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The open and composable observability and data visualization platform. Visualize metrics, logs, and traces from multiple sources like Prometheus, Loki, Elasticsearch, InfluxDB, Postgres and many more.
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grafana/docs/sources/alerting/fundamentals/annotation-label/how-to-use-labels.md

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[/docs/grafana/latest/alerting/fundamentals/annotation-label/how-to-use-labels/] Learn about labels and label matchers in alerting [grafana alerting guide fundamentals] Labels in Grafana alerting 117

Labels in Grafana alerting

This topic explains why labels are a fundamental component of alerting.

  • The complete set of labels for an alert is what uniquely identifies an alert within Grafana alerts.
  • The Alertmanager uses labels to match alerts for [silences]({{< relref "../../silences/_index.md" >}}) and [alert groups]({{< relref "../../alert-groups/_index.md" >}}) in [notification policies]({{< relref "../../notifications/_index.md" >}}).
  • The alerting UI shows labels for every alert instance generated during evaluation of that rule.
  • Contact points can access labels to dynamically generate notifications that contain information specific to the alert that is resulting in a notification.
  • Labels can be added to an [alerting rule]({{< relref "../../alerting-rules/_index.md" >}}). These manually configured labels are able to use template functions and reference other labels. Labels added to an alerting rule take precedence in the event of a collision between labels.

{{< figure src="/static/img/docs/alerting/unified/rule-edit-details-8-0.png" max-width="550px" caption="Alert details" >}}