issue although likely something that needs to be fixed. If I check the VM guest log when opening a console I get nothing. tail -f /var/log/libvirt/qemu/<vm_hostname>.log Has anyone else run into this issue when updating? Any ideas on what more I can look at or troubleshoot? Thanks Malcolm _______________________________________________ Users mailing list -- users(a)ovirt.org To unsubscribe send an email to users-leave(a)ovirt.org Privacy Statement: https://urldefense.com/v3/__https://www.ovirt.org/privacy-policy.html__;!... oVirt Code of Conduct: https://urldefense.com/v3/__https://www.ovirt.org/community/about/communi... List Archives: https://urldefense.com/v3/__https://lists.ovirt.org/archives/list/users@o... _______________________________________________ Users mailing list -- users(a)ovirt.org To unsubscribe send an email to users-leave(a)ovirt.org Privacy Statement: https://urldefense.com/v3/__https://www.ovirt.org/privacy-policy.html__;!... oVirt Code of Conduct: https://urldefense.com/v3/__https://www.ovirt.org/community/about/communi... List Archives: https://urldefense.com/v3/__https://lists.ovirt.org/archives/list/users@o...

3 weeks, 2 days

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Add existing KVM host to oVirt

by gabrielappugliese＠gmail.com

Hello, I just installed oVirt as a standalone Manager with local databases and i deployed it on a VM thats inside the KVM host i want to add to it. I get its not best practoce but its for a personal lab and i setup ssh to only allow root from the vm where oVirt is installed...anyways i attempted to add the host but its failing with this error ... No package ovirt-hosted-engine-setup available ... to make "ovirt-hosted-engine-setup" available im assuming i have to enable the repositories (Following this guide https://ovirt.org/download/install_on_rhel.html) to make it available but will doing all that allow me to add the kvm host which already has VMs deployed on it able to be managed by ovirt? would this help me achieve what im trying todo? https://ovirt.org/documentation/installing_ovirt_as_a_standalone_manager_... Thanks in advance

3 weeks, 5 days

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Re: [External] : open v-switch woes

by Tim Walsh

Yes, not only a desire to replicate the functionality of V-Switches on VM-Ware, but also to have an isolated test environment. Create a virtual firewall (using Opensense or pfSense or something) and create VMs behind the firewall that can all talk to each other, but the firewall only passes out the application traffic (for example a web app on Nginx, or Remote Desktop to the private Environment). Microsoft Hyper-V has "private" and "internal" switches that can be set up, (and thats the case on either a standalone or a cluster) so I figured oVirt must have something similar if not the same. these may or may not necessarily be tagged to a VLAN on a physical switch. Thanks, Tim ________________________________ From: Marcos Sungaila <marcos.sungaila(a)oracle.com> Sent: Thursday, October 24, 2024 4:22 PM To: Tim Walsh <mr_tim_walsh(a)hotmail.com>; users(a)ovirt.org <users(a)ovirt.org> Subject: RE: [External] : [ovirt-users] open v-switch woes Hey Tim, Deploying an OVN-enabled cluster is not that trivial. There are many caveats to make it run. Is there any special use case you need to address to use OVS/OVN? Marcos From: Tim Walsh <mr_tim_walsh(a)hotmail.com> Sent: Thursday, October 24, 2024 12:28 AM To: users(a)ovirt.org Subject: [External] : [ovirt-users] open v-switch woes Hey community, I'm trying to get open v-switch set up to work like it does in VMware. I am running Rocky Linux 8.9 and oVirt 4.5.5 (el8) I got the repos but online feedback recommends installing openvswitch, and ovn-northd, ovn-central and ovn-host I got openvswitch installed, but the other three: ovn-northd, ovn-central and ovn-host seemt o be elusive even after adding the CentOS-Advanced-Virtualization.repo and uipdating all "CentOS-" repost to point to "vault" instead of "mirrorlist" Can someo0ne help me with what I'm missing? I've tried Bing CoPilot and ChatGPT LOL but they say add that repo and install those packages. Thanks, Tim

3 weeks, 5 days

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Re: [External] : I did a fresh install but what is username and password?

by himalaje2022＠gmail.com

Hello. I did installed "ovirt-node-ng-installer-latest-el9.iso" and that is all. I'm able to login now to Cockpit on port 9090 but only when I manualy set ip adress in form. https://{ip_address}:9090/={ip_address}/system There is no way to login normaly. When I just try https://{ip_address}:9090 then it want to login to Server: some-hostname-ovirt and it doesn't work. I should do reverse engineering to understand why it doesn't work but I don't have time for it at the moment. In my configuration I need to use specific VLAN in network configuration. Maybe that is why there is no way to login. I have never used Keycloak. I'm not new in Linux world but I'm a noob in RHEL world. I would prefer to use Proxmox instead of trying to configure oVirt but it will not work with MegaRaid unless I will reflash the controller. Debian have huge problems with Praid CP400i and my old server still have some potential to be working as VM host. Is there any tutorial what to do in oVirt? Maybe some oVirt for absolute dummies? Is oVirt the kind of system that needs to be carved in marble? I'm not able to do advanced stuff on it now. It will take me a lot of time to get to this point. At the moment I'm interested in creation basic server for VM to see will it work fine but it seams it is not so easy to start with.

3 weeks, 6 days

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Re: Preparing to issue an oVirt release post Red Hat offboarding

by Nathanaël Blanchet

Hello what about the implication of team.blue which announced a job advert to continue to develop ovirt? It has been published in July but is not available anymore. It is sad to say that without professional dev such a big project can't really be long-term. Really great project but to complex to be maintained by volunteers on their free time. Le 18 oct. 2024 10:55, Sandro Bonazzola <sbonazzo(a)redhat.com> a écrit : Hi, Oracle fixed CVE-2024-7259 ( https://github.com/oVirt/ovirt-engine/security/advisories/GHSA-8xjm-j7fq-... ) in oVirt Engine and would be nice to issue an oVirt Engine release including the fix. As the current master also includes support for new cluster level 4.8, VDSM needs to be released as well providing cluster level 4.8. As you know, Red Hat offboarded the project and as such there are no more people officially assigned to the project from the company, despite a few of the historical developers still spend some of their free time helping out. I can help building the packages and getting them out on my free time but I have no capacity for doing any testing or documentation updates or release notes related to this release. Last oVirt Engine (4.5.6) was also released last February without any formal release announce. Any volunteer to look into differences between current master and current stable release and see if anything else needs to be released other than ovirt-engine and vdsm? Any volunteer to write release notes and update the website accordingly? Any volunteer to run ovirt-system-test on https://github.com/oVirt/ovirt-engine/pull/970 and https://github.com/oVirt/vdsm/pull/422 as OST doesn't run anymore on GitHub? Regards, -- Sandro Bonazzola _______________________________________________ Users mailing list -- users(a)ovirt.org To unsubscribe send an email to users-leave(a)ovirt.org Privacy Statement: https://www.ovirt.org/privacy-policy.html oVirt Code of Conduct: https://www.ovirt.org/community/about/community-guidelines/ List Archives: https://lists.ovirt.org/archives/list/users@ovirt.org/message/SEWUGOUXI6D... Le 18 oct. 2024 10:55, Sandro Bonazzola <sbonazzo(a)redhat.com> a écrit : Hi, Oracle fixed CVE-2024-7259 ( https://github.com/oVirt/ovirt-engine/security/advisories/GHSA-8xjm-j7fq-... ) in oVirt Engine and would be nice to issue an oVirt Engine release including the fix. As the current master also includes support for new cluster level 4.8, VDSM needs to be released as well providing cluster level 4.8. As you know, Red Hat offboarded the project and as such there are no more people officially assigned to the project from the company, despite a few of the historical developers still spend some of their free time helping out. I can help building the packages and getting them out on my free time but I have no capacity for doing any testing or documentation updates or release notes related to this release. Last oVirt Engine (4.5.6) was also released last February without any formal release announce. Any volunteer to look into differences between current master and current stable release and see if anything else needs to be released other than ovirt-engine and vdsm? Any volunteer to write release notes and update the website accordingly? Any volunteer to run ovirt-system-test on https://github.com/oVirt/ovirt-engine/pull/970 and https://github.com/oVirt/vdsm/pull/422 as OST doesn't run anymore on GitHub? Regards, -- Sandro Bonazzola _______________________________________________ Users mailing list -- users(a)ovirt.org To unsubscribe send an email to users-leave(a)ovirt.org Privacy Statement: https://www.ovirt.org/privacy-policy.html oVirt Code of Conduct: https://www.ovirt.org/community/about/community-guidelines/ List Archives: https://lists.ovirt.org/archives/list/users@ovirt.org/message/SEWUGOUXI6D...

3 weeks, 6 days

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Re: [External] : open v-switch woes

by Marcos Sungaila

Hey Tim, Deploying an OVN-enabled cluster is not that trivial. There are many caveats to make it run. Is there any special use case you need to address to use OVS/OVN? Marcos From: Tim Walsh <mr_tim_walsh(a)hotmail.com> Sent: Thursday, October 24, 2024 12:28 AM To: users(a)ovirt.org Subject: [External] : [ovirt-users] open v-switch woes Hey community, I'm trying to get open v-switch set up to work like it does in VMware. I am running Rocky Linux 8.9 and oVirt 4.5.5 (el8) I got the repos but online feedback recommends installing openvswitch, and ovn-northd, ovn-central and ovn-host I got openvswitch installed, but the other three: ovn-northd, ovn-central and ovn-host seemt o be elusive even after adding the CentOS-Advanced-Virtualization.repo and uipdating all "CentOS-" repost to point to "vault" instead of "mirrorlist" Can someo0ne help me with what I'm missing? I've tried Bing CoPilot and ChatGPT LOL but they say add that repo and install those packages. Thanks, Tim

3 weeks, 6 days

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Importing Storage Domain's Export from one Data Center to Another

by calebmibaker＠outlook.com

Is it possible to perform disaster recovery importing a Storage Domain's Export from one Data Center to another in a manually fashion without Ansible? I'm trying to import Data Center 1's Storage Domain Export by cloning the storage domain export and importing it into Data Center 2's environment through IP address & NFS name within the oVirt's web portal. However, I receive this error message: there is no storage domain under the specified path. Below is what I have done to tried to troubleshoot the issue. After looking into the documentation, I haven't seen information for this method. Should I consider another option? Is there a preferred way of testing DR within an environment? -I have detach both of the export storage domains from both data centers before importing the cloned export. -Changing import settings -I have adjusted the metadata information within the cloned export after mounting it and reviewing the logs.

3 weeks, 6 days

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Migration of oVirt Engine and Hosts from CentOS 8 to CentOS 9

by narutospinal＠gmail.com

Dear, I would like help with the following question: I need to migrate my oVirt Engine and oVirt Hosts from CentOS 8 to CentOS 9. My plan is to back up the database using the engine-backup command. For example: engine-backup --mode=backup --file=db_backup My next step will be to install the oVirt Engine on CentOS 9 and restore the backup. For example: engine-backup --mode=restore --file=db_backup --log=backup_restore.log --change-db-credentials --db-host=didi-lap --db-user=engine --db-password=your_password --db-name=engine Finally, I will add a new oVirt Host with CentOS 9 and migrate the virtual machines. Are there any considerations I should be aware of? Could you please guide me?

3 weeks, 6 days

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