Cloud-announce October 2021

cloud-announce@lists.wikimedia.org

2 participants
4 discussions

Eliminating Debian Stretch in Cloud VPS
by Andrew Bogott 13 Oct '22

13 Oct '22

Debian Stretch's security support ends in mid 2022, and the Foundation's OS policy already discourages use of existing Stretch machines. That means that it's time for all project admins to start rebuilding your VMs with Bullseye (or, if you must, Buster.) Any webservices running in Kubernetes created in the last year or two are most likely using Buster images already, so there's no action needed for those. Older kubernetes jobs should be refreshed to use more modern images whenever possible. If you are still using the grid engine for webservices, we strongly encourage you to migrate your jobs to Kubernetes. For other grid uses, watch this space for future announcements about grid engine migration; we don't yet have a solution prepared for that. Details about the what and why for this process can be found here: https://wikitech.wikimedia.org/wiki/News/Stretch_deprecation Here is the deprecation timeline: March 2021: Stretch VM creation disabled in most projects July 6, 2021: Active support of Stretch ends, Stretch moves into LTS <- You are Here -> January 1st, 2022: Stretch VM creation disabled in all projects, deprecation nagging begins in earnest. Stretch alternatives will be available for tool migration in Toolforge May 1, 2022: All active Stretch VMs will be shut down (but not deleted) by WMCS admins. This includes Toolforge grid exec nodes. June 30, 2022: LTS support for Debian Stretch ends, all Stretch VMs will be deleted by WMCS admins

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Upgrade to paws JupyterHub 2021-10-26
by Michael DiPietro 25 Oct '21

25 Oct '21

An upgrade to JupyterHub is going out on 2021-10-26. There will be a new singleuser container as a result. Currently running containers may need restarting. Thank you, Michael DiPietro Cloud Services SRE

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Toolforge: need to stop webservice and start it again following changes to labels
by Brooke Storm 13 Oct '21

13 Oct '21

If you were running a Toolforge web tool in Kubernetes before the toollabs-webservice label changes were deployed on 2021-09-29 (https://sal.toolforge.org/tools?d=2021-09-29 <https://sal.toolforge.org/tools?d=2021-09-29>). You may need to run `webservice stop && webservice start` in order to ensure your replica sets have correct label expectations on them going forward. Otherwise you may find confusing states may happen when running webservice restart and similar commands. When I backfilled the new labels, I missed that you cannot change the label matching rules in a deployment retroactively. I apologize for any inconvenience. In summary: If you haven’t run a webservice stop since 2021-09-29 on your Kubernetes web service, it would be a good idea to stop and start your webservice now to prevent any confusing behavior from webservice in the future. -- Brooke Storm Staff SRE Wikimedia Cloud Services bstorm(a)wikimedia.org

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Toolforge kubernetes upgrade Tuesday, 2021-10-12 at 13:00 UTC
by Michael DiPietro 07 Oct '21

07 Oct '21

Next Tuesday we will be upgrading Kubernetes on toolforge. As part of the upgrade we will need to restart all pods. This will produce a brief interruption in web services and other tools that use kubernetes. Assuming your services are able to survive a restart, no action should be needed on your part. Thank you, Michael + the WMCS team

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Cloud-announce October 2021