Create Dockerfile

Dockerfile

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+# Use an official lightweight Python image.
+FROM python:3.11-slim
+
+# Set environment variables
+ENV PYTHONDONTWRITEBYTECODE=1
+ENV PYTHONUNBUFFERED=1
+
+# Create a non-root user (Recommended for HF Spaces security permissions)
+RUN useradd -m -u 1000 user
+USER user
+ENV PATH="/home/user/.local/bin:$PATH"
+
+# Set the working directory in the container
+WORKDIR /app
+
+# Copy the requirements file first to leverage Docker cache
+# Note the --chown flag to ensure the non-root user owns the files
+COPY --chown=user ./requirements.txt requirements.txt
+
+# Install dependencies
+RUN pip install --no-cache-dir --upgrade -r requirements.txt
+
+# Copy the rest of the application code
+COPY --chown=user . /app
+
+# Expose the port strictly required by Hugging Face Spaces
+EXPOSE 7860
+
+# Healthcheck updated to check the correct port
+HEALTHCHECK CMD curl --fail http://localhost:7860/_stcore/health || exit 1
+
+# Command to run the application
+# Note the addition of --server.port=7860
+CMD ["streamlit", "run", "app.py", "--server.address=0.0.0.0", "--server.port=7860"]