snippetbashTip
kubectl drain — Drain a node in preparation for maintenance by marking it unschedulable and evicting all pods. See a
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kubectl drainmaintenancecommandnodeclipreparationfordrain
Problem
How to use the
kubectl drain command: Drain a node in preparation for maintenance by marking it unschedulable and evicting all pods. See also: kubectl cordon, kubectl uncordon. More information: <https://kubernetes.io/docs/reference/kubectl/generated/kubectl_drain/>.Solution
kubectl drain — Drain a node in preparation for maintenance by marking it unschedulable and evicting all pods. See also: kubectl cordon, kubectl uncordon. More information: <https://kubernetes.io/docs/reference/kubectl/generated/kubectl_drain/>.Drain a node:
kubectl drain {{node_name}}Drain a node, ignoring DaemonSet-managed pods:
kubectl drain {{node_name}} --ignore-daemonsetsDrain a node and delete pods using emptyDir volumes (local data will be lost):
kubectl drain {{node_name}} --ignore-daemonsets --delete-emptydir-dataDrain a node, forcing eviction of pods not managed by a controller:
kubectl drain {{node_name}} --forceDrain a node with a custom grace period for pod termination:
kubectl drain {{node_name}} --grace-period {{seconds}}Drain a node, evicting only pods that match a label selector:
kubectl drain {{node_name}} --pod-selector {{label_key}}={{label_value}}Drain a node with a timeout:
kubectl drain {{node_name}} --timeout {{duration}}Preview the drain operation without actually evicting pods (dry run):
kubectl drain {{node_name}} --dry-run={{none|server|client}}Code Snippets
Drain a node
kubectl drain {{node_name}}Drain a node, ignoring DaemonSet-managed pods
kubectl drain {{node_name}} --ignore-daemonsetsDrain a node and delete pods using emptyDir volumes (local data will be lost)
kubectl drain {{node_name}} --ignore-daemonsets --delete-emptydir-dataDrain a node, forcing eviction of pods not managed by a controller
kubectl drain {{node_name}} --forceDrain a node with a custom grace period for pod termination
kubectl drain {{node_name}} --grace-period {{seconds}}Context
tldr-pages: common/kubectl drain
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