Kubereboot/Kured: Kubernetes Reboot Daemon

Kured, a CNCF Sandbox project, is a Kubernetes DaemonSet that automates safe node reboots triggered by OS-level sentinel files like /var/run/reboot-required or custom commands. It enforces single-node-at-a-time reboots via API server locks, with cordon/drain/uncordon lifecycle management and optional deferral based on active Prometheus alerts. Platform and SRE teams managing self-managed Kubernetes clusters on Linux nodes gain hands-free patch compliance without manual intervention or custom scripting.