# Multi-stage build for mosaic-coordinator
# Builder uses the full Python image which already includes gcc/g++/make,
# avoiding a 336 MB build-essential install that exceeds Kaniko disk budget.
FROM python:3.11 AS builder

WORKDIR /app

# Copy dependency files and private registry config
COPY pyproject.toml .
COPY pip.conf /etc/pip.conf

# Create virtual environment and install dependencies
RUN python -m venv /opt/venv
ENV PATH="/opt/venv/bin:$PATH"
COPY src/ ./src/
RUN pip install --no-cache-dir "pip>=25.3" && \
    pip install --no-cache-dir . && \
    pip install --no-cache-dir "setuptools>=80.9" "wheel>=0.46.2"

# Production stage
FROM python:3.11-slim

WORKDIR /app

# Fix system-level CVEs in setuptools and wheel (base image ships vulnerable versions)
RUN pip install --no-cache-dir "setuptools>=80.9" "wheel>=0.46.2"

# Copy virtual environment from builder
COPY --from=builder /opt/venv /opt/venv
ENV PATH="/opt/venv/bin:$PATH"

# Copy application code
COPY src/ ./src/

# Create non-root user
RUN useradd -m -u 1000 coordinator && \
    chown -R coordinator:coordinator /app

USER coordinator

# Environment variables
ENV PYTHONUNBUFFERED=1 \
    PYTHONDONTWRITEBYTECODE=1 \
    HOST=0.0.0.0 \
    PORT=8000

# Health check
HEALTHCHECK --interval=30s --timeout=10s --start-period=5s --retries=3 \
    CMD python -c "import urllib.request; urllib.request.urlopen('http://localhost:8000/health')"

# Expose port
EXPOSE 8000

# Run application
CMD ["uvicorn", "src.main:app", "--host", "0.0.0.0", "--port", "8000"]
