Tuesday, 2019-08-13

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openstackgerritMerged openstack/neutron stable/stein: fix update port bug  https://review.opendev.org/67496500:21
openstackgerritMerged openstack/neutron stable/stein: Fix sort issue in test_dhcp_agent_scheduler.test_filter_bindings  https://review.opendev.org/67583900:21
openstackgerritMerged openstack/neutron stable/queens: Check for agent restarted after checking for DVR port  https://review.opendev.org/67196600:21
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openstackgerritMerged openstack/neutron stable/stein: [DVR] Add lock during creation of FIP agent gateway port  https://review.opendev.org/67583802:51
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openstackgerritzhufl proposed openstack/neutron master: [Trivial]Remove unused helper get_port_external_ids  https://review.opendev.org/67604503:26
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openstackgerritChason Chan proposed openstack/neutron master: Add a deprecated note of FWaaS v1  https://review.opendev.org/67609103:54
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zufarHello, I want to ask about OVN, if I deploy OpenStack with OVN enabled, should I need network node?04:10
zufarInstallation step said that openstack don't require network node anymore, https://docs.openstack.org/networking-ovn/latest/install/manual.html04:10
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PavanI have setup k8s on magnum, and run 1 pod and service , i am able to access port on local n/w but not on public network06:42
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openstackgerritzhufl proposed openstack/neutron master: [Trivial]Remove helpers never used  https://review.opendev.org/67611807:01
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openstackgerritCao Xuan Hoang proposed openstack/neutron-vpnaas master: [WIP] Enable libreswan functional gate  https://review.opendev.org/65904307:18
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openstackgerritSlawek Kaplonski proposed openstack/neutron stable/rocky: Populate binding levels when concurrent ops fail  https://review.opendev.org/67587807:38
openstackgerritSlawek Kaplonski proposed openstack/neutron stable/queens: Populate binding levels when concurrent ops fail  https://review.opendev.org/67587907:38
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openstackgerritJakub Libosvar proposed openstack/networking-ovn master: migration: Use python3 packages when needed  https://review.opendev.org/67588408:12
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openstackgerritMaciej Józefczyk proposed openstack/networking-ovn master: Add OVN Octavia CI jobs  https://review.opendev.org/58971209:12
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slaweqamotoki: hi09:26
slaweqamotoki: You around?09:26
slaweqamotoki: I'm checking status of py3 transition for neutronclient, and it looks for me that with https://review.opendev.org/#/c/672532/ we are done, right?09:26
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slaweqor is there anything else still missing there?09:27
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amotokislaweq: hi10:22
amotokislaweq: I believe it is done by https://review.opendev.org/#/c/672532/10:22
slaweqamotoki: yes, that was my understanding but I wanted to hear confirmation from You :)10:28
slaweqamotoki: thx10:28
amotokislaweq: thanks for checking the status. zuulv3 migration has also been done, so I will send a patch to drop the legacy jobs too.10:28
slaweqamotoki: great, thx :)10:29
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amotokislaweq: I noticed the legacy jobs are being used in stable branches, so they cannot be dropped now :-(10:38
slaweqamotoki: but where those jobs are defined? In zuul repo?10:38
amotokislaweq: they are define in openstack-zuul-jobs10:39
amotokiso I think they cannot be dropped now.10:39
slaweqamotoki: yes, so we have to wait with removal of those jobs until we will drop support for stable branches which uses them10:40
amotokithat looks a tricky point...10:41
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slaweqamotoki: You were on bug deputy last week, right?10:50
amotokislaweq: yes, I was. I am preparing a mail now. I am in summer off (vacation?) in my company this week so I am lazy enough :p10:52
slaweqamotoki: sure, no problem10:53
slaweqI just wasn't sure if I missed email from You or You didn't send it yet10:53
slaweqtake Your time and no rush :)10:53
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openstackgerritMerged openstack/neutron-dynamic-routing master: use payloads for ROUTER_GATEWAY events  https://review.opendev.org/63850611:32
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openstackgerritMaciej Józefczyk proposed openstack/networking-ovn master: WIP Set binding profile directly from OVNTrunkDriver  https://review.opendev.org/67618212:48
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amotokislaweq: I just sent a bug deputy report http://lists.openstack.org/pipermail/openstack-discuss/2019-August/008436.html13:36
slaweqamotoki: thx a lot13:37
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openstackgerritMerged openstack/neutron stable/rocky: Stop OVS agent before starting it again  https://review.opendev.org/67588014:11
openstackgerritOleg Bondarev proposed openstack/python-neutronclient master: Use secure sha256 instead of sha1  https://review.opendev.org/67620214:12
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openstackgerritMerged openstack/neutron stable/queens: Stop OVS agent before starting it again  https://review.opendev.org/67588114:26
openstackgerritMerged openstack/neutron stable/rocky: fix update port bug  https://review.opendev.org/67496614:26
openstackgerritMerged openstack/neutron stable/queens: fix update port bug  https://review.opendev.org/67496814:26
openstackgerritMerged openstack/networking-ovn master: Support for Router Scheduling on addition/removal of chassis  https://review.opendev.org/59146114:29
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openstackgerritMerged openstack/networking-ovn stable/stein: Update port_status to ACTIVE during live-migration  https://review.opendev.org/67583015:17
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liuyulongHi guys, I may ask a question about IPv6. Information and advise are all welcomed.15:22
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liuyulongFor DHCPv6-stateful, aka "--ipv6-ra-mode DHCPv6-stateful --ipv6-address-mode DHCPv6-stateful", the subnet range must be /64? or not?15:23
liuyulongFor DHCPv6, there is no "subnet-mask" option, so how to specify a certain range for one DHCPv6 request?15:24
liuyulongAnd I noticed that the dnsmasq option "--dhcp-range=set:tag1,xxxx:xxxx:xxxx:ffff:8000:0:28:0,static,110,infinite" does now work!15:26
liuyulongcmd.append('--dhcp-range=%s%s,%s,%s,%d,%s' % ('set:', self._TAG_PREFIX % i, cidr.network, mode, cidr.prefixlen, lease)) This is the original code.15:27
liuyulonghttps://github.com/openstack/neutron/blob/master/neutron/agent/linux/dhcp.py#L399-L40215:28
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liuyulongIn RFC 3315: https://tools.ietf.org/pdf/rfc3315.pdf, I did not see a mandatory requirement for such range subnet range. But seems 'dhclient' and 'dnsmasq' can not work in such scenario. Or maybe I miss some important thing?15:30
openstackgerritLucas Alvares Gomes proposed openstack/networking-ovn master: WIP: Virtual port support  https://review.opendev.org/67622315:35
haleybliuyulong: i don't think there's any requirement about using /64 for dhcpv6 stateful, it's just the "normal" length used on a network (rfc 8415 only mentions it in the IA_PD sections)15:37
haleybstateful is the hardest to get working properly IMO, slaac or stateless is more typical15:38
liuyulonghaleyb, let me revisit the rfc 8415 again...15:40
liuyulongMy thoughts is not to introduce another new external process for neutron... Prefix delegation needs dibbler-server according to this doc: https://docs.openstack.org/neutron/stein/admin/config-ipv6.html15:43
haleybliuyulong: prefix delegation needs some kind of server, can live in the upstream router (eg think that's a cisco config thing), but neutron only requires dibbler-client15:46
liuyulongSome detail about my test is: create one subnet pool with  "--pool-prefix 2001:db8:2222:6977::/64" and "--default-prefix-length 110". User creates IPv6 subnet from this pool will have a xxxx:xxxx::/110 range, the mode is "--ipv6-ra-mode DHCPv6-stateful --ipv6-address-mode DHCPv6-stateful".15:47
liuyulongBut everytime, the VM will get a IPv6 address with /64 prefix.15:47
liuyulongNot /11015:48
haleybhow is VM configuring it?  based on the dhcpv6 response?15:48
liuyulongThis is the centos7.5 default dhclient daemon  "/sbin/dhclient -6 -1 -lf /var/lib/dhclient/dhclient6--eth0.lease -pf /var/run/dhclient6-eth0.pid eth0 -H yulong-test-ipv6-vm-1"15:49
liuyulongYes, DHCPv615:49
liuyulongOption "-R subnet-mask,...,..." does not work for dhclient of IPv6.15:50
openstackgerritMerged openstack/neutron stable/stein: Populate binding levels when concurrent ops fail  https://review.opendev.org/67587715:51
liuyulongThe dnsmasq DHCPV6 Advertise and Reply are all in "IA_NA" mode (maybe not mode, option).15:52
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haleybliuyulong: so i guess nothing is setting a prefix length?  sorry, stateful is the one i know least15:53
liuyulonghaleyb, yes, no PD server in such test.15:55
fricklerdhcpv6 only assigns an address as /128, the prefix comes via RA. not sure though whether an RA can contain a prefixlength or it always assumes /6415:55
liuyulongfrickler, yes, I can see VM send RA out15:56
liuyulongif prefix only comes from RA, then a PD server is needed anyway?15:57
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haleybliuyulong: the prefix information option would appear in the RA from the neutron router, and it has a length field in it15:58
haleybbut i don't know if it's included when it's not slaac/stateless, tcpdump would know :)15:59
liuyulongMaybe we should update the IPv6 doc for such scenario, or all those permutation and combination of scenarios of "slaac" and "dhcpv6-stateless".15:59
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liuyulonghaleyb, I'm tcpdumping it now.16:00
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haleybliuyulong: in a typical deployment, i would assume there is a PD server on the external network, and so when you configure your neutron router/network for PD, it gets a prefix it will then assign to the private network (i hope that part is clear)16:02
haleybin that case the prefix is completely routable in the datacenter16:03
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liuyulonginterface qr-f3a63b33-d916:07
liuyulong{16:07
liuyulong   AdvSendAdvert on;16:07
liuyulong   MinRtrAdvInterval 30;16:07
liuyulong   MaxRtrAdvInterval 100;16:07
liuyulong   AdvLinkMTU 1500;16:07
liuyulong   AdvManagedFlag on;16:07
liuyulong   prefix xxxx:xxxx:xxxx:ffff:8000:0:28:0/11016:07
liuyulong   {16:07
liuyulong        AdvOnLink on;16:07
liuyulong        AdvAutonomous off;16:07
liuyulong   };16:07
liuyulong16:07
liuyulong};16:07
liuyulongthis is radvd config for one router.16:07
fricklerliuyulong: please use paste.openstack.org for multiline pastes16:07
fricklerbut yes, I just tested the same, if the client handles that correctly, all should be fine16:08
liuyulongbut I did not see perfix in Neighbor Advertisement, something wrong?16:08
amotokiPD and a subnet size are not tightly coupled.16:09
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amotokifrom my limited experience on ipv6, many impls assume /64 subnet size.16:09
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amotokiRA seems to carry subnet size per RFC though.16:10
fricklerliuyulong: how to you check that? when I do a tcpdump, it shows the /96 I'm testing with correctly16:11
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openstackgerritBrian Haley proposed openstack/neutron-tempest-plugin master: Start enforcing E125 flake8 directive  https://review.opendev.org/67623616:12
liuyulongfrickler, tcpdump at the VM tap-device.16:12
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liuyulongamotoki, yes, I also searched some info with such content, /64 is default.16:17
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fricklerliuyulong: works fine for me, can you show a paste of it? I see http://paste.openstack.org/show/756531/, same on the tap if16:18
liuyulongThis is an output from wireshark: http://paste.openstack.org/show/756532/16:20
fricklerliuyulong: those are neighbor advertisements, you need to look at a router advertisement16:21
frickleralso might need a more verbose output to see the details about the prefix16:22
liuyulongNone of those packets have a prefix info.16:22
liuyulongOK, let me tcpdump in qrouter-ns also.16:23
haleybfrickler: that was from dnsmasq, right?  your paste did have the PIO with a /9616:24
fricklerhaleyb: radvd is what generates the RAs16:25
haleybdoh, right, i can't remember our own code16:25
openstackgerritMerged openstack/neutron-lib master: New api-def: extraroute-atomic  https://review.opendev.org/67084916:26
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* haleyb will vanish for a bit, rebooting16:27
fricklerthat paste from liuyulong above is from the radvd.conf, so that seems to match up fine16:27
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openstackgerritAkihiro Motoki proposed openstack/networking-bagpipe master: Upgrade pylint to a version that works with python3  https://review.opendev.org/62917416:27
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liuyulongOK, I can tcpdump the prefix info in router namespace. So maybe some security group rules drop the dl_dst "33:33:00:00:00:01" packets....16:28
liuyulongOn compute host VM tap-device, I can not tcpdump any of such packets.16:29
amotokiDon't we have a provider rule to accept RA packets? RA packets should not be dropped :(16:30
liuyulongICMPv6 rule for ingress and egress are all added.16:31
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fricklerliuyulong: are you using linuxbridge or ovs? I seem to remember some issues with the former16:35
liuyulongovs16:35
liuyulonghttp://paste.openstack.org/show/756534/ this is the output in qrouter-ns after a "dhclient -6 -r" and "dhclient -6 ..."16:36
liuyulongEverything looks good.16:37
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liuyulongOK, let me use "ovs-appctl ofproto/trace" to see what happened...16:42
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openstackgerritAkihiro Motoki proposed openstack/networking-bagpipe master: Upgrade pylint to a version that works with python3  https://review.opendev.org/62917417:23
openstackgerritAkihiro Motoki proposed openstack/networking-bagpipe master: Upgrade pylint to a version that works with python3  https://review.opendev.org/62917417:25
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slaweqmlavalle: amotoki: just FYI: I just proposed new neutron-lib version as rubasov's patch was merged couple of hours ago20:16
mlavallethanks!20:16
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openstackgerritMerged openstack/neutron stable/queens: [DVR] Add lock during creation of FIP agent gateway port  https://review.opendev.org/67584621:14
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openstackgerritMerged openstack/neutron stable/queens: Fix sort issue in test_dhcp_agent_scheduler.test_filter_bindings  https://review.opendev.org/67584122:23
openstackgerritMerged openstack/neutron stable/rocky: Fix sort issue in test_dhcp_agent_scheduler.test_filter_bindings  https://review.opendev.org/67584022:23
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openstackgerritMerged openstack/neutron stable/pike: fix update port bug  https://review.opendev.org/67497022:43
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openstackgerritMerged openstack/neutron stable/rocky: Clear skb mark on encapsulating packets  https://review.opendev.org/67572923:50
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