add string returns for metrics and properties

templates/docker-compose.yaml

@@ -14,13 +14,15 @@ services:
     restart: always
   
   ws_node:
+
+    image: node:18-alpine
+    working_dir: /app
+    command: sh -c "npm install && node server.js"
     container_name: ws_node
-    build:
-      context: {{ service_control_web_folder }}/node_server
-      dockerfile: Dockerfile
-    image: ws_node:latest     
     volumes:
       - {{ service_control_web_folder }}/html:/usr/src/app/public
+      - {{ service_control_web_folder }}/node_server:/app
+      - /app/node_modules
     ports:
       # put back to 3000 if the stack is needed
       - {{ (docker_gateway + ':') if secure_api else '' }}80:3000