apiVersion: monitoring.coreos.com/v1
kind: PrometheusRule
metadata:
  name: seaweedfs-alerts
  namespace: storage
  labels:
    role: alert-rules
spec:
  groups:
    - name: seaweedfs
      rules:
        - alert: SeaweedFSMasterDown
          expr: up{job=~".*seaweedfs.*", app="seaweedfs-master"} == 0
          for: 2m
          labels:
            severity: critical
          annotations:
            summary: "SeaweedFS master is down"
            description: "SeaweedFS master {{ $labels.namespace }}/{{ $labels.pod }} is down."

        - alert: SeaweedFSVolumeDown
          expr: up{job=~".*seaweedfs.*", app="seaweedfs-volume"} == 0
          for: 2m
          labels:
            severity: critical
          annotations:
            summary: "SeaweedFS volume server is down"
            description: "SeaweedFS volume server {{ $labels.namespace }}/{{ $labels.pod }} is down."

        - alert: SeaweedFSFilerDown
          expr: up{job=~".*seaweedfs.*", app="seaweedfs-filer"} == 0
          for: 2m
          labels:
            severity: critical
          annotations:
            summary: "SeaweedFS filer is down"
            description: "SeaweedFS filer {{ $labels.namespace }}/{{ $labels.pod }} is down."

        - alert: SeaweedFSDiskLow
          expr: (seaweedfs_disk_free_bytes / (seaweedfs_disk_free_bytes + seaweedfs_disk_used_bytes)) < 0.15
          for: 5m
          labels:
            severity: warning
          annotations:
            summary: "SeaweedFS disk space low"
            description: "SeaweedFS disk on {{ $labels.instance }} has less than 15% free space."