Frankenphp with Ngrok not working

[laferte-tech]

Hi,

I'm having trouble to make Ngrok work with Frankenphp with docker on my MacOs.

Using the default config for frankenphp:

docker run \
    -e CADDY_GLOBAL_OPTIONS="debug"  \
    -e SERVER_NAME="127.0.0.1, 172.17.0.2, 172.17.0.3" \
    -v $PWD:/app/public \
    -p 80:80 -p 443:443 -p 443:443/udp \
    dunglas/frankenphp

and following ngrok advices for docker:

https://ngrok.com/docs/using-ngrok-with/docker/

using different kind of setups, none is working:

docker run -it -e NGROK_AUTHTOKEN=abc ngrok/ngrok:latest http host.docker.internal:443
docker run -it -e NGROK_AUTHTOKEN=abc ngrok/ngrok:latest http host.docker.internal:80
docker run -it -e NGROK_AUTHTOKEN=abc ngrok/ngrok:latest http https://localhost
docker run -it -e NGROK_AUTHTOKEN=abc ngrok/ngrok:latest http https://127.0.0.1

For some configs, ngrok tells me this:

dial tcp 127.0.0.1:443: connect: connection refused

so i tried to add 127.0.0.1 to frankenphp following the known issues but it's not working also.

As anyone any idea to make ngrok work?

Thanks

[laferte-tech]

For those who are seeing this later, i found the solution. I needed to augment the headers and add the host with localhost. Something like this:

ngrok http --request-header-add='host: localhost' https://localhost

I also skipped docker and install Ngrok as a regular application on Mac. I didn't try with docker, maybe it's working also.