cw-infra-apps/grafana/charts/feature-cluster-metrics/templates/_kepler.alloy.tpl

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{{ define "feature.clusterMetrics.kepler.allowList" }}
{{- $allowList := list }}
{{ if .Values.kepler.metricsTuning.useDefaultAllowList }}
{{- $allowList = concat $allowList (list "up" "scrape_samples_scraped") (.Files.Get "default-allow-lists/kepler.yaml" | fromYamlArray) -}}
{{ end }}
{{ if .Values.kepler.metricsTuning.includeMetrics }}
{{- $allowList = concat $allowList (list "up" "scrape_samples_scraped") .Values.kepler.metricsTuning.includeMetrics -}}
{{ end }}
{{ $allowList | uniq | toYaml }}
{{ end }}
{{- define "feature.clusterMetrics.kepler.alloy" }}
{{- if .Values.kepler.enabled }}
{{- $metricAllowList := include "feature.clusterMetrics.kepler.allowList" . | fromYamlArray }}
{{- $metricDenyList := .Values.kepler.metricsTuning.excludeMetrics }}
{{- $labelSelectors := list }}
{{- range $k, $v := .Values.kepler.labelMatchers }}
{{- $labelSelectors = append $labelSelectors (printf "%s=%s" $k $v) }}
{{- end }}
discovery.kubernetes "kepler" {
role = "pod"
namespaces {
own_namespace = true
}
selectors {
role = "pod"
label = {{ $labelSelectors | join "," | quote }}
}
}
discovery.relabel "kepler" {
targets = discovery.kubernetes.kepler.targets
rule {
source_labels = ["__meta_kubernetes_pod_node_name"]
action = "replace"
target_label = "instance"
}
{{- if .Values.kepler.extraDiscoveryRules }}
{{ .Values.kepler.extraDiscoveryRules | indent 2 }}
{{- end }}
}
prometheus.scrape "kepler" {
targets = discovery.relabel.kepler.output
job_name = {{ .Values.kepler.jobLabel | quote }}
honor_labels = true
scrape_interval = {{ .Values.kepler.scrapeInterval | default .Values.global.scrapeInterval | quote }}
clustering {
enabled = true
}
{{- if or $metricAllowList $metricDenyList .Values.kepler.extraMetricProcessingRules }}
forward_to = [prometheus.relabel.kepler.receiver]
}
prometheus.relabel "kepler" {
max_cache_size = {{ .Values.kepler.maxCacheSize | default .Values.global.maxCacheSize | int }}
{{- if $metricAllowList }}
rule {
source_labels = ["__name__"]
regex = {{ $metricAllowList | join "|" | quote }}
action = "keep"
}
{{- end }}
{{- if $metricDenyList }}
rule {
source_labels = ["__name__"]
regex = {{ $metricDenyList | join "|" | quote }}
action = "drop"
}
{{- end }}
{{- if .Values.kepler.extraMetricProcessingRules }}
{{ .Values.kepler.extraMetricProcessingRules | indent 2 }}
{{- end }}
{{- end }}
forward_to = argument.metrics_destinations.value
}
{{- end }}
{{- end }}