#rules.linux.yml
groups:
- name: Node-Alert
rules:
- alert: Instance-Down #告警名称
expr: up == 0
for: 1m #持续多久后发送
labels:
severity: warning
annotations: #信息
summary: "Instance {{$labels.instance}} down"
description: "{{$labels.instance}}: job {{$labels.job}} has been down for more than 1 minutes."
- alert: "内存使用率过高"
expr: round(100- node_memory_MemAvailable_bytes/node_memory_MemTotal_bytes*100) > 80
for: 1m
labels:
severity: warning
annotations:
summary: "{{ $labels.instance }}内存使用率过高"
description: "{{ $labels.instance }}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)) > 85
for: 2m
labels:
severity: warning
annotations:
summary: "{{ $labels.instance }}CPU使用率过高"
description: "{{ $labels.instance }}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: "{{ $labels.instance }}磁盘使用率过高"
description: "{{ $labels.instance }}当前磁盘{{$labels.mountpoint}} 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: "{{ $labels.instance }}分区容量过低"
description: "{{ $labels.instance }}当前分区为“{{$labels.mountpoint}} ” 剩余容量{{ $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: "{{ $labels.instance }}网络流出速率过高"
description: "{{ $labels.instance }}当前速率{{ $value }}KB/s"
配置需重启prometheus生效
转自：https://www.cnblogs.com/elvi/p/11444271.html，prometheus linux系统告警规则实例，内容略有不同，如有侵权，请留言告知，谢谢
