Adding check for udp rules for haproxy

Author: davidjumani

server/src/main/java/com/cloud/network/router/NetworkHelperImpl.java

@@ -798,6 +798,13 @@ public boolean validateHAProxyLBRule(final LoadBalancingRule rule) {
             }
             return false;
         }
+        String lbProtocol = rule.getLbProtocol().toLowerCase();
+        if (lbProtocol.equals(NetUtils.UDP_PROTO)) {
+            if (s_logger.isDebugEnabled()) {
+                s_logger.debug("Can't create LB with protocol " + lbProtocol + " as haproxy does not support udp");
+            }
+            return false;
+        }
 
         for (final LoadBalancingRule.LbStickinessPolicy stickinessPolicy : rule.getStickinessPolicies()) {
             final List<Pair<String, String>> paramsList = stickinessPolicy.getParams();