Dockerfile

FROM python:3.9-slim

WORKDIR /app

# Set environment variables early
ENV HOME=/app
ENV TRANSFORMERS_CACHE=/app/.cache/huggingface/hub
ENV XDG_CACHE_HOME=/app/.streamlit

# Install system dependencies
RUN apt-get update && apt-get install -y \
    build-essential \
    ffmpeg \
    curl \
    software-properties-common \
    git \
    && rm -rf /var/lib/apt/lists/*

# Create writable cache directories
RUN mkdir -p /app/.cache/huggingface/hub /app/.streamlit && \
    chmod -R 777 /app/.cache /app/.streamlit

# Copy Python dependencies
COPY requirements.txt ./
RUN pip3 install --no-cache-dir -r requirements.txt

# Copy application files
COPY app.py ./
COPY utils/ ./utils/
COPY models/ ./models/
COPY .streamlit/ .streamlit/

EXPOSE 8501

# Optional health check for Streamlit
HEALTHCHECK CMD curl --fail http://localhost:8501/_stcore/health || exit 1

# Run the Streamlit app
ENTRYPOINT ["streamlit", "run", "app.py", "--server.port=8501", "--server.address=0.0.0.0"]