added metadata to volume

main.tf

@@ -55,7 +55,10 @@ output "keypair_name" {
 }
 
 data "openstack_networking_network_v2" "external_net" {name = var.external_network}
-data "openstack_blockstorage_volume_v2" "disk" {id = var.volume_id}
+data "openstack_blockstorage_volume_v2" "disk" {
+  name = "var.data_volume"
+  metadata =  "id:volume_id"
+}
 
 # runs the ohpc-instance module - creates ohpc instance using variables defined above
 # calls functions from dmz-network, import-keypair, and floating-ip-address modules to get values created there for use