kubectl cordon

Mark a node unschedulable

medium risk

interactive breakdown — edit the command and press Explain
$ 
⚠ Risks & cautions
What it does

Prevents scheduling without evicting running pods.

Examples
kubectl cordon node1Stop scheduling · explain & risk-check →
Related
kubectl drain kubectl uncordon
Open the full explainer →More in Kubernetes & Helm

Reference text is hand-written and may be incomplete — check man kubectl for your version. Test destructive commands on a non-production system first.