clear pkg/proxy/port.go port_test.go file

pkg/proxy/util/utils.go

@@ -482,3 +482,15 @@ func WriteBytesLine(buf *bytes.Buffer, bytes []byte) {
 	buf.Write(bytes)
 	buf.WriteByte('\n')
 }
+
+// RevertPorts is closing ports in replacementPortsMap but not in originalPortsMap. In other words, it only
+// closes the ports opened in this sync.
+func RevertPorts(replacementPortsMap, originalPortsMap map[utilnet.LocalPort]utilnet.Closeable) {
+	for k, v := range replacementPortsMap {
+		// Only close newly opened local ports - leave ones that were open before this update
+		if originalPortsMap[k] == nil {
+			klog.V(2).Infof("Closing local port %s", k.String())
+			v.Close()
+		}
+	}
+}