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Document (and execute) the upgrade process for the new Toolforge K8s cluster
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Description

I began this process at this comment T215531#5363490

That's a fine way to bury useful information, so this task is to produce and use a document from that experience and ensure that our clusters are off to a good start at 1.15.5 now that we have the packages for it thanks to T236824: Toolforge: new k8s: get new deb packages for 1.15.4 or 1.15.5.

Event Timeline

Bstorm created this task.Sat, Nov 9, 12:39 AM

The upgrade cycle is meant to be done on a six month process to stay ahead of certificate refreshes. CVEs could easily have us doing it more often than that. We should expect to be upgrading fairly often.

Bstorm triaged this task as Normal priority.Sat, Nov 9, 12:40 AM
Bstorm moved this task from Inbox to Important on the cloud-services-team (Kanban) board.