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Dockerfile

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+# Multi-stage Dockerfile for static frontend deployment
+# Stage 1: Build the diagrams
+FROM python:3.11-slim AS builder
+
+# Install system dependencies for Graphviz
+RUN apt-get update && \
+    apt-get install -y --no-install-recommends \
+    graphviz \
+    && rm -rf /var/lib/apt/lists/*
+
+# Set working directory
+WORKDIR /app
+
+# Copy requirements and install Python dependencies
+COPY requirements.txt .
+RUN pip install --no-cache-dir -r requirements.txt
+
+# Copy source files
+COPY *.py .
+
+# Generate diagrams (outputs will be in /app)
+RUN python lan_architecture.py && \
+    python main.py
+
+# Verify generated files exist
+RUN ls -la *.png || echo "Warning: No PNG files generated"
+
+# Stage 2: Serve with Nginx
+FROM nginx:alpine
+
+# Remove default nginx static assets
+RUN rm -rf /usr/share/nginx/html/*
+
+# Copy generated diagram files from builder stage
+COPY --from=builder /app/*.png /usr/share/nginx/html/
+
+# Copy any HTML/CSS files for the frontend
+COPY public/ /usr/share/nginx/html/
+
+# Create a simple nginx config for serving static files
+RUN echo 'server { \
+    listen 80; \
+    server_name _; \
+    root /usr/share/nginx/html; \
+    index index.html; \
+    location / { \
+        try_files $uri $uri/ /index.html; \
+    } \
+    # Enable CORS if needed \
+    add_header Access-Control-Allow-Origin *; \
+}' > /etc/nginx/conf.d/default.conf
+
+# Expose port 80
+EXPOSE 80
+
+# Health check
+HEALTHCHECK --interval=30s --timeout=3s --start-period=5s --retries=3 \
+    CMD wget --quiet --tries=1 --spider http://localhost/ || exit 1
+
+# Start nginx
+CMD ["nginx", "-g", "daemon off;"]