49 lines
1.2 KiB
Text
49 lines
1.2 KiB
Text
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apiVersion: v1
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kind: ConfigMap
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metadata:
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name: dkim-publisher-script
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namespace: {{ taskserv.namespace | default(value="mail") }}
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data:
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dkim-publish.sh: |
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#!/bin/bash
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set -euo pipefail
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domain=$1; selector=$2; ns=$3
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key_file="/tmp/docker-mailserver/opendkim/keys/${domain}/${selector}.txt"
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apply_dkim() {
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local key=$1
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kubectl apply -f - <<EOF
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apiVersion: externaldns.k8s.io/v1alpha1
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kind: DNSEndpoint
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metadata:
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name: docker-mailserver-dkim-${selector}
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namespace: ${ns}
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labels:
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external-dns.alpha.kubernetes.io/managed-by: docker-mailserver
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spec:
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endpoints:
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- dnsName: ${selector}._domainkey.${domain}
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recordType: TXT
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targets: ["${key}"]
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recordTTL: 300
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EOF
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}
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extract_key() {
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awk -F'"' '/p=/{for(i=2;i<=NF;i+=2) printf "%s", $i}' "$1" | tr -d ' \t\n()'
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}
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while [ ! -f "$key_file" ]; do sleep 5; done
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key=$(extract_key "$key_file")
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apply_dkim "$key"
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while true; do
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sleep 3600
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current=$(extract_key "$key_file")
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if [ "$current" != "$key" ]; then
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key="$current"
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apply_dkim "$key"
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fi
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done
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