Add .zuul.yaml

This project is gated by Zuulv3 now; enable tests on this branch.

Change-Id: I1813afd9b4aace6ec2d74348ce7c035c41c0c6af
diff --git a/.zuul.yaml b/.zuul.yaml
new file mode 100644
index 0000000..9f0382b
--- /dev/null
+++ b/.zuul.yaml
@@ -0,0 +1,14 @@
+- project:
+    name: openstack-infra/zuul
+    check:
+      jobs:
+        - tox-docs
+        - tox-cover:
+            voting: false
+        - tox-pep8
+        - tox-py27
+    gate:
+      jobs:
+        - tox-docs
+        - tox-pep8
+        - tox-py27