Dockerfile

# Base image
FROM python:3.10-slim

# Set environment variables
ENV HOME=/app
ENV STREAMLIT_HOME=/app/.streamlit

# Set working directory
WORKDIR /app

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

# Copy app files
COPY requirements.txt .
COPY app.py .

# Install Python dependencies
RUN pip install --upgrade pip && \
    pip install -r requirements.txt

# Create a writable .streamlit directory
RUN mkdir -p $STREAMLIT_HOME

# Optional: basic Streamlit config to avoid warnings
RUN echo "\
[server]\n\
headless = true\n\
enableCORS = false\n\
port = 8501\n\
" > $STREAMLIT_HOME/config.toml

# Expose Streamlit port
EXPOSE 8501

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

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