{{- /*
Generated from 'node.rules' group from https://raw.githubusercontent.com/prometheus-operator/kube-prometheus/main/manifests/kubernetes-prometheusRule.yaml
Do not change in-place! In order to change this file first read following link:
https://github.com/prometheus-community/helm-charts/tree/main/charts/kube-prometheus-stack/hack
*/ -}}
{{- $kubeTargetVersion := default .Capabilities.KubeVersion.GitVersion .Values.kubeTargetVersionOverride }}
{{- if and (semverCompare ">=1.14.0-0" $kubeTargetVersion) (semverCompare "<9.9.9-9" $kubeTargetVersion) .Values.defaultRules.create .Values.defaultRules.rules.node }}
apiVersion: monitoring.coreos.com/v1
kind: PrometheusRule
metadata:
  name: {{ printf "%s-%s" (include "kube-prometheus-stack.fullname" .) "node.rules" | trunc 63 | trimSuffix "-" }}
  namespace: {{ template "kube-prometheus-stack.namespace" . }}
  labels:
    app: {{ template "kube-prometheus-stack.name" . }}
{{ include "kube-prometheus-stack.labels" . | indent 4 }}
{{- if .Values.defaultRules.labels }}
{{ toYaml .Values.defaultRules.labels | indent 4 }}
{{- end }}
{{- if .Values.defaultRules.annotations }}
  annotations:
{{ toYaml .Values.defaultRules.annotations | indent 4 }}
{{- end }}
spec:
  groups:
  - name: node.rules
    rules:
    - expr: |-
        topk by(namespace, pod) (1,
          max by (node, namespace, pod) (
            label_replace(kube_pod_info{job="kube-state-metrics",node!=""}, "pod", "$1", "pod", "(.*)")
        ))
      record: 'node_namespace_pod:kube_pod_info:'
    - expr: |-
        count by (cluster, node) (sum by (node, cpu) (
          node_cpu_seconds_total{job="node-exporter"}
        * on (namespace, pod) group_left(node)
          topk by(namespace, pod) (1, node_namespace_pod:kube_pod_info:)
        ))
      record: node:node_num_cpu:sum
    - expr: |-
        sum(
          node_memory_MemAvailable_bytes{job="node-exporter"} or
          (
            node_memory_Buffers_bytes{job="node-exporter"} +
            node_memory_Cached_bytes{job="node-exporter"} +
            node_memory_MemFree_bytes{job="node-exporter"} +
            node_memory_Slab_bytes{job="node-exporter"}
          )
        ) by (cluster)
      record: :node_memory_MemAvailable_bytes:sum
{{- end }}