Add tenants

Change-Id: Ia6c21152c00c9380c17c559290ed98ff22cf767b
diff --git a/tests/fixtures/main.yaml b/tests/fixtures/main.yaml
new file mode 100644
index 0000000..f9ec378
--- /dev/null
+++ b/tests/fixtures/main.yaml
@@ -0,0 +1,4 @@
+tenants:
+  - name: openstack
+    include:
+      - layout.yaml