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Document a k8s upgrade policy: ensure to always use one of the latest 5 minor versions #3248

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Tracked by #3469
consideRatio opened this issue Oct 10, 2023 · 0 comments · Fixed by #3511
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Tracked by #3469
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nominated-to-be-resolved-during-q4-2023 Nomination to be resolved during q4 goal of reducing the technical debt

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@consideRatio
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consideRatio commented Oct 10, 2023

k8s upgrade policy proposal

  1. I propose that we establish a k8s upgrade policy by documenting it here in our docs.
  2. I propose that the format of our k8s upgrade policy initially is to ensure we use a k8s version (in api-plane and nodes) that is at least X minor versions from the latest available at any given time.
  3. I propose that we pick X to be 5 initially, and then raise the ambition in the future to make it 4.
    Currently with k8s 1.28 being the latest minor and 1.29 being released in december 2023, a X=5 policy means we should already have our clusters versioned 1.28, 1.27, 1.26, 1.25, or 1.24. We actually comply with this policy for the moment!

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nominated-to-be-resolved-during-q4-2023 Nomination to be resolved during q4 goal of reducing the technical debt
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