feat: add unkin.net domain

- manage the unkin.net domain
- ensure forwarding for unkin.net
- split domain from cname list and set zone correctly
- add fafflix to cnames list for haproxy2

site/profiles/templates/dns/zone_header.erb

@@ -8,6 +8,13 @@ $TTL 600
         2419200    ; Expire
         600 )      ; Negative Cache TTL
 
+<% unless @glue_records.empty? -%>
+; Glue records for nameservers
+<% @glue_records.each do |fqdn, ip| -%>
+<%= fqdn %> IN A <%= ip %>
+<% end -%>
+
+<% end -%>
 ; Name servers
 <% @nameservers.each do |ns| -%>
 @   IN  NS    <%= ns %>.