groups:
- name: volumes
  rules:
  - alert: kubernetes/volume-out-of-space
    expr: kubelet_volume_stats_available_bytes{persistentvolumeclaim!="prometheus-storage"} / kubelet_volume_stats_capacity_bytes * 100 < 10
    for: 2m
    labels:
      severity: page
    annotations:
      summary: Kubernetes Volume {{ $labels.kubernetes_namespace }}/{{ $labels.persistentvolumeclaim }} is running low on disk space
      description: "Volume is almost full (< 10% left)\n  VALUE = {{ $value }}\n  LABELS = {{ $labels }}"