Kubernetes monitoring is essential for effective workload operation, and Grafana Alloy (formerly Agent) offers advanced configuration options. In the discovery.relabel configuration, specific rules allow users to map pod labels to metric labels and extract deployment names from pod names. The first rule maps all Kubernetes pod labels to Prometheus metric labels, enhancing observability and querying options. The second rule focuses on extracting deployment names from pods belonging to ReplicaSets, which improves transparency and facilitates more precise monitoring across Grafana dashboards.
This ensures that all pod labels are available in metrics, allowing for more granular filtering and querying in Grafana dashboards.
It checks if the pod belongs to a ReplicaSet by using __meta_kubernetes_pod_controller_kind.
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