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 and alert groups in notification policies.
• 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. 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.