Creating a VM

Creating a VM Using a Manifest File

1. Create a VM as follows:

   kubectl create -f - <<EOF
   apiVersion: kubevirt.io/v1
   kind: VirtualMachine
   metadata:
     name: testvm
   spec:
     runStrategy: Halted
     template:
       metadata:
         labels:
           kubevirt.io/size: small
           kubevirt.io/domain: testvm
       spec:
         domain:
           devices:
             disks:
               - name: containerdisk
                 disk:
                   bus: virtio
               - name: cloudinitdisk
                 disk:
                   bus: virtio
             interfaces:
             - name: default
               masquerade: {}
           resources:
             requests:
               memory: 64M
         networks:
         - name: default
           pod: {}
         volumes:
           - name: containerdisk
             containerDisk:
               image: quay.io/kubevirt/cirros-container-disk-demo
           - name: cloudinitdisk
             cloudInitNoCloud:
               userDataBase64: SGkuXG4=
   EOF

   If the command is executed successfully, the following information is displayed:

   virtualmachine.kubevirt.io/testvm created

2. (The VM is stopped because runStrategy is set to Halted.) Check the VM status.

   kubectl get vms

   Example output:

   NAME     AGE   STATUS    READY
   testvm   73s   Stopped   False

Creating a VM with Specific Resources Using virtctl

The create vm subcommand of virtctl allows you to easily create your VirtualMachine resource manifest through the command line. By default, this command checks the instance type, preference setting, and inference function, and provides multiple flags to control the detailed settings of the VM. You can run the following command to view all available configuration items:

virtctl create vm -h

For example, to create a VM named vm-cirros with 4-GiB memory, run the following command:

virtctl create vm --name vm-cirros --memory "4Gi" | kubectl create -f -

For more information about creating a VM, see https://kubevirt.io/user-guide/user_workloads/lifecycle/.