apiVersion: monitoring.coreos.com/v1
kind: PrometheusRule
metadata:
  name: zfs-exporter-rules
  labels:
    release: kube-prometheus-stack
spec:
  groups:
  - name: zfsexporter.rules
    rules:
    - alert: DriveErrorsCriticalAlert
      expr: zfs_read_errors{device_type="disk"} + zfs_write_errors{device_type="disk"} + zfs_checksum_errors{device_type="disk"} > 1000
      annotations:
        summary: A drive encountered some errors (drive {{ $labels.device_name }})
        description: "A drive encountered some errors! drive: {{ $labels.device_name }} in vdev {{ $labels.vdev }} in pool {{ $labels.pool }} \n error count: {{ $value }}"
      labels:
        severity: critical

    - alert: DriveAnyErrorsAlert
      expr: zfs_read_errors{device_type="disk"} + zfs_write_errors{device_type="disk"} + zfs_checksum_errors{device_type="disk"} > 0
      annotations:
        summary: A drive encountered some errors (drive {{ $labels.device_name }})
        description: "A drive encountered some errors! drive: {{ $labels.device_name }} in vdev {{ $labels.vdev }} in pool {{ $labels.pool }} \n error count: {{ $value }}"
      labels:
        severity: warning
    
    - alert: DriveReadErrorsAlert
      expr: zfs_read_errors{device_type="disk"} > 0
      annotations:
        summary: A drive encountered a checksum error (drive {{ $labels.device_name }})
        description: "A drive encountered a checksum error! drive: {{ $labels.device_name }} in vdev {{ $labels.vdev }} in pool {{ $labels.pool }} \n error count: {{ $value }}"
      labels:
        severity: warning
    
    - alert: DriveWriteErrorsAlert
      expr: zfs_write_errors{device_type="disk"} > 0
      annotations:
        summary: A drive encountered a checksum error (drive {{ $labels.device_name }})
        description: "A drive encountered a checksum error! drive: {{ $labels.device_name }} in vdev {{ $labels.vdev }} in pool {{ $labels.pool }} \n error count: {{ $value }}"
      labels:
        severity: warning
    
    - alert: DriveChecksumErrorsAlert
      expr: zfs_checksum_errors{device_type="disk"} > 0
      annotations:
        summary: A drive encountered a checksum error (drive {{ $labels.device_name }})
        description: "A drive encountered a checksum error! drive: {{ $labels.device_name }} in vdev {{ $labels.vdev }} in pool {{ $labels.pool }} \n error count: {{ $value }}"
      labels:
        severity: warning