How to set the ServicePort in launchsettings.json for docker

Question

So recently docker-integration in VS2017 has removed the docker project and simply works from launchsettings.json and a Dockerfile.

In my launchsettings.json I have the following:

"Docker": {
      "commandName": "Docker",
      "launchBrowser": true,
      "launchUrl": "{Scheme}://localhost:{ServicePort}/swagger"
    }

Whenever I debug the application a random port is assigned.

If I include a valid sslPort in the iisExpress settings it takes the correct http and https ports from there, however my application is not currently using https so I'd rather not bind an unused port.

---

The below iisExpress settings seem to influence the docker settings. While below gives me what I want (a consistent binding from 81:80, host:container) I would prefer that port 444 was not also bound, or that the settings within another profile influence a different profile.

"iisExpress": {
      "applicationUrl": "http://localhost:81/",
      "sslPort": 444 (takes a random port if set to 0)
    }

Any ideas? I would just like to be able to set the ServicePort / default port to a known value.

Answer 1

The Docker section in launchsettings.json supports now httpPort and sslPort settings:

"Docker": {
      ... 
    "httpPort": 8080
}