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Dockerfile

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+# Use official Python Alpine base image
+FROM python:3.11-alpine
+
+# Maintainer information
+LABEL maintainer="Balotario Licencia A-I"
+LABEL description="Interactive web application to study driving license test questions"
+LABEL version="1.0.0"
+
+# Set working directory
+WORKDIR /app
+
+# Update system packages for security (CVEs)
+RUN apk update && apk upgrade --no-cache && \
+    rm -rf /var/cache/apk/*
+
+# Copy dependency files
+COPY requirements.txt .
+
+# Install Python dependencies
+RUN pip install --no-cache-dir --upgrade pip && \
+    pip install --no-cache-dir -r requirements.txt
+
+# Copy application code
+COPY . .
+
+# Create non-root user for security
+RUN adduser -D -s /bin/sh app && \
+    chown -R app:app /app
+USER app
+
+# Expose port
+EXPOSE 5000
+
+# Environment variables
+ENV FLASK_APP=app.py
+ENV FLASK_ENV=production
+ENV PYTHONPATH=/app
+
+# Docker health check command
+HEALTHCHECK --interval=30s --timeout=30s --start-period=5s --retries=3 \
+    CMD wget --no-verbose --tries=1 --spider http://localhost:5000/ || exit 1
+
+# Default command
+CMD ["python", "run.py"]