Run bindep tox on changes

Change-Id: Ie3d9fa60c6ed2b1406bbec9c23c6d0fc0afda8a4

.zuul.d/jobs.yaml

@@ -43,3 +43,14 @@
       Uses tox with the ``validate-projects`` environment.
     vars:
       tox_envlist: validate-projects
+
+- job:
+    name: requirements-tox-bindep
+    parent: openstack-tox
+    description: |
+      Run test for requirements project.
+
+      Uses tox with the ``bindep`` environment.
+    files: ^bindep.txt$
+    vars:
+      tox_envlist: bindep

.zuul.d/project.yaml

@@ -13,6 +13,9 @@
               - bindep.txt
         - openstack-tox-validate
         - requirements-tox-babel
+        - requirements-tox-bindep:
+            branches: ^(?!stable/(newton|ocata|pike)).*$
+            voting: false
         - requirements-tox-py27-check-uc
         - requirements-tox-py35-check-uc:
             branches: ^(?!stable/(newton|ocata|pike)).*$

bindep.txt

@@ -43,8 +43,7 @@ uuid-dev [platform:dpkg]
 python-numpy [python]
 python-yaml [python]
 
-# NOTE(jaegerandi): Temporarily needed for running as part of
+# NOTE(jaegerandi): Temporarily needed for part of OpenStack gates
-# OpenStack gates:
 # TODO(pabelanger): Remove in follow up patch.
 mysql-client [platform:dpkg]
 mysql-server [platform:dpkg]