Traefik as reverse proxy server to external web server

[qazero]

@lazyant

Hello, I'm looking into Traefik as a reverse proxy server where I can inject routes via API (other options are Consul with Nginx and I think, Envoy).

I want to have a proxy.example.com proxy that terminates SSL (irrelevant for this question) and as a backend has a number of ephemeral web servers http://<ip>:<port> which are independent (not part of a LB pool) and are not part of the proxy server or related to Kubernetes or Docker. So when the user goes to [proxy.example.com/](https://proxy.example.com/)<uuid> (using a path) or [proxy.example.com](https://proxy.example.com/)?uuid=<uuid> (using query) or using header key/values, the user connects transparently with one of the servers.

I'm trying Traefik for this, not even using API but hardcoding an example, and I can't make it work. Traefik forwards traffic using PathPrefix for example and I can see the index but then all the files in the destination web server (./js/somefile.js) are 404 since it's the incorrect path.

I've tried stripping the path in the middleware like this Reverse proxy to external host - #4 by ldez and like they say, it doesn't work (using the Query in the router is the same thing).
I've also looked at How to use traefik to proxy a https request to an external server? and similar posts here but I can't find a solution.

I've been searching and I can't find the solution for this, any ideas or Traefik not the right tool? thanks!

My basic config is below, but I've tried other things:

I too am having similar issues. Did you manage to figure it out? Hoping someone can chime in here.