delete port left over by err openstackmachine

controllers/openstackcluster_controller.go

@@ -142,6 +142,11 @@ func reconcileDelete(ctx context.Context, scope *scope.Scope, patchHelper *patch
 
 	clusterName := fmt.Sprintf("%s-%s", cluster.Namespace, cluster.Name)
 
+	if err = networkingService.DeletePorts(openStackCluster); err != nil {
+		handleUpdateOSCError(openStackCluster, errors.Errorf("failed to delete ports: %v", err))
+		return reconcile.Result{}, errors.Wrap(err, "failed to delete ports")
+	}
+
 	if openStackCluster.Spec.APIServerLoadBalancer.Enabled {
 		loadBalancerService, err := loadbalancer.NewService(scope)
 		if err != nil {

pkg/cloud/services/networking/port.go

@@ -18,6 +18,7 @@ package networking
 
 import (
 	"fmt"
+	"strings"
 	"time"
 
 	"github.com/gophercloud/gophercloud/openstack/networking/v2/extensions/portsbinding"
@@ -243,6 +244,32 @@ func (s *Service) DeletePort(eventObject runtime.Object, portID string) error {
 	return nil
 }
 
+func (s *Service) DeletePorts(openStackCluster *infrav1.OpenStackCluster) error {
+	networkID := openStackCluster.Spec.Network.ID
+	portList, err := s.client.ListPort(ports.ListOpts{
+		NetworkID:   networkID,
+		DeviceOwner: "",
+	})
+	if err != nil {
+		if capoerrors.IsNotFound(err) {
+			return nil
+		}
+		return fmt.Errorf("list ports of network %q: %v", networkID, err)
+	}
+
+	for _, port := range portList {
+		if strings.Contains(port.Name, openStackCluster.Name) {
+			err := s.DeletePort(openStackCluster, port.ID)
+			if capoerrors.IsNotFound(err) {
+				continue
+			}
+			return fmt.Errorf("delete port %s of network %q failed : %v", port.ID, networkID, err)
+		}
+	}
+
+	return nil
+}
+
 func (s *Service) GarbageCollectErrorInstancesPort(eventObject runtime.Object, instanceName string) error {
 	portList, err := s.client.ListPort(ports.ListOpts{
 		Name: instanceName,