apiVersion: v1
data:
  Corefile: |
  
    .:53 {
          log {
             class all
            }
        health {
          lameduck 5s
        }
        ready
        kubernetes cluster.local {
          fallthrough in-addr.arpa ip6.arpa
        }
        {{- range $k, $v := .Values.rewrites }}
        {{- $firstSplit := (split "/" $v)._0 }}
        {{- if and (or ($.Values.overwriteRegion) ($.Values.communicationType)) (or (and (eq (split "-" $v)._1 "external") (eq (split "-" $v)._2 $.Values.labels.bu)) (and (ne (split "-" $v)._1 "external") (eq (split "-" $v)._3 $.Values.labels.bu))) }}
          {{- if eq (split "-" $v)._1 "external" }}
              rewrite name {{ $k }}.svc.cluster.local {{ (split "-" $firstSplit)._0 }}-{{ (split "-" $firstSplit)._1 }}-{{ (split "-" $firstSplit)._2 }}{{ if $.Values.overwriteRegion }}-{{ $.Values.overwriteRegion }}{{- end }}-{{ (split "-" $firstSplit)._3 }}-envoy{{ if gt ((split "/" $v) | len) 1 }}-headless{{ end }}.{{ (split "/" $v)._0 }}.svc.cluster.local
          {{- else }}
              rewrite name {{ $k }}.svc.cluster.local {{ (split "-" $firstSplit)._0 }}-{{ (split "-" $firstSplit)._1 }}-{{ (split "-" $firstSplit)._2 }}-{{ (split "-" $firstSplit)._3 }}{{ if $.Values.overwriteRegion }}-{{ $.Values.overwriteRegion }}{{- end }}{{ if $.Values.communicationType }}-{{ $.Values.communicationType }}{{- end }}-{{ (split "-" $firstSplit)._4 }}-envoy{{ if gt ((split "/" $v) | len) 1 }}-headless{{ end }}.{{ (split "/" $v)._0 }}{{ if $.Values.communicationType }}-{{ $.Values.communicationType }}{{- end }}.svc.cluster.local
          {{- end }}
        {{- else }}
        rewrite name {{ $k }}.svc.cluster.local {{ if eq (split "-" $v)._1 "external" }}{{ if ne (split "-" $v)._2 $.Values.labels.bu }}externalname-{{ end }}{{ else }}{{ if ne (split "-" $v)._3 $.Values.labels.bu }}externalname-{{ end }}{{ end }}{{ (split "/" $v)._0 }}-envoy{{ if gt ((split "/" $v) | len) 1 }}-headless{{ end }}.{{ (split "/" $v)._0 }}.svc.cluster.local
        {{- end }}
        {{- end }}
        prometheus :9153
        forward . /etc/resolv.conf {
          max_concurrent 1000
          prefer_udp
        }
        cache 300 {
          success 9984
          denial 9984 15 15
          prefetch 2 1m 70%
        }
        loop
        reload
        loadbalance
    }
kind: ConfigMap
metadata:
  name: coredns
  namespace: kube-system