49 lines
1.9 KiB
YAML
49 lines
1.9 KiB
YAML
groups:
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- name: system_alerts
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interval: 30s
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rules:
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- alert: HighCPUUsage
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expr: 100 - (avg by(instance) (irate(node_cpu_seconds_total{mode="idle"}[5m])) * 100) > 80
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for: 5m
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labels:
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severity: warning
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annotations:
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summary: "Instance {{ $labels.instance }} 高CPU使用率"
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description: "CPU使用率超过80% (当前: {{ $value | humanizePercentage }})"
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- alert: HighMemoryUsage
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expr: 100 - ((node_memory_MemAvailable_bytes / node_memory_MemTotal_bytes) * 100) > 85
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for: 5m
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labels:
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severity: warning
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annotations:
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summary: "Instance {{ $labels.instance }} 高内存使用率"
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description: "内存使用率超过85% (当前: {{ $value | humanizePercentage }})"
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- alert: HighDiskUsage
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expr: 100 - ((node_filesystem_avail_bytes{mountpoint="/",fstype!="rootfs"} / node_filesystem_size_bytes{mountpoint="/",fstype!="rootfs"}) * 100) > 90
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for: 5m
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labels:
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severity: critical
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annotations:
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summary: "Instance {{ $labels.instance }} 高磁盘使用率"
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description: "磁盘使用率超过90% (当前: {{ $value | humanizePercentage }})"
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- alert: HostUnreachable
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expr: up == 0
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for: 1m
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labels:
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severity: critical
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annotations:
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summary: "实例 {{ $labels.instance }} 不可达"
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description: "实例 {{ $labels.instance }} 已超过1分钟不可用"
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- alert: DiskSpaceLow
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expr: (node_filesystem_avail_bytes{fstype!="tmpfs",fstype!="rootfs"} / node_filesystem_size_bytes{fstype!="tmpfs",fstype!="rootfs"}) < 0.1
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for: 2m
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labels:
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severity: warning
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annotations:
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summary: "实例 {{ $labels.instance }} 磁盘空间不足"
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description: "挂载点 {{ $labels.mountpoint }} 磁盘使用率超过90%"
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