homelab/archive/2022.07.bxl-k3s-pi/utils/monitoring/kube-prometheus/kubePrometheus-prometheusRu...

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YAML

apiVersion: monitoring.coreos.com/v1
kind: PrometheusRule
metadata:
labels:
app.kubernetes.io/component: exporter
app.kubernetes.io/name: kube-prometheus
app.kubernetes.io/part-of: kube-prometheus
prometheus: k8s
role: alert-rules
name: kube-prometheus-rules
namespace: monitoring
spec:
groups:
- name: general.rules
rules:
- alert: TargetDown
annotations:
description: '{{ printf "%.4g" $value }}% of the {{ $labels.job }}/{{ $labels.service
}} targets in {{ $labels.namespace }} namespace are down.'
runbook_url: https://runbooks.prometheus-operator.dev/runbooks/general/targetdown
summary: One or more targets are unreachable.
expr: 100 * (count(up == 0) BY (job, namespace, service) / count(up) BY (job,
namespace, service)) > 10
for: 10m
labels:
severity: warning
- alert: Watchdog
annotations:
description: |
This is an alert meant to ensure that the entire alerting pipeline is functional.
This alert is always firing, therefore it should always be firing in Alertmanager
and always fire against a receiver. There are integrations with various notification
mechanisms that send a notification when this alert is not firing. For example the
"DeadMansSnitch" integration in PagerDuty.
runbook_url: https://runbooks.prometheus-operator.dev/runbooks/general/watchdog
summary: An alert that should always be firing to certify that Alertmanager
is working properly.
expr: vector(1)
labels:
severity: none
- alert: InfoInhibitor
annotations:
description: |
This is an alert that is used to inhibit info alerts.
By themselves, the info-level alerts are sometimes very noisy, but they are relevant when combined with
other alerts.
This alert fires whenever there's a severity="info" alert, and stops firing when another alert with a
severity of 'warning' or 'critical' starts firing on the same namespace.
This alert should be routed to a null receiver and configured to inhibit alerts with severity="info".
runbook_url: https://runbooks.prometheus-operator.dev/runbooks/general/infoinhibitor
summary: Info-level alert inhibition.
expr: ALERTS{severity = "info"} == 1 unless on(namespace) ALERTS{alertname !=
"InfoInhibitor", severity =~ "warning|critical", alertstate="firing"} == 1
labels:
severity: none
- name: node-network
rules:
- alert: NodeNetworkInterfaceFlapping
annotations:
description: Network interface "{{ $labels.device }}" changing its up status
often on node-exporter {{ $labels.namespace }}/{{ $labels.pod }}
runbook_url: https://runbooks.prometheus-operator.dev/runbooks/general/nodenetworkinterfaceflapping
summary: Network interface is often changing its status
expr: |
changes(node_network_up{job="node-exporter",device!~"veth.+"}[2m]) > 2
for: 2m
labels:
severity: warning
- name: kube-prometheus-node-recording.rules
rules:
- expr: sum(rate(node_cpu_seconds_total{mode!="idle",mode!="iowait",mode!="steal"}[3m]))
BY (instance)
record: instance:node_cpu:rate:sum
- expr: sum(rate(node_network_receive_bytes_total[3m])) BY (instance)
record: instance:node_network_receive_bytes:rate:sum
- expr: sum(rate(node_network_transmit_bytes_total[3m])) BY (instance)
record: instance:node_network_transmit_bytes:rate:sum
- expr: sum(rate(node_cpu_seconds_total{mode!="idle",mode!="iowait",mode!="steal"}[5m]))
WITHOUT (cpu, mode) / ON(instance) GROUP_LEFT() count(sum(node_cpu_seconds_total)
BY (instance, cpu)) BY (instance)
record: instance:node_cpu:ratio
- expr: sum(rate(node_cpu_seconds_total{mode!="idle",mode!="iowait",mode!="steal"}[5m]))
record: cluster:node_cpu:sum_rate5m
- expr: cluster:node_cpu:sum_rate5m / count(sum(node_cpu_seconds_total) BY (instance,
cpu))
record: cluster:node_cpu:ratio
- name: kube-prometheus-general.rules
rules:
- expr: count without(instance, pod, node) (up == 1)
record: count:up1
- expr: count without(instance, pod, node) (up == 0)
record: count:up0