How do I create a SLO for this kafka metrics

[rameshpitchaiah]

I need to check the Kafka active controller count should be 1.
This the metric sum(kafka_controller_kafkacontroller_activecontrollercount)==1

I was getting an error when I tried bool_guage with the above metrics

Error:

2024-07-22T17:42:31Z	ERROR	Reconciler error	{"controller": "servicelevelobjective", "controllerGroup": "pyrra.dev", "controllerKind": "ServiceLevelObjective", "ServiceLevelObjective": {"name":"kafka-offline-partition","namespace":"pyrra"}, "namespace": "pyrra", "name": "kafka-offline-partition", "reconcileID": "8ccd3571-6c24-46f1-bb8c-dbf5a1386371", "error": "failed to get objective: bool gauge metric is not a VectorSelector"}

[metalmatze]

You don't need to write any PromQL to select the time series you want the SLO to be for.
In your case use kafka_controller_kafkacontroller_activecontrollercount and maybe add something in the curly braces like kafka_controller_kafkacontroller_activecontrollercount{job="kafka"} that's it.