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[prometheus-node-exporter] prevent node exporter from being scheduled on fargate or virtual nodes #4736

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[prometheus-node-exporter] prevent node exporter from being scheduled on fargate or virtual nodes #4736

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e130137
prevent node exporter from being scheduled on fargate or virtual nodes
mariuskimmina Jul 24, 2024
420fe01
Merge branch 'main' into node-exporter-affinity-not-fargate
zanhsieh Aug 22, 2024
2b43a84
Update Chart.yaml
zanhsieh Aug 22, 2024
6956c53
Merge branch 'main' into node-exporter-affinity-not-fargate
zanhsieh Aug 28, 2024
d043a15
Merge branch 'main' into node-exporter-affinity-not-fargate
zanhsieh Sep 1, 2024
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2 changes: 1 addition & 1 deletion charts/prometheus-node-exporter/Chart.yaml
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Original file line number Diff line number Diff line change
Expand Up @@ -6,7 +6,7 @@ keywords:
- prometheus
- exporter
type: application
version: 4.39.0
version: 4.39.1
appVersion: 1.8.2
home: https://github.com/prometheus/node_exporter/
sources:
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35 changes: 35 additions & 0 deletions charts/prometheus-node-exporter/templates/_helpers.tpl
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Expand Up @@ -200,3 +200,38 @@ labelValueLengthLimit: {{ . }}
{{- end }}
{{- end }}
{{- end }}

{{/*
The default node affinity to exclude
- AWS Fargate
- Azure virtual nodes
*/}}
{{- define "prometheus-node-exporter.defaultAffinity" -}}
nodeAffinity:
requiredDuringSchedulingIgnoredDuringExecution:
nodeSelectorTerms:
- matchExpressions:
- key: eks.amazonaws.com/compute-type
operator: NotIn
values:
- fargate
- key: type
operator: NotIn
values:
- virtual-kubelet
{{- end -}}
{{- define "prometheus-node-exporter.mergedAffinities" -}}
{{- $defaultAffinity := include "prometheus-node-exporter.defaultAffinity" . | fromYaml -}}
{{- with .Values.affinity -}}
{{- if .nodeAffinity -}}
{{- $_ := set $defaultAffinity "nodeAffinity" (mergeOverwrite $defaultAffinity.nodeAffinity .nodeAffinity) -}}
{{- end -}}
{{- if .podAffinity -}}
{{- $_ := set $defaultAffinity "podAffinity" .podAffinity -}}
{{- end -}}
{{- if .podAntiAffinity -}}
{{- $_ := set $defaultAffinity "podAntiAffinity" .podAntiAffinity -}}
{{- end -}}
{{- end -}}
{{- toYaml $defaultAffinity -}}
{{- end -}}
4 changes: 1 addition & 3 deletions charts/prometheus-node-exporter/templates/daemonset.yaml
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Expand Up @@ -249,10 +249,8 @@ spec:
hostNetwork: {{ .Values.hostNetwork }}
hostPID: {{ .Values.hostPID }}
hostIPC: {{ .Values.hostIPC }}
{{- with .Values.affinity }}
affinity:
{{- toYaml . | nindent 8 }}
{{- end }}
{{- include "prometheus-node-exporter.mergedAffinities" . | nindent 8 }}
{{- with .Values.dnsConfig }}
dnsConfig:
{{- toYaml . | nindent 8 }}
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