libvirt: Enable multiple PodVM image scenario

Enable support for multiple PodVM images for libvirt provider

Fixes #1282

Signed-off-by: Ajay Victor <ajvictor@in.ibm.com>

src/cloud-providers/libvirt/provider.go

@@ -79,6 +79,11 @@ func (p *libvirtProvider) CreateInstance(ctx context.Context, podName, sandboxID
 	}
 	logger.Printf("LaunchSecurityType: %s", vm.launchSecurityType.String())
 
+	if spec.Image != "" {
+		logger.Printf("Choosing %s as libvirt volume for the PodVM image", spec.Image)
+		p.libvirtClient.volName = spec.Image
+	}
+
 	result, err := CreateDomain(ctx, p.libvirtClient, vm)
 	if err != nil {
 		logger.Printf("failed to create an instance : %v", err)