Scalr Patch #3: Fix for exeptions with empty zonefile

# cat fix_loading_of_empty_zonefile.patch

--- /var/www/scalr/app/src/Scalr/Net/Dns/Bind/Transports/LocalFs.php    2011-04-28 06:00:27.000000000 -0400
+++ /var/www/scalr/app/src/Scalr/Net/Dns/Bind/Transports/LocalFs.php.new        2011-04-28 06:00:19.000000000 -0400
@@ -27,11 +27,10 @@
                public function getNamedConf()
                {
-                       $retval = @file_get_contents("{$this->zonesPath}/zones.include");
-                       if (!$retval)
+                       if (!@is_readable("{$this->zonesPath}/zones.include"))
                                throw new Exception("Cannot load zones.include file");
                        else
-                               return $retval;
+                               return @file_get_contents("{$this->zonesPath}/zones.include");
                }
                public function setNamedConf($content)

+ create a simbol-link:

(WARN!!! Based on WHERE your named and SCALR installed.)

# ln -s /var/named/etc/namedb/client_zones /var/named/client_zones

so we have:

#  ls -1l /var/named/ | grep client_zones
lrwxrwxrwx 1 root root    34 May 10 11:39 client_zones -> /var/named/etc/namedb/client_zones