Tuesday, 2020-10-13

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openstackgerritzhanghao proposed openstack/nova master: Fix virsh domifstat to get vhostuser vif statistics  https://review.opendev.org/75744801:02
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openstackgerritzhanghao proposed openstack/nova master: Fix virsh domifstat to get vhostuser vif statistics  https://review.opendev.org/75744807:18
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openstackgerritJorhson Deng proposed openstack/nova master: add task state for attach volume and detach volume  https://review.opendev.org/75425808:30
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lyarwoodthis might be the 4am baby feed but shouldn't we be able to run individual func tests using `tox -e functional $path.to.test.file` ?09:37
lyarwoodERROR: InvocationError for command /home/lyarwood/redhat/devel/src/openstack/nova/.tox/functional/bin/stestr --test-path=./nova/tests/functional run nova.tests.functional.regressions.bug_az_vol09:37
lyarwoodis what I'm getting, did I miss a memo or is there likely something wrong in the test itself?09:38
lyarwoodah wait, the filename needs to be test_09:38
* lyarwood throws keyboard out of the window09:39
gibilyarwood: don't be too hard on yourself (and the keyboard)09:39
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lyarwoodgibi: ^_^09:40
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openstackgerritRodrigo Barbieri proposed openstack/nova stable/train: Allow tap interface with multiqueue  https://review.opendev.org/75787014:06
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mnasersean-k-mooney: have you played around with sriov + mlx cards?14:32
mnaseri'm having instance creation failures with errors like this: `group 13 is not viable\nPlease ensure all devices within the iommu_group are bound to their vfio bus driver.`14:32
sean-k-mooneymnaser: stephenfin has they are more work then intel14:32
sean-k-mooneymnaser: both prots on the same physical card i think are in the same iommue group14:33
sean-k-mooneyyou can check that with sysfs14:33
sean-k-mooneymnaser:you need to have both port bound to the same driver14:33
mnasersean-k-mooney: not sure i follow, but, it seems like they are all in group 13 according to `/sys/kernel/iommu_groups/`14:35
mnaser qemu-system-x86_64: -device vfio-pci,host=0000:41:00.5,id=hostdev0,bus=pci.0,addr=0x4: vfio 0000:41:00.5: group 13 is not viable\nPlease ensure all devices within the iommu_group are bound to their vfio bus driver.14:36
mnaseri wonder if i need to setup vfio stuff, i've mostly only done that for pci passthrough but not sriov14:37
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openstackgerritRodrigo Barbieri proposed openstack/nova stable/stein: Allow tap interface with multiqueue  https://review.opendev.org/75788614:58
sean-k-mooneymnaser: if its a two port card both port will need to be bound to vfio-pci14:59
sean-k-mooneylibvirt can somethimes handel this for you but it gets complicated when you have multipel ports on teh same card14:59
sean-k-mooneyin somecase each physical port will get its own iommu group15:00
sean-k-mooneyon oder hardware it does not15:00
sean-k-mooneyolder15:00
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mnasersean-k-mooney: i think my issue was thta i should have been on https://docs.openstack.org/neutron/ussuri/admin/config-ovs-offload.html15:14
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sean-k-mooneyare you using hardware offloaed ovs15:21
sean-k-mooneyor just sriov with the sriov nic agent15:21
sean-k-mooneyyou can use it either way15:21
openstackgerritLee Yarwood proposed openstack/nova master: Add regression test for bug #1899649  https://review.opendev.org/75789315:25
openstackbug 1899649 in OpenStack Compute (nova) "Volume marked as available after a failure to build" [Undecided,New] https://launchpad.net/bugs/1899649 - Assigned to Lee Yarwood (lyarwood)15:25
openstackgerritLee Yarwood proposed openstack/nova master: compute: Don't detach volumes when RescheduledException raised without retry  https://review.opendev.org/75789415:25
lyarwoodstephenfin: ^ if you have time, going to spend some time on reviews of your stuff now btw.15:25
stephenfinlyarwood: sure15:25
stephenfinReminds me, I've to review a regression fix from gibi too15:26
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jrosserhas this sort of thing ever come up for nova? https://cloud.google.com/compute/docs/instances/verifying-instance-identity15:30
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lyarwoodnot that I'm aware of but it sounds like a valid feature for us to look into15:31
jrosseri have messed with a small POC for that today and can share it if there is interest15:31
lyarwoodjrosser: I'd think there would be ahead of the PTG15:32
lyarwoodjrosser: https://etherpad.opendev.org/p/nova-wallaby-ptg - feel free to add it to the list if you have time to discuss it there in a few weeks15:32
sean-k-mooneyjrosser: im not sure if that is realted to what nova-join does15:35
sean-k-mooneynova-join is not part of the nova project15:35
jrosserit's sort of like that15:35
sean-k-mooneyhttps://opendev.org/x/novajoin15:35
jrosserthats quite heavyweight though for something kind of simple15:36
sean-k-mooneythe google docs seam quite heavy too15:36
sean-k-mooneydo you have a simpel example15:36
jrosseryeah, let me paste something15:37
sean-k-mooneyadding some form of identidy verifcaiotn or signigure to the instance metadata for apps to check shoudl be doable im just not sure what woudl be required15:38
sean-k-mooneyis the instance uuid enough or does it need to be cyptograpicaly secure15:38
sean-k-mooneyactully it sound like adding a signiture to the metadata for an isntace might me enough?15:40
sean-k-mooney" Your applications can verify the signature against Google's public Oauth2 certificates to confirm the identity of the instance with which they have established a connection."15:40
openstackgerritGhanshyam Mann proposed openstack/nova master: DNM: testing tempest copy-image test  https://review.opendev.org/74254715:41
sean-k-mooneyif we were to sign the metadata for the instance you could retrive it before connecting and validate its correct15:41
jrosseri did this http://paste.openstack.org/show/798996/15:41
jrosserand i could validate the generated JWT against the public key after retrieving it from the metadata service15:41
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sean-k-mooneythe publick keey the user provided15:42
sean-k-mooneyfor the key pair for the instance15:42
jrosserthe cloud provider publishes the public key somewhere15:43
sean-k-mooneyoh you want to use a common one15:43
jrosserand the private key belongs to the compute service15:43
sean-k-mooneyya15:43
sean-k-mooneythat looks resonable15:43
sean-k-mooneyits not really intrusive its just anothe pice of metadata15:44
sean-k-mooneyand presuably a new config for the key15:44
jrosseri arrived at this looking at automated cert issuance15:44
jrosserthere are tools which will cut certs based on validating instance identity documents15:45
sean-k-mooneylets-encrypt-style15:45
sean-k-mooneywe have pyjwt in the upper-constriats file too15:45
mnasersean-k-mooney: hardware offloaded ovs is the goal15:45
sean-k-mooneyso while this might be a new reqruirement for nova it not a new one for openstack15:45
jrosserhttps://smallstep.com/blog/embarrassingly-easy-certificates-on-aws-azure-gcp/15:46
sean-k-mooneyjrosser: so ya i hitnk you sould almost do this as a specless blueprint if you bring it up at the ptg with that example15:46
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jrosserok, that would be cool15:46
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sean-k-mooneyoh what is smallstep15:47
jrosserwas wanting to gauge what folk thought, as i could do something similar with the dynamic vendor data but that didnt really feel like the right tool15:47
sean-k-mooneyjrosser:we might ask for a spec just an fyi15:47
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sean-k-mooneybut as presented this look almost trivaial enough to be a specless blueprint15:47
jrossersmallstep is quite neat actually, i use it here for a private ACME pki15:47
sean-k-mooneyill have to look into it15:48
sean-k-mooneycerts have always been a pain15:48
sean-k-mooneyto the point where i deployed k8s just to act as a cert ahority and allow me to expose things with lets encyrpt certs in the past15:48
sean-k-mooneynow im using traefik for that15:49
sean-k-mooneywhich reminds me i have to update my openstack redirect so that it force http to https15:50
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stephenfinlyarwood: done16:22
stephenfinlyarwood: some nits but nothing blocking16:22
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mnasersean-k-mooney: so far i have made it to the conclusion that my issue is that both vfs and pfs are all in the same iommu group, therefore is not possible to attach a single vf..17:31
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openstackgerritMerged openstack/nova master: Fix a hacking test  https://review.opendev.org/75471320:46
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