In web service, it is possible to connect to gamelift-local which exists in local,
but it seems that it should not connect remotely.
I wonder if there is a way to make it possible.
Gamelift-local is designed to be a local simulation of GameLift. As such its runs a webserver using the localhost endpoint
You could easily tunnel requests to its ports, run proxy etc in front of it if you wanted to make remotely accessible on a host.
However at this time Gamelift does not offer any support for this.