I can't redirect to an external domain in traefik version 2.1.

Traefik Traefik v2 (latest)
1

What did you do?

I've tried to convert my config from traefik version 1.7 to 2.1.

What did you expect to see?

A redirect from http://service1.domain.com to https://domain.com:1234 or another domain like https://domain2.net:1234.

What did you see instead?

That it doesn't work, because I just can put an ip-address instead of a name on my url in the service section of traefik version 2.1.
In traefik version 1.7 it was possible to use domain-names in the backend server url.

Thats the main reason for, becaus I can't move to traefik version 2.1. Do you have an idea how I could implement it alternatively?

Output of traefik version: (What version of Traefik are you using?)

Traefik version 2.1.4 built on 2020-02-06T17:10:06Z

What is your environment & configuration (arguments, toml, provider, platform, ...)?

Traefik 1.7 traefik.toml

[file]

[frontends]
    [frontends.service1]
        backend = "service1"
    [frontends.service1.headers]
        SSLRedirect = true
    [frontends.service1.routes.service1]
        rule = "Host:service1.domain.com"

[backends]
[backends.service1]
    [backends.service1.servers.service1]
        url = "https://domain.com:1234"

Traefik 2.1 traefik.toml

[http.routers]
  [http.routers.service1]
    rule = "Host(`service1.domain.com`)"
    service = "service1"
    middlewares = ["https-redirect"]
	[http.routers.service1.tls]

[http.middlewares]
  [http.middlewares.https-redirect.headers]
    sslTemporaryRedirect = true

[http.services]
  [http.services.service1.loadBalancer]
    [[http.services.service1.loadBalancer.servers]]
      url = "https://domain.com:1234"
2

Hello,

in the v2, the dynamic configuration and the static configuration must be defined in separated files:

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