[{"data":1,"prerenderedAt":15},["ShallowReactive",2],{"blog-tag-ja-rolling-upgrade":3},[4],{"path":5,"title":6,"description":7,"date":8,"tags":9},"\u002Fblog\u002Fja\u002Fk3s-system-upgrade-controller-plan-stuck-node-drain","Planは消えずに残っていた。K3sのsystem-upgrade-controllerが止まり続けた理由","K3sのsystem-upgrade-controllerで自動アップグレードを組んだら、特定ノードだけPlanが進まなくなった。原因はPodDisruptionBudgetとtaintの盲点。仕組みと復旧手順、Kuboでの解決策を解説する。","2026-10-31",[10,11,12,13,14],"k3s","kubernetes","system-upgrade-controller","rolling-upgrade","edge-computing",1793798766550]