Create dockerfile

dockerfile

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+# Dockerfile 1 - Basic Flask API
+FROM python:3.9-slim
+
+WORKDIR /app
+
+# Install dependencies
+COPY requirements.txt .
+RUN pip install --no-cache-dir -r requirements.txt
+
+# Copy application code
+COPY app.py .
+
+# Expose port
+EXPOSE 5000
+
+# Run the application
+CMD ["python", "app.py"]