Dockerfile

FROM python:3.9-slim

# Set working directory
WORKDIR /app

# Install system dependencies (only what you need)
RUN apt-get update && apt-get install -y --no-install-recommends \
    build-essential \
    curl \
    git \
    && rm -rf /var/lib/apt/lists/*

# Install Python dependencies first (to leverage Docker cache)
COPY requirements.txt .
RUN pip install --no-cache-dir --upgrade pip \
    && pip install --no-cache-dir -r requirements.txt

# Copy source code
COPY src/ ./src/

# Streamlit default port
EXPOSE 8501

# Healthcheck for container monitoring
HEALTHCHECK CMD curl --fail http://localhost:8501/_stcore/health || exit 1

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