Thursday, 2017-09-21

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rosmaita#startmeeting glance14:01
openstackMeeting started Thu Sep 21 14:01:48 2017 UTC and is due to finish in 60 minutes.  The chair is rosmaita. Information about MeetBot at http://wiki.debian.org/MeetBot.14:01
openstackUseful Commands: #action #agreed #help #info #idea #link #topic #startvote.14:01
*** openstack changes topic to " (Meeting topic: glance)"14:01
openstackThe meeting name has been set to 'glance'14:01
smcginniso/14:01
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jokke_o/14:02
abhishekko/14:02
rosmaitasorry, was looking at the latest comments on the glare patch14:02
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rosmaitahello everyone14:03
rosmaita#link https://etherpad.openstack.org/p/glance-team-meeting-agenda14:03
rosmaitaas always, there's the agenda ^^14:03
rosmaitanot many items, so here we go14:04
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rosmaita#topic updates14:04
*** openstack changes topic to "updates (Meeting topic: glance)"14:04
rosmaita#topic updates - roadmap14:04
*** openstack changes topic to "updates - roadmap (Meeting topic: glance)"14:04
rosmaitaour tentative queens roadmap is listed in the "spotlight links" on the agenda etherpad14:04
mfedosino/14:04
jokke_rosmaita: very handy14:05
rosmaita#link https://etherpad.openstack.org/p/glance-queens-ptg-roadmap14:05
rosmaitasorry, am having copy & paste problems14:05
rosmaitahi mike14:05
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rosmaitai'll put up a patch to the specs repo after the spec freeze happens14:05
rosmaitabut i don't expect many changes to the roadmap14:06
rosmaitaprobably no changes14:06
rosmaitaok, next item14:06
rosmaita#topic updates - spec-related freezes14:06
*** openstack changes topic to "updates - spec-related freezes (Meeting topic: glance)"14:06
rosmaita#link http://lists.openstack.org/pipermail/openstack-dev/2017-September/122365.html14:06
rosmaitayou may have seen that email, it outlines the freezes & why so soon14:07
rosmaitaanyway, spec proposal freeze is next week14:07
rosmaitaspec freeze the week after that14:07
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jokke_ok, quick sanity check. Any of the things we have on the roadmap needing new specs written?14:08
jokke_I know that abhishekk has been writing one for the property injections14:08
rosmaita#link https://review.openstack.org/#/q/project:openstack/glance-specs+status:open14:08
rosmaitathose are the open ones, abhishekk 's spec is in the list14:08
rosmaitathe pluggable flow spec is the major one14:09
abhishekkI guess for converting image format?14:09
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rosmaitathe rest are spec-lites14:09
rosmaitai'll put those together in the airport this afternoon14:09
rosmaita(there's a list on the roadmap)14:10
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rosmaitajokke_ : do we know enough about the pluggable flow architecture to write a spec now?14:10
jokke_rosmaita: not sure/really14:10
rosmaitalet's say it's covered by the image import mitaka spec14:10
jokke_rosmaita: that's one of the things that is on my list for checking from the IIR spec14:11
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rosmaitawe can add one later for documentation purposes if we have to14:11
rosmaitadefinite spec freeze exception for that14:11
jokke_as IIRC it was mentioned there while not really detailed14:11
rosmaitajokke_ that's my recollection too14:11
jokke_so I was more thingking how many of our items actually is covered spec wise already (or we are assuming so) and to which ones we should write one14:12
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rosmaitaso for that, we can either do a spec if the architecture is controversial or needs discussion, or otherwise just add docs immediately14:12
rosmaitai think we're pretty much committed to some kind of taskflow thing14:13
jokke_and I'd assume we won't be amending the IIR spec anymore but rather writing new ones, even if it means it will overrule some parts of the IIR?14:13
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rosmaitai don't know, will have to think about that14:14
jokke_I'd at least prefer that approach. The IIR spec is quite something already14:14
rosmaitaproblem is, we don't want competing specs lying around14:14
rosmaitaand we can't move the IIR to 'implemented' if the implementation is significantly different14:14
rosmaitalet's worry about that later14:14
jokke_;)14:14
rosmaita#action worry about strategy for ammending/updating IIR spec later14:15
rosmaita:)14:15
jokke_ok, sorry for bloating the topic14:15
rosmaitanp14:15
jokke_the deadline just got me scared14:15
smcginnisSome times it's easier updating specs after you see how things actually turn out. ;)14:16
jokke_smcginnis: indeed14:16
rosmaitasmcginnis exactly!14:16
rosmaitasmcginnis it's just ... have you *seen* the IIR spec?14:16
rosmaitait's a monster14:16
jokke_:P14:16
rosmaitabut i digress14:16
smcginnis:)14:16
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rosmaitaok, next item14:16
jokke_rosmaita: do I need spec to refactor the IIR spec? :P14:16
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rosmaitajokke_ the new "official" name for IIR is "interoperable image import"14:17
rosmaitaiii14:17
rosmaitaanyway, quick update on this week's stuff on the roadmap14:17
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jokke_I like more "Refactoring the Image Import Refactoring spec spec" :P14:17
smcginnisMore like "aye aye aye"?14:17
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rosmaitahttps://etherpad.openstack.org/p/glance-queens-ptg-roadmap14:18
rosmaitalet's take a quick look14:18
rosmaitai think most of this stuff is me14:18
rosmaitadid someone file a bug to track the iii test additions?14:18
abhishekknope14:19
rosmaitaabhishekk i think i saw that you had a list of something somewhere?14:19
jokke_abhishekk: made nice etherpad listing the currently needed tests 'though14:19
abhishekkI will put a new PS for property injection specs by tomorrow eod14:19
abhishekk#link https://etherpad.openstack.org/p/glance-image-import-tests14:20
rosmaitaabhishekk i will read and comment on current spec today, or do you want me to wait?14:20
abhishekkyou can add comment14:20
rosmaitaok, will do14:20
jokke_rosmaita: if you have time, please do ... specially sanity check my comments there14:20
rosmaitawill be in the airport for a while, will start with abhishekk 's spec14:21
jokke_before abhishekk rewrites it totally and then you disagree on those changes after ;)14:21
rosmaita:)14:21
abhishekk:D14:21
rosmaitaok, i think we should file a bug referencing abhishekk 's etherpad, so we can track the test additions? or do we just want to tell people to use a special topic?14:21
rosmaitai can go either way, just whatever's easier for people adding tests14:22
rosmaitalooks like gb21 found someone who's new to glance, but wants to learn14:22
abhishekkI guess topic will be sufficient14:22
rosmaitaworks for me14:23
jokke_rosmaita: I'm not huge fan of tracking work items as bugs when they are enchancements but I do see the point for that as well14:23
jokke_actually topic could be better as they are just tests ... that way we don't dump them into releasenotes14:24
rosmaita"Please use the topic: import-tests for your patches"14:24
jokke_as that's not really anything user/operator facing14:24
rosmaitajokke_ good point14:24
rosmaitathe topic should be sufficient14:24
rosmaitathanks for putting that together, abhishekk14:24
jokke_#agreed "Please use the topic: import-tests for your patches"14:24
abhishekknoted14:25
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jokke_^^ we should have it easily found from the meeting notes summary14:25
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abhishekkrosmaita: np, may be sometime next week I will start working on if no one works on it14:25
rosmaitaok, i have not made progress on running taskflow with eventlet14:26
rosmaitadue to not working on it14:26
jokke_:P14:26
rosmaitai will continue with that soon as i have some time14:26
rosmaitawhich will happen soon, i've been travelling for meetings this week, will be back home this weekend14:26
jokke_rosmaita: it works perfectly fine with eventlet :P14:26
rosmaitaok, good point14:27
rosmaitathe key issue is that we need *all* of glance working with devstack14:27
rosmaitai need to follow up on the oslo.concurrency bug, too14:27
rosmaitaok, enough updates14:27
rosmaita#topic community goals14:27
*** openstack changes topic to "community goals (Meeting topic: glance)"14:27
jokke_rosmaita: yup ... and the plan was to look if we get it working without eventlet which is causing the problem under uwsgi14:27
rosmaitaok, first goal is to split out the tempest plugin into its own repo14:28
rosmaitaand ...14:28
rosmaitawe don't have a tempest plugin14:28
rosmaitaso mission accomplished!14:28
jokke_ \\o \o/ o// o/714:28
rosmaita#link http://git.openstack.org/cgit/openstack/governance/commit/?id=18e24651cf9d0f5000bad9b0104cacf4c8734ee614:28
jokke_do we still need to have repo for it?14:28
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smcginnisNice, one goal done already. :D14:29
rosmaitajokke_ no, don't think so14:29
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smcginnisjokke_: No, shouldn't need it unless there is a plan to add tests there.14:29
rosmaitaok, for the second goal, i've got a spec-lite up, which is how we've traditionally tracked these things14:29
rosmaita#link https://review.openstack.org/#/c/501869/14:29
rosmaitaneeds +2s so that i can put up a patch to governance repo about our plans14:30
rosmaitaso, glance cores, please take a look14:31
abhishekkyes14:31
jokke_smcginnis: I might have been slightly sarcastic there ;)14:31
rosmaita#topic "multihash"14:31
*** openstack changes topic to ""multihash" (Meeting topic: glance)"14:31
smcginnisjokke_: Hah! ;)14:31
rosmaitai've put "multihash" in quotes because the name is a bit misleading14:31
smcginnisrosmaita: I need to update the goal tracking for the tempest split for relmgt. Would you like me to submit a patch for glance noting there is no work to do?14:32
rosmaitasmcginnis thanks, but someone already put it up, and it was merged14:32
smcginnisrosmaita: Oh, great. I must be looking at a stale view.14:32
jokke_rosmaita: I do I remember totally wrong, but I think we originally agreed to default to the sha-512 due to the performance benefit of it?14:32
rosmaitayes, that's why i want to discuss this14:33
rosmaitascott mcclaymont, you may have seen his name on reviews recently, has been looking into picking this up14:33
rosmaitahe can't be here today, but i spoke with him yesterday14:34
rosmaitahe has a few suggestions i want to run by everyone before he revises the spec and proposes it for queens14:34
jokke_ok14:34
jokke_shoot14:34
rosmaitaso, the situation is that we currently have 'checksum' which is md5 and no longer considered a secure checksum14:35
rosmaitabut we are keeping it for backward compat with old tools14:35
rosmaitascott's research is that most tooling these days uses sha-256 as the checksum14:35
rosmaitawhich is secure for now14:35
rosmaitaso, the "multihash" idea was to future proof glance by using a self-describing checksum field14:36
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rosmaitabut the problem with that is ... actually a bunch of things14:36
rosmaitaone is that you have to read the self-describing format (which isn't a big deal)14:36
jokke_so there is one problem/solution pair I'd like to flag right away14:37
rosmaitabut the other is that you won't have the hash you want to use available, unless that's the one the operator chose14:37
rosmaitajokke_ hang on a sec14:37
jokke_we do _need_ to add the algorithm support to the discoverability API we have in 2.614:37
rosmaitaso scott's idea is: we use 'checksum' for current backward compat, add a sha-256 for current tools and backward compat when sha-256 becomes "collidable", and sha-512 for future proofing14:38
rosmaitano question about what algo is used, because there's a specific field for each one14:38
rosmaitathere is a sha-3 family of algos, but bruce schneier says that it's not significantly better than sha-51214:39
rosmaitaso sha-512 should suffice for a while, like through U or so14:39
rosmaitaand then we can revisit14:39
rosmaitaone other thing14:39
jokke_so with the "current tools" I can't point a single major crypto lib that wouldn't support sha-512 as of now14:40
rosmaitascott pointed out that no operator is going to want to migrate hashes, like if we are storing sha-256 in a self-describing field, no one will want to update all images to sha-51214:40
rosmaitajokke_ exactly14:40
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rosmaitathere is good support for md5, sha-256 and sha-51214:40
rosmaitagitfs uses sha-25614:41
rosmaitaand a bunch of other things do too14:41
rosmaitaso it would be convenient to have the sha-256 for an image14:41
jokke_but the whole thing of the multihash was that we have the capability not to carry on with known vulnerable hash ... say sha-(put your bitlength here) is found to be broken in January14:41
rosmaitajokke_ exactly, but i'm beginning to think that's not helpfuyl14:42
jokke_like we have the current hash tied to md5 today14:42
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rosmaitai know, and a lot of tooling still uses our md514:42
jokke_rosmaita: it might sound like a great idea to hardcode it as sufficient today (just like it probably did 7 years ago to do with md5)14:43
rosmaitaand a lot of tooling will still use sha-256 even if broken14:43
rosmaitajokke_ i agree with where you are going14:43
rosmaitabut think about the migration issue14:43
rosmaitaanyway, we can discuss this on scott's patch14:43
jokke_that, but also the tooling _needs_ to be changed already to use anything else than md5 as we haven't provided anything else so far.14:43
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jokke_so why not do it right for once?14:44
rosmaitayeah, but we can do it right, but how do we force the tooling to comply?14:44
rosmaitaand i am worried about the migration issue14:44
rosmaitawhich i guess goes away if we make sha-512 the default now14:45
jokke_rosmaita: we don't and it's very much not our problem. We provided needed for the tooling to do right thing and be forwards compatible with it. If the tooling developer decides to do something else, it's absolutely their right and responsibility14:45
rosmaitaok, this will provide scott with some stuff to read through later14:46
rosmaitaso the final question will be, "multihash" or 2 fields?14:46
rosmaitabut we are running out of time14:47
rosmaitacan discuss that on the patch14:47
jokke_rosmaita: so if we inform what algo is used and the hash for it, it's both directions compatible and if the operator sees it important enough to migrate their lets say sha-256 hashes because it got broken, they can either do that or believe that the hash was valid when the image was created and check it against the old hash we have in records14:47
jokke_rosmaita: just having new images hashed with new algorithm does not need to mean that the old hashes cannot be still validated14:48
rosmaitai think the problem there is multi-region clouds, where you want to find the same image14:48
rosmaitayou can search for the same hash, but only if it's secure14:48
jokke_ok, lets continue that on the patch, there is too much ifs for the time we have ;)14:49
rosmaitathe problem is last time i looked, you can't get the checksum of a DLO/SLO in swift without downloading the entirew thing and checksumming locally14:49
rosmaitajokke_ agreed!14:50
rosmaita#topic  open discussion14:50
*** openstack changes topic to "open discussion (Meeting topic: glance)"14:50
rosmaitaoh yeah, priorities for the coming week14:50
rosmaitathere are some bugs marked for queens-1 milestone14:50
rosmaitaso those would be good to look at14:50
rosmaitathose and incoming specs14:51
rosmaitaanything else?14:51
jokke_did I promise to look into making those deprecation patches?14:51
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jokke_registry and glanceclient14:51
rosmaitajokke_ do you have time?14:51
rosmaitaor you can do one, i can do the other14:51
jokke_rosmaita: no, but I can make time for it :P14:52
jokke_I think I might have promised such14:52
rosmaitaok, you choose ... both or just one14:52
rosmaitayeah, my memory was that you said you would, but i was too polite to bring it up :)14:52
jokke_rosmaita: ok so how about we take look of them together I can lead with the registry and you lead with the client14:53
rosmaitaok, that works14:53
jokke_likely something we need to brainstorm common approach anyways14:53
rosmaitalet's talk about that on monday?14:53
jokke_++14:53
rosmaitaok, cool14:53
rosmaitaanything else on anyone's mind?14:54
jokke_I'll hopefully have majority of this apartment packed by that14:54
abhishekknothing14:54
rosmaitajokke_ oh yeah, i forgot about your move14:54
jokke_I might not be able to join next weeks meeting. I'll definitely try to14:54
rosmaitahope nothing got lost/broken14:54
jokke_Will happen next Wed by current plans14:54
jokke_so hopefully I'm online most of Wed and Thu but can't guarantee14:55
rosmaitaok, well, good luck14:55
rosmaitahope it goes well14:55
jokke_cheers14:55
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abhishekkall the best ;)14:55
jokke_that's all from me14:56
rosmaitamfedosin anything?14:57
mfedosincurrently no :)14:57
rosmaitaok, cool14:57
mfedosinput +1 on the patch if you can :)14:57
rosmaitamfedosin yeah, i guess i will +1 without a comment14:58
rosmaitai am thinking that any comments will only lead to more confusion14:58
mfedosinthanks Brian :)14:59
jokke_thanks all!14:59
rosmaitanp14:59
rosmaitaok, thanks everyone14:59
smcginniso/14:59
abhishekkthank you all14:59
rosmaita#endmeeting glance14:59
*** openstack changes topic to "OpenStack Meetings || https://wiki.openstack.org/wiki/Meetings"14:59
openstackMeeting ended Thu Sep 21 14:59:42 2017 UTC.  Information about MeetBot at http://wiki.debian.org/MeetBot . (v 0.1.4)14:59
openstackMinutes:        http://eavesdrop.openstack.org/meetings/glance/2017/glance.2017-09-21-14.01.html14:59
openstackMinutes (text): http://eavesdrop.openstack.org/meetings/glance/2017/glance.2017-09-21-14.01.txt14:59
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openstackLog:            http://eavesdrop.openstack.org/meetings/glance/2017/glance.2017-09-21-14.01.log.html14:59
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LouisF#startmeeting service_chaining17:00
openstackMeeting started Thu Sep 21 17:00:11 2017 UTC and is due to finish in 60 minutes.  The chair is LouisF. Information about MeetBot at http://wiki.debian.org/MeetBot.17:00
openstackUseful Commands: #action #agreed #help #info #idea #link #topic #startvote.17:00
*** openstack changes topic to " (Meeting topic: service_chaining)"17:00
openstackThe meeting name has been set to 'service_chaining'17:00
LouisFhi all17:00
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bcafarelhey LouisF17:00
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LouisFbcafarel: hi thanks for running meeting17:01
LouisF#topic agenda17:01
*** openstack changes topic to "agenda (Meeting topic: service_chaining)"17:01
LouisFhttps://wiki.openstack.org/wiki/Meetings/ServiceFunctionChainingMeeting17:01
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bcafarelLouisF: no problem it was quiet both weeks (thanks pcarver for keeping me company)17:01
igordchi17:01
LouisFigordc: hi17:02
LouisF#topic Pike release17:02
*** openstack changes topic to "Pike release (Meeting topic: service_chaining)"17:02
LouisFlooks like its ok17:03
LouisFbcafarel: thanks for testing17:03
LouisF#topic Denver meeting17:03
*** openstack changes topic to "Denver meeting (Meeting topic: service_chaining)"17:03
LouisFdid anyone attend?17:04
igordcI didnt17:04
bcafarelmost (if not all) sfc contributors were not there17:04
LouisFok17:05
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LouisF#topic API reference17:05
*** openstack changes topic to "API reference (Meeting topic: service_chaining)"17:05
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bcafarelapparently split tempest plugin will be a queens goal: https://governance.openstack.org/tc/goals/queens/split-tempest-plugins.html17:05
bcafarelto check if we have to to it too (networking-sfc is listed)17:06
LouisFok need to work out what is involved17:07
LouisFpcarver: what is status on api reference?17:08
LouisF#topic Queens work17:09
*** openstack changes topic to "Queens work (Meeting topic: service_chaining)"17:09
LouisFthe sfc work items for queens are at minimum: Tap SF and SFC graph17:10
igordcI'm splitting the graph api extension into its own file17:10
LouisFigordc: ok17:10
bcafarelgeneric note here: remember to update the alembic migrations parts (queens instead of pike)17:10
igordcit's annoyngly not working yet but hope to do it this week17:11
igordcand then unblock everything else17:11
igordcbcafarel: done!17:11
LouisFigordc: thanks17:11
LouisFlooks like vikash is not on17:14
LouisFigordc: look forward to patch updates17:14
LouisF#topic Non-transparent SF17:16
*** openstack changes topic to "Non-transparent SF (Meeting topic: service_chaining)"17:16
LouisFno progress on this - will resume17:16
LouisF#topiv SFC-OVN work17:16
LouisF#topic SFC-OVN work17:16
*** openstack changes topic to "SFC-OVN work (Meeting topic: service_chaining)"17:16
LouisFJohn is not on17:17
LouisF#topic other items17:18
*** openstack changes topic to "other items (Meeting topic: service_chaining)"17:18
LouisFany other items to discuss17:18
LouisFok thanks all17:19
LouisFbye all17:19
bcafarelbye!17:19
LouisF#endmeeting17:19
*** openstack changes topic to "OpenStack Meetings || https://wiki.openstack.org/wiki/Meetings"17:19
openstackMeeting ended Thu Sep 21 17:19:46 2017 UTC.  Information about MeetBot at http://wiki.debian.org/MeetBot . (v 0.1.4)17:19
openstackMinutes:        http://eavesdrop.openstack.org/meetings/service_chaining/2017/service_chaining.2017-09-21-17.00.html17:19
openstackMinutes (text): http://eavesdrop.openstack.org/meetings/service_chaining/2017/service_chaining.2017-09-21-17.00.txt17:19
openstackLog:            http://eavesdrop.openstack.org/meetings/service_chaining/2017/service_chaining.2017-09-21-17.00.log.html17:19
igordcbye17:20
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