Reverse web app stored outside docker

Hello,

I've one web app stored outside docker/traeffik.
app ip = 192.168.123.123

In my dynamic traefik file I've made this :

http:
routers: toto:
entryPoints:
- "websecure"
service: "toto"
tls: true
middlewares:
- "toto"
rule: "Host(toto.toto.com)"
middlewares:
toto:
addPrefix:
prefix: "/swagger/index.html"
services:
toto:
loadBalancer:
servers:
- url = "http://192.168.123.123:8088"
passHostHeader: true

I always receive :Service Unavailable from traefik.
I can ping my external server from the traefik container.
The port is open on the final server.
It works with other reverse system, like Fortinet.
Same results in traefik 2.10.5 linux and 3.0.0 windows

What I've made wrong ?

Thx

Use 3 backticks before and after code for readability, in yaml every space matters.

Enable and check Traefik debug log (doc).

Try wget <url> from within Traefik container.

Hi,
Thanks for the response. Finally I found the mistake.
in url line replace = by : and it works

Kind regards