Dockerfile

# syntax=docker/dockerfile:1

# Stage 1: Build
FROM python:3.14-slim as builder

# Install uv
COPY --from=ghcr.io/astral-sh/uv:latest /uv /uvx /bin/

WORKDIR /app

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

# Install dependencies (without dev dependencies)
RUN --mount=type=cache,target=/root/.cache/uv \
    uv sync --frozen --no-dev --no-install-project

# Copy source code
COPY src/ src/
COPY README.md ./

# Install the project
RUN --mount=type=cache,target=/root/.cache/uv \
    uv sync --frozen --no-dev


# Stage 2: Runtime
FROM python:3.14-slim as runtime

# Create non-root user for security
RUN groupadd --gid 1000 appgroup && \
    useradd --uid 1000 --gid appgroup --shell /bin/bash --create-home appuser

WORKDIR /app

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

# Set environment variables
ENV PATH="/app/.venv/bin:$PATH"
ENV PYTHONUNBUFFERED=1
ENV PYTHONDONTWRITEBYTECODE=1

# Switch to non-root user
USER appuser

# Default command
ENTRYPOINT ["pypfmt"]
CMD ["--help"]