Use HS for RPC not the app within the Electrs frontend

electrs/docker-compose.yml

@@ -12,7 +12,7 @@ services:
       - electrs
     restart: on-failure
     environment:
-      ELECTRUM_HIDDEN_SERVICE: "${APP_HIDDEN_SERVICE}"
+      ELECTRUM_HIDDEN_SERVICE: "${APP_ELECTRS_RPC_HIDDEN_SERVICE}"
       ELECTRUM_LOCAL_SERVICE: "${DEVICE_DOMAIN_NAME}"
       ELECTRS_HOST: "${APP_ELECTRS_NODE_IP}"
       BITCOIN_HOST: "${APP_BITCOIN_NODE_IP}"

electrs/exports.sh

@@ -1,4 +1,7 @@
 export APP_ELECTRS_IP="10.21.22.4"
 export APP_ELECTRS_NODE_IP="10.21.21.10"
 
-export APP_ELECTRS_NODE_PORT="50001"
+export APP_ELECTRS_NODE_PORT="50001"
+
+rpc_hidden_service_file="${EXPORTS_TOR_DATA_DIR}/app-${EXPORTS_APP_ID}-rpc/hostname"
+export APP_ELECTRS_RPC_HIDDEN_SERVICE="$(cat "${rpc_hidden_service_file}" 2>/dev/null || echo "notyetset.onion")"