这是对@Claudio提供的答案的一个小修改，它使用了@sobolevn在他的回答中描述的新的诗歌安装-无根特性。

为了强制poetry将依赖项安装到特定的virtualenv中，首先需要启用它。

. /path/to/virtualenv/bin/activate && poetry install

因此，将这些添加到@Claudio的答案中

FROM python:3.10-slim as base

ENV PYTHONFAULTHANDLER=1 \
    PYTHONHASHSEED=random \
    PYTHONUNBUFFERED=1

WORKDIR /app

FROM base as builder

ENV PIP_DEFAULT_TIMEOUT=100 \
    PIP_DISABLE_PIP_VERSION_CHECK=1 \
    PIP_NO_CACHE_DIR=1 \
    POETRY_VERSION=1.3.1

RUN pip install "poetry==$POETRY_VERSION"

COPY pyproject.toml poetry.lock README.md ./
# if your project is stored in src, uncomment line below
# COPY src ./src
# or this if your file is stored in $PROJECT_NAME, assuming `myproject`
# COPY myproject ./myproject
RUN poetry config virtualenvs.in-project true && \
    poetry install --only=main --no-root && \
    poetry build

FROM base as final

COPY --from=builder /app/.venv ./.venv
COPY --from=builder /app/dist .
COPY docker-entrypoint.sh .

RUN ./.venv/bin/pip install *.whl
CMD ["./docker-entrypoint.sh"]

如果您需要将其用于开发目的，您可以通过替换这一行来添加或删除——no-dev

RUN . /venv/bin/activate && poetry install --no-dev --no-root

就像@sobolevn的回答中显示的那样

RUN . /venv/bin/activate && poetry install --no-root $(test "$YOUR_ENV" == production && echo "--no-dev")

在添加适当的环境变量声明之后。

该示例使用debian-slim的图像作为基础，但是，将其调整为基于阿尔卑斯的图像应该是一项微不足道的任务。

使用docker多阶段构建和python slim image，将诗词锁导出到requirements.txt，然后在virtualenv中通过pip安装。

它有最小的尺寸，不需要诗在运行时的形象，钉的版本一切。

FROM python:3.9.7 as base
ENV PIP_DISABLE_PIP_VERSION_CHECK=1
WORKDIR /app

FROM base as poetry
RUN pip install poetry==1.1.12
COPY poetry.lock pyproject.toml /app/
RUN poetry export -o requirements.txt

FROM base as build
COPY --from=poetry /app/requirements.txt /tmp/requirements.txt
RUN python -m venv .venv && \
    .venv/bin/pip install 'wheel==0.36.2' && \
    .venv/bin/pip install -r /tmp/requirements.txt

FROM python:3.9.7-slim as runtime
ENV PIP_DISABLE_PIP_VERSION_CHECK=1
WORKDIR /app
ENV PATH=/app/.venv/bin:$PATH
COPY --from=build /app/.venv /app/.venv
COPY . /app

我看到这里所有的答案都是用pip的方式安装诗词，以避免版本问题。 如果定义为安装最合适的版本，则安装诗歌的官方方法是读取poeetry_version env变量。

在github上有一个问题，我认为这张票的解决方案非常有趣:

# `python-base` sets up all our shared environment variables
FROM python:3.8.1-slim as python-base

    # python
ENV PYTHONUNBUFFERED=1 \
    # prevents python creating .pyc files
    PYTHONDONTWRITEBYTECODE=1 \
    \
    # pip
    PIP_NO_CACHE_DIR=off \
    PIP_DISABLE_PIP_VERSION_CHECK=on \
    PIP_DEFAULT_TIMEOUT=100 \
    \
    # poetry
    # https://python-poetry.org/docs/configuration/#using-environment-variables
    POETRY_VERSION=1.0.3 \
    # 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 \
    \
    # paths
    # this is where our requirements + virtual environment will live
    PYSETUP_PATH="/opt/pysetup" \
    VENV_PATH="/opt/pysetup/.venv"


# prepend poetry and venv to path
ENV PATH="$POETRY_HOME/bin:$VENV_PATH/bin:$PATH"


# `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 \
        # deps for installing poetry
        curl \
        # deps for building python deps
        build-essential

# install poetry - respects $POETRY_VERSION & $POETRY_HOME
RUN curl -sSL https://raw.githubusercontent.com/sdispater/poetry/master/get-poetry.py | python

# copy project requirement files here to ensure they will be cached.
WORKDIR $PYSETUP_PATH
COPY poetry.lock pyproject.toml ./

# install runtime deps - uses $POETRY_VIRTUALENVS_IN_PROJECT internally
RUN poetry install --no-dev


# `development` image is used during development / testing
FROM python-base as development
ENV FASTAPI_ENV=development
WORKDIR $PYSETUP_PATH

# copy in our built poetry + venv
COPY --from=builder-base $POETRY_HOME $POETRY_HOME
COPY --from=builder-base $PYSETUP_PATH $PYSETUP_PATH

# quicker install as runtime deps are already installed
RUN poetry install

# will become mountpoint of our code
WORKDIR /app

EXPOSE 8000
CMD ["uvicorn", "--reload", "main:app"]


# `production` image used for runtime
FROM python-base as production
ENV FASTAPI_ENV=production
COPY --from=builder-base $PYSETUP_PATH $PYSETUP_PATH
COPY ./app /app/
WORKDIR /app
CMD ["gunicorn", "-k", "uvicorn.workers.UvicornWorker", "main:app"]

我的Dockerfile基于@lmiguelvargasf的回答。请参考他的帖子获得更详细的解释。我唯一的重大改变是以下几点:

我现在使用的是最新的官方安装程序install- poem .py，而不是官方文档中推荐的已弃用的get- poem .py。我还使用——version标志安装了一个特定的版本，但你也可以使用环境变量poeetry_version。更多关于他们官方文件的信息! 我使用的PATH是/root/。local/bin:$PATH而不是${PATH}:/root/。诗词/bin从OP的Dockerfile

FROM python:3.10.4-slim-buster

ENV PYTHONDONTWRITEBYTECODE 1 \
    PYTHONUNBUFFERED 1

RUN apt-get update \
    && apt-get install curl -y \
    && curl -sSL https://install.python-poetry.org | python - --version 1.1.13

ENV PATH="/root/.local/bin:$PATH"

WORKDIR /usr/app

COPY pyproject.toml poetry.lock ./

RUN poetry config virtualenvs.create false \
    && poetry install --no-dev --no-interaction --no-ansi

COPY ./src ./

EXPOSE 5000

CMD [ "poetry", "run", "gunicorn", "-b", "0.0.0.0:5000", "test_poetry.app:create_app()" ]

我使用一个锁包(包依赖于锁文件中的所有版本)创建了一个解决方案。这将导致没有需求文件的纯pip安装。

步骤是:构建包，构建锁包，将两个轮子复制到容器中，使用pip安装两个轮子。

安装是:诗词add——dev诗词锁包

docker构建之外的步骤是:

poetry build
poetry run poetry-lock-package --build

然后你的Dockerfile应该包含:

FROM python:3-slim

COPY dist/*.whl /

RUN pip install --no-cache-dir /*.whl \
    && rm -rf /*.whl

CMD ["python", "-m", "entry_module"]

下面是一个剥离的例子，其中首先是一个带有依赖关系的层(仅在这些依赖关系发生变化时构建)，然后将一个带有完整源代码的层添加到图像中。将poetry设置为安装到全局站点包中会留下一个配置工件，该配置工件也可以被删除。

FROM python:alpine

WORKDIR /app

COPY poetry.lock pyproject.toml ./
RUN pip install --no-cache-dir --upgrade pip \
 && pip install --no-cache-dir poetry \
 \
 && poetry config settings.virtualenvs.create false \
 && poetry install --no-dev \
 \
 && pip uninstall --yes poetry \

COPY . ./