Run track-upstream in a cronjob

After removing track-upstream from manage-projects, we need to run
track-upstream regularly. Add an hourly cronjob that will take care of
upstream tracking.

Change-Id: I7f5cb770e2af65fc2db9626eb1c8f01c3f3a64f1
Depends-On: I454b1ba400dc86abcc9b939564eb4eb7c324308c

doc/source/jeepyb.rst

@@ -179,7 +179,7 @@ Manage Projects
 ---------------
 
 Some projects may have upstreams defined in Jeepyb; the
-``manage-projects`` cron job will update these remotes so that their
+``track-upstream`` cron job will update these remotes so that their
 commits are available in Gerrit. It will also ensure that project metadata
 is set up as defined in projects.yaml.
 

modules/openstack_project/manifests/gerrit.pp

@@ -468,6 +468,16 @@ class openstack_project::gerrit (
             Class['jeepyb'],
           ],
       }
+      cron { 'track_upstream':
+        user        => 'root',
+        hour        => '*',
+        command     => '/usr/local/bin/track-upstream -v -l /var/log/track_upstream.log',
+        environment => 'PATH=/usr/bin:/bin:/usr/sbin:/sbin',
+        require     => [
+            File['/home/gerrit2/projects.yaml'],
+            Class['jeepyb'],
+        ],
+      }
 
       include logrotate
       logrotate::file { 'manage_projects.log':