Update logrotate for mirror server

Since this is currently unmanaged by openstack-infra, the default is
to rotate logs every week, 52 times.  Needless to say, we are running
out of HDD space.  Now we rotate every day, 7 times.  This will cut
down on the amount of HDD space apache2 logs require.

Change-Id: I7baf62a36432f5d322e7f63e8c89bd6205974ca8
Signed-off-by: Paul Belanger <pabelanger@redhat.com>

modules/openstack_project/manifests/mirror.pp

@@ -196,4 +196,16 @@ class openstack_project::mirror (
       File["${www_root}"],
     ]
   }
+
+  class { '::httpd::logrotate':
+    options => [
+      'daily',
+      'missingok',
+      'rotate 7',
+      'compress',
+      'delaycompress',
+      'notifempty',
+      'create 640 root adm',
+    ],
+  }
 }