Experimental: Update traefik Host() rules for v3

internal/wisski/liquid/domain.go

@@ -2,6 +2,8 @@ package liquid
 
 import (
 	"net/url"
+
+	"github.com/FAU-CDI/wisski-distillery/internal/config"
 )
 
 // Domain returns the full domain name of this WissKI
@@ -9,6 +11,15 @@ func (liquid *Liquid) Domain() string {
 	return liquid.Config.HTTP.HostFromSlug(liquid.Slug)
 }
 
+func (liquid *Liquid) Hostname() string {
+	return liquid.Domain() + ".wisski"
+}
+
+// HostRule returns a host rule for this wisski
+func (liquid *Liquid) HostRule() string {
+	return config.MakeHostRule(liquid.Domain())
+}
+
 // URL returns the public URL of this instance
 func (liquid *Liquid) URL() *url.URL {
 	// setup domain and path