Traefik as reverse proxy server to external web server

Traefik Traefik v2
,
3

If you want to forward requests to dedicated servers, you need to create a dedicated router+service for every one. In a dynamic config, loaded via provider.file for example.

Just conceptually, not real config;

routers:
  uuid1:
    rule: Host(`example.com`) && PathPrefix (`/uuid1`)
    service: uuid1
  uuid2:
    rule: Host(`example.com`) && PathPrefix (`/uuid2`)
    service: uuid2

services:
  uuid1:
    loadbalancer.server.url: http://1.2.3.4
  uuid2:
    loadbalancer.server.url: http://1.2.3.5

If you don’t want the path prefix in the target request, you can use middleware stripprefix to remove it.

Note that regular web-apps are not easily running behind path prefix. They are usually not path aware and may send redirects and links without the prefix, breaking functionality. Use sub-domains instead. It usually works for pure API request.