How to represent missing data/service across 2 datasource

Hi All,

I have 2 Kubernetes cluster which acts as a DR cluster, which are monitored using prometheus.
Both the clusters ideally will have same microservices with same replicas and other configurations.

Sometimes, during perf testing or other scenarios, some services failed to get deployed on one of the cluster or replicas count mis-matches.

I want to create a dashboard for same where it will list out all the services which are either missing on any of the Kubernetes cluster or replica count is not matching.

I reached a point where am able to get diff from A to B. But there are some services which are on B but not on A.

Am using ‘Join by field’ → OUTER (Time series) under transformation.

Am using Grafana v10.4.0

Screenshot 2024-05-09 at 11.25.16 AM