How to handle sub-subdomains and an ssh-tunnel?

[neuronflow]

Hi,
thanks for the response. Yes, my caddy resides inside a docker on server A and maps services to other dockers running on it using the service id. Server B is connected with an ssh tunnel towards A. The four dockers from server B ,which has no direct access, are running on ports 8080, 6370, 8889, 3020. Therefore I established an ssh tunnel for these ports.

I can access the dockers on the host system with curl localhost:8080 for example. But you might be right, one reason I cannot reach those might be that caddy resides inside a docker?

I believe this might also be relevant here? Is there a replacement for transparent in v2 already?

V2: reverse-proxy transparent

Somewhat related question: can Caddy reverse proxy to the backend app using HTTP/2, or does it always convert to HTTP/1.1 like Nginx? I’m asking having read this.