v2.8.2 service@file bad characters

[thechubbypanda]

Welcome!

• Yes, I've searched similar issues on GitHub and didn't find any.
• Yes, I've searched similar issues on the Traefik community forum and didn't find any.

What did you do?

Updated from 2.8.1 to 2.8.2

I had a perfectly working pihole service defined in a config file

What did you see instead?

The pihole service now has a || 24 || in front of it and traefik is complaining that it cant find it.

What version of Traefik are you using?

2.8.2

What is your environment & configuration?

http:
  routers:
    pihole:
      rule: Host(`pihole.kapdee.uk`)
      entrypoints:
        - https
      middlewares:
        - pihole
      service:
        - pihole
  middlewares:
    pihole:
      addPrefix:
        prefix: "/admin"
  services:
    pihole:
      loadBalancer:
        servers:
          - url: "http://192.168.1.2:2080"

Add more configuration information here.

If applicable, please paste the log output in DEBUG level

traefik | time="2022-08-12T20:36:28+01:00" level=error msg="the service "║24║pihole@file" does not exist" entryPointName=https routerName=pihole@file

[ldez]

Duplicate of #9249

Your configuration is malformed, service is not an array.

http:
  routers:
    pihole:
      rule: Host(`pihole.kapdee.uk`)
      entrypoints:
        - https
      middlewares:
        - pihole
      service:
        - pihole ## <----- HERE
  middlewares:
    pihole:
      addPrefix:
        prefix: "/admin"
  services:
    pihole:
      loadBalancer:
        servers:
          - url: "http://192.168.1.2:2080"

The right configuration:

http:
  routers:
    pihole:
      rule: Host(`pihole.kapdee.uk`)
      entrypoints:
        - https
      middlewares:
        - pihole
      service: pihole ## <--- the fix
  middlewares:
    pihole:
      addPrefix:
        prefix: "/admin"
  services:
    pihole:
      loadBalancer:
        servers:
          - url: "http://192.168.1.2:2080"

║24║ is an internal representation of an array of strings.