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trvrm/multistage dockerfile

Created July 15, 2020 20:32
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multistage dockerfile
FROM python:3.6 as build
RUN pip install pipenv
WORKDIR /app
COPY Pipfile Pipfile.lock /app/
RUN PIPENV_VENV_IN_PROJECT=1 pipenv sync
FROM python:3.6-slim as application
COPY --from=build /app/.venv /app/.venv/
COPY ./myapp /app/myapp
EXPOSE 80
CMD ["/app/.venv/bin/uvicorn", "--port","80", "--host","0.0.0.0", "myapp:app"]
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trvrm commented Jul 15, 2020

Skeleton for build Python apps in docker using multistage builds and Pipenv.

  • Produces reasonably small output images that don't have unnecessary build tools lying around as a potential security risk.
  • Allows complete dependency control via Pipenv
  • Has short build times when making code changes
  • Has longer build times when changes have been made Pipfile/Pipfile.lock
  • Requires running the same version of Python on your dev machine as in docker to create Pipfile.lock.

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