Tuesday, 2018-05-29

openstackgerritFeilong Wang proposed openstack/magnum master: Add health_status and health_status_reason to cluster  https://review.openstack.org/57081800:05
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openstackgerritFeilong Wang proposed openstack/magnum master: Add health_status and health_status_reason to cluster  https://review.openstack.org/57081801:42
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openstackgerritFeilong Wang proposed openstack/magnum master: (WIP) Support cluster-level logging with FEK  https://review.openstack.org/57070904:21
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openstackgerritFeilong Wang proposed openstack/magnum master: (WIP) Support cluster-level logging with FEK  https://review.openstack.org/57070904:31
flwangmagnum gate is failing because of cmd2 needs py3.4+, here is the fix in requirements https://review.openstack.org/#/c/570811/ just FYI04:44
flwangstrigazi: ^04:44
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strigaziflwang: do we have do smth in magnum side?08:40
ricolinstrigazi, FYI I think you already knows this, Blizzard use Magnum08:41
strigaziricolin: yes, rochapor1o told me :)08:44
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ricolinstrigazi, super!08:52
ricolinthey're finding ways to help upstream08:53
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flwang1strigazi: around?09:40
strigaziflwang1: yes09:40
flwang1strigazi: cool09:40
flwang1strigazi: need your opinion at here https://review.openstack.org/#/c/561783/7/magnum/drivers/common/templates/kubernetes/fragments/configure-kubernetes-master.sh@2509:42
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flwang1strigazi: now i'm "hardcode" the roles list, we can pass in by lables, but it will need more labels, and i'm not sure which is the better way09:43
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strigaziflwang1: may we discuss it in the meeting?09:45
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flwang1strigazi: yep, sure, im happy with that09:45
strigaziin 14 mins :)09:45
flwang1no problem09:45
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strigazi#startmeeting containers10:00
openstackMeeting started Tue May 29 10:00:08 2018 UTC and is due to finish in 60 minutes.  The chair is strigazi. Information about MeetBot at http://wiki.debian.org/MeetBot.10:00
openstackUseful Commands: #action #agreed #help #info #idea #link #topic #startvote.10:00
*** openstack changes topic to " (Meeting topic: containers)"10:00
openstackThe meeting name has been set to 'containers'10:00
strigazi#topic Roll Call10:00
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flwang1o/10:00
ricolinO/10:01
strigaziHello flwang1 and ricolin10:02
strigazi#topic Announcements10:02
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strigaziI'll do a magnumclient release this week for queens, to include a fix for the quota cmd10:03
strigazi#link http://git.openstack.org/cgit/openstack/python-magnumclient/commit/?h=stable/queens&id=40327b75edcab608e9c9d9ac0993855de088926b10:03
strigazi#topic Blueprints/Bugs/Ideas10:04
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strigaziFrom my side, I'm finishing the patch for the enable_cloud_provider label10:04
strigaziI'm also testing the move to fedora 28, seems ok, I'm running the conformance tests10:05
brtknrHi all10:06
strigaziFinally, I have a patch for the make cert files to do less api call, use the same token and fetch the ca once. here:10:07
strigazihttps://github.com/openstack/magnum/blob/master/magnum/drivers/common/templates/kubernetes/fragments/make-cert-client.sh#L4310:07
strigazihi brtknr10:07
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strigaziAnd one more thing that I need input from ricolin and all10:08
strigaziWill we gain anything if we consolidate the software deployment and software configs?10:08
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strigaziI mean if we gain anything in db size and requests10:08
strigazi@all fyi, the templates create a lot resources in heat which loads quite  bit the heat db10:09
flwang1any performance issue on heat side?10:09
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strigaziflwang1: yes, in our deployement we create a  lot of connection to the db and requires some tuning on db config10:11
flwang1strigazi: i mean are you aware of any performance issue on heat10:11
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strigazithe problem goes away if heat is configured properly (I mean the error when talkin to the db)10:11
strigazibut I was wondering if we can reduce the load10:11
brtknrDo you mean by reducing the number of objects that heat is responsible for handling?10:12
strigazibrtknr yes10:13
flwang1strigazi: we can do that10:13
strigaziI just wanted some input from heat team, do be sure that we gain something in performance10:14
strigaziwe can always have a look at the code though :)10:14
strigaziAnyway, I'll have a look10:15
flwang1cool10:15
strigaziflwang1: do you want to go next?10:15
flwang1strigazi: ok10:15
flwang1i have propose a patch for k8s keystone auth integration10:15
brtknrOn one of my current deployments with 1 master, 3 nodes, I have 139 objets10:16
flwang1it works but need some input from you folks10:16
brtknrat nested depth 410:16
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flwang1i will talk more about this later10:16
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flwang1and i also proposed a patch to support cluster-level logging with FEK10:16
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flwang1logging is the only important addons we're missing for k8s10:17
strigaziflwang1 Could we have a parameter to point to an external ES?10:17
strigaziflwang1: or both10:17
flwang1strigazi: could be10:17
flwang1we can add it later? or you want to do it in current patch?10:17
strigaziflwang1: if the change is not big, could  we do in this patch?10:18
flwang1strigazi: but the hard part is how to save those certs/credentials from fluentd to ES10:18
flwang1strigazi: i don't know, i need to take a look to get back to you10:18
strigaziflwang1: can we make the policy a configmap?10:19
strigazino we can't10:19
flwang1you mean the policy of k8s keystone auth?10:19
strigaziit is not a pod10:19
flwang1no, we can't10:19
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flwang1unless we want to put it into master's kubelet10:19
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flwang1but i don't want to go for that way, that's one of the problems10:20
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strigaziDoes this policy need to change frequently?10:21
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flwang1strigazi: you know, like the policy.json in openstack world10:22
strigaziI mean, it need to change if we give access to more projects?10:22
flwang1it shouldn't be based on my understanding10:22
flwang1strigazi: hmm... for that case, maybe10:23
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strigaziSo if project A has a cluster and owns the cluster. Can the admin give read access to project B?10:23
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flwang1strigazi: TBH, i haven't tested this, but technically yes10:24
flwang1however, my current patch doesn't support that10:24
flwang1currently, the project id is injected siliently10:24
strigaziok, I'll test it10:25
strigaziflwang1: I think giving access to more project in running clusters is a plus, what do you think?10:26
flwang1strigazi: it could be useful for private cloud10:27
flwang1not public cloud ;)10:27
flwang1we can discuss more details offline10:28
strigaziok10:28
strigazithanks10:28
flwang1another thing i'm working on is the cluster monitoring10:28
flwang1i have proposed a patch to add health_status and health_status_reason10:28
flwang1for next step, i need to know current status of the eventlet issue10:29
strigaziflwang1: I think it will take too long to fix10:29
strigaziflwang1:  we should just use python requests IMO10:29
flwang1strigazi: can we just add a very think wrapper to use requests10:30
strigazimaybe it works in python3, but it is not good enough10:30
flwang1and switch back when it's fixed10:30
strigaziflwang1: sounds good given the situation with eventlet, the problem in magnum is fixed but breaks elsewhere10:30
flwang1strigazi: ok, i will try to make a wrapper10:31
strigaziso we can't bump o/r/g-r10:31
strigaziflwang1: node status should be enough to start with10:32
flwang1or just replace k8s client with requests10:32
flwang1strigazi: yep10:32
flwang1i'm using json dict for the health_status_reason, so we should be able to express more10:33
strigaziflwang1 +110:33
strigaziflwang1: it could be the dict returned by k8s api?10:34
strigazihmm, maybe it will limit us in the future10:34
flwang1strigazi: i prefer to do some re-formating10:34
flwang1instead of using the resp from k8s api10:34
flwang1to make sure we have some flexible space10:35
strigaziflwang1: fyi https://github.com/kubernetes/kubernetes/tree/master/cluster/addons/node-problem-detector10:35
flwang1that's on my list10:35
strigazicool10:36
flwang1that's all from my side10:37
flwang1lot of things to do10:37
strigaziCool, I looked into one more thing10:37
strigazimultimaster without octavia lbaas10:38
strigaziit can be done if we habe a reverse proxy in the nodes. kubespray does this10:38
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strigazithe only caveat is that if the masters change we need to update the nodes10:39
strigazithoughts?10:39
flwang1what do you mean update the nodes? updates the master ip address in nodes?10:39
strigaziyes, update the master ip(s)10:40
strigaziat the moment, we don't support change of the masters anyway, but if we do in the future it is doable10:41
flwang1that's doable10:41
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strigaziok then, I'll have a look10:42
strigazibrtknr: do you want to discuss something?10:43
strigazibrtknr: I have something for you actually10:43
strigazibrtknr: Do you want to push a patch to be able to chose the cgroup-driver?10:43
strigazisystemd/cgroupfs10:44
brtknrI wanted to see where this conversation was going, plus maybe ask question about the blueprint i submitted10:44
brtknrI can push that patch :)10:45
strigazibrtknr: thanks10:45
strigazibrtknr: which bp?10:45
brtknrstrigazi: Blueprint re attaching multiple networks to magnum cluster10:45
brtknrwhich we are currently doing manually via nova10:45
brtknrafter cluster creation10:46
strigazibrtknr: do you have a mock patch for this, how to do it in heat?10:46
strigazibrtknr: multiple private?10:46
brtknryes10:46
brtknrI dont have a mock patch yet but wondering if this is something blueprint-worthy/whether other people also have the same problem10:47
strigazibrtknr: you want to be able to do it in cluster creation only or change it after as well?10:47
flwang1brtknr: does that mean something like 1 network for master  and 1 for nodes?10:47
strigazibrtknr: It sounds like a fearure to me :)10:47
strigaziflwang1: many private networks for all nodes10:48
flwang1strigazi: wow10:48
flwang1that's not a small change i think10:48
strigaziit isn't10:48
brtknrNo, e.g. attach infiniband, ethernet both to masters and nodes10:48
strigaziNo to what?10:49
brtknrNo to 1 network for master, 1 for node10:49
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brtknralthough that is an interesting proposition10:49
strigazibrtknr: well flwang1 is interested more in master in project and minions in the other10:50
strigaziwe as well, but this is even harder10:50
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strigazithe above logic can be usefull though10:50
brtknrhmm yes, similar to invisible control plane that they have on gcloud?10:50
strigaziyes10:50
flwang1yes10:51
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strigaziI like to call it not accountable :)10:51
flwang1I would like to call it invisible masters :)10:51
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strigaziwe can have a router that is owned by the ops team10:52
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strigaziand a router for the client10:52
brtknropenstack coe cluster create --invisible-master?10:52
strigaziis it like this in GKE?10:54
flwang1brtknr: no, it could be a default action configured by ops10:54
flwang1strigazi: no, in GKE, it's the default behaviour10:54
strigaziwe can offer both10:55
flwang1strigazi: sure10:55
brtknrFor the multiple networks, the syntax would look something like `openstack cluster create k8s-cluster --fixed-network network1 network2 network310:55
flwang1i'd like to pick this up in S cycle10:55
strigaziadvanced user might want to access the master nodes, it is their cluster anyway10:55
brtknrI am not sure how subnets would be handled10:55
strigaziMaybe they want to access the etcd db10:55
strigazibrtknr: you can describe how you do it manually in the bp10:57
flwang1we're running out of time10:57
brtknrOk will do10:57
strigazithanks10:57
strigazilet's continue offline10:57
strigazithanks for joining the meeting brtknr and flwang110:58
brtknrBack to the other point, where would systemd/cgroupfs option be defined? At cluster creation?10:58
flwang1strigazi: thank you10:58
strigazibrtknr: it would a label10:58
strigaziwe can continue in the channel10:59
strigazi#endmeeting10:59
brtknrokay makes sense10:59
*** openstack changes topic to "OpenStack Containers Team"10:59
openstackMeeting ended Tue May 29 10:59:16 2018 UTC.  Information about MeetBot at http://wiki.debian.org/MeetBot . (v 0.1.4)10:59
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brtknrI have just got a devstack env setup to start developing magnum11:00
flwang1strigazi: anything else you want to discuss?11:00
flwang1i'm gonna offline11:00
brtknrCurrently testing a patch by mgoddard to enable cluster creation with floating ip disabled for k8s and docker swarm11:01
brtknrAfter that I can work on the driver patch11:02
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strigazibrtknr: cool, let me know if you need anything11:05
strigazibrtknr: I'm out for lunch, I'm in europe, so ping me11:06
brtknrRe cluster creation, looks like disable floating IP flag is being ignored at the moment11:06
brtknrstrigazi: I am currently stuck because certs are not being copied over so etcd.service is failing to start11:07
brtknrWill continue to investigate...11:07
brtknrstrigazi: Will do :)11:07
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strigazibrtknr: what is the error?12:11
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brtknrstrigazi: Ah, so looks like the certs dont copy over12:20
brtknrstrigazi: Certs for etcd12:20
brtknrstrigazi: I'm working on this branch: https://github.com/stackhpc/magnum/tree/swarm-disable-floating-ip12:21
strigazibrtknr you can push it in gerrit as WIO12:21
strigazibrtknr you can push it in gerrit as WIP12:21
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brtknrhttp://paste.openstack.org/show/722255/12:58
strigazibrtknr journalctl -u etcd --no-pager12:59
openstackgerritBharat Kunwar proposed openstack/magnum stable/queens: Support disabling floating IPs in swarm mode clusters  https://review.openstack.org/57093713:01
brtknroutput: http://paste.openstack.org/show/722257/13:03
strigazibrtknr: etcdmain: open /etc/etcd/certs/server.crt: no such file or directory13:04
strigazibrtknr: cat /var/log/cloud-init-output.log13:05
brtknrYes, I am trying to work out why the certs arent being copied over13:05
strigazish -x /var/lib/cloud/scripts/<something>-part00513:06
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strigazibrtknr NOTE: the output contains password13:07
strigazipasswords13:07
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brtknrhttps://gist.github.com/848687b3324c7d5fa88593ff7e01f91913:11
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brtknrthats okay, this is a test dev environment13:11
strigazibrtknr: https://gist.github.com/brtknr/848687b3324c7d5fa88593ff7e01f919#file-cloud-init-output-log-L15613:12
strigazibrtknr: is /var/lib/cloud/instance/scripts/part-011 the make-cert file13:12
strigazi?13:12
strigaziI suspect connectivy from vms to OS apis13:13
brtknrhmm all the scripts folders are empty13:15
brtknrwait, i was checking the wrong place13:15
brtknri cannot find part 00513:16
strigazipart 11 ?13:17
brtknri can see certs in /etc/kubernetes/certs13:17
brtknrbut no /etc/etcd/certs13:17
strigazifedora 27?13:17
brtknryes fa2713:17
strigazigood13:18
brtknri ran part11 without any problems13:18
strigaziwhat is inside?13:19
brtknrinside part-011?13:19
strigaziyes13:20
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brtknrsh -x /var/lib/cloud/scripts/<something>-part00513:22
brtknroops13:23
brtknrhttps://gist.github.com/4c86384d794392ce47333af218ef774d13:23
strigazibrtknr part 11 runs without any errors?13:23
brtknrAFAICS13:24
brtknrsudo sh +x /var/lib/cloud/instance/scripts/part-01113:24
brtknr  % Total    % Received % Xferd  Average Speed   Time    Time     Time  Current13:24
brtknr                                 Dload  Upload   Total   Spent    Left  Speed13:24
brtknr100  1407  100  1407    0     0   1407      0  0:00:01  0:00:01 --:--:--   98713:24
brtknrGenerating RSA private key, 4096 bit long modulus13:24
brtknr................................................................................................................................................................................................++13:24
brtknr.......................++13:24
brtknre is 65537 (0x010001)13:24
brtknrError Loading request extension section req_ext13:24
brtknr139739154462528:error:2206D06D:X509 V3 routines:X509V3_parse_list:invalid null value:crypto/x509v3/v3_utl.c:299:13:24
brtknr139739154462528:error:22097069:X509 V3 routines:do_ext_nconf:invalid extension string:crypto/x509v3/v3_conf.c:93:name=subjectAltName,section=IP:,IP:10.0.0.4,IP:127.0.0.1,IP:10.254.0.1,DNS:kubernetes,DNS:kubernetes.default,DNS:kubernetes.default.svc,DNS:kubernetes.default.svc.cluster.local13:24
brtknr139739154462528:error:22098080:X509 V3 routines:X509V3_EXT_nconf:error in extension:crypto/x509v3/v3_conf.c:47:name=subjectAltName, value=IP:,IP:10.0.0.4,IP:127.0.0.1,IP:10.254.0.1,DNS:kubernetes,DNS:kubernetes.default,DNS:kubernetes.default.svc,DNS:kubernetes.default.svc.cluster.localy13:24
brtknrwait completely didnt see the error13:24
brtknrError Loading request extension section req_ext13:25
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brtknrMy /etc/kubernetes/certs/server.conf looks like this: http://paste.openstack.org/show/722261/13:28
brtknrThere is an IP missing13:28
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strigazibrtknr: interesting13:29
strigazibrtknr: it is this ip KUBE_NODE_PUBLIC_IP=$(curl -s http://169.254.169.254/latest/meta-data/public-ipv4)13:30
strigazihttps://gist.github.com/brtknr/4c86384d794392ce47333af218ef774d#file-part-011-sh-L4013:30
brtknr KUBE_NODE_IP=$(curl -s http://169.254.169.254/latest/meta-data/local-ipv4)13:33
brtknrstrigazi: i didnt mean to paste that13:33
brtknrYes, it comes back empty at the moment13:33
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strigazibrtknr: this is it then13:46
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brtknrthink i fixed it14:14
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openstackgerritBharat Kunwar proposed openstack/magnum stable/queens: Support disabling floating IPs in swarm mode  https://review.openstack.org/57093714:41
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openstackgerritBharat Kunwar proposed openstack/magnum stable/queens: Support disabling floating IPs in swarm mode  https://review.openstack.org/57093715:01
openstackgerritBharat Kunwar proposed openstack/magnum stable/queens: Support disabling floating IPs in swarm mode  https://review.openstack.org/57093715:04
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openstackgerritBharat Kunwar proposed openstack/magnum stable/queens: Support disabling floating IPs in swarm mode  https://review.openstack.org/57093715:26
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openstackgerritPiotr Mrowczynski proposed openstack/magnum master: Strip signed certificate  https://review.openstack.org/57055715:35
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brtknrstrigazi: I am getting dependency failure for docker that requires me to manually invoke systemctl daemon-reload inside the node, in order to start docker.service15:56
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strigazidocker-swarm?15:57
brtknrstrigazi: No, k8s...15:57
strigazibrtknr: dependency on what?15:57
brtknrstrigazi: Although, I imagine docker swarm is probably having a similar issue... will look at that after fixing k8s15:57
strigazibrtknr: what is the error?15:58
brtknrMay 29 15:29:53 k8s-fa27-kbrrxuimp6kd-master-0.novalocal systemd[1]: Stopped Docker Application Container Engine.15:59
brtknrMay 29 15:36:23 k8s-fa27-kbrrxuimp6kd-master-0.novalocal systemd[1]: Dependency failed for Docker Application Container Engine.15:59
brtknrMay 29 15:36:23 k8s-fa27-kbrrxuimp6kd-master-0.novalocal systemd[1]: docker.service: Job docker.service/start failed with result 'dependency'.y15:59
brtknrSo it worked after I did `sudo systemctl daemon-reload`16:00
strigaziare you using overlay2 ?16:00
brtknrBut this is a manual process16:00
brtknryes16:00
strigaziok, but which dependency?16:00
brtknrI am not sure...16:06
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brtknrI will create a new cluster and re-examine, one sec16:07
brtknrnevermind, I think it worked this time...16:09
brtknrI have no clue as to why... it just did16:10
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brtknrAnother issue is that I am creating a cluster with floating IP disabled on swarm-mode. I can see that heat has created the stack successfully. However magnum fails to register that this is the case16:11
brtknrThis is a swarm-mode only issue, k8s is unaffected16:12
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fariddahi guys, do you know what is the latest version of k8s supported by pike magnum ?16:14
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strigaziv1.7.716:15
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fariddacool thx16:15
strigaziv1.8.1 might work as well16:15
strigaziv1.9.x or 10 no16:15
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fariddaok, i will try 1.8.116:16
strigaziI strongly recommend to have magnum in queens, but you need to have a way to deploy mixed versions. eg different vm or containers16:18
strigazimagnum queens works with other openstack services in newton and onwards16:19
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fariddai tried to deployed a queens version of magnum with a pike Openstack. But i had some issue between magnum and heat. I dont remember exactly but i can try again. I didn't know it was supported.16:22
brtknrstrigazi: is non-empty node_addresses and master_addresses one of the conditions for a CREATE_COMPLETE status?16:25
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openstackgerritMerged openstack/magnum master: k8s_fedora: Make CoreDNS config a SoftwareDeployment  https://review.openstack.org/56653319:40
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openstackgerritLingxian Kong proposed openstack/magnum master: Use Octavia for LoadBalancer type service  https://review.openstack.org/56717322:34
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