Simplify for running off CloudLab, fix documentation
diff --git a/group_vars/all b/group_vars/all
new file mode 100644
index 0000000..fcf8e9b
--- /dev/null
+++ b/group_vars/all
@@ -0,0 +1,3 @@
+---
+# global defaults
+cloudlab: yes
\ No newline at end of file