OpenShift Container Platform

Configuring KubeVirt VM root volume

At cluster creation time, you can configure the storage class that is used to host the KubeVirt virtual machine (VM) root volumes by using the --root-volume-storage-class argument.

Procedure

To set a custom storage class and volume size for KubeVirt VMs, run a command as shown in the following example:
```
$ hcp create cluster kubevirt \
  --name my-hosted-cluster \
  --node-pool-replicas 2 \
  --pull-secret /user/name/pullsecret \
  --memory 8Gi \
  --cores 2 \
  --root-volume-storage-class ocs-storagecluster-ceph-rbd \
  --root-volume-size 64
```
- --name specifies the name of your hosted cluster.
- --node-pool-replicas specifies the worker count.
- --pull-secret specifies the path to your pull secret.
- --memory specifies a value for memory.
- --cores specifies a value for CPU.
- --root-volume-storage-class specifies a name of the storage class to host the KubeVirt VM root volumes.
- --root-volume-size specifies the volume size.
  
  As a result, you get a hosted cluster created with VMs hosted on persistent volume claims (PVCs).