Pass namespaced service name to cloudprovider's EnsureLoadBalancer

Also has an AWS implementation that plugs the service name into the ELB and SG.
Log the service name under GCE and OpenStack.
Fixes kubernetes#20668

pkg/cloudprovider/providers/openstack/openstack.go

@@ -46,6 +46,7 @@ import (
 	"k8s.io/kubernetes/pkg/api"
 	"k8s.io/kubernetes/pkg/api/resource"
 	"k8s.io/kubernetes/pkg/cloudprovider"
+	"k8s.io/kubernetes/pkg/types"
 )
 
 const ProviderName = "openstack"
@@ -654,8 +655,8 @@ func (lb *LoadBalancer) GetLoadBalancer(name, region string) (*api.LoadBalancerS
 // a list of regions (from config) and query/create loadbalancers in
 // each region.
 
-func (lb *LoadBalancer) EnsureLoadBalancer(name, region string, loadBalancerIP net.IP, ports []*api.ServicePort, hosts []string, affinity api.ServiceAffinity) (*api.LoadBalancerStatus, error) {
-	glog.V(4).Infof("EnsureLoadBalancer(%v, %v, %v, %v, %v, %v)", name, region, loadBalancerIP, ports, hosts, affinity)
+func (lb *LoadBalancer) EnsureLoadBalancer(name, region string, loadBalancerIP net.IP, ports []*api.ServicePort, hosts []string, serviceName types.NamespacedName, affinity api.ServiceAffinity) (*api.LoadBalancerStatus, error) {
+	glog.V(4).Infof("EnsureLoadBalancer(%v, %v, %v, %v, %v, %v)", name, region, loadBalancerIP, ports, hosts, serviceName)
 
 	if len(ports) > 1 {
 		return nil, fmt.Errorf("multiple ports are not yet supported in openstack load balancers")