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# `python-base` sets up all our shared environment variables | ||
FROM python:3.9-slim as python-base | ||
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ENV PYTHONUNBUFFERED=1 \ | ||
# prevents python creating .pyc files | ||
PYTHONDONTWRITEBYTECODE=1 \ | ||
\ | ||
PIP_NO_CACHE_DIR=off \ | ||
PIP_DISABLE_PIP_VERSION_CHECK=on \ | ||
PIP_DEFAULT_TIMEOUT=100 \ | ||
\ | ||
# https://python-poetry.org/docs/configuration/#using-environment-variables | ||
POETRY_VERSION=1.1.5 \ | ||
# make poetry install to this location | ||
POETRY_HOME="/opt/poetry" \ | ||
# make poetry create the virtual environment in the project's root | ||
# it gets named `.venv` | ||
POETRY_VIRTUALENVS_IN_PROJECT=true \ | ||
# do not ask any interactive question | ||
POETRY_NO_INTERACTION=1 \ | ||
\ | ||
# this is where our requirements + virtual environment will live | ||
PYSETUP_PATH="/opt/pysetup" \ | ||
VENV_PATH="/opt/pysetup/.venv" | ||
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# prepend poetry and venv to path | ||
ENV PATH="$POETRY_HOME/bin:$VENV_PATH/bin:$PATH" | ||
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# `builder-base` stage is used to build deps + create our virtual environment | ||
FROM python-base as builder-base | ||
RUN apt-get update \ | ||
&& apt-get install --no-install-recommends -y \ | ||
curl \ | ||
build-essential | ||
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# install poetry - respects $POETRY_VERSION & $POETRY_HOME | ||
RUN curl -sSL https://raw.githubusercontent.com/python-poetry/poetry/master/get-poetry.py | python | ||
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# copy project requirement files here to ensure they will be cached. | ||
WORKDIR $PYSETUP_PATH | ||
COPY poetry.lock pyproject.toml ./ | ||
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ENV PATH="${PATH}:/root/.poetry/bin" | ||
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# install runtime deps - uses $POETRY_VIRTUALENVS_IN_PROJECT internally | ||
RUN poetry install --no-dev | ||
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# `development` image is used during development / testing | ||
FROM python-base as development | ||
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RUN apt-get update && apt-get upgrade -y curl \ | ||
awscli | ||
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WORKDIR $PYSETUP_PATH | ||
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# copy in our built poetry + venv | ||
COPY --from=builder-base $POETRY_HOME $POETRY_HOME | ||
COPY --from=builder-base $PYSETUP_PATH $PYSETUP_PATH | ||
ENV PATH="${PATH}:/root/.poetry/bin" | ||
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# will become mountpoint of our code | ||
WORKDIR /app | ||
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COPY errorLogsToSlack.py poetry.lock pyproject.toml ./ | ||
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# quicker install as runtime deps are already installed | ||
RUN poetry install | ||
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# notice I haven't set the environment variables here, these | ||
# should be configured at invocation time | ||
CMD ["poetry", "run", "python3", "./errorLogsToSlack.py"] |