February 2024 - openstack-discuss

Accessing virsh in openstack wallaby | tripleo
by Swogat Pradhan 24 Mar '24

24 Mar '24

Hi, Can someone please tell me how can i access the virsh utility on the compute node on openstack wallaby? Previously we used nova_libvirt but in wallaby there are multiple containers and i am unable to use virsh utility to edit my domain.xml file. List of containers: [root@dcn01-hci-2 ~]# podman ps | grep nova 10d981158842 172.25.201.68:8787/tripleomaster/openstack-nova-libvirt:current-tripleo kolla_start 2 months ago Up 2 months ago nova_virtlogd_wrapper e91667516afc 172.25.201.68:8787/tripleomaster/openstack-nova-libvirt:current-tripleo kolla_start 2 months ago Up 2 months ago nova_virtsecretd a4b07fe0e833 172.25.201.68:8787/tripleomaster/openstack-nova-libvirt:current-tripleo kolla_start 2 months ago Up 2 months ago nova_virtnodedevd d7e1db393e9c 172.25.201.68:8787/tripleomaster/openstack-nova-libvirt:current-tripleo kolla_start 2 months ago Up 2 months ago nova_virtstoraged 5308a171793e 172.25.201.68:8787/tripleomaster/openstack-nova-libvirt:current-tripleo kolla_start 2 months ago Up 2 months ago nova_virtqemud f490a6249ba1 172.25.201.68:8787/tripleomaster/openstack-nova-libvirt:current-tripleo kolla_start 2 months ago Up 6 weeks ago nova_virtproxyd ab0441e56957 172.25.201.68:8787/tripleomaster/openstack-nova-compute:current-tripleo kolla_start 2 months ago Up 2 months ago (healthy) nova_migration_target f35fbba5b690 172.25.201.68:8787/tripleomaster/openstack-nova-compute:current-tripleo kolla_start 2 months ago Up 6 weeks ago (unhealthy) nova_compute 82bc01993106 172.25.201.68:8787/tripleomaster/openstack-nova-libvirt:current-tripleo /usr/sbin/virtlog... 2 months ago Up 2 months ago Can someone please suggest how I can i edit an instance xml file in this setup? With regards, Swogat Pradhan

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[swift] Can I use oslo.log / oslo.config in swift? Can we make Swift behave like the rest of OpenStack?
by Thomas Goirand 20 Mar '24

20 Mar '24

Hi, Because we had some issues with a bad rebalance in production (we didn't loose any data, but some drives went full...), I attempted to implement the Swift mitigation to prevent disk full scenarios. I found that what upstream recommends [1] is a script that's written in Python 2, and that wouldn't work at all: it's not only very old, it's also a very partial implementation. So I wrote this: https://review.opendev.org/c/openstack/swift/+/907523 But then, I was told (thanks for the review!) that I shouldn't be using oslo.config and/or oslo.log, as other parts of Swift don't do that. I do understand that the rest of Swift is like this, and therefore, the review comment is probably right. However... Back in the days, I would have understood why things would have been written that way: the Oslo libs were young, and not available everywhere, and it was kind of a good idea not to use them. But now, fast forward in 2024, I found that Swift behaving differently from the rest of OpenStack is more a problem than a feature. It's also very frustrating to use the old way with the config_parser, which can't auto-generate the config file and so on. So I am wondering: - is it still the case, that I shouldn't use oslo.config / oslo.log when adding a patch in Swift? - can we revisit this, and convert swift to oslo.config generated config files, and PBR shell-script entry points instead of binary simply dropped into the toplevel bin folder? Can we make swift smarter and behave like the rest of OpenStack? :) Cheers, Thomas Goirand (zigo) [1] https://docs.openstack.org/swift/latest/admin_guide.html#preventing-disk-fu…

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Use Openstack SDK for Swift
by Albert Braden 20 Mar '24

20 Mar '24

I'm writing a script that will use admin credentials to check user projects for containers. I'm already doing something similar for non-swift accounts, doing things like: cloud.network.networks(project_id=projectid): I read here about the Object SDK: https://docs.openstack.org/openstacksdk/latest/user/guides/object_store.html And I tried this: cloud.object_store.containers(project_id=projectid): But I get an error: Invalid query params: project_id I read the Object SDK document here and it doesn't seem to say anything about how to specify a project: https://docs.openstack.org/openstacksdk/latest/user/proxies/object_store.ht… But when I read the Swift API document, I see that I can use "/v1/{account}/{container}", so I'm guessing that there must be a way to do it via the SDK. https://docs.openstack.org/api-ref/object-store/#show-container-details-and… Is it possible to specify the project in an Object SDK call, or do I need to use the old python API for this?

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[Freezer] Is Freezer dead?
by pi3.14＠tuta.io 19 Mar '24

19 Mar '24

Hi folks, is Freezer still supported? I don't see any real development going on with it. Is it recommended to use in a production Cloud environment? Are there other free and open source alternatives to Freezer? Thanks Roby

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[swift] Increase part power on account/container ring
by Thiago De Moraes Teixeira 13 Mar '24

13 Mar '24

Morning, Here we have a cluster with Accounts/Containers ring with part power 8 and our Objects ring with part power 20 (builted later). Now we want to migrate the 'old' Accounts/Containers ring to a new one, with higher part power, like 20. Is there a better way to do this? I'm doing some crazy tests with SAIO and multiples storage nodes, based in build a new ring with part power 20 and just swap the old files (account/container.ring.gz) with the new ones and let the replicators do their jobs, moving *.db files to their new home partition. Until today these tests worked fine, but I don't know how to do it on a large scale, with some terabytes of data. Just wondering about some ways to do that :) And before/after this change, is there any command in swift that i can audit this entire process, ensuring that cluster data remains the same? Thanks! -- _‘Esta mensagem é direcionada apenas para os endereços constantes no cabeçalho inicial. Se você não está listado nos endereços constantes no cabeçalho, pedimos-lhe que desconsidere completamente o conteúdo dessa mensagem e cuja cópia, encaminhamento e/ou execução das ações citadas estão imediatamente anuladas e proibidas’._ * **‘Apesar do Magazine Luiza tomar todas as precauções razoáveis para assegurar que nenhum vírus esteja presente nesse e-mail, a empresa não poderá aceitar a responsabilidade por quaisquer perdas ou danos causados por esse e-mail ou por seus anexos’.*

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[neutron][horizon] disable permission to release floating ip for non-admin users
by Satish Patel 09 Mar '24

09 Mar '24

Folks, I want to disable permission or the horizon button or whatever best way to not allow end users to "Release floating IP" because I want them to stick with assigned IP and not releasing them because of some regulatory process. Not sure what is the best way to have this level of control. I found neutron policy delete_floatingip: but is this the correct way to implement this policy? OR Does Horizon have some level of ACL to remove buttons or disable it? Looking for advice or clues. Thanks!

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[heat][monasca][sahara][senlin] Features dependent on inactive projects
by Takashi Kajinami 09 Mar '24

09 Mar '24

Hello, As you know, some of the OpenStack projects were marked inactive during this cycle. There are still on-going discussions but from my view these are very likely excluded from the upcoming 2024.1 release and it's unclear yet if any of these projects will be kept. Currently heat provides features integrated with some of the inactive projects (Monasca, Sahara and Senlin), and we have to decide how we deal with these features[1]. The main concern is that we can't maintain the features for the inactive projects, and IMO we should retire these features if these inactive projects are abandoned or are no longer maintained in the consistent way with the other active projects. Based on the current situation, I'd propose the following steps for upcoming cycles. - Deprecate the features dependent on inactive projects in 2023.2 release - Note that we have to remove these features directly during this cycle in case any problems related to these project block the upcoming heat release. - Remove these features in 2024.1 release unless we are sure that these projects are kept maintained as active projects in the openstack namespace, with following the global release cycle. Please let me know if you have any concern about the proposed plan. If I hear no objections then I'll propose patches for deprecation. Thank you, Takashi Kajinami irc: tkajinam [1] I've submitted a series of patches to remove these features and these would give a clear view about the features affected. https://review.opendev.org/q/topic:%22inactive-project-removal%22+project:o…

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[neutron] Is the vxlan(overlay) network a Provider network or a self-service network
by 韩光宇 08 Mar '24

08 Mar '24

Hi, In neutron install doc[1], I got the concept of Provider network and Self-service network. And I got that: - Provider network bridges virtual networks to physical networks and relies on physical network infrastructure for layer-3 (routing) services - Self-service network routes virtual networks to physical networks using Network Address Translation (NAT) So I understand: Flat/Vlan network are Provide network and vxlan/gre network are Self-service network. But, in openstack cmd, I found that all network types are classified as provider network types. ``` openstack network create --help ... --provider-network-type <provider-network-type> The physical mechanism by which the virtual network is implemented. For example: flat, geneve, gre, local, vlan, vxlan. ``` I am confused, why do vxlan and gre appear in the **provider network type**? According to the installation doc[1], overlay networks should not all be self-service networks Or is the provider network in cmd not the same as the provider network in the installation document, the provider network here is only different from the tenant network? Can someone help me distinguish between these concepts, or suggest questions that I can read: why vxlan is provider network I will appreciate for any help. Best wishes, Han Guangyu [1] https://docs.openstack.org/neutron/latest/install/controller-install-obs.ht…

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[cinder][glance][nova][telemetry][monasca][oslo][vmware] Can we deprecate(and remove) VMWare support ?
by Takashi Kajinami 07 Mar '24

07 Mar '24

Hi all, As you might know, some of the OpenStack projects currently support usage of VMWare component. However recently the VMware virt driver in nova was marked experimental in 2023.2 release [1] and it has been discussed that the driver will be removed in 2023.2 release[2], after deprecation is backported to 2023.1. (Please someone from nova team correct me if I'm wrong) So my current question is; Does it make sense to deprecate all of the features to support VMWare component ? My understanding is that these features were added to be used along with VMWare virt driver in nova, but once the virt driver is removed this use case is voided. I'll list up the features within the discussion scope below. nova: VMWare virt driver (this is already experimental by [1]) cinder: VMware Storage Driver (vmdk) glance: VMWare Datastore (I proposed deprecating this in [3][4]) ceilometer: VMWare virt driver (this was deprecated by [5]) os-brick: VmdkConnector monasca-agent: vcenter collector (*1) oslo.vmware: the whole project NOTE: These features are found based on dependency on oslo.vmware but there can be a few not listed here. Outside of OpenStack's governance, there are two projects dependent on oslo.vmware, networking-vsphere and vmware-nsx but both of these look inactive. Because of SLURP, we have to complete deprecation during in 2024.1 release so that we can drop the feature right after 2024.1. If we fail then we have to maintain these features until 2025.1 (the features already deprecated can be removed earlier, though). So I'd like to get feedback and decision before deadline for 2024.1 Thank you, Takashi (*1) Monasca is now inactive so I doubt anyone would work on this topic before it is retired. [1] https://review.opendev.org/c/openstack/nova/+/863911 [2] https://review.opendev.org/c/openstack/nova/+/897017 [3] https://review.opendev.org/c/openstack/glance_store/+/893696 [4] https://lists.openstack.org/archives/list/openstack-discuss@lists.openstack… [5] https://review.opendev.org/c/openstack/ceilometer/+/894540

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[kolla][cinder][nfs] NFS backend error for volumes
by Satish Patel 07 Mar '24

07 Mar '24

Folks, I am configuring NFS for the cinder backend but somehow it doesn't go well. I am running kolla-ansible with the 2023.1 release. cinder.conf [DEFAULT] enabled_backends = volumes-ssd,volumes-nfs [volumes-nfs] volume_driver = cinder.volume.drivers.nfs.NfsDriver volume_backend_name = volumes-nfs nfs_shares_config = /etc/cinder/nfs_shares nfs_snapshot_support = True nas_secure_file_permissions = False nas_secure_file_operations = False Inside the cinder_volume docker container I can see it mounts NFS automatically and directory permissions is also cinder:cinder also I am able to write on NFS share also so it's not a permission issue also. $ docker exec -it cinder_volume mount | grep nfs 192.168.18.245:/volume1/NFS on /var/lib/cinder/mnt/1ec32c051aa5520a1ff679ce879da332 type nfs (rw,relatime,vers=3,rsize=131072,wsize=131072,namlen=255,hard,proto=tcp,timeo=600,retrans=2,sec=sys,mountaddr=192.168.18.245,mountvers=3,mountport=892,mountproto=udp,local_lock=none,addr=192.168.18.245) But service is still showing down. | cinder-volume | os-ctrl2@volumes-nfs | nova | enabled | down | 2024-02-28T04:13:11.000000 | In logs I am seeing these 3 lines but then no activity in logs even after restarting the container so that is very strange. 2024-02-28 04:13:12.995 153 ERROR os_brick.remotefs.remotefs [None req-6bcb8eab-6aa6-4c36-9a7a-ed673c39dcbc - - - - - -] Failed to mount 192.168.18.245:/volume1/NFS, reason: mount.nfs: Protocol not supported : oslo_concurrency.processutils.ProcessExecutionError: Unexpected error while running command. 2024-02-28 04:13:13.501 153 WARNING cinder.volume.drivers.nfs [None req-6bcb8eab-6aa6-4c36-9a7a-ed673c39dcbc - - - - - -] The NAS file permissions mode will be 666 (allowing other/world read & write access). This is considered an insecure NAS environment. Please see https://docs.openstack.org/cinder/latest/admin/blockstorage-nfs-backend.html for information on a secure NFS configuration. 2024-02-28 04:13:13.501 153 WARNING cinder.volume.drivers.nfs [None req-6bcb8eab-6aa6-4c36-9a7a-ed673c39dcbc - - - - - -] The NAS file operations will be run as root: allowing root level access at the storage backend. This is considered an insecure NAS environment. Please see https://docs.openstack.org/cinder/latest/admin/blockstorage-nfs-backend.html for information on a secure NAS configuration. Has anyone configured NFS and noticed any behavior?

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