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Scheduled service migration : artifacts.ci.centos.org
by Fabian Arrotin 05 Sep '22

05 Sep '22

As announced some months ago, we are moving all CI infra components to new infra (mostly AWS) WRT Duffy api service itself, phase 1 was completed earlier this month (August) and phase 2 will be announced for October. Another service we need to migrate is https://artifacts.ci.centos.org, which is the next service we'll migrate next week. Migration is scheduled for """"Monday September 5th, 6:00 am UTC time"""". You can convert to local time with $(date -d '2022-09-05 06:00 UTC') The expected "downtime" should be really small, as it's will be just pointing DNS CNAME record to new host, and eventually (see below) last rsync between hosts. Worth knowing that CI tenants using that service in the past were relying on direct rsync access (tcp/873 and available only internally in dedicated CI VLAN) with a rsync secret. Due to the service being now publicly available on AWS, we decided to just disable plain rsync but allow rsync over ssh (or sftp/scp if you want), reusing your existing project keypair. More details available at https://sigs.centos.org/guide/ci/#artifacts-storage Don't forget to update your script for next monday or you'll not be able to push to the new storage server ! PS: while we consider all data "ephemeral" (and so to be discarded as there is also no backup at all for that temporary hosting solution), we can though migrate your existing data from old to new server. For that, please "opt-in" in the existing ticket so that we can keep track of projects we need to migrate. See ticket https://pagure.io/centos-infra/issue/906 Thanks for your understanding and patience. on behalf of the Infra team, -- Fabian Arrotin The CentOS Project | https://www.centos.org gpg key: 17F3B7A1 | twitter: @arrfab

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Network Issue on CentOS Infra/services
by Fabian Arrotin 29 Aug '22

29 Aug '22

Hi, We are currently suffering from a flapping network connectivity to the main DC where majority of the CentOS Infra is hosted. After some internal discussion, we confirmed that upstream link provider is aware of the issue and they are looking for a fix (but no ETA) Impacted services: - centos ci - git.centos.org - cbs.centos.org - mirror.centos.org (downstream consumer and having issues pulling content) - mirror.stream.centos.org (downstream consumer and having issues pulling content) - buildlogs.centos.org (same reason) We'll post an update when this will be finally resolved -- Fabian Arrotin The CentOS Project | https://www.centos.org gpg key: 17F3B7A1 | twitter: @arrfab

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Changes to CentOS CI: reminder of Phase 1 and 2
by Camila Granella 24 Aug '22

24 Aug '22

Hello everyone, This is a friendly reminder of the current and upcoming status of CentOS CI changes (check [1]). Projects that opted-in for continuing on CentOS CI have been migrated, and the new Duffy API is available. With that, *phase 0 has been completed*. Regarding *phase 1*, we are still working on a permanent fix for the DB Concurrency issues [2]. Also, as for our OpenShift new deployment, we have a staging environment up and running, and it should be available at the beginning of September 2022. In October 2022 we begin *phase 2* when we will work through the following items (these were also previously communicated in [1]): - legacy/compatibility API endpoint will handover EC2 instances instead of local seamicro nodes (VMs vs bare metal) - bare-metal options will be available through the new API only - legacy seamicro and aarch64/ThunderX hardware are decommissioned - only remaining "on-premises" option is ppc64le (local cloud)Feel free to reach out if you have any questions or concerns The final deadline for decommissioning the old infrastructure (*phase 3*) is *December 2022*. We will be communicating further until then, and meanwhile, reach out to any of us in case you have any questions. Regards, [1] [ci-users] Changes on CentOS CI and next steps: https://lists.centos.org/pipermail/ci-users/2022-June/004547.html [2] DB Concurrency issues: https://github.com/CentOS/duffy/issues/523 -- Camila Granella Associate Manager, Software Engineering Red Hat <https://www.redhat.com/> @Red Hat <https://twitter.com/redhat> Red Hat <https://www.linkedin.com/company/red-hat> Red Hat <https://www.facebook.com/RedHatInc> <https://www.redhat.com/>

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Duffy API sessions mismatch (not all the time)
by Fabian Arrotin 03 Aug '22

03 Aug '22

hi, We switched last Monday to new Duffy API and while we saw machines being requested (previous seamicro pool but also now VMs from AWS/EC2) and returned, from time to time tenants informed us of transient errors. Based on some troubleshooting, it seems that Duffy api was answering in the same second to either different tenant with same nodes (so nodes being handed over to different tenants) or even same tenant but with different session IDs (but same hostname) Nils (Duffy code author) is busy today looking at a fix and we'll let you know when we'll be able to roll it out. PS : that means that we'll have also to stop Duffy API and proceed with some DB clean-up operations to restart from a clean/fresh situation. That will mean that duffy will consider deployed node as unused and so will start reinstalling these (to start from clean situation). We'll let you know when we'll proceed with that hotfix push -- Fabian Arrotin The CentOS Project | https://www.centos.org gpg key: 17F3B7A1 | twitter: @arrfab

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Planned outage : Duffy CI infra migration phase 1 on August 1st
by Fabian Arrotin 28 Jul '22

28 Jul '22

As previously announced in June (see https://lists.centos.org/pipermail/ci-users/2022-June/004547.html and also https://www.youtube.com/watch?v=aqgs-3NnRmA), we'll migrate existing Duffy API service to the new Duffy v3, starting with Phase 1 . Migration is scheduled for """"Monday August 1st 7:00 am UTC time"""". You can convert to local time with $(date -d '2022-08-01 07:00 UTC') The expected API downtime will be under the 60 seconds (DNS TTL). Worth knowing: - new duffy api (in legacy mode) has currently less available nodes, but that will be resolved during the day (see below) - we'll have to wait ~6h (default maximum "lease" time for a test node) to be able to let new duffy api reinstall older seamicro nodes and so be available in the new duffy v3 pool (transitioning from old to new duffy pool) - currently running jobs will continue so to work, but when you'll hit new duffy api endpoint (DNS switch) to "return nodes" it will just answer that session doesn't exist (new one) but it's safe to ignore As soon as new duffy API is available you'll already be able to switch your workflow to new the Duffy API and so use the new features. Tenants/users documentation about how to interact with Duffy is available on https://sigs.centos.org/guide/ci/ (see the Duffy part of that documentation) That means that switching to EC2 nodes will be directly possible. During the day we'll tune the duffy nodepool configuration based on usage metrics. IMPORTANT remark : *only* projects/tenants that opted-in in the last 45 days are currently migrated (api and ssh keys), so if you haven't (yet), you can still opt-in, otherwise all your requests for duffy ephemeral nodes will be declined by new duffy api service next monday. In case of troubles, both Pedro (nick phsmoura) and myself (nick arrfab) will be also present in the #centos-ci irc channel on irc.libera.chat the whole day. Thanks for your understanding and patience. on behalf of the Infra team, -- Fabian Arrotin The CentOS Project | https://www.centos.org gpg key: 17F3B7A1 | twitter: @arrfab

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CentOS CI changes: opt-in reminder + update on OpenShift new deployment
by Camila Granella 11 Jul '22

11 Jul '22

Hello everyone, This is a friendly reminder to opt-in if you are interested in using CentOS CI for your project after the changes we announced last month (check "[ci-users] Changes on CentOS CI and next steps <https://lists.centos.org/pipermail/ci-users/2022-June/004547.html>"). *Projects will be migrated only if they opt-in*. Please,* opt-in by August 2022*, you can do that by simply replying to this email expressing your interest. Also, we now have a deadline for the OpenShift new deployment as per our last email. It should be up and running at the *beginning of September 2022* . Feel free to reach out if you have any questions or concerns, -- Camila Granella Associate Manager, Software Engineering Community Platform Engineering Red Hat <https://www.redhat.com/> @Red Hat <https://twitter.com/redhat> Red Hat <https://www.linkedin.com/company/red-hat> Red Hat <https://www.facebook.com/RedHatInc> <https://www.redhat.com/>

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Updated cico-workspace container image for openshift (please read)
by Fabian Arrotin 28 Jun '22

28 Jun '22

As you're all aware now, CentOS CI infra landscape will be different in the next weeks/months. One of the biggest change will be the introduction of Duffy v3 as replacement for the Duffy API and while there will be compatibility layer (allowing you to use your existing "cico" workflow), the goal is that each tenant will move to the new api, which itself then requires either: - you abusing directly the api endpoint (https://duffy.ci.centos.org/docs) - use the new duffy client (pip3.8 install --user duffy[client] with a config file We'd like to offer the duffy client natively in our cico-workspace pod/container that is automatically deployed for your jenkins jobs on openshift cluster. But if we trigger it, it will also come with something additional : the current centos Stream8 based container is using ansible 2.9.x, which is now deprecated, and kicking a container rebuild would automatically install ansible-core 2.12.x (present in el8 natively now) As you're aware, ansible-core doesn't have all the modules that you probably need to use for your workflow, so instead of install the meta-pkg ansible (which then install almost everything) you can come (reply to this thread) with a list of collections that you'd like to see in the base container (the less we have to pull, the better, to keep the container image as light as possible), we'd then add these to the container image. Thanks for your collaboration, -- Fabian Arrotin The CentOS Project | https://www.centos.org gpg key: 17F3B7A1 | twitter: @arrfab

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Fedora Rawhide images on the EC2 instances
by František Šumšal 23 Jun '22

23 Jun '22

Hello! After reading & discussing the recent news regarding the move to AWS, I wonder if it would be possible to provide Fedora Rawhide images along with the C8S and C9S ones (and maybe active stable Fedora releases as well). A bit of background: In the systemd project we have several jobs with utilize Vagrant to run an Arch Linux VMs, in which we run tests alongside the C8S/C9S jobs, to cover issues with the latest-ish kernel and other software, and to also hunt down security issues with the latest versions of ASan and UBSan. However, all this is held together by a lot of duct tape and sheer will power, and in the end it requires an EC2 Metal instance to run, due to the additional level of virtualization. If we were able to provision Rawhide instances directly (which should help us achieve the same goal as the Arch Linux VMs we currently use), that could, in theory, allow us to drop the requirement for Metal instances completely. As far as I know, there are Fedora Rawhide AMIs[0], which should make this much easier, but that's all I can say, since I have almost zero experience with AWS overall. Thank you! Cheers, Frantisek [0] https://fedoraproject.org/w/index.php?title=Test_Results:Current_Cloud_Test… -- PGP Key ID: 0xFB738CE27B634E4B

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reminder : CentOS Linux 8 EOL in december, including for ci test
by Fabian Arrotin 31 Jan '22

31 Jan '22

Just a quick reminder that CentOS Linux 8 is going EOL in december (see https://www.centos.org/centos-linux-eol/) So based on that plan, we'll also remove it from available ci infra at the same time as on mirror network, and if you'll ask for CentOS 8 you'll get no returned node to run your tests on. Start switching your tests to run on 8-stream instead, available since the beginning. -- Fabian Arrotin The CentOS Project | https://www.centos.org gpg key: 17F3B7A1 | twitter: @arrfab

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[infra] : Planned outage : CI Openshift/OCP environment
by Fabian Arrotin 18 Jan '22

18 Jan '22

Due to a storage migration (see https://pagure.io/centos-infra/issue/534), we'll have to shutdown and restart the openshift CI cluster (OCP) Migration is scheduled for """"Tuesday January 18th, 9:00 am UTC time"""". You can convert to local time with $(date -d '2022-01-18 09:00 UTC') The expected "downtime" is estimated to ~60 minutes , time needed to : - shutdown openshift workers and control plane nodes - last data sync between old and new nfs storage node - restart openshift control plane and workers nodes Thanks for your comprehending and patience. on behalf of the Infra team, -- -- Fabian Arrotin The CentOS Project | https://www.centos.org gpg key: 17F3B7A1 | twitter: @arrfab

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