50 lines
1.8 KiB
YAML
50 lines
1.8 KiB
YAML
groups:
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- name: ./kubelet.rules
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rules:
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- alert: K8SNodeNotReady
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expr: kube_node_status_condition{condition="Ready",status="true"} == 0
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for: 1h
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labels:
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severity: warning
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annotations:
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description: The Kubelet on {{ $labels.node }} has not checked in with the API,
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or has set itself to NotReady, for more than an hour
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summary: Node status is NotReady
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- alert: K8SManyNodesNotReady
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expr: count(kube_node_status_condition{condition="Ready",status="true"} == 0)
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> 1 and (count(kube_node_status_condition{condition="Ready",status="true"} ==
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0) / count(kube_node_status_condition{condition="Ready",status="true"})) > 0.2
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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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description: '{{ $value }} Kubernetes nodes (more than 10% are in the NotReady
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state).'
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summary: Many Kubernetes nodes are Not Ready
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- alert: K8SKubeletDown
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expr: count(up{job="kubelet"} == 0) / count(up{job="kubelet"}) > 0.03
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for: 1h
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labels:
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severity: warning
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annotations:
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description: Prometheus failed to scrape {{ $value }}% of kubelets.
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summary: Many Kubelets cannot be scraped
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- alert: K8SKubeletDown
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expr: absent(up{job="kubelet"} == 1) or count(up{job="kubelet"} == 0) / count(up{job="kubelet"})
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> 0.1
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for: 1h
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labels:
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severity: critical
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annotations:
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description: Prometheus failed to scrape {{ $value }}% of kubelets, or all Kubelets
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have disappeared from service discovery.
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summary: Many Kubelets cannot be scraped
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- alert: K8SKubeletTooManyPods
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expr: kubelet_running_pod_count > 100
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labels:
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severity: warning
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annotations:
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description: Kubelet {{$labels.instance}} is running {{$value}} pods, close
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to the limit of 110
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summary: Kubelet is close to pod limit
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