#prometheus linux系统告警规则实例
#l
groups:
- name: linux
rules:
- alert: Node-Down #告警名称
expr: up == 0
for: 1m #持续多久后发送
labels:
severity: warning
annotations: #信息
summary: "Node has been down"
description: "has been down "
- alert: "内存使⽤率过⾼"
expr: round(100- node_memory_MemAvailable_bytes/node_memory_MemTotal_bytes*100) > 80
for: 1m
告警系统labels:
severity: warning
annotations:
summary: "内存使⽤率过⾼"
description: "当前使⽤率{{ $value }}%"
- alert: "CPU使⽤率过⾼"
expr: round(100 - ((avg by (instance,job)(irate(node_cpu_seconds_total{mode="idle",instance!~'bac-.*'}[5m]))) *100)) > 80
for: 2m
labels:
severity: warning
annotations:
summary: "CPU使⽤率过⾼"
description: "当前使⽤率{{ $value }}%"
- alert: "磁盘使⽤率过⾼"
expr: round(100-100*(node_filesystem_avail_bytes{fstype=~"ext4|xfs"} / node_filesystem_size_bytes{fstype=~"ext4|xfs"})) > 80
for: 15s
labels:
severity: warning
annotations:
summary: "磁盘使⽤率过⾼"
description: "当前磁盘{{$untpoint}} 使⽤率{{ $value }}%"
- alert: "分区容量过低"
expr: round(node_filesystem_avail_bytes{fstype=~"ext4|xfs",instance!~"testnode",mountpoint!~"/boot.*"}/1024/1024/1024) < 10
for: 15s
labels:
severity: warning
annotations:
summary: "分区容量过低"
description: "当前分区{{$untpoint}} 容量{{ $value }}GB"
- alert: "⽹络流出速率过⾼"
expr: round(irate(node_network_receive_bytes_total{instance!~"data.*",device!~'tap.*|veth.*|br.*|docker.*|vir.*|lo.*|vnet.*'}[1m])/1024) > 2048 for: 1m
labels:
severity: warning
annotations:
summary: "⽹络流出速率过⾼"
description: "当前速率{{ $value }}KB/s"
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