Offset multiplication

cli/port.go

@@ -112,7 +112,7 @@ func (p PublishedPorts) Offset(offset int) *PublishedPorts {
 		for i, b := range v {
 			port, _ := nat.ParsePort(b.HostPort)
 			bindings[i].HostIP = b.HostIP
-			bindings[i].HostPort = fmt.Sprintf("%d", port+offset)
+			bindings[i].HostPort = fmt.Sprintf("%d", port*offset)
 		}
 		newPortBindings[k] = bindings
 	}

main.go

@@ -67,7 +67,7 @@ func main() {
 				cli.IntFlag{
 					Name:  "port-auto-offset",
 					Value: 0,
-					Usage: "Automatically add an offset (+ worker number) to the chosen host port when using `--publish` to map the same container-port from multiple k3d workers to the host",
+					Usage: "Automatically add an offset (* worker number) to the chosen host port when using `--publish` to map the same container-port from multiple k3d workers to the host",
 				},
 				cli.StringFlag{
 					// TODO: to be deprecated