Routing problems with path prefix and priority

Traefik Traefik v3 (latest)
1

Hey everyone,

I am running two separate docker containers, one for a static web page and one for shlink (link shortener). Both are on the proxy network which I use to make my frontend services accessible to traefik (I don't expose any ports on these containers).

NOTE: Currently my NAME.link domain is using proxied DNS by Cloudflare, though this shouldn't be a problem as the access log looks fine with the Paths.

My challenge is the following: route all web traffic to the static web page, but use the same domain name with a path prefix /shlink for my link shortener.

Labels for static web page:

      - "traefik.enable=true"
      - "traefik.http.routers.welcome-page.rule=Host(`NAME.link`)
      - "traefik.http.routers.welcome-page.priority=1"
      - "traefik.http.routers.welcome-page.entrypoints=websecure"
      - "traefik.http.routers.welcome-page.middlewares=security-chain@file"

Labels for shlink:

      - "traefik.enable=true"
      - "traefik.http.routers.shlink.rule=Host(`NAME.link`) && PathPrefix(`/shlink`)"
      - "traefik.http.routers.shlink.priority=20"
      - "traefik.http.routers.shlink.entrypoints=websecure"
      - "traefik.http.services.shlink.loadbalancer.server.port=8080"
      - "traefik.http.routers.shlink.middlewares=security-chain@file,cors" # Delete CORS if necessary
      # CORS headers (Optiona?)
      - "traefik.http.middlewares.cors.headers.accesscontrolallowmethods=*"
      - "traefik.http.middlewares.cors.headers.accesscontrolalloworigin=*"
      - "traefik.http.middlewares.cors.headers.accesscontrolmaxage=100"
      - "traefik.http.middlewares.cors.headers.addvaryheader=true"

When I test my setup with 'https://lojewski.link/shlink/rest/health' I get the following access log message:

"GET /shlink/rest/health HTTP/2.0" 404 94 "-" "-" 274 "welcome-page@docker" "http://172.20.1.3:80" 6ms

Any ideas on why the routing doesn't work?

Another idea was to use the following rule (not sure if it makes sense and can catch /s without catching /scss) in case I want to use the path prefix /s which could pose problems with files like scss etc.

Host(`NAME.link`) && (Path(`/s`) || PathPrefix(`/s/`))
2

It looks correct, you don’t even need priority, as that is handled by Traefik automatically.

Share your full Traefik static and dynamic config, and Docker compose file(s).

Enable Traefik debug log (doc) and also Traefik access log in JSON format (doc). Check during startup and request.