Cloud-announce May 2022

cloud-announce@lists.wikimedia.org

3 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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Upgrading kubernetes on PAWS 2022-06-01
by Vivian Rook 25 May '22

25 May '22

On 2022-06-01 we will be upgrading kubernetes (from 1.20 to 1.21) on the PAWS cluster. This should take no action on your part. -- *Vivian Rook (They/Them)* Site Reliability Engineer Wikimedia Foundation <https://wikimediafoundation.org/>

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Brief NFS outages thursday, 15:00 UTC
by Andrew Bogott 12 May '22

12 May '22

We need to perform very brief maintenance on the servers that support the DUMPS and TOOLS NFS mounts. That means that (among other things) toolforge will be almost entirely broken for about 5 minutes. I expect a graceful recovery, but in the worst case I may need to reboot toolforge hosts (including the bastions), in which case some jobs will be interrupted. This downtime will happen on Thursday, the 12th of May, at 15:00 UTC. -Andrew + the WMCS team

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Toolforge Kubernetes upgrade on 2022-05-11
by Taavi Väänänen 05 May '22

05 May '22

Hi all, We'll be upgrading the Toolforge Kubernetes cluster next Wednesday (2022-05-11) starting at 16:00 UTC. As with previous updates, the expected impact is that web services and Toolforge Jobs Framework jobs may get restarted a couple of the times over the course of the few hours it takes for us to upgrade the entire cluster. Assuming your services are able to survive a restart, no action should be needed on your part. -- Taavi Väänänen (User:Majavah)

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Cloud-announce May 2022