Dockerfile

# ---- Build stage ----
FROM python:3.11-slim AS build

WORKDIR /app

# Install build dependencies
RUN apt-get update && apt-get install -y \
    build-essential \
    git \
    curl \
    libgomp1 \
    && rm -rf /var/lib/apt/lists/*

# Upgrade pip
RUN pip install --upgrade pip

# Copy requirements
COPY requirements.txt ./

# Install dependencies into a temporary directory
RUN pip install --prefix=/install -r requirements.txt

# Copy application code
COPY src/ ./src/

# ---- Runtime stage ----
FROM python:3.11-slim

WORKDIR /app

# Install runtime dependencies only
RUN apt-get update && apt-get install -y libgomp1 curl git \
    && rm -rf /var/lib/apt/lists/*

# Copy installed Python packages from build stage
COPY --from=build /install /usr/local

# Copy application code
COPY --from=build /app/src ./src

# Expose Streamlit port
EXPOSE 8501

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

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