Merge pull request kubernetes#51795 from dims/bug-fix-51755

Automatic merge from submit-queue (batch tested with PRs 51984, 51351, 51873, 51795, 51634)

Bug Fix - Adding an allowed address pair wipes port security groups

**What this PR does / why we need it**:

Fix for cloud routes enabled instances will have their security groups
removed when the allowed address pair is added to the instance's port.

Upstream bug report is in:
gophercloud/gophercloud#509

Upstream bug fix is in:
gophercloud/gophercloud#510

**Which issue this PR fixes** *(optional, in `fixes #<issue number>(, fixes #<issue_number>, ...)` format, will close that issue when PR gets merged)*: fixes #

Fixes kubernetes#51755

**Special notes for your reviewer**:

Just an fix in vendored code. minimal changes needed in OpenStack cloud provider

**Release note**:

```release-note
NONE
```

pkg/cloudprovider/providers/openstack/openstack_loadbalancer.go

@@ -994,7 +994,7 @@ func (lbaas *LbaasV2) EnsureLoadBalancer(clusterName string, apiService *v1.Serv
 		}
 
 		portID := loadbalancer.VipPortID
-		update_opts := neutronports.UpdateOpts{SecurityGroups: []string{lbSecGroup.ID}}
+		update_opts := neutronports.UpdateOpts{SecurityGroups: &[]string{lbSecGroup.ID}}
 		res := neutronports.Update(lbaas.network, portID, update_opts)
 		if res.Err != nil {
 			glog.Errorf("Error occured updating port: %s", portID)

pkg/cloudprovider/providers/openstack/openstack_routes.go

@@ -121,7 +121,7 @@ func updateAllowedAddressPairs(network *gophercloud.ServiceClient, port *neutron
 	origPairs := port.AllowedAddressPairs // shallow copy
 
 	_, err := neutronports.Update(network, port.ID, neutronports.UpdateOpts{
-		AllowedAddressPairs: newPairs,
+		AllowedAddressPairs: &newPairs,
 	}).Extract()
 	if err != nil {
 		return nil, err
@@ -130,7 +130,7 @@ func updateAllowedAddressPairs(network *gophercloud.ServiceClient, port *neutron
 	unwinder := func() {
 		glog.V(4).Info("Reverting allowed-address-pairs change to port ", port.ID)
 		_, err := neutronports.Update(network, port.ID, neutronports.UpdateOpts{
-			AllowedAddressPairs: origPairs,
+			AllowedAddressPairs: &origPairs,
 		}).Extract()
 		if err != nil {
 			glog.Warning("Unable to reset allowed-address-pairs during error unwind: ", err)