Friday, 2020-04-24

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slaweq#startmeeting neutron_drivers14:00
openstackMeeting started Fri Apr 24 14:00:21 2020 UTC and is due to finish in 60 minutes.  The chair is slaweq. Information about MeetBot at http://wiki.debian.org/MeetBot.14:00
openstackUseful Commands: #action #agreed #help #info #idea #link #topic #startvote.14:00
*** openstack changes topic to " (Meeting topic: neutron_drivers)"14:00
openstackThe meeting name has been set to 'neutron_drivers'14:00
mlavalleo/14:00
njohnstono/14:00
yamamotohi14:00
slaweqGood Morning/Afternoon/Evening :)14:00
haleybhi14:00
slaweqbefore we start, short announcement14:01
slaweqtoday ussuri-rc1 was releases for neutron14:01
slaweqso we have stable/ussuri branches created already14:02
slaweqif we will need anything to get there before GA, we will have to backport14:02
slaweqend of announcement :)14:02
slaweqlet's wait 2-3 more minutes for amotoki14:03
slaweqand we will start14:03
ralonsohhi14:04
slaweqok, lets start14:05
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slaweq#topic RFEs14:05
*** openstack changes topic to "RFEs (Meeting topic: neutron_drivers)"14:05
slaweqwe have one RFE for today14:05
slaweqhttps://bugs.launchpad.net/neutron/+bug/161620814:05
openstackLaunchpad bug 1616208 in neutron "[RFE] Support creating a subnet without an allocation pool" [Wishlist,Confirmed]14:05
slaweqit's an old rfe but seems that it's still not implemented, and owner of it is still interested in doing that14:06
mlavalleis he going to implement it?14:07
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slaweqmlavalle: I know only as much as is in his last comment14:07
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slaweqbut if he don't have time to implement that, I can spend some time on it if needed14:08
slaweqit seems for me that this is pretty simple modification of our API14:09
slaweqas Neutron already supports empty allocation pools if You will do PUT to remove any pool which was created for subnet14:10
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* haleyb wonders if he was disconnected14:18
mlavallewho, slaweq ?14:18
ralonsohI thought the same14:18
haleybit's just been 8 minutes14:18
slaweqno, I'm still here14:18
slaweqbut I'm waiting for any responses to what I wrote :)14:19
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haleybthe API supports an [] so i'm ok with the change to the client, and i guess whatever fallout there is where the server code isn't expecting it maybe14:20
njohnstonI have no problem with this14:21
slaweqhaleyb: we will need to add some tempest tests to cover that but I think it shouldn't be really an issue :)14:21
haleybslaweq: sounds good to me14:22
ralonsoh(now we can create a subnet /31 --> this won't create an allocation pool, but then will fail assigning an IP)14:22
slaweqralonsoh: but I think the issue of this failure is slightly different than what this rfe is trying to solve/change14:23
ralonsohyes, agree14:23
slaweqand IIRC bcafarel was going to report and fix issue with /31 subnets14:24
mlavalleI am also ok with it14:26
bcafarelactually there is already old bug about it https://bugs.launchpad.net/neutron/+bug/158092714:26
openstackLaunchpad bug 1580927 in neutron "spans beyond the subnet reported incorrectly in ipam" [Low,In progress] - Assigned to Tyler Britten (9-me-9)14:26
ralonsohwelcome to Mitaka cycle!14:27
bcafarelcurrently there is no allocation pool for /31 as they are not properly handled in code (fun fact /32 have one properly filled)14:27
bcafarelback to the future :)14:27
slaweq:)14:27
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slaweqyamamoto: any thoughts about such API/client change to allow None or [] as allocation pool for subnets in POST?14:28
yamamoto[] has a different meaning already, doesn't it?14:29
slaweqI think so, that why I said None or [] because it has to be checked to be sure14:29
slaweqbut probably we will need to use None as new value14:30
yamamotoi'm fine with the rfe as far as the api change will be backward compatible14:30
slaweqok14:30
slaweqthx14:30
yamamotoi guess the no_allocation_pools approach in the proposed patch is safer14:30
slaweqbut that's for client's side, right?14:31
mlavallehttps://review.opendev.org/#/c/433234/14:31
ralonsohso the idea is to add a new attribute? no_allocation_pools14:35
ralonsohis that the idea?14:35
ralonsohand in the DB14:35
slaweqI'm not sure if that is something what we really need14:36
slaweqand for sure not for PUT14:36
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slaweqas this should IMO just tell server to not create allocation pool for subnet at all14:36
slaweqin PUT You can already do that by sending [] in allocation_pool IIUC comments to this RFE14:37
haleybhttps://docs.openstack.org/api-ref/network/v2/?expanded=create-subnet-detail#subnets says "allocation_pools (Optional)"14:38
slaweqhaleyb: yes14:38
slaweqand docs says "If allocation_pools are not specified, OpenStack Networking automatically allocates pools for covering all IP addresses in the CIDR"14:38
slaweqIIUC this rfe is about adding some option to tell neutron-server "don't create this pool with whole CIDR"14:39
haleybah, right, the API doesn't know we don't want that even when passing [] I guess?14:40
slaweqthat's my understanding of this RFE at least14:41
haleybalthough "not specified" != []14:41
slaweqyes, I just tried14:44
slaweqhttp://paste.openstack.org/show/792669/14:45
slaweqand when I sent None as "allocation_pools" I got error BadRequest14:46
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slaweqso are we all fine to add possibility to send None as allocation_pools in POST to tell neutron to not create any allocation pool for this subnet?14:48
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slaweqIMO that's the main goal of this RFE14:49
yamamotodo you mean null?14:49
njohnstonyes I am good with that14:50
haleybis it None or [] ?  since a PUT with [] works i would think the POST with it should do the same thing?14:50
slaweqyamamoto: yes14:50
njohnston+1 for null14:51
slaweqhaleyb: but changing to [] to not create any pool wouldn't be backward compatible14:51
slaweqso I think that we should left it as it is now14:51
slaweqand add null to explicity say "I don't want allocation pools"14:51
njohnstonright14:52
yamamotoi'm ok with either ways (null or a new attribute)14:52
haleybi get it, just stinks that being explicit with [] doesn't work, but saying null gets you []14:53
slaweqhaleyb: I see Your point14:53
slaweqand it would be better to do it Your way14:53
slaweqbut we have to be backward compatible :/14:54
haleybbut then we break backwards-compat?14:54
ralonsohhaleyb, agree but we should keep [] current behaviour, I think so14:54
mlavalleyes14:54
haleybwho wants api/v3, we can fix all the bugz :)14:55
ralonsohhehehe14:55
slaweqhaleyb: :)14:55
slaweqor microversioning :P14:56
haleybi'm fine will null, it just gets back at last week's meeting where the info on the POST != the info on the GET wrt security groups14:56
haleybso +1 from me since we're running out of time14:57
njohnston+114:58
ralonsoh+1 to null14:58
slaweqmlavalle: You ok with it too?14:58
mlavalleyes14:59
slaweqok, thx for all comments14:59
slaweqI will mark this RFE as approved14:59
slaweqhave a great weekend14:59
mlavalleo/14:59
slaweqand see You all next week14:59
njohnstono/14:59
slaweqahh, one thing14:59
slaweqnext week is 1st of May and it's public holiday in Poland14:59
slaweqso I'm going to cancel this meeting15:00
slaweqsee You in 2 weeks on drivers meeting than :)15:00
slaweq*then15:00
ralonsohsee you then!15:00
slaweq#endmeeting15:00
*** openstack changes topic to "OpenStack Meetings || https://wiki.openstack.org/wiki/Meetings/"15:00
openstackMeeting ended Fri Apr 24 15:00:28 2020 UTC.  Information about MeetBot at http://wiki.debian.org/MeetBot . (v 0.1.4)15:00
openstackMinutes:        http://eavesdrop.openstack.org/meetings/neutron_drivers/2020/neutron_drivers.2020-04-24-14.00.html15:00
slaweqo/15:00
yamamotogood night15:00
openstackMinutes (text): http://eavesdrop.openstack.org/meetings/neutron_drivers/2020/neutron_drivers.2020-04-24-14.00.txt15:00
openstackLog:            http://eavesdrop.openstack.org/meetings/neutron_drivers/2020/neutron_drivers.2020-04-24-14.00.log.html15:00
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