Merge pull request kubernetes-sigs#2450 from oliviassss/log-enhance

log enhacement for subnet auto discovery

Author: k8s-ci-robot

pkg/networking/subnet_resolver.go

@@ -386,8 +386,10 @@ func (r *defaultSubnetsResolver) filterSubnetsByAvailableIPAddress(subnets []*ec
 for _, subnet := range subnets {
 if awssdk.Int64Value(subnet.AvailableIpAddressCount) >= availableIPAddressCount {
 filteredSubnets = append(filteredSubnets, subnet)
+} else {
+r.logger.Info("ELB requires at least 8 free IP addresses in each subnet",
+"not enough IP addresses found in ", awssdk.StringValue(subnet.SubnetId))
 }
 }
-r.logger.V(4).Info("Subnets filtered by Available IP Address: ", filteredSubnets)
 return filteredSubnets
 }