Add DNS-01 challenge support for ACME certificates and related configurations

data/Dockerfiles/acme/acme.sh

@@ -42,6 +42,10 @@ if [[ "${ENABLE_SSL_SNI}" =~ ^([yY][eE][sS]|[yY])+$ ]]; then
   ENABLE_SSL_SNI=y
 fi
 
+if [[ "${ACME_DNS_CHALLENGE}" =~ ^([yY][eE][sS]|[yY])+$ ]]; then
+  ACME_DNS_CHALLENGE=y
+fi
+
 if [[ "${SKIP_LETS_ENCRYPT}" =~ ^([yY][eE][sS]|[yY])+$ ]]; then
   log_f "SKIP_LETS_ENCRYPT=y, skipping Let's Encrypt..."
   sleep 365d