@@ -637,18 +637,18 @@ func parsePortMap(portMap nat.PortMap) ([]*api.PortConfig, error) {

 	exposedPorts := make([]*api.PortConfig, 0, len(portMap))

 	for portProtocol, mapping := range portMap {

-		parts := strings.SplitN(string(portProtocol), "/", 2)

-		if len(parts) != 2 {

+		p, proto, ok := strings.Cut(string(portProtocol), "/")

+		if !ok {

 			return nil, fmt.Errorf("invalid port mapping: %s", portProtocol)

 		}

-		port, err := strconv.ParseUint(parts[0], 10, 16)

+		port, err := strconv.ParseUint(p, 10, 16)

 		if err != nil {

 			return nil, err

 		}

 		var protocol api.PortConfig_Protocol

-		switch strings.ToLower(parts[1]) {

+		switch strings.ToLower(proto) {

 		case "tcp":

 			protocol = api.ProtocolTCP

 		case "udp":

@@ -656,7 +656,7 @@ func parsePortMap(portMap nat.PortMap) ([]*api.PortConfig, error) {

 		case "sctp":

 			protocol = api.ProtocolSCTP

 		default:

-			return nil, fmt.Errorf("invalid protocol: %s", parts[1])

+			return nil, fmt.Errorf("invalid protocol: %s", proto)

 		}

 		for _, binding := range mapping {

@@ -114,11 +114,11 @@ func (e *executor) Describe(ctx context.Context) (*api.NodeDescription, error) {

 	// parse []string labels into a map[string]string

 	labels := map[string]string{}

 	for _, l := range info.Labels {

-		stringSlice := strings.SplitN(l, "=", 2)

+		k, v, ok := strings.Cut(l, "=")

 		// this will take the last value in the list for a given key

 		// ideally, one shouldn't assign multiple values to the same key

-		if len(stringSlice) > 1 {

-			labels[stringSlice[0]] = stringSlice[1]

+		if ok {

+			labels[k] = v

 		}

 	}