How to redirect main domain to external

Traefik Traefik v2
13

After a lot more research, I am finally starting to begin to understand how Traefik works. :slight_smile:

I managed to get the desired behavior with the following setup:

I removed all shenanigans from docker-compose.yml, and added the following to the dynamic config:

  routers:
    domainRouter:
      entrypoints:
        - websecure
      rule: "Host(`mydomain.com`)"
      service: dummy
      middlewares:
        - domain
      tls:
        certresolver: production

      
    catchAllRouter:
      entrypoints:
        - websecure
      middlewares:
        - catchAll
      rule: "PathPrefix(`/`)"
      service: dummy
      priority: 1
      tls:
        certresolver: production
        domains:
          - main: "mydomain.com"
          - sans: "*.mydomain.com"

  middlewares:
    domain:
      redirectregex:
        regex: "^https://mydomain.com/(.*)"
        replacement: "https://mydomain.com/${1}"
        permanent: true

    catchAll:
      redirectregex:
        regex: "^.*$"
        replacement: "https://mydomain.com/${1}"
        permanent: false

This accomplishes the following:

  1. The main domain is redirected to a custom URL
  2. Any subdomain that is not explicitly defined in docker label rules get redirected to another custom domain.

@bluepuma77 thank you for nudging me in the right direction!

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