---
apiVersion: monitoring.coreos.com/v1
kind: PrometheusRule
metadata:
  labels:
    prometheus: node-exporter
    role: alert-rules
  name: prometheus-node-exporter-rules
  namespace: monitoring
spec:
  groups:
  - name: ./node-exporter.rules
    rules:
    - alert: OOMKill
      expr: sum by (instance) (increase(node_vmstat_oom_kill[5m])) > 0