Dockerfile

# Use the official Python image from Docker Hub
FROM python:3.10-slim

# Install system dependencies
RUN apt-get update && \
    apt-get install -y --no-install-recommends \
    cmake \
    build-essential \
    libssl-dev \
    && rm -rf /var/lib/apt/lists/*

# Set the working directory
WORKDIR /app

# Copy requirements and install
COPY requirements.txt .
RUN pip install --no-cache-dir -r requirements.txt

# Copy the application code
COPY app.py .

# Copy the preprocessing script
COPY create_index.py .

# Expose the port Dash will run on
EXPOSE 7860

# Example of using a build-time secret
RUN --mount=type=secret,id=MATERIALS_PROJECT_API_KEY \
    echo "Using secret during build"

# Create the cache directory and set permissions
RUN mkdir -p /app/.cache && chmod -R 777 /app/.cache

# Create the index
RUN --mount=type=secret,id=HF_TOKEN \
    HF_TOKEN=$(cat /run/secrets/HF_TOKEN) python create_index.py

# Set an environment variable for Hugging Face cache
ENV HF_HOME=/app/.cache

# Run the app
CMD ["python", "app.py"]