Handle IPSec network encryption

Whether to enable IPSec network encryption using
SecureOverlay in Kubernetes

Related-Bug: PRODX-21133
Change-Id: I904da6190bd337de0b2f9e04e93848696da83f9d
diff --git a/de/heat-templates/top.yaml b/de/heat-templates/top.yaml
index 68a725a..6191c08 100644
--- a/de/heat-templates/top.yaml
+++ b/de/heat-templates/top.yaml
@@ -338,6 +338,9 @@
   availability_zone:
     type: string
     default: nova
+  secure_overlay_enabled:
+    type: boolean
+    default: false
 
 conditions:
   aio_deploy:
@@ -435,6 +438,7 @@
       hardware_metadata: { get_param: hardware_metadata}
       single_node: { get_param: single_node}
       availability_zone: { get_param: availability_zone }
+      secure_overlay_enabled: { get_param: secure_overlay_enabled }
 
   masters:
     type: OS::Heat::ResourceGroup