diff --git a/inventory/group_vars/all_surf.yml b/inventory/group_vars/all_surf.yml
new file mode 100644
index 0000000000000000000000000000000000000000..f85d4ee590d631251889b3a5e14c5cfc907d5d2e
--- /dev/null
+++ b/inventory/group_vars/all_surf.yml
@@ -0,0 +1,23 @@
+---
+
+tld: srv.mdx.incubator.geant.org
+all_yaml: https://gitlab.geant.org/TI_Incubator/mdx-saas-config/-/raw/main/inventory/group_vars/all_surf.yml
+
+proxies:
+  surf.mdx-proxy-1:
+    hostname: surf1
+    alias: 'mdx.lab.surf.nl'
+
+    mdproxy:
+      surf-test:
+        signer: 'http://signer.mdx.lab.surf.nl'
+        realm_alias: 'surf-test.mdx.lab.surf.nl'
+
+  surf.mdx-proxy-2:
+    hostname: surf2
+    alias: 'mdx.lab.surf.nl'
+
+    mdproxy:
+      surf-test:
+        signer: 'http://signer.mdx.lab.surf.nl'
+        realm_alias: 'surf-test.mdx.lab.surf.nl'