Add read-only tracking superproject for OpenStack

There are use cases for keeping track of the sequence of commits as
collected by zuul is important. This repo is intended to be only updated
by gerrit's subproject subscription feature.

Change-Id: Ia6a5b45dc766731c947cbf7b03933031bc5c2217

modules/openstack_project/files/gerrit/acls/openstack/openstack.config

@@ -0,0 +1,20 @@
+[access "refs/for/refs/*"]
+        exclsiveGroupPermissions = Push
+        push = group Release Managers
+[access "refs/heads/*"]
+        exclusiveGroupPermissions = label-Code-Review label-Approved
+        label-Code-Review = -2..+2 group Release Managers
+        label-Approved = +0..+1 group Release Managers
+        label-Code-Review = -1..+1 group Registered Users
+[access "refs/heads/stable/*"]
+        exclusiveGroupPermissions = label-Code-Review label-Approved
+        label-Code-Review = -2..+2 group Release Managers
+        label-Approved = +0..+1 group Release Managers
+        label-Code-Review = -1..+1 group Registered Users
+[project]
+        state = active
+[receive]
+        requireChangeId = true
+        requireContributorAgreement = true
+[submit]
+        mergeContent = true

modules/openstack_project/files/zuul/layout.yaml

@@ -848,6 +848,12 @@ projects:
       - periodic-nova-python26-stable-grizzly
       - periodic-nova-python27-stable-grizzly
 
+  - name: openstack/openstack
+    check:
+      - gate-noop
+    gate:
+      - gate-noop
+
   - name: openstack/oslo-incubator
     check:
       - gate-oslo-incubator-requirements

modules/openstack_project/templates/review.projects.yaml.erb

@@ -102,6 +102,8 @@
 - project: openstack/object-api
 - project: openstack/openstack-chef
 - project: openstack-infra/config
+- project: openstack/openstack
+  upstream: git://github.com/emonty/openstack
 - project: openstack/openstack-manuals
 - project: openstack/operations-guide
   upstream: git://github.com/jeblair/openstack-ops