Auto-sign autodiscover and autoconfig for all domains found in mailcow - only if A records exists and matches

data/Dockerfiles/acme/Dockerfile

@@ -7,7 +7,8 @@ RUN apk add --update --no-cache \
 	acme-client \
 	curl \
 	openssl \
-	bind-tools
+	bind-tools \
+	mariadb-client
 
 COPY docker-entrypoint.sh /srv/docker-entrypoint.sh
 

data/Dockerfiles/acme/docker-entrypoint.sh

@@ -13,28 +13,50 @@ restart_containers(){
 
 while true; do
 
-	AUTODISCOVER=
-	AUTODISCOVER_A=$(dig a autodiscover.${MAILCOW_HOSTNAME#*} +short @208.67.220.222)
-	if [[ ! -z ${AUTODISCOVER_A} ]]; then
-		if [[ $(curl -4s https://mailcow.email/ip.php) == ${AUTODISCOVER_A} ]]; then
-			AUTODISCOVER="autodiscover.${MAILCOW_HOSTNAME#*}"
+	# Autodiscover and Autoconfig (Thunderbird)
+	declare -a SQL_DOMAIN_ARR
+	declare -a DOMAIN_ARR
+	declare -a DOMAIN_ARR
+
+	while read line; do
+		SQL_DOMAIN_ARR+=("${line}")
+	done < <(mysql -h mysql-mailcow -u ${DBUSER} -p${DBPASS} ${DBNAME} -e "SELECT domain FROM domain" -Bs)
+
+	for SQL_DOMAIN in "${SQL_DOMAIN_ARR[@]}"; do
+		IPV4=$(curl -4s https://mailcow.email/ip.php)
+		A_CONFIG=$(dig A autoconfig.${SQL_DOMAIN} +short @208.67.220.222)
+		if [[ ! -z ${A_CONFIG} ]]; then
+			echo "Found A record for autoconfig.${SQL_DOMAIN}: ${A_CONFIG}"
+			if [[ ${IPV4} == ${A_CONFIG} ]]; then
+				echo "Confirmed A record autoconfig.${SQL_DOMAIN}"
+				CONFIG_DOMAINS+=("autoconfig.${SQL_DOMAIN}")
+			else
+				echo "Cannot match Your IP against hostname autoconfig.${SQL_DOMAIN}"
+			fi
+		else
+			echo "No A record for autoconfig.${SQL_DOMAIN} found"
 		fi
-	fi
 
-	AUTOCONFIG=
-	AUTOCONFIG_A=$(dig a autoconfig.${MAILCOW_HOSTNAME#*} +short @208.67.220.222)
-	if [[ ! -z ${AUTOCONFIG_A} ]]; then
-		if [[ $(curl -4s https://mailcow.email/ip.php) == ${AUTOCONFIG_A} ]]; then
-			AUTOCONFIG="autoconfig.${MAILCOW_HOSTNAME#*}"
+        A_DISCOVER=$(dig A autodiscover.${SQL_DOMAIN} +short @208.67.220.222)
+		if [[ ! -z ${A_DISCOVER} ]]; then
+			echo "Found A record for autodiscover.${SQL_DOMAIN}: ${A_CONFIG}"
+			if [[ ${IPV4} == ${A_DISCOVER} ]]; then
+				echo "Confirmed A record autodiscover.${SQL_DOMAIN}"
+				CONFIG_DOMAINS+=("autodiscover.${SQL_DOMAIN}")
+			else
+				echo "Cannot match Your IP against hostname autodiscover.${SQL_DOMAIN}"
+			fi
+		else
+			echo "No A record for autodiscover.${SQL_DOMAIN} found"
 		fi
-	fi
+	done
 
 	acme-client \
-		-v -b -N -n \
+		-v -e -b -N -n \
 		-f ${ACME_BASE}/acme/private/account.key \
 		-k ${ACME_BASE}/acme/private/privkey.pem \
 		-c ${ACME_BASE}/acme \
-		${MAILCOW_HOSTNAME} ${AUTOCONFIG} ${AUTODISCOVER} ${ADDITIONAL_SAN}
+		${MAILCOW_HOSTNAME} ${CONFIG_DOMAINS[*]} ${ADDITIONAL_SAN}
 
 	case "$?" in
 		0) # new certs