Dockerfile

# Adapted from: https://github.com/astral-sh/uv-docker-example/blob/main/multistage.Dockerfile

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

WORKDIR /app

# Enable bytecode compilation
ENV UV_COMPILE_BYTECODE=1
# Copy from the cache instead of linking since it's a mounted volume
ENV UV_LINK_MODE=copy

# Install the project's dependencies using the lockfile and settings
RUN --mount=type=cache,target=/root/.cache/uv \
    --mount=type=bind,source=uv.lock,target=uv.lock \
    --mount=type=bind,source=pyproject.toml,target=pyproject.toml \
    uv sync --frozen --no-install-project --no-dev

# Then, add the rest of the project source code and install it
# Installing separately from its dependencies allows optimal layer caching
ADD . /app
RUN --mount=type=cache,target=/root/.cache/uv \
    uv sync --frozen --no-dev

# It is important to use the image that matches the builder, as the path to the
# Python executable must be the same.
FROM python:3.11-slim-bookworm

# Do not buffer logs
ENV PYTHONUNBUFFERED 1

COPY --from=builder --chown=app:app /app /app

# Place executables in the environment at the front of the path
ENV PATH="/app/.venv/bin:$PATH"

CMD ["python_project_boilerplate"]