apiVersion: loki.grafana.com/v1
kind: LokiStack
metadata:
  name: <name>
  namespace: <namespace>
spec:
# ...
  rules:
    enabled: true [1]
    selector:
      matchLabels:
        openshift.io/<label_name>: "true" [2] 
    namespaceSelector:
      matchLabels:
        openshift.io/<label_name>: "true" [3]


[1] Enable Loki alerting and recording rules in your cluster.
[2] Add a custom label that can be added to namespaces where you want to enable the use of logging alerts and metrics.
[3] Add a custom label that can be added to namespaces where you want to enable the use of logging alerts and metrics.