Vercel Sandboxes now allow opening and binding to port 8080 as an ingress domain.

This port was used as a controller port, and that has now moved to port 23456.

import { Sandbox } from "@vercel/sandbox";

const sandbox = await Sandbox.create({

ports: [8080],

});

await sandbox.runCommand({

cmd: "python3",

args: ["-m", "http.server", "8080", "--bind", "0.0.0.0"],

detached: true,

});

console.log(`url: ${sandbox.domain(8080)}`);

Create a sandbox with port 8080 open

Learn more about Sandbox in the documentation.