fix(node-exporter): disable bogus readings/alerts from wmi_bus_pnp0c14

ahgraber · ahgraber · commit 85fe6ff813bf · 2025-10-31T14:43:16.000-04:00
diff --git a/kubernetes/apps/observability/kube-prometheus-stack/app/helmrelease.yaml b/kubernetes/apps/observability/kube-prometheus-stack/app/helmrelease.yaml
@@ -193,6 +193,11 @@ spec:
               replacement: $1
               sourceLabels: [__meta_kubernetes_pod_node_name]
               targetLabel: node
+          metricRelabelings:
+            # Drop bogus WMI/ACPI temp series defensively at scrape time
+            - action: drop
+              sourceLabels: [__name__, chip]
+              regex: node_hwmon_temp_celsius;wmi_bus_.*
 
     prometheusOperator:
       resources:
