Traefik routing configuration for pihole - rewrites URL to remove the /admin path

pihole-traefik.yaml

# /etc/traefik/pihole.yaml
http:
  middlewares:
    pihole-redirectregex:
      redirectRegex:
        regex: /admin/$
        replacement: /
    pihole-addprefix:
      addPrefix:
        prefix: /admin

  routers:
    pihole:
      rule: Host(`pihole.{{ env "MY_DOMAIN" }}`)
      service: pihole
      entryPoints: [websecure]
      middlewares:
        - pihole-redirectregex@file
        - pihole-addprefix@file
        
  services:
    pihole:
      loadBalancer:
        passHostHeader: true
        servers:
          - url: http://192.168.1.2/admin