[ACME] Allow to skip all names but MAILCOW_HOSTNAME

data/Dockerfiles/acme/docker-entrypoint.sh

@@ -15,6 +15,11 @@ if [[ "${SKIP_HTTP_VERIFICATION}" =~ ^([yY][eE][sS]|[yY])+$ ]]; then
   SKIP_HTTP_VERIFICATION=y
 fi
 
+# Request certificate for MAILCOW_HOSTNAME ony
+if [[ "${ONLY_MAILCOW_HOSTNAME}" =~ ^([yY][eE][sS]|[yY])+$ ]]; then
+  ONLY_MAILCOW_HOSTNAME=y
+fi
+
 log_f() {
   if [[ ${2} == "no_nl" ]]; then
     echo -n "$(date) - ${1}"
@@ -266,9 +271,10 @@ while true; do
     SQL_DOMAIN_ARR+=("${domains}")
   done < <(mysql --socket=/var/run/mysqld/mysqld.sock -u ${DBUSER} -p${DBPASS} ${DBNAME} -e "SELECT domain FROM domain WHERE backupmx=0" -Bs)
 
+  if [[ ${ONLY_MAILCOW_HOSTNAME} != "y" ]]; then
   for SQL_DOMAIN in "${SQL_DOMAIN_ARR[@]}"; do
     for SUBDOMAIN in "${ADDITIONAL_WC_ARR[@]}"; do
-      if [[  "${SUBDOMAIN}.${SQL_DOMAIN}" != "${MAILCOW_HOSTNAME}" ]]; then
+      if [[ "${SUBDOMAIN}.${SQL_DOMAIN}" != "${MAILCOW_HOSTNAME}" ]]; then
         A_SUBDOMAIN=$(dig A ${SUBDOMAIN}.${SQL_DOMAIN} +short | tail -n 1)
         AAAA_SUBDOMAIN=$(dig AAAA ${SUBDOMAIN}.${SQL_DOMAIN} +short | tail -n 1)
         # Check if CNAME without v6 enabled target
@@ -305,6 +311,7 @@ while true; do
       fi
     done
   done
+  fi
 
   A_MAILCOW_HOSTNAME=$(dig A ${MAILCOW_HOSTNAME} +short | tail -n 1)
   AAAA_MAILCOW_HOSTNAME=$(dig AAAA ${MAILCOW_HOSTNAME} +short | tail -n 1)
@@ -340,6 +347,7 @@ while true; do
     log_f "No A or AAAA record found for hostname ${MAILCOW_HOSTNAME}"
   fi
 
+  if [[ ${ONLY_MAILCOW_HOSTNAME} != "y" ]]; then
   for SAN in "${ADDITIONAL_SAN_ARR[@]}"; do
     # Skip on CAA errors for SAN
     SAN_PARENT_DOMAIN=$(echo ${SAN} | cut -d. -f2-)
@@ -389,6 +397,7 @@ while true; do
       log_f "No A or AAAA record found for hostname ${SAN}"
     fi
   done
+  fi
 
   # Unique elements
   ALL_VALIDATED=(${VALIDATED_MAILCOW_HOSTNAME} $(echo ${VALIDATED_CONFIG_DOMAINS[*]} ${ADDITIONAL_VALIDATED_SAN[*]} | xargs -n1 | sort -u | xargs))