coredns-deployment/charts/coredns/templates/configmap.yaml

apiVersion: v1
kind: ConfigMap
metadata:
  name: {{ template "coredns.fullname" . }}
  labels:
    app.kubernetes.io/managed-by: {{ .Release.Service | quote }}
    app.kubernetes.io/instance: {{ .Release.Name | quote }}
    helm.sh/chart: "{{ .Chart.Name }}-{{ .Chart.Version | replace "+" "_" }}"
    {{- if .Values.isClusterService }}
    k8s-app: {{ .Chart.Name | quote }}
    kubernetes.io/cluster-service: "true"
    kubernetes.io/name: "CoreDNS"
    {{- end }}
    app.kubernetes.io/name: {{ template "coredns.name" . }}
data:
  Corefile: |-
    {{ range .Values.servers }}
    {{- range $idx, $zone := .zones }}{{ if $idx }} {{ else }}{{ end }}{{ default "" $zone.scheme }}{{ default "." $zone.zone }}{{ else }}.{{ end -}}
    {{- if .port }}:{{ .port }} {{ end -}}
    {
      {{- range .plugins }}
        {{ .name }}{{ if .parameters }} {{ .parameters }}{{ end }}{{ if .configBlock }} {
{{ .configBlock | indent 12 }}
        }{{ end }}
      {{- end }}
    }
    {{ end }}
  {{- range .Values.zoneFiles }}
  {{ .filename }}: {{ toYaml .contents | indent 4 }}
  {{- end }}