diff --git a/.zuul.yaml b/.zuul.yaml
new file mode 100644
index 000000000..f55ae2e2d
--- /dev/null
+++ b/.zuul.yaml
@@ -0,0 +1,5 @@
+- project:
+    name: openstack-infra/shade
+    check:
+      jobs:
+        - tox-py35-constraints
diff --git a/tox.ini b/tox.ini
index e4aa17752..9df877edd 100644
--- a/tox.ini
+++ b/tox.ini
@@ -6,6 +6,7 @@ skipsdist = True
 [testenv]
 usedevelop = True
 basepython = {env:SHADE_TOX_PYTHON:python2}
+passenv = UPPER_CONSTRAINTS_FILE
 install_command = pip install -c{env:UPPER_CONSTRAINTS_FILE:https://git.openstack.org/cgit/openstack/requirements/plain/upper-constraints.txt} {opts} {packages}
 setenv =
    VIRTUAL_ENV={envdir}