diff --git a/inventory/group_vars/all.yml b/inventory/group_vars/all.yml
new file mode 100644
index 0000000..fa7801c
--- /dev/null
+++ b/inventory/group_vars/all.yml
@@ -0,0 +1,7 @@
+---
+children:
+  all:
+    vars:
+      ansible_user: master
+      ansible_python_interpreter: "/usr/bin/python3"
+...