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67 lines
2.0 KiB
Plaintext
67 lines
2.0 KiB
Plaintext
// Module included in the following assemblies:
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//
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// * virt/virtual_machines/vm_networking/virt-hot-plugging-network-interfaces.adoc
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:_mod-docs-content-type: PROCEDURE
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[id="virt-hot-unplugging-bridge-network-interface_{context}"]
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= Hot unplugging a secondary network interface by using the CLI
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You can remove a secondary network interface from a running virtual machine (VM).
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[NOTE]
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====
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Hot unplugging is not supported for Single Root I/O Virtualization (SR-IOV) interfaces.
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====
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.Prerequisites
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* Your VM must be running.
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* The VM must be created on a cluster running {VirtProductName} 4.14 or later.
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* The VM must have a bridge network interface attached.
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* You have installed the {oc-first}.
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.Procedure
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. Using your preferred text editor, edit the `VirtualMachine` manifest file and set the interface state to `absent`. Setting the interface state to `absent` detaches the network interface from the guest, but the interface still exists in the pod.
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+
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.Example VM configuration
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[source,yaml]
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----
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apiVersion: kubevirt.io/v1
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kind: VirtualMachine
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metadata:
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name: vm-fedora
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template:
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spec:
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domain:
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devices:
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interfaces:
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- name: defaultnetwork
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masquerade: {}
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# set the interface state to absent
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- name: <secondary_nic>
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state: absent # <1>
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bridge: {}
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networks:
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- name: defaultnetwork
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pod: {}
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- name: <secondary_nic>
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multus:
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networkName: <nad_name>
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# ...
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----
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<1> Set the interface state to `absent` to detach it from the running VM. Removing the interface details from the VM specification does not hot unplug the secondary network interface.
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. Save your changes and exit the editor.
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. For the new configuration to take effect, apply the changes by running the following command. Applying the changes triggers automatic VM live migration and removes the interface from the pod.
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[source,terminal]
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----
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$ oc apply -f <filename>.yaml
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----
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where:
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<filename>:: Specifies the name of your `VirtualMachine` manifest YAML file.
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