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kured - Kubernetes Reboot Daemon

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Kured (KUbernetes REboot Daemon) is a Kubernetes daemonset that performs safe automatic node reboots when the need to do so is indicated by the package management system of the underlying OS.

  • Watches for the presence of a reboot sentinel file e.g. /var/run/reboot-required or the successful run of a sentinel command.
  • Utilises a lock in the API server to ensure only one node reboots at a time
  • Optionally defers reboots in the presence of active Prometheus alerts or selected pods
  • Cordons & drains worker nodes before reboot, uncordoning them after


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Kured is a Cloud Native Computing Foundation Sandbox project.

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