Create Dockerfile

Dockerfile

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+# Use official Node.js image
+FROM node:18
+
+# Set working directory
+WORKDIR /app
+
+RUN npm install express
+
+# Copy the rest of the app files
+COPY . .
+
+# Ensure codes.json exists and set proper permissions
+RUN touch codes.json && echo '{}' > codes.json && chmod 666 codes.json
+
+# Expose port 3000
+EXPOSE 7860
+
+# Start the server
+CMD ["node", "server.js"]