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Optimize Docker build
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- Use pip to install Poetry, as the Poetry installer script is
  deprecated.
- Copy dependencies in a separate step from the code itself so
  that the dependencies are cached more efficiently.
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lpsinger committed Jul 16, 2024
1 parent a9fabdb commit 515387e
Showing 1 changed file with 12 additions and 10 deletions.
22 changes: 12 additions & 10 deletions Dockerfile
Original file line number Diff line number Diff line change
@@ -1,13 +1,15 @@
FROM python:3.10 AS build
ENV POETRY_VIRTUALENVS_CREATE false
RUN curl -sSL https://install.python-poetry.org | python -
COPY . /src
WORKDIR /src
RUN $HOME/.local/bin/poetry install --only main
# Install dependencies separately from the package itself. Assuming that the
# requirements change less frequently than the code, this will result in more
# efficient caching of container layers.

FROM python:3.12 AS requirements
RUN pip install --no-cache-dir poetry poetry-plugin-export
COPY pyproject.toml poetry.lock /
RUN poetry export | pip install --no-cache-dir --ignore-installed --root /destdir -r /dev/stdin

FROM python:3.10-slim
COPY --from=build /usr/local/lib/python3.10/site-packages/ /usr/local/lib/python3.10/site-packages/
COPY --from=build /src/ /src/
COPY --from=build /usr/local/bin/gcn-classic-to-kafka /usr/local/bin/
FROM python:3.12-slim
COPY --from=requirements /destdir /
COPY . /src
RUN pip install --no-cache-dir --no-deps --editable /src
ENTRYPOINT ["gcn-classic-to-kafka"]
USER nobody:nogroup

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