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418 discussions

ci.centos.org jenkins update
by Vipul Siddharth 18 Dec '20

18 Dec '20

Hi folks, We are planning to update all the plugins (compatible) installed on ci.centos.org jenkins instance. I will do it tomorrow morning (Dec 18th) at 9am UTC. I will start preparing for shutdown then and all the jobs triggered post that will go in the queue until the instance has updated the plugin and restarted. I would also like to open a question to you all who are using OCP4 cluster. How would you want to manage Jenkins update for your namespace? There are multiple ways from them being auto updated whenever we update the cluster (this is by default that we use), time'd/self trigger updates, or updates on change in tags. I am interested in hearing your thoughts. Thank you -- Vipul Siddharth He/His/Him Fedora | CentOS CI Infrastructure Team

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[infra] Announced outage : hardware maintenance for network in main DC
by Fabian Arrotin 10 Nov '20

10 Nov '20

Due to some network switches upgrade in the DC hosting some community projects (including but not limited to CentOS), we'll have a large majority of our infra not reachable. Migration is scheduled for """"Tuesday November 10th, 2:00 am UTC time"""". You can convert to local time with $(date -d '2020-11-10 14:00 UTC') We unfortunately can't announce/give you any expected downtime as it can last for several hours (info I received through invite) but we'll try to restore all services/connectivity as soon as possible. Impacted services in that DC : - *all* Non impacted services (easier to just mention short list of things not in that DC, so items not listed below *will* be down) : - https://www.centos.org - https://forums.centos.org - https://lists.centos.org - mirrorlist.centos.org -- Fabian Arrotin The CentOS Project | https://www.centos.org gpg key: 17F3B7A1 | twitter: @arrfab

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Planned Outage: RDU-CC community cage switch upgrade 2020-11-10 14:00 UTC
by Vipul Siddharth 10 Nov '20

10 Nov '20

Hi folks, Something to be aware of : https://pagure.io/centos-infra/issue/146 "' There will be a planned outage to try and update the switches in the CentOS main cage. The outage window will be for 4 hours from 14:00 UTC until 18:00 UTC but should only be short bursts of switch outages. Affected services: CentOS CI CentOS build systems Other central services If the outage has issues which can not be fixed within the 4 hour window, the backup window for an outage is 2020-12-01 at the same time area. "' Thank you, if you have any questions, please comment them on the ticket -- Vipul Siddharth He/His/Him Fedora | CentOS Infrastructure Team

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Using BuildConfigs/ImageStreams from OpenShift in Duffy machines
by Niels de Vos 26 Oct '20

26 Oct '20

Hi! To speed up some of the testing we do on bare-metal machines provisioned through Duffy, I would like to pull pre-build images from the OpenShift registry. The images are built through a BuildConfig and placed in an ImageStream. Now, it seems that the Duffy provisioned bare-metal systems can not pull from the internal OpenShift registry: [root@n46 ~]# podman pull image-registry.openshift-image-registry.svc.apps.ocp.ci.centos.org:5000/ceph-csi/ceph-csi:test Trying to pull image-registry.openshift-image-registry.svc.apps.ocp.ci.centos.org:5000/ceph-csi/ceph-csi:test... Get https://image-registry.openshift-image-registry.svc.apps.ocp.ci.centos.org:…: dial tcp 172.19.0.254:5000: connect: no route to host Error: error pulling image "image-registry.openshift-image-registry.svc.apps.ocp.ci.centos.org:5000/ceph-csi/ceph-csi:test": unable to pull image-registry.openshift-image-registry.svc.apps.ocp.ci.centos.org:5000/ceph-csi/ceph-csi:test: unable to pull image: Error initializing source docker://image-registry.openshift-image-registry.svc.apps.ocp.ci.centos.org:5000/ceph-csi/ceph-csi:test: error pinging docker registry image-registry.openshift-image-registry.svc.apps.ocp.ci.centos.org:5000: Get https://image-registry.openshift-image-registry.svc.apps.ocp.ci.centos.org:…: dial tcp 172.19.0.254:5000: connect: no route to host I wonder if this is intentional, or if this is a little too strict? If this can not be allowed through the firewall, what is the recommendation to use these images? Maybe we should deploy our own registry and push the images there... Thanks! Niels

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devtools-ci-slave04 is offline
by Katerina Foniok 09 Oct '20

09 Oct '20

Hello guys, our jobs on ci.centos.org are pending because the *devtools-ci-slave04* is offline. Can someone take a look, please? One of the affected jobs is here <https://ci.centos.org/view/Devtools/job/devtools-rh-che-rh-che-prcheck-dev.…> . Thank you! Have a great day, Katka

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[unscheduled outage] hardware issue impacting CI services (including https://ci.centos.org)
by Fabian Arrotin 04 Oct '20

04 Oct '20

Yesterday (Saturday) evening we got zabbix notifications that some nodes in CI environment were unreachable. After a quick look, I discovered that it was an embedded network switch in a chassis hosting multiple nodes (including but not limited to jenkins node behind ci.centos.org) that went nuts. I tried a remote "hardware reset" and nodes were back online after ~10min. But this morning (sunday), I see through zabbix that same issue happened again, and in the hour after I already did the "hardware reset", but this time, even that doesn't work anymore. So that means that we have a network switch not working anymore. As that chassis (like almost *all* equipment in CI) *isn't* under warranty, we'll see on monday what can be done and how we give priority to try to dispatch services elsewhere (and that probably means then powering down other services , depending on priority that will be given), but it's easy to understand that we can't even give any ETA at this point. Thanks for your comprehending, -- Fabian Arrotin The CentOS Project | https://www.centos.org gpg key: 17F3B7A1 | twitter: @arrfab

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[infra outage] : nfs storage server hosting PVs for openshift
by Fabian Arrotin 02 Oct '20

02 Oct '20

we had a kernel panic on the storage box used as nfs server for openshift (both okd and ocp) and machine doesn't come back online due to md device refusing to start. machine is now in single-mode to analyze the situation and try to fix it. We'll send more details and progress when possible -- Fabian Arrotin The CentOS Project | https://www.centos.org gpg key: 17F3B7A1 | twitter: @arrfab

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Infra : scheduled hardware maintenance (Openshift/NFS)
by Fabian Arrotin 01 Oct '20

01 Oct '20

Due to a hardware maintenance that needs to take place on the NFS storage node used by openshift ("legacy" and current one - ocp ), we'll have to shutdown the openshift cluster, and then proceed with hardware maintenance on the NFS server (that itself needs to be powered down, no way to actually do that "online") Migration is scheduled for """"Wednesday September 30th, 12:00 pm UTC time"""". You can convert to local time with $(date -d '2020-09-30 12:00 UTC') The expected "downtime" is estimated to ~60 minutes , time needed to shutdown the machine, install new disks, restart the machine and also do some updates and tuning on the setup. For more informations about this, here are some relevant tickets that were created for the perf issue in openshift and nfs : https://pagure.io/centos-infra/issue/53 https://pagure.io/centos-infra/issue/105 https://pagure.io/centos-infra/issue/85 https://pagure.io/centos-infra/issue/26 <subliminal message> PS : worth noting that while we'll investigate reports on new ocp cluster, we'll probably not spend time investigating in the old/legacy one, that projects are supposed to migrate away from soon, as the legacy openshift setup will disappear soon (see https://pagure.io/centos-infra/issue/16) </subliminal message> Thanks for your comprehending and patience. on behalf of the CI Infra team, -- Fabian Arrotin The CentOS Project | https://www.centos.org gpg key: 17F3B7A1 | twitter: @arrfab

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Infra Pre-Announce : moving CI ssh jump host soon, please read !
by Fabian Arrotin 07 Sep '20

07 Sep '20

Hi, As you noticed recently, we started to refresh the infra used for CentOS CI (not the hardware, still the same, but the software stack and the way to control/manage it). One of the identified nodes still being used and that needs to be converted to the new infra layout is the ssh jumphost (see https://wiki.centos.org/QaWiki/CI/GettingStarted#How_to_use_it) Normally, some of you have switched to OpenShift workload, (including to the new Openshift 4/OCP setup that went live recently) but some Projects are still on the old setup with sometimes a need to reach dedicated/shared VMs acting as Jenkins agent[s], connected to Jenkins behind https://ci.centos.org. We have already provisioned a new VM in the new setup (that can reach the whole CI subnet and VLAN) but here are some points to consider, reason why we wanted to pre-announce long time in advance before we do the real switch) : * New ssh jump host is CentOS 8 based, versus CentOS 6, meaning that if you used ssh-dss key (instead of ssh-rsa), you'll *not* be able to connect through that new host. We already identified such keys and Vipul will try (when it's tied to a real email address for the project) to reach out. But better to announce it here too, so that you have time to ask us to reflect a change (through ticket on https://pagure.io/centos-infra/issues) * Old VM allowed shell access, but it will be disallowed on the new one (there is no need for shell on that intermediate node anyway). Reminder that you can configure your ssh config to directly use ProxyCommand or even now ProxyJump (on recent openssh-client). See https://wiki.centos.org/TipsAndTricks/SshTips/JumpHost) * Because the host has a new sshd_host_key, it will come with a new fingerprint too, so if you have automation and that you don't trust our CA already, the fingerprint for new host will be : [fingerprint] rsa=3072 SHA256:n7y0qZS/FvhjaskOBds3TTKQh5EtgNQ25E7cmTNBATg (RSA) rsa_md5=3072 MD5:9e:83:46:d0:c5:8a:a0:94:50:10:58:9d:af:ca:50:19 (RSA) ecdsa=256 SHA256:ZQacwDsWkKBYL9HJJYwHr94Ny1sMhHMDnz9GiLFb8Uc (ECDSA) ecdsa_md5=256 MD5:dd:24:ea:6a:fd:8b:29:3d:1d:d0:a9:32:8c:b2:ea:62 (ECDSA) As we know that it's August and that some of you are probably on PTO (coming back or leaving soon), after discussion with Vipul , David and myself, we considered that we'll probably go live around beginning of September. Should you have any question around that migration, feel free to reply to this thread (ideally on dedicated ci-users mailing list), or on irc.freenode.net (#centos-ci) On behalf of the CentOS CI infra team, -- Fabian Arrotin The CentOS Project | https://www.centos.org gpg key: 17F3B7A1 | twitter: @arrfab

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New CentOS Infra/CBS/CI issues/requests tracker, please read
by Fabian Arrotin 05 Aug '20

05 Aug '20

Hi all, As you probably noticed in the last weeks/months, we have a stronger collaboration and synergy with the Fedora infrastructure team. Combining forces and resources help both projects at the same time, as majority of the CentOS contributors are already Fedora contributors and probably the same in reverse. It's not a secret (it was announced through CPE weekly mails on this list) that the CentOS board approved the idea of merging authentication systems in a near future (as an example). This email to let you know that all RFE/issues concerning the following areas should be reported to a new issues tracker : https://pagure.io/centos-infra/issues/ , to adapt the same workflow as the Fedora infra team is already using. ( see https://docs.fedoraproject.org/en-US/cpe/working_with_us/ ) Concerned areas : - https://cbs.centos.org (Community BuildSystem, aka koji) - Special Interest Groups requests (for mirror, resources, etc) - https://ci.centos.org (All CI infra ecosystem) - Everything around CentOS Infra (mirror issues, etc) We have already moved/migrated for example the (opened) tickets that were filed under the "Buildsys" , "CI" and "Infrastructure" categories to the new issues tracker. The idea being to *not* request work to be done through IRC but rather through new infra issues tracker. Imported tickets will be discussed there and worked on (reviewed on a daily basis) after having been prioritized Should you feel a need to discuss this new process, feel free to do so in #centos-devel on irc.freenode.net or on this centos-devel list. Kind Regards, -- Fabian Arrotin The CentOS Project | https://www.centos.org gpg key: 17F3B7A1 | twitter: @arrfab

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