Help - is there any way to trace WHY rules are not being matched? Simple 404 is not too helpful

Traefik Traefik v2
1

I seem to be having an issue with my rules. I can get all of them working about 90% of the time which seems really odd.

Here is one example
Traefik dashboard is accessible from 2 of my computers only -- I have 3 others and I get a 404 error. The same IP address is resolved for the same domain, I am using the same browser, same version, same OS even. This makes no sense to me at all.

So my question is, is there a way to turn on any sort of logging that shows a trace of what happens when a request comes in to traeifk and how the rules are evaluated?

Here is my compose file

version: "3.7"

services:

  traefik:
    container_name: traefik
    image: traefik:latest
    env_file: 
      - .env
      - .env.traefik
    volumes:
      - /mnt/AppData/network/traefik/certs:/certs:rw 
      - /mnt/AppData/network/traefik/logs:/logs:rw 
      - /mnt/AppData/network/traefik/letsencrypt:/letsencrypt:rw 
      - /mnt/AppData/network/traefik/config:/etc/traefik:rw 
      - /var/run/docker.sock:/var/run/docker.sock:ro 
    networks:
      - public 
      - web 
      - data 
      - media 
      - monitoring 
      - network 
      - logging 
    ports:
      - 80:80 
      - 443:443 
    security_opt:
      - no-new-privileges:true
    labels:
      - "traefik.enable=true"
      - "traefik.http.routers.traefik-api.entryPoints=web, websecure"
      - "traefik.http.routers.traefik-api.rule=Host(`traefik.home.linux.docker.home.local`) && (PathPrefix(`/api`) || PathPrefix(`/dashboard`))"
      - "traefik.http.routers.traefik-api.service=api@internal"
      - "traefik.http.routers.traefik-api.tls=true"
    restart: always

  traefik-whoami:
    container_name: traefik-whoami
    image: containous/whoami:latest
    env_file: 
      - .env
      - .env.traefik-whoami
    volumes:
      - /mnt/AppData/network/traefik-whoami:/config:rw 
    networks:
      - data 
    security_opt:
      - no-new-privileges:true
    labels:
      - "traefik.enable=true"
      - "traefik.docker.network=data"
          
      # traefik-whoami: websecure
      - "traefik.http.routers.traefik-whoami.entrypoints=websecure"
      - "traefik.http.routers.traefik-whoami.service=traefik-whoami"
      - "traefik.http.services.traefik-whoami.loadbalancer.server.port=80"
      - "traefik.http.routers.traefik-whoami.priority=100"
      - "traefik.http.routers.traefik-whoami.rule=Host(`traefik-whoami.home.linux.docker.home.local`)"
      - "traefik.http.services.traefik-whoami.loadbalancer.server.scheme=http"
      - "traefik.http.routers.traefik-whoami.tls=true"
    restart: always


networks:
  public:
    external: true
  web:
    external: true
  data:
    external: true
  media:
    external: true
  monitoring:
    external: true
  network:
    external: true
  logging:
    external: true

Here is my traefik.yml file

global:
  checkNewVersion: true
  sendAnonymousUsage: true

api:
  #insecure: false
  dashboard: true
  #debug: false

log:
  level: DEBUG
  filePath: /logs/traefik.log
  format: json

accessLog:
  filePath: /logs/access.log
  format: json
#   bufferingSize: 42

serversTransport:
  insecureSkipVerify: true

entryPoints:
  # Stand Web Access
  web:
    address: :80
    http:
      redirections:
          entryPoint:
            to: websecure
            scheme: https

  websecure:
    address: :443
2

Ok, I think I might have found something

If I use "https://traefik.home.linux.docker.home.local/dashboard" I get a 404
If i use "https://raefik.home.linux.docker.home.local/dashboard/" it works <- note the trailing "/"

Do I have something in my confirm that is forcing it to look for the trailing "/"?

3

The trailing slash / in /dashboard/ is mandatory

4

Thanks -- I missed that That said, this is kind of an odd requirement (and very non standard for web apps in general). If nothing else, there should be a way to write a rule that will do a redirect to append it if it is missing?