Wednesday, 2018-03-21

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dulekAnyone knows why pods in DevStack get `KUBERNETES_PORT_443_TCP=tcp://10.0.0.129:443` in the env vars?09:56
dulek10.0.0.129 is not reachable from them…09:56
irenabdulek, what do you deploy?09:58
dulekirenab: It's DevStack with plain K8s. I'm trying to reach K8s API from inside the pod by using those env vars.09:58
ltomasboping dmellado dulek irenab yboaron: reminder of the call in a few minutes...10:00
dulekKuryr itself is able to reach the API because it has `api_root = http://192.168.101.249:8080` set. I wonder where K8s gets the 10.0.0.129.10:00
dulekltomasbo: Isn't it like this minute? ;)10:00
ltomasboyep xD10:00
irenabltomasbo, already in10:00
ltomasboany news about apuimedo?10:00
dmelladoI'm in there too10:00
ltomasboI don't see him on the channel10:00
dmelladoltomasbo: you better send him a whatsapp10:01
irenabdulek, I do not know... Maybe we need to move to using DNS10:04
dulekirenab: I'll dig this more, maybe it's just a simple bug.10:05
irenabdulek, here https://kubernetes.io/docs/concepts/services-networking/service/ a definition for how the env variables are defined10:06
ltomasbodulek, I think we create a fake router port for it at devstack/lib/kubernetes10:06
irenabI think ltomasbo is right10:07
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openstackgerritGenadi Chereshnya proposed openstack/kuryr-tempest-plugin master: Testing service creation and connectivity  https://review.openstack.org/53948510:07
irenabdulek, do you see this IP in the services of kube-system namespace?10:07
dulekirenab: It's in the default namespace.10:08
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ltomasboumm, that should be on the kube-system namespace, perhaps that is the problem10:09
ltomasboit is created with default/kubernetes, but the fake service is associated to kube-system10:09
ltomasboare we filtering that now somehow?10:09
dulekltomasbo: Hm, dunno really. What creates the fake service?10:11
dulekI've only found the fake router service.10:12
dulekOkay, I guess we can continue after the meeting.10:12
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openstackgerritGenadi Chereshnya proposed openstack/kuryr-kubernetes master: Adding containerized parameter as True to tempest.conf  https://review.openstack.org/55291510:21
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irenabsorry for being so silent during the call, have no voice due to a flu..10:54
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celebdorirenab: :(10:55
celebdorI hope you get better soon!10:55
celebdorat least for pesach10:55
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irenabcelebdor, must have10:56
ltomasboget better soon irenab!10:59
irenabltomasbo, thanks10:59
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openstackgerritGenadi Chereshnya proposed openstack/kuryr-tempest-plugin master: Testing service creation and connectivity  https://review.openstack.org/53948511:18
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dulekcelebdor: I've tracked this 10.0.0.129 issue. Fun stuff!13:29
dulekcelebdor: Basically… container from which I'm trying to connect is on host networking.13:29
dulekAnd this 10.0.0.129 is ClusterIP, so it's not available from the host.13:29
dulekcelebdor: Any idea how to tackle this properly?13:30
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openstackgerritGenadi Chereshnya proposed openstack/kuryr-tempest-plugin master: Testing service creation and connectivity  https://review.openstack.org/53948513:31
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ltomasbodulek, probably you need to do something similat to what we do for the kubelet ovs internal port13:38
ltomasbothat is set on pod_subnet, so perhaps you need to add another one for service_network13:38
ltomasbo(on devstack)13:38
dulekltomasbo: Hm, but what about non-DevStack deployments? openshift-ansible?13:41
ltomasbofor nested cases, there is no problem with that (I suppose) it is just a security group thing13:42
ltomasboand for baremetal case (as in the devconf demo) we actually had the kubelet already listening just on one openstack network13:43
dulekltomasbo: It's not really an SG issue - it happens for me in DevStack, where all SGs are allowing all.13:43
ltomasboyes, the problem is that hostIP is not in any neutron network13:43
ltomasboso, for devconf we actually had the kubelet on a neutron network, connected on br-int, instead of the server itself13:44
ltomasbodulek, but, how was this working before on the gates?13:45
dulekltomasbo: It works because api_root is set to http://192.168.101.249:8080, so it's not a service. It's hitting API directly.13:46
ltomasboAhh, ok13:46
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ltomasboso, then yes, the problem is the same we fixed with an internal port for the devconf demo, similarly to how celebdor fixed it in devstack for kubelet13:49
ltomasboroute -n13:49
ltomasboKernel IP routing table13:49
ltomasboDestination     Gateway         Genmask         Flags Metric Ref    Use Iface13:49
ltomasbo0.0.0.0         192.168.6.1     0.0.0.0         UG    0      0        0 eth013:49
ltomasbo10.0.0.64       0.0.0.0         255.255.255.192 U     0      0        0 kubeletc949eb713:49
ltomasboyou should add probably another one for routing traffic to 10.0.0.12813:49
ltomasboperhaps if you just manually modify the route to also send it through your kubeletXXX, it may work13:50
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dulekltomasbo: Okay, sounds like an idea.13:50
ltomasbo:)13:51
ltomasbolet me know if it helps...13:51
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celebdordulek: in openshift-ansible  deploymens the VMs have access to the cluster ips14:38
dulekcelebdor: Hm… Because of nested configuration?14:39
celebdorbecause the VMs are on the same router as the services and pod subnets14:39
celebdorso that kubelet can do container probes14:39
dulekOkay!14:40
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celebdorso, in devstack it should work via the kubelet interface14:41
celebdorit just needs a route14:41
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openstackgerritMaysa de Macedo Souza proposed openstack/kuryr-kubernetes master: [WIP] Modify managers/pool.py to use Flask Server  https://review.openstack.org/54845314:49
dulekcelebdor: Where are you adding that route for kubelet?14:50
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openstackgerritMaysa de Macedo Souza proposed openstack/kuryr-kubernetes master: [WIP] Modify managers/pool.py to use Flask Server  https://review.openstack.org/54845314:55
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openstackgerritAntoni Segura Puimedon proposed openstack/kuryr-tempest-plugin master: demo container: Include ssl certificates  https://review.openstack.org/55494515:01
celebdordulek: I don't :P15:02
celebdorlet me give you ad diff15:02
dulekcelebdor: I'd appreciate it. :)15:03
celebdordulek: do you have the devstack environment accessible so I can try the route?15:04
dulekcelebdor: Aww, I've just started restacking. It should take around 30 minutes to finish.15:05
celebdorok15:06
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maysamacedosltomasbo ping15:12
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maysamacedosltomasbo: I will add support for neutron vif pool management in a follow up patch, this one https://review.openstack.org/#/c/548453/ has too many modifications.15:22
maysamacedoswhat do you think?15:22
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celebdordulek: http://paste.openstack.org/show/707655/15:32
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dulekcelebdor: Thanks, I'll test it in a moment.15:34
celebdordulek: you're most welcome15:34
celebdordulek: this diff I sent you probably obsoletes https://review.openstack.org/#/c/533343/15:35
dulekcelebdor: Oh, I've forgot about that.15:37
celebdor:-)15:37
celebdordulek: I don't have short term memory, but the long term one still works15:37
celebdorLike an old man15:37
celebdor:-)15:37
celebdordmellado: you prolly want to recheck your zuul split patch15:37
celebdorit seems one octavia test timed out15:38
dmelladocelebdor: yeah, infra issues15:38
dmelladoI'm in the talk with ltomasbo15:38
dmelladowill do afterwards15:38
dmelladowhenever there's an infra issue, I'll start calling it a 'Gabert'15:38
dmelladoxD15:38
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ltomasbomaysamacedos, go for it! it is better to split it yes, easier to review!16:06
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celebdordulek: did it work?16:09
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dulekcelebdor: Sorry, haven't checked yet, was fighting with issues with passing env vars into `docker exec`. And now I have an appointment, so I'll be able to check in the evening on tomorrow morning.16:15
celebdordulek: which env vars you wanna pass?16:15
duleks/on tommorow/or tomorrow16:15
dulekcelebdor: `env | grep ^CNI_` - those are used to pass CNI_ARGS into the executable.16:16
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celebdordulek: why don't they add --env-file to docker exec like they have for docker run16:19
celebdorwhat a bother16:19
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maysamacedosltomasbo ok, ty!16:44
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openstackgerritAntoni Segura Puimedon proposed openstack/kuryr-kubernetes master: devstack: Make service subnet routable  https://review.openstack.org/55501518:31
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openstackgerritAntoni Segura Puimedon proposed openstack/kuryr-kubernetes master: Vagrant: Document the increased Octavia reqs  https://review.openstack.org/55502318:54
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openstackgerritMichał Dulko proposed openstack/kuryr-kubernetes master: devstack: Make service subnet routable  https://review.openstack.org/55501520:37
openstackgerritMichał Dulko proposed openstack/kuryr-kubernetes master: Execute kuryr-cni as `docker exec`  https://review.openstack.org/55504020:37
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