incusd/network/physical: Handle changes in parent value

Signed-off-by: Stéphane Graber <stgraber@stgraber.org>
Sponsored-by: Luizalabs (https://luizalabs.com)

internal/server/network/driver_physical.go

@@ -11,6 +11,7 @@ import (
 	"github.com/lxc/incus/v6/internal/server/cluster/request"
 	"github.com/lxc/incus/v6/internal/server/db"
 	"github.com/lxc/incus/v6/internal/server/ip"
+	"github.com/lxc/incus/v6/internal/server/network/ovs"
 	"github.com/lxc/incus/v6/shared/api"
 	"github.com/lxc/incus/v6/shared/logger"
 	"github.com/lxc/incus/v6/shared/util"
@@ -340,6 +341,24 @@ func (n *physical) Update(newNetwork api.NetworkPut, targetNode string, clientTy
 		return err
 	}
 
+	// Update OVS bridge entries (for dependent OVN networks).
+	if hostNameChanged {
+		vswitch, err := n.state.OVS()
+		if err == nil {
+			ovsBridge := fmt.Sprintf("incusovn%d", n.id)
+
+			err := vswitch.DeleteBridgePort(context.TODO(), ovsBridge, oldNetwork.Config["parent"])
+			if err != nil && err != ovs.ErrNotFound {
+				return err
+			}
+
+			err = vswitch.CreateBridgePort(context.TODO(), ovsBridge, newNetwork.Config["parent"], true)
+			if err != nil && err != ovs.ErrNotFound {
+				return err
+			}
+		}
+	}
+
 	revert.Success()
 
 	// Notify dependent networks (those using this network as their uplink) of the changes.