DNS managed by Foreman should be able to assign aliases for hosts.

Smart-proxy API currently support DNS CNAME entries for DNSCMD only.

This feature should able CNAME support on dnsupdate DNS provider and make it possible to assign more then one CNAME to a host¹.

Issues related with this subject
#14091 #9388 #1581 #15244

¹ https://github.com/theforeman/smart-proxy/blob/develop/modules/dns_common/dns_common.rb#L108