Changed VolumeMode to PersistentVolumeBlock

operators/pkg/forge/virtualmachines.go

@@ -40,6 +40,10 @@ const (
 
 	// terminationGracePeriod -> the amount of seconds before a terminating VM is forcefully deleted.
 	terminationGracePeriod = 60
+
+	// PodBridgeNetworkLiveMigrationAnnotation enables live migration for VMs using the pod bridge network.
+	PodBridgeNetworkLiveMigrationAnnotation = "kubevirt.io/allow-pod-bridge-network-live-migration"
+	podBridgeNetworkLiveMigrationValue      = "true"
 )
 
 var (
@@ -54,8 +58,13 @@ var (
 func VirtualMachineSpec(instance *clv1alpha2.Instance, template *clv1alpha2.Template, environment *clv1alpha2.Environment) virtv1.VirtualMachineSpec {
 	return virtv1.VirtualMachineSpec{
 		Template: &virtv1.VirtualMachineInstanceTemplateSpec{
-			ObjectMeta: metav1.ObjectMeta{Labels: EnvironmentSelectorLabels(instance, environment)},
-			Spec:       VirtualMachineInstanceSpec(instance, template, environment),
+			ObjectMeta: metav1.ObjectMeta{
+				Labels: EnvironmentSelectorLabels(instance, environment),
+				Annotations: map[string]string{
+					PodBridgeNetworkLiveMigrationAnnotation: podBridgeNetworkLiveMigrationValue,
+				},
+			},
+			Spec: VirtualMachineInstanceSpec(instance, template, environment),
 		},
 		DataVolumeTemplates: []virtv1.DataVolumeTemplateSpec{
 			DataVolumeTemplate(NamespacedNameWithSuffix(instance, environment.Name).Name, environment),
@@ -247,7 +256,9 @@ func DataVolumeTemplate(name string, environment *clv1alpha2.Environment) virtv1
 		Spec: cdiv1beta1.DataVolumeSpec{
 			Source: DataVolumeSourceForge(environment),
 			PVC: &corev1.PersistentVolumeClaimSpec{
-				AccessModes: []corev1.PersistentVolumeAccessMode{corev1.ReadWriteOnce},
+				VolumeMode:       ptr.To(corev1.PersistentVolumeBlock),
+				AccessModes:      []corev1.PersistentVolumeAccessMode{corev1.ReadWriteMany},
+				StorageClassName: VMDataVolumeStorageClassName(environment),
 				Resources: corev1.VolumeResourceRequirements{
 					Requests: corev1.ResourceList{
 						corev1.ResourceStorage: environment.Resources.Disk,
@@ -257,3 +268,11 @@ func DataVolumeTemplate(name string, environment *clv1alpha2.Environment) virtv1
 		},
 	}
 }
+
+// VMDataVolumeStorageClassName forges the storage class name to be used for the DataVolume associated with a given environment.
+func VMDataVolumeStorageClassName(environment *clv1alpha2.Environment) *string {
+	if environment.StorageClassName != "" {
+		return ptr.To(environment.StorageClassName)
+	}
+	return nil
+}