Environment variables needed about docker-ngrok

[russorat]

Hi @sylvain-combe-sonarsource thanks for the issue. I agree this makes sense. I've opened up an internal issue to track this.

We'd also be very happy to review a PR for something like this. If you want to chat about possible solutions, you can join us in https://ngrok.com/slack

[MrAdam]

It's still possible to configure it directly from the docker-compose file, by supplying a command argument, which gets appended to the entrypoint script, and passed onwards to ngrok

services:
  ngrok:
    image: ngrok/ngrok
    environment:
      - NGROK_AUTHTOKEN
    command: http https://host.docker.internal:8080 --log stdout