python-project-template/{{ cookiecutter.project_name.lower().replace(' ', '-') }}/Dockerfile at main · a1d4r/python-project-template · GitHub

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################################
# BUILDER
# Used to build deps + create our virtual environment using uv
################################
FROM ghcr.io/astral-sh/uv:python{{ cookiecutter.python_version }}-bookworm-slim AS builder

# Set uv environment variables for optimal Docker builds
ENV UV_COMPILE_BYTECODE=1 \
    UV_LINK_MODE=copy \
    UV_PYTHON_DOWNLOADS=0

# Set Python environment variables
ENV PYTHONUNBUFFERED=1 \
    PYTHONDONTWRITEBYTECODE=1

WORKDIR /app

# Install dependencies first for better Docker layer caching
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 --locked --no-install-project --no-dev

# Copy the project into the image
COPY . /app

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


################################
# DEVELOPMENT
# Image used during development / testing
################################
FROM ghcr.io/astral-sh/uv:python{{ cookiecutter.python_version }}-bookworm-slim AS development

# Set uv environment variables
ENV UV_COMPILE_BYTECODE=1 \
    UV_LINK_MODE=copy \
    UV_PYTHON_DOWNLOADS=0

# Set Python environment variables
ENV PYTHONUNBUFFERED=1 \
    PYTHONDONTWRITEBYTECODE=1

WORKDIR /app

# Install all dependencies including dev dependencies
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 --locked --no-install-project

# Copy the project into the image
COPY . /app

# Install the project itself with dev dependencies
RUN --mount=type=cache,target=/root/.cache/uv \
    uv sync --locked

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

CMD ["python", "-m", "{{ cookiecutter.package_name }}.example"]


################################
# PRODUCTION
# Final image used for runtime without uv
################################
FROM python:{{ cookiecutter.python_version }}-slim-bookworm AS production

# Set Python environment variables
ENV PYTHONUNBUFFERED=1 \
    PYTHONDONTWRITEBYTECODE=1

# Copy the application from the builder
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"

WORKDIR /app
CMD ["python", "-m", "{{ cookiecutter.package_name }}.example"]