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32 lines
1.3 KiB
Plaintext
32 lines
1.3 KiB
Plaintext
// Module included in the following assemblies:
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//
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// * virt/node_maintenance/virt-setting-node-maintenance.adoc
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:_content-type: PROCEDURE
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[id="virt-setting-node-maintenance-cli_{context}"]
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= Setting a node to maintenance mode in the CLI
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Set a node to maintenance mode by marking it as unschedulable and using the `oc adm drain` command to evict or delete pods from the node.
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.Procedure
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. Mark the node as unschedulable. The node status changes to `NotReady,SchedulingDisabled`.
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+
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[source,terminal]
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----
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$ oc adm cordon <node1>
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----
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. Drain the node in preparation for maintenance. The node live migrates virtual machine instances that have the `LiveMigratable` condition set to `True` and the `spec:evictionStrategy` field set to `LiveMigrate`. All other pods and virtual machines on the node are deleted and recreated on another node.
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+
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[source,terminal]
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----
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$ oc adm drain <node1> --delete-emptydir-data --ignore-daemonsets=true --force
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----
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* The `--delete-emptydir-data` flag removes any virtual machine instances on the node that use `emptyDir` volumes. Data in these volumes is ephemeral and is safe to be deleted after termination.
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* The `--ignore-daemonsets=true` flag ensures that daemon sets are ignored and pod eviction can continue successfully.
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* The `--force` flag is required to delete pods that are not managed by a replica set or daemon set controller.
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