node.js dashboard works

files/ws_node/Dockerfile

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+# Use an official Node runtime
+FROM node:20-alpine
+
+# Create app directory
+WORKDIR /usr/src/app
+
+# Install dependencies
+COPY package.json .
+RUN npm install --only=production
+
+# Copy app source
+COPY . .
+
+# Expose the port that the app listens on
+EXPOSE 3000
+
+# Start the server
+CMD ["node", "server.js"]