diff --git a/inventory/group_vars/masakari_all.yml b/inventory/group_vars/masakari_all.yml
new file mode 100644
index 0000000000..df3f96d3cc
--- /dev/null
+++ b/inventory/group_vars/masakari_all.yml
@@ -0,0 +1,16 @@
+---
+# Copyright 2020, Jonathan Rosser BBC R&D
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+masakari_service_region: "{{ service_region }}"