Dockerfile

# Ref: https://github.com/fastapi/full-stack-fastapi-template/blob/master/backend/Dockerfile
FROM python:3.12-slim-bookworm

# Print logs immediately
# Ref: https://docs.python.org/3/using/cmdline.html#envvar-PYTHONUNBUFFERED
ENV PYTHONUNBUFFERED=1

# Change the working directory to the `app` directory
WORKDIR /app

# Install uv
# Ref: https://docs.astral.sh/uv/guides/integration/docker/#installing-uv
COPY --from=ghcr.io/astral-sh/uv:0.5.18 /uv /uvx /bin/

# Place executables in the environment at the front of the path
# Ref: https://docs.astral.sh/uv/guides/integration/docker/#using-the-environment
ENV PATH="/app/.venv/bin:$PATH"

# Compile bytecode to speed up the startup time
# Ref: https://docs.astral.sh/uv/guides/integration/docker/#compiling-bytecode
ENV UV_COMPILE_BYTECODE=1

# uv Cache
# Ref: https://docs.astral.sh/uv/guides/integration/docker/#caching
ENV UV_LINK_MODE=copy

# Install dependencies
# Ref: https://docs.astral.sh/uv/guides/integration/docker/#intermediate-layers
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

# Copy the project into the image
COPY . .

# Sync the project
# Ref: https://docs.astral.sh/uv/guides/integration/docker/#intermediate-layers
RUN --mount=type=cache,target=/root/.cache/uv \
    uv sync

# Set the default command
CMD ["python", "src/python_uv/main.py"]