diff --git a/deployment/nova/nova-libvirt-container-puppet.yaml b/deployment/nova/nova-libvirt-container-puppet.yaml
index e98b3a1c5e..5baef3d5b2 100644
--- a/deployment/nova/nova-libvirt-container-puppet.yaml
+++ b/deployment/nova/nova-libvirt-container-puppet.yaml
@@ -236,6 +236,10 @@ parameters:
     default: 'all'
     tags:
       - role_specific
+  NovaLibvirtOptVolumes:
+    default: []
+    description: list of optional volumes to be mounted
+    type: comma_delimited_list
 
 conditions:
 
@@ -709,6 +713,7 @@ outputs:
               list_concat:
                 - {get_attr: [ContainersCommon, volumes]}
                 - {get_attr: [NovaLibvirtLogging, volumes]}
+                - {get_param: NovaLibvirtOptVolumes}
                 -
                   - /etc/ssh/ssh_known_hosts:/etc/ssh/ssh_known_hosts:ro
                   - /var/lib/kolla/config_files/nova_libvirt.json:/var/lib/kolla/config_files/config.json:ro