diff --git a/overcloud.j2.yaml b/overcloud.j2.yaml
index cc7c29b137..6f506e47e5 100644
--- a/overcloud.j2.yaml
+++ b/overcloud.j2.yaml
@@ -769,6 +769,16 @@ resources:
       DeployIdentifier: {get_param: DeployIdentifier}
       UpdateIdentifier: {get_param: UpdateIdentifier}
 
+  GlobalConfig:
+    type: OS::Heat::Value
+    properties:
+      type: json
+      value:
+        map_merge:
+{% for role in roles %}
+          - get_attr: [{{role.name}}ServiceChainRoleData, value, global_config_settings]
+{% endfor %}
+
   MysqlRootPassword:
     type: OS::TripleO::RandomString
     properties:
@@ -1126,3 +1136,6 @@ outputs:
   AllNodesConfig:
     description: The config (hieradata) for all nodes.
     value: {get_attr: [allNodesConfig, all_nodes_config]}
+  GlobalConfig:
+    description: The global_config (hieradata).
+    value: {get_attr: [GlobalConfig, value]}