Dockerfile

# =============================================================================
# Stage 1: Builder
# =============================================================================
FROM python:3.11-slim AS builder

# Copy uv from official image
COPY --from=ghcr.io/astral-sh/uv:0.8.21 /uv /uvx /bin/

# Set working directory
WORKDIR /app

# Configure uv for optimal Docker builds
ENV UV_COMPILE_BYTECODE=1 \
    UV_LINK_MODE=copy

# Copy dependency files
COPY pyproject.toml uv.lock ./

# Install dependencies with cache mount for faster rebuilds
RUN --mount=type=cache,target=/root/.cache/uv \
    uv sync --locked --no-dev --no-install-project

# =============================================================================
# Stage 2: Runtime
# =============================================================================
FROM python:3.11-slim

# Create non-root user and group
RUN groupadd --system --gid 1001 appgroup && \
    useradd --system --uid 1001 --gid appgroup --create-home appuser

# Set working directory
WORKDIR /app

# Copy virtual environment from builder
COPY --from=builder --chown=appuser:appgroup /app/.venv /app/.venv

# Copy application code
COPY --chown=appuser:appgroup ./app ./app

# Create data directory with proper ownership
RUN mkdir -p /app/data && chown appuser:appgroup /app/data

# Add .venv to PATH
ENV PATH="/app/.venv/bin:$PATH"

# Switch to non-root user
USER appuser

# Health check
HEALTHCHECK --interval=30s --timeout=3s --start-period=10s --retries=3 \
    CMD python -c "import sys; sys.exit(0)" || exit 1

# Run the application
CMD ["python", "-m", "app.main"]