{{- /*
Generated from 'kubernetes-storage' group from https://github.com/prometheus-operator/kube-prometheus.git
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.kubernetesStorage }}
{{- $kubeStateMetricsJob := include "kube-prometheus-stack-kube-state-metrics.name" . }}
{{- $kubeletJob := include "kube-prometheus-stack-kubelet.name" . }}
{{- $targetNamespace := .Values.defaultRules.appNamespacesTarget }}
{{- $namespaceOperator := .Values.defaultRules.appNamespacesOperator | default "=~" }}
apiVersion: monitoring.coreos.com/v1
kind: PrometheusRule
metadata:
  name: {{ printf "%s-%s" (include "kube-prometheus-stack.fullname" .) "kubernetes-storage" | 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: kubernetes-storage
    rules:
{{- if not (.Values.defaultRules.disabled.KubePersistentVolumeFillingUp | default false) }}
    - alert: KubePersistentVolumeFillingUp
      annotations:
{{- if .Values.defaultRules.additionalRuleAnnotations }}
{{ toYaml .Values.defaultRules.additionalRuleAnnotations | indent 8 }}
{{- end }}
{{- if .Values.defaultRules.additionalRuleGroupAnnotations.kubernetesStorage }}
{{ toYaml .Values.defaultRules.additionalRuleGroupAnnotations.kubernetesStorage | indent 8 }}
{{- end }}
        description: The PersistentVolume claimed by {{`{{`}} $labels.persistentvolumeclaim {{`}}`}} in Namespace {{`{{`}} $labels.namespace {{`}}`}} {{`{{`}} with $labels.cluster -{{`}}`}} on Cluster {{`{{`}} . {{`}}`}} {{`{{`}}- end {{`}}`}} is only {{`{{`}} $value | humanizePercentage {{`}}`}} free.
        runbook_url: {{ .Values.defaultRules.runbookUrl }}/kubernetes/kubepersistentvolumefillingup
        summary: PersistentVolume is filling up.
      expr: |-
        (
          kubelet_volume_stats_available_bytes{job="{{ $kubeletJob }}", namespace{{ $namespaceOperator }}"{{ $targetNamespace }}", metrics_path="/metrics"}
            /
          kubelet_volume_stats_capacity_bytes{job="{{ $kubeletJob }}", namespace{{ $namespaceOperator }}"{{ $targetNamespace }}", metrics_path="/metrics"}
        ) < 0.03
        and
        kubelet_volume_stats_used_bytes{job="{{ $kubeletJob }}", namespace{{ $namespaceOperator }}"{{ $targetNamespace }}", metrics_path="/metrics"} > 0
        unless on ({{ range $.Values.defaultRules.additionalAggregationLabels }}{{ . }},{{ end }}cluster, namespace, persistentvolumeclaim)
        kube_persistentvolumeclaim_access_mode{ access_mode="ReadOnlyMany"} == 1
        unless on ({{ range $.Values.defaultRules.additionalAggregationLabels }}{{ . }},{{ end }}cluster, namespace, persistentvolumeclaim)
        kube_persistentvolumeclaim_labels{label_excluded_from_alerts="true"} == 1
      for: {{ dig "KubePersistentVolumeFillingUp" "for" "1m" .Values.customRules }}
      {{- with .Values.defaultRules.keepFiringFor }}
      keep_firing_for: "{{ . }}"
      {{- end }}
      labels:
        severity: {{ dig "KubePersistentVolumeFillingUp" "severity" "critical" .Values.customRules }}
      {{- if or .Values.defaultRules.additionalRuleLabels .Values.defaultRules.additionalRuleGroupLabels.kubernetesStorage }}
        {{- with .Values.defaultRules.additionalRuleLabels }}
          {{- toYaml . | nindent 8 }}
        {{- end }}
        {{- with .Values.defaultRules.additionalRuleGroupLabels.kubernetesStorage }}
          {{- toYaml . | nindent 8 }}
        {{- end }}
      {{- end }}
{{- end }}
{{- if not (.Values.defaultRules.disabled.KubePersistentVolumeFillingUp | default false) }}
    - alert: KubePersistentVolumeFillingUp
      annotations:
{{- if .Values.defaultRules.additionalRuleAnnotations }}
{{ toYaml .Values.defaultRules.additionalRuleAnnotations | indent 8 }}
{{- end }}
{{- if .Values.defaultRules.additionalRuleGroupAnnotations.kubernetesStorage }}
{{ toYaml .Values.defaultRules.additionalRuleGroupAnnotations.kubernetesStorage | indent 8 }}
{{- end }}
        description: Based on recent sampling, the PersistentVolume claimed by {{`{{`}} $labels.persistentvolumeclaim {{`}}`}} in Namespace {{`{{`}} $labels.namespace {{`}}`}} {{`{{`}} with $labels.cluster -{{`}}`}} on Cluster {{`{{`}} . {{`}}`}} {{`{{`}}- end {{`}}`}} is expected to fill up within four days. Currently {{`{{`}} $value | humanizePercentage {{`}}`}} is available.
        runbook_url: {{ .Values.defaultRules.runbookUrl }}/kubernetes/kubepersistentvolumefillingup
        summary: PersistentVolume is filling up.
      expr: |-
        (
          kubelet_volume_stats_available_bytes{job="{{ $kubeletJob }}", namespace{{ $namespaceOperator }}"{{ $targetNamespace }}", metrics_path="/metrics"}
            /
          kubelet_volume_stats_capacity_bytes{job="{{ $kubeletJob }}", namespace{{ $namespaceOperator }}"{{ $targetNamespace }}", metrics_path="/metrics"}
        ) < 0.15
        and
        kubelet_volume_stats_used_bytes{job="{{ $kubeletJob }}", namespace{{ $namespaceOperator }}"{{ $targetNamespace }}", metrics_path="/metrics"} > 0
        and
        predict_linear(kubelet_volume_stats_available_bytes{job="{{ $kubeletJob }}", namespace{{ $namespaceOperator }}"{{ $targetNamespace }}", metrics_path="/metrics"}[6h], 4 * 24 * 3600) < 0
        unless on ({{ range $.Values.defaultRules.additionalAggregationLabels }}{{ . }},{{ end }}cluster, namespace, persistentvolumeclaim)
        kube_persistentvolumeclaim_access_mode{ access_mode="ReadOnlyMany"} == 1
        unless on ({{ range $.Values.defaultRules.additionalAggregationLabels }}{{ . }},{{ end }}cluster, namespace, persistentvolumeclaim)
        kube_persistentvolumeclaim_labels{label_excluded_from_alerts="true"} == 1
      for: {{ dig "KubePersistentVolumeFillingUp" "for" "1h" .Values.customRules }}
      {{- with .Values.defaultRules.keepFiringFor }}
      keep_firing_for: "{{ . }}"
      {{- end }}
      labels:
        severity: {{ dig "KubePersistentVolumeFillingUp" "severity" "warning" .Values.customRules }}
      {{- if or .Values.defaultRules.additionalRuleLabels .Values.defaultRules.additionalRuleGroupLabels.kubernetesStorage }}
        {{- with .Values.defaultRules.additionalRuleLabels }}
          {{- toYaml . | nindent 8 }}
        {{- end }}
        {{- with .Values.defaultRules.additionalRuleGroupLabels.kubernetesStorage }}
          {{- toYaml . | nindent 8 }}
        {{- end }}
      {{- end }}
{{- end }}
{{- if not (.Values.defaultRules.disabled.KubePersistentVolumeInodesFillingUp | default false) }}
    - alert: KubePersistentVolumeInodesFillingUp
      annotations:
{{- if .Values.defaultRules.additionalRuleAnnotations }}
{{ toYaml .Values.defaultRules.additionalRuleAnnotations | indent 8 }}
{{- end }}
{{- if .Values.defaultRules.additionalRuleGroupAnnotations.kubernetesStorage }}
{{ toYaml .Values.defaultRules.additionalRuleGroupAnnotations.kubernetesStorage | indent 8 }}
{{- end }}
        description: The PersistentVolume claimed by {{`{{`}} $labels.persistentvolumeclaim {{`}}`}} in Namespace {{`{{`}} $labels.namespace {{`}}`}} {{`{{`}} with $labels.cluster -{{`}}`}} on Cluster {{`{{`}} . {{`}}`}} {{`{{`}}- end {{`}}`}} only has {{`{{`}} $value | humanizePercentage {{`}}`}} free inodes.
        runbook_url: {{ .Values.defaultRules.runbookUrl }}/kubernetes/kubepersistentvolumeinodesfillingup
        summary: PersistentVolumeInodes are filling up.
      expr: |-
        (
          kubelet_volume_stats_inodes_free{job="{{ $kubeletJob }}", namespace{{ $namespaceOperator }}"{{ $targetNamespace }}", metrics_path="/metrics"}
            /
          kubelet_volume_stats_inodes{job="{{ $kubeletJob }}", namespace{{ $namespaceOperator }}"{{ $targetNamespace }}", metrics_path="/metrics"}
        ) < 0.03
        and
        kubelet_volume_stats_inodes_used{job="{{ $kubeletJob }}", namespace{{ $namespaceOperator }}"{{ $targetNamespace }}", metrics_path="/metrics"} > 0
        unless on ({{ range $.Values.defaultRules.additionalAggregationLabels }}{{ . }},{{ end }}cluster, namespace, persistentvolumeclaim)
        kube_persistentvolumeclaim_access_mode{ access_mode="ReadOnlyMany"} == 1
        unless on ({{ range $.Values.defaultRules.additionalAggregationLabels }}{{ . }},{{ end }}cluster, namespace, persistentvolumeclaim)
        kube_persistentvolumeclaim_labels{label_excluded_from_alerts="true"} == 1
      for: {{ dig "KubePersistentVolumeInodesFillingUp" "for" "1m" .Values.customRules }}
      {{- with .Values.defaultRules.keepFiringFor }}
      keep_firing_for: "{{ . }}"
      {{- end }}
      labels:
        severity: {{ dig "KubePersistentVolumeInodesFillingUp" "severity" "critical" .Values.customRules }}
      {{- if or .Values.defaultRules.additionalRuleLabels .Values.defaultRules.additionalRuleGroupLabels.kubernetesStorage }}
        {{- with .Values.defaultRules.additionalRuleLabels }}
          {{- toYaml . | nindent 8 }}
        {{- end }}
        {{- with .Values.defaultRules.additionalRuleGroupLabels.kubernetesStorage }}
          {{- toYaml . | nindent 8 }}
        {{- end }}
      {{- end }}
{{- end }}
{{- if not (.Values.defaultRules.disabled.KubePersistentVolumeInodesFillingUp | default false) }}
    - alert: KubePersistentVolumeInodesFillingUp
      annotations:
{{- if .Values.defaultRules.additionalRuleAnnotations }}
{{ toYaml .Values.defaultRules.additionalRuleAnnotations | indent 8 }}
{{- end }}
{{- if .Values.defaultRules.additionalRuleGroupAnnotations.kubernetesStorage }}
{{ toYaml .Values.defaultRules.additionalRuleGroupAnnotations.kubernetesStorage | indent 8 }}
{{- end }}
        description: Based on recent sampling, the PersistentVolume claimed by {{`{{`}} $labels.persistentvolumeclaim {{`}}`}} in Namespace {{`{{`}} $labels.namespace {{`}}`}} {{`{{`}} with $labels.cluster -{{`}}`}} on Cluster {{`{{`}} . {{`}}`}} {{`{{`}}- end {{`}}`}} is expected to run out of inodes within four days. Currently {{`{{`}} $value | humanizePercentage {{`}}`}} of its inodes are free.
        runbook_url: {{ .Values.defaultRules.runbookUrl }}/kubernetes/kubepersistentvolumeinodesfillingup
        summary: PersistentVolumeInodes are filling up.
      expr: |-
        (
          kubelet_volume_stats_inodes_free{job="{{ $kubeletJob }}", namespace{{ $namespaceOperator }}"{{ $targetNamespace }}", metrics_path="/metrics"}
            /
          kubelet_volume_stats_inodes{job="{{ $kubeletJob }}", namespace{{ $namespaceOperator }}"{{ $targetNamespace }}", metrics_path="/metrics"}
        ) < 0.15
        and
        kubelet_volume_stats_inodes_used{job="{{ $kubeletJob }}", namespace{{ $namespaceOperator }}"{{ $targetNamespace }}", metrics_path="/metrics"} > 0
        and
        predict_linear(kubelet_volume_stats_inodes_free{job="{{ $kubeletJob }}", namespace{{ $namespaceOperator }}"{{ $targetNamespace }}", metrics_path="/metrics"}[6h], 4 * 24 * 3600) < 0
        unless on ({{ range $.Values.defaultRules.additionalAggregationLabels }}{{ . }},{{ end }}cluster, namespace, persistentvolumeclaim)
        kube_persistentvolumeclaim_access_mode{ access_mode="ReadOnlyMany"} == 1
        unless on ({{ range $.Values.defaultRules.additionalAggregationLabels }}{{ . }},{{ end }}cluster, namespace, persistentvolumeclaim)
        kube_persistentvolumeclaim_labels{label_excluded_from_alerts="true"} == 1
      for: {{ dig "KubePersistentVolumeInodesFillingUp" "for" "1h" .Values.customRules }}
      {{- with .Values.defaultRules.keepFiringFor }}
      keep_firing_for: "{{ . }}"
      {{- end }}
      labels:
        severity: {{ dig "KubePersistentVolumeInodesFillingUp" "severity" "warning" .Values.customRules }}
      {{- if or .Values.defaultRules.additionalRuleLabels .Values.defaultRules.additionalRuleGroupLabels.kubernetesStorage }}
        {{- with .Values.defaultRules.additionalRuleLabels }}
          {{- toYaml . | nindent 8 }}
        {{- end }}
        {{- with .Values.defaultRules.additionalRuleGroupLabels.kubernetesStorage }}
          {{- toYaml . | nindent 8 }}
        {{- end }}
      {{- end }}
{{- end }}
{{- if not (.Values.defaultRules.disabled.KubePersistentVolumeErrors | default false) }}
    - alert: KubePersistentVolumeErrors
      annotations:
{{- if .Values.defaultRules.additionalRuleAnnotations }}
{{ toYaml .Values.defaultRules.additionalRuleAnnotations | indent 8 }}
{{- end }}
{{- if .Values.defaultRules.additionalRuleGroupAnnotations.kubernetesStorage }}
{{ toYaml .Values.defaultRules.additionalRuleGroupAnnotations.kubernetesStorage | indent 8 }}
{{- end }}
        description: The persistent volume {{`{{`}} $labels.persistentvolume {{`}}`}} {{`{{`}} with $labels.cluster -{{`}}`}} on Cluster {{`{{`}} . {{`}}`}} {{`{{`}}- end {{`}}`}} has status {{`{{`}} $labels.phase {{`}}`}}.
        runbook_url: {{ .Values.defaultRules.runbookUrl }}/kubernetes/kubepersistentvolumeerrors
        summary: PersistentVolume is having issues with provisioning.
      expr: kube_persistentvolume_status_phase{phase=~"Failed|Pending",job="{{ $kubeStateMetricsJob }}"} > 0
      for: {{ dig "KubePersistentVolumeErrors" "for" "5m" .Values.customRules }}
      {{- with .Values.defaultRules.keepFiringFor }}
      keep_firing_for: "{{ . }}"
      {{- end }}
      labels:
        severity: {{ dig "KubePersistentVolumeErrors" "severity" "critical" .Values.customRules }}
      {{- if or .Values.defaultRules.additionalRuleLabels .Values.defaultRules.additionalRuleGroupLabels.kubernetesStorage }}
        {{- with .Values.defaultRules.additionalRuleLabels }}
          {{- toYaml . | nindent 8 }}
        {{- end }}
        {{- with .Values.defaultRules.additionalRuleGroupLabels.kubernetesStorage }}
          {{- toYaml . | nindent 8 }}
        {{- end }}
      {{- end }}
{{- end }}
{{- end }}