Monday, 2020-07-06

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openstackgerritAnn Taraday proposed openstack/octavia master: Add requirements for jobboard drivers  https://review.opendev.org/73918712:39
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openstackgerritCarlos Goncalves proposed openstack/octavia master: Allow amphorav2 to run without jobboard  https://review.opendev.org/73905316:03
openstackgerritCarlos Goncalves proposed openstack/octavia-lib master: Switch to victoria jobs  https://review.opendev.org/73954216:21
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openstackgerritMichael Johnson proposed openstack/octavia master: Work around neutron bug 1886116 for IPv6 tests  https://review.opendev.org/73955717:26
openstackbug 1886116 in neutron "slaac no longer works on IPv6 tenant subnets" [High,Confirmed] https://launchpad.net/bugs/188611617:26
openstackgerritMichael Johnson proposed openstack/octavia-tempest-plugin master: DNM: Debugging the IPv6 job  https://review.opendev.org/73871517:27
johnsomThat should get us farther, but I suspect the member subnets are also going to need routers to work around the bug.17:28
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haleybjohnsom: i know a guy who knows a guy that could work on that bug, using the original patch as a start :)17:53
johnsomhaleyb Yeah, that would be great, I just don't know when it would land, so doing a temporary work around of adding a router to the subnet17:55
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shtepaniehey johnsom! wondering what the status is on this? https://review.opendev.org/#/c/737111/19:21
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johnsomshtepanie Caught me at lunch. I think the status on that is it needs reviews. Thanks for the reminder.20:05
openstackgerritMichael Johnson proposed openstack/octavia master: Work around neutron bug 1886116 for IPv6 tests  https://review.opendev.org/73955720:09
openstackbug 1886116 in neutron "slaac no longer works on IPv6 tenant subnets" [High,Confirmed] https://launchpad.net/bugs/188611620:09
johnsom^^^ That fixes the IPv6 job20:10
haleybjohnsom: so i'm having second thoughts on "fixing" that in neutron, the dnsmasq patch is a little hacky since it would then always send RAs, even when there's a router, trying to avoid that.  And there was good comment #14 in https://bugs.launchpad.net/neutron/+bug/1498987 - "A dhcp agent is no router..."20:13
openstackLaunchpad bug 1498987 in neutron "[RFE] DHCP agent should provide ipv6 RAs for isolated networks with ipv6 subnets" [Wishlist,Confirmed] - Assigned to Dustin Lundquist (dlundquist)20:13
johnsomhaleyb Well, I am no fan of dnsmasq anyway, but that's what is being used to allocate IPs in neutron.20:14
johnsomThis all worked until about six months ago according to zuul.20:15
haleybjohnsom: hmm, that change was reverted in 2016, was it the same network topology?  weird20:16
haleybjohnsom: having a router w/out a gateway seems the simple fix, and I think without that dhcpv6 would also be broken.20:19
haleybon a network without a router should there be Router Advertisements?20:20
johnsomYeah, that job was created to meet the IPv6 goal and ran fine until something changed in neutron. Shame on us for ignoring it so long, lol20:20
haleybit shouldn't have been working at all based on that patch, so something else changed 6 months ago20:21
johnsomI think the question is, should slaac work on router-less subnets. You could make and argument that it should not and only link-local addresses should be used, but.... I think it either should be fixed or documented as "this will not work".20:25
roukslacc... without a router? people expect this to work? lol20:26
johnsomWell, in this case it is what kind of router.20:26
johnsomI.e. dnsmasq --ra-only20:27
roukdnsmasq sending RAs gives me the yeeby geebies20:27
johnsomdnsmasq anything doesn't sit well with me. I kill it anywhere I can at home.20:28
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haleybjohnsom: we can document our way around it, the dnsmasq support for RAs was really (i think) meant for the low-powered home router already running dnsmasq, quick hack to support something20:32
openstackgerritMichael Johnson proposed openstack/octavia master: Add a router to the lb-mgmt-net for slaac  https://review.opendev.org/73955720:59
johnsomhaleyb I have changed the wording on my patch. Are you going to update the networking guide?21:00
haleybjohnsom: i can create a patch to update it21:08
johnsomCool, tag the bug and we can close it out21:08
openstackgerritMichael Johnson proposed openstack/octavia master: Update amphora v2 for the failover refactor  https://review.opendev.org/73829221:12
johnsomWell, that should be the bulk of the task work. Still a bunch of work left to do, but some progress.21:13
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johnsomrm_work aannuusshhkkaa Posted some review comments for the stats patch.23:32
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