# ESXi MCP Server - Modern Python with uv
# Multi-stage build for optimal image size

# Build stage
FROM ghcr.io/astral-sh/uv:python3.11-bookworm-slim AS builder

WORKDIR /app

# Enable bytecode compilation for production
ENV UV_COMPILE_BYTECODE=1
ENV UV_LINK_MODE=copy

# Install dependencies first (cached layer)
RUN --mount=type=cache,target=/root/.cache/uv \
    --mount=type=bind,source=pyproject.toml,target=pyproject.toml \
    --mount=type=bind,source=uv.lock,target=uv.lock \
    uv sync --frozen --no-install-project --no-dev

# Install project
COPY pyproject.toml uv.lock ./
COPY src ./src
RUN --mount=type=cache,target=/root/.cache/uv \
    uv sync --frozen --no-dev --no-editable

# Production stage
FROM python:3.11-slim-bookworm AS production

# Create non-root user
RUN groupadd -r mcpuser && useradd -r -g mcpuser mcpuser

WORKDIR /app

# Install runtime dependencies only
RUN apt-get update && apt-get install -y --no-install-recommends \
    ca-certificates \
    && rm -rf /var/lib/apt/lists/* \
    && apt-get clean

# Copy virtual environment from builder
COPY --from=builder /app/.venv /app/.venv

# Create directories
RUN mkdir -p /app/logs /app/config \
    && chown -R mcpuser:mcpuser /app

# Environment configuration
ENV PATH="/app/.venv/bin:$PATH"
ENV PYTHONUNBUFFERED=1
ENV PYTHONDONTWRITEBYTECODE=1

# Default to SSE transport for Docker
ENV MCP_TRANSPORT=sse
ENV MCP_HOST=0.0.0.0
ENV MCP_PORT=8080

# Switch to non-root user
USER mcpuser

EXPOSE 8080

# Health check
HEALTHCHECK --interval=30s --timeout=10s --start-period=10s --retries=3 \
    CMD python -c "import urllib.request; urllib.request.urlopen('http://localhost:8080')" || exit 1

# Run the MCP server
ENTRYPOINT ["esxi-mcp-server"]
CMD ["--transport", "sse"]