Merge pull request #17892 from juliancheal/fix_invalid_zone

Ensure Zone data is Valid
(cherry picked from commit 2b06c5d)

Fixes https://bugzilla.redhat.com/show_bug.cgi?id=1599349

lib/vmdb/config/validator.rb

@@ -141,6 +141,13 @@ def server(data)
           errors << [:session_store, "session_store, \"#{data.session_store}\", invalid. Should be one of \"sql\", \"memory\", \"cache\""]
         end
 
+        if keys.include?(:zone)
+          unless Zone.in_my_region.find_by(:name => data.zone)
+            valid = false
+            errors << [:zone, "zone, \"#{data.zone}\", invalid. Should be a vaild Zone"]
+          end
+        end
+
         return valid, errors
       end