Grafana告警

Grafana告警步骤

配置一个告警分为3步：添加告警规则->添加联络点->添加通知策略

这里就不一一介绍了

注意点

1.首先要配置联络点，可以查官方文档或者ai一个，可以直接用Test测试能否发送，联络点模板若不符合格式，发送不出去，但是不会报错，仍显示发送成功，实际并没收到。

许多样式都用不了，比如时间尝试了很多种格式都没出来，文末给了2种可用的联络点模板

2.钉钉的Action Card样式，将会在消息底部自带一个”More“链接跳转到AlertList，无法修改，为官方bug：https://github.com/grafana/grafana/issues/98469

3.在配置通知策略时，要基于已有的规则去设定，否则无法生效，比如以下的示例，要先在第一条策略内配置”!=”放行你的通知，然后再添加策略”=“，指定对应的告警规则和联络点，这样告警规则才能对应上联络点。如果是刚搭建的监控，直接配置默认告警即可。

告警规则

k8s告警

PodRestarts

Pod 重启告警

Pod_Restart_Count_P

max(kube_pod_container_status_restarts_total{pod=~".*",container!="",container!="POD"}) by (namespace,container,pod)

Pod_Restart_Count_N

max(kube_pod_container_status_restarts_total{pod=~".*",container!="",container!="POD"}) by (namespace,container,pod)

($newRestartCount - $oldRestartCount) > 0

PodCPUUsage

Pod CPU 使用率超80%告警

max(irate(container_cpu_usage_seconds_total{pod=~".*",container!="",container!="POD",namespace=~"default"}[1m])) by (container,namespace,pod) / max(container_spec_cpu_quota{pod=~".*",container!="",container!="POD",namespace=~"default"}/100000) by (container,namespace,pod) or on() vector(0)

PodMemoryUsage

Pod 内存 使用率超80%告警

sum(  irate(container_memory_usage_bytes{pod=~".*", container!="", container!="POD"}[1m])) by (container, namespace, pod)/sum(  container_spec_memory_limit_bytes{pod=~".*", container!="", container!="POD"}) by (container, namespace, pod)or on() vector(0)

NodeCPUUsage

Node CPU使用率超80%告警

(1 - avg(rate(node_cpu_seconds_total{mode="idle"}[5m])) by (instance))* on(instance) group_left(nodename) (node_uname_info{nodename=~".+"})

NodeMemoryUsage

Node Memory使用率超80%告警

(1 - (node_memory_MemAvailable_bytes / node_memory_MemTotal_bytes))* on(instance) group_left(nodename)node_uname_info

PodEvicted

Pod 被驱逐告警

sum(kube_pod_status_phase{phase="Evicted"})by (namespace,pod)

PodOom

Pod OOM告警

sum by (namespace,pod) ((kube_pod_container_status_restarts_total{} - kube_pod_container_status_restarts_total{} offset 10m >= 1) and ignoring (reason) min_over_time(kube_pod_container_status_last_terminated_reason{reason='OOMKilled'}[10m]) == 1)

ES告警

ESDiskUsage

ES 磁盘使用率超过70%

1-(elasticsearch_filesystem_data_available_bytes{job="elasticsearch-exporter-metrics",instance=~"elasticsearch-exporter.devops:9114",cluster="elasticsearch",name=~"(elasticsearch-client-0|elasticsearch-client-1|elasticsearch-data-0|elasticsearch-data-1|elasticsearch-data-2|elasticsearch-master-0|elasticsearch-master-1|elasticsearch-master-2)"}/elasticsearch_filesystem_data_size_bytes{job="elasticsearch-exporter-metrics",instance=~"elasticsearch-exporter.devops:9114",cluster="elasticsearch",name=~"(elasticsearch-client-0|elasticsearch-client-1|elasticsearch-data-0|elasticsearch-data-1|elasticsearch-data-2|elasticsearch-master-0|elasticsearch-master-1|elasticsearch-master-2)"})

ESJVMUsage

ES JVM使用率超过85%

elasticsearch_jvm_memory_used_bytes{job="elasticsearch-exporter-metrics",instance=~"elasticsearch-exporter.devops:9114",cluster="elasticsearch",name=~"(elasticsearch-client-0|elasticsearch-client-1|elasticsearch-data-0|elasticsearch-data-1|elasticsearch-data-2|elasticsearch-master-0|elasticsearch-master-1|elasticsearch-master-2)"} / elasticsearch_jvm_memory_max_bytes{job="elasticsearch-exporter-metrics",instance=~"elasticsearch-exporter.devops:9114",cluster="elasticsearch",name=~"(elasticsearch-client-0|elasticsearch-client-1|elasticsearch-data-0|elasticsearch-data-1|elasticsearch-data-2|elasticsearch-master-0|elasticsearch-master-1|elasticsearch-master-2)"}

ESCPUUsage

ES CPU使用率超过80%告警

elasticsearch_process_cpu_percent{job="elasticsearch-exporter-metrics",instance=~"elasticsearch-exporter.devops:9114",cluster="elasticsearch",name=~"(elasticsearch-client-0|elasticsearch-client-1|elasticsearch-data-0|elasticsearch-data-1|elasticsearch-data-2|elasticsearch-master-0|elasticsearch-master-1|elasticsearch-master-2)"}

ESStatus

Elasticsearch集群健康状态异常

elasticsearch_cluster_health_status{color="red"}==1 or (elasticsearch_cluster_health_status{color="green"}==1)+4 or (elasticsearch_cluster_health_status{color="yellow"}==1)+22

集群写入QPS(Count/s)

集群每秒钟写入的文档数量

rate(elasticsearch_indices_indexing_index_total{name!~"elasticsearch-client-0|elasticsearch-client-1|elasticsearch-master-0|elasticsearch-master-1|elasticsearch-master-2"}[1m])

联络点

k8s

{{ if eq .Status "firing" }}
# k8s环境告警
## 服务状态异常，请及时检查。

**告警类型**: {{ .CommonLabels.alertname }}

**涉及资源**: {{ $instances := "" }}{{ range $index, $alert := .Alerts }}{{ if $index }}, {{ end }}{{ with $alert.Labels.pod }}{{ . }}{{ else }}{{ with $alert.Labels.instance }}{{ . }}{{ else }}无{{ end }}{{ end }}{{ end }}{{ $instances }}

**环境**: k8s环境

**告警详情**:
{{ if eq .CommonLabels.alertname "PodRestarts" }}
{{ range .Alerts }}
---
- **问题**: {{ .Annotations.description }}
- **命名空间**: {{ .Labels.namespace }}
- **涉及容器**: {{ .Labels.container }}
- **Pod名称**: {{ .Labels.pod }}

**详情链接**: https://grafana.xxx.com/d/kubernetes?var-namespace={{ .Labels.namespace }}&var-pod={{ .Labels.pod }}
{{ end }}

{{ else if eq .CommonLabels.alertname "PodCPUUsage" }}
{{ range .Alerts }}
---
- **问题**: {{ .Annotations.description }}
- **命名空间**: {{ .Labels.namespace }}
- **涉及容器**: {{ .Labels.container }}
- **Pod名称**: {{ .Labels.pod }}

**详情链接**: https://grafana.xxx.com/d/kubernetes?var-namespace={{ .Labels.namespace }}&var-pod={{ .Labels.pod }}
{{ end }}

{{ else if eq .CommonLabels.alertname "PodMemoryUsage" }}
{{ range .Alerts }}
---
- **问题**: {{ .Annotations.description }}
- **命名空间**: {{ .Labels.namespace }}
- **涉及容器**: {{ .Labels.container }}
- **Pod名称**: {{ .Labels.pod }}

**详情链接**: https://grafana.xxx.com/d/kubernetes?var-namespace={{ .Labels.namespace }}&var-pod={{ .Labels.pod }}
{{ end }}

{{ else if eq .CommonLabels.alertname "NodeCPUUsage" }}
{{ range .Alerts }}
---
- **问题**: {{ .Annotations.description }}
- **涉及实例**: {{ .Labels.instance }}
- **Node名称**: {{ .Labels.nodename }}

**详情链接**:  https://grafana.xxx.com/d/kubernetes?var-node={{ .Labels.nodename }}
{{ end }}

{{ else if eq .CommonLabels.alertname "NodeMemoryUsage" }}
{{ range .Alerts }}
---
- **问题**: {{ .Annotations.description }}
- **涉及实例**: {{ .Labels.instance }}
- **Node名称**: {{ .Labels.nodename }}

**详情链接**:  https://grafana.xxx.com/d/kubernetes?var-node={{ .Labels.nodename }}
{{ end }}

{{ else if eq .CommonLabels.alertname "PodEvicted" }}
{{ range .Alerts }}
---
- **问题**: {{ .Annotations.description }}
- **命名空间**: {{ .Labels.namespace }}
- **涉及容器**: {{ .Labels.container }}
- **Pod名称**: {{ .Labels.pod }}

**详情链接**: https://grafana.xxx.com/d/kubernetes?var-namespace={{ .Labels.namespace }}&var-pod={{ .Labels.pod }}
{{ end }}

{{ else if eq .CommonLabels.alertname "PodOom" }}
{{ range .Alerts }}
---
- **问题**: {{ .Annotations.description }}
- **命名空间**: {{ .Labels.namespace }}
- **涉及容器**: {{ .Labels.container }}
- **Pod名称**: {{ .Labels.pod }}

**详情链接**: https://grafana.xxx.com/d/kubernetes?var-namespace={{ .Labels.namespace }}&var-pod={{ .Labels.pod }}
{{ end }}

{{ else }}
- **问题**: 其他异常
{{ end }}


{{ else if eq .Status "resolved" }}
# k8s环境恢复
### 服务已恢复至正常状态。

**涉及资源**: {{ $instances := "" }}{{ range $index, $alert := .Alerts }}{{ if $index }}, {{ end }}{{ with $alert.Labels.pod }}{{ . }}{{ else }}{{ with $alert.Labels.instance }}{{ . }}{{ else }}无{{ end }}{{ end }}{{ end }}{{ $instances }}

**环境**: k8s环境

**告警类型**: {{ .CommonLabels.alertname }}

{{ if .CommonAnnotations.summary }}{{ if ne .CommonAnnotations.summary ""}}
**总结**: {{ .CommonAnnotations.summary }}
{{ end }}{{ end }}

{{ end }}

ES

{{ if eq .Status "firing" }}
# ES环境告警
## 服务状态异常，请及时检查。

**告警类型**: {{ .CommonLabels.alertname }}

**环境**: ES环境

**告警详情**:
{{ if eq .CommonLabels.alertname "ESDiskUsage" }}
- **问题**: {{ .CommonAnnotations.description }}

**详情链接**:  https://grafana.xxx.com/d/elasticsearch-exporter-quickstart-and-dashboard?orgId=1&viewPanel=32
{{ else if eq .CommonLabels.alertname "ESJVMUsage" }}
- **问题**: {{ .CommonAnnotations.description }}

**详情链接**:  https://grafana.xxx.com/d/elasticsearch-exporter-quickstart-and-dashboard?orgId=1
{{ else if eq .CommonLabels.alertname "ESCPUUsage" }}
- **问题**: {{ .CommonAnnotations.description }}

**详情链接**:  https://grafana.xxx.com/d/elasticsearch-exporter-quickstart-and-dashboard?orgId=1&viewPanel=88
{{ else if eq .CommonLabels.alertname "ESStatusY" }}
- **问题**: ES 健康状态异常—{{ $instances := "" }}{{ range $index, $alert := .Alerts }}{{ if $index }}, {{ end }}{{ $alert.Labels.color}}{{ end }}{{ $instances }}

**详情链接**:  https://grafana.xxx.com/d/elasticsearch-exporter-quickstart-and-dashboard?orgId=1

{{ else if eq .CommonLabels.alertname "ESStatusR" }}
- **问题**: ES 健康状态异常—{{ $instances := "" }}{{ range $index, $alert := .Alerts }}{{ if $index }}, {{ end }}{{ $alert.Labels.color}}{{ end }}{{ $instances }}

**详情链接**:  https://grafana.xxx.com/d/elasticsearch-exporter-quickstart-and-dashboard?orgId=1

{{ else }}
- **问题**: 其他异常

**详情链接**:  https://grafana.xxx.com/d/elasticsearch-exporter-quickstart-and-dashboard?orgId=1
{{ end }}

{{ else if eq .Status "resolved" }}
# ES环境恢复
### 服务已恢复至正常状态。

**环境**: ES环境

**告警类型**: {{ .CommonLabels.alertname }}

{{ if .CommonAnnotations.summary }}{{ if ne .CommonAnnotations.summary ""}}
**总结**: {{ .CommonAnnotations.summary }}
{{ end }}{{ end }}

{{ end }}