infra/stacks/k8s-version-upgrade
Viktor Barzin c04efa3d3a
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k8s-version-upgrade: move detection to nightly 23:00 UTC (overnight upgrades)
Disruptive node drains should run when the cluster is idle. Move the
k8s-version-check detection CronJob from 12:00 UTC (noon) to 23:00 UTC
(00:00 London) — overnight, low usage, and clear of the kured OS-reboot window
(01:00-05:00 UTC) so the two drain pipelines never overlap. (Viktor, 2026-06-17.)

  - stacks/k8s-version-upgrade/main.tf: var.schedule default 0 12 → 0 23 * * *.
  - scripts/upgrade_state.sh: next_scheduled_run_utc now computes the 23:00 slot
    (was next_daily_noon_utc).
  - docs (runbook, architecture) + upgrade-state SKILL: schedule references
    updated to 23:00 UTC nightly.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
2026-06-17 18:16:32 +00:00
..
scripts k8s-version-upgrade: dynamic worker enumeration + IP-based SSH (auto-cover all/new nodes) 2026-06-17 16:56:02 +00:00
job-template.yaml fix: restore tree dropped by 6d224861; land stem95su gdrive-sync (10m) [ci skip] 2026-06-09 08:45:33 +00:00
main.tf k8s-version-upgrade: move detection to nightly 23:00 UTC (overnight upgrades) 2026-06-17 18:16:32 +00:00
terragrunt.hcl fix: restore tree dropped by 6d224861; land stem95su gdrive-sync (10m) [ci skip] 2026-06-09 08:45:33 +00:00