Grafana alert with elasticsearch can't support Template variables

Grafana alert with elasticsearch can’t support Template variables
the Dashboard is add with variables , can’t support Template varialbes
the query with variable can’t add alert ,can add this function?

when

can’t add alert

Is this feature going to be implemented, please?

This seems to still be an issue, unless I’m mistaking the topic. We are using Grafana 8.1.2 and the alert datasource is elasticsearch. We are trying to us a variable in the “Summary”, e.g. something like {{ $labels.cluster.keyword }} and it’s throwing a “<$labels.cluster>: map has no entry for key "cluster"” error in the logs. Any suggestions would be much appreciated.