Facing issues to configure Kubernates POD down alert in Granma

We have 6 DC running under namespace and each DC have 1 Pod. not able to configure alert if single pod down out of 6 DC.

I am able to configure alert for each POD . But this will be very difficult if we have 20 POD.
Could you please help to resolve tthis issue.

using Grafana time-series dashboard and Grafana version is 9.0.0