你能给我一个Dockerfile的例子吗?我可以在其中安装所有我需要的软件包。锁定和pyproject。toml到我的镜像/容器从Docker?
当前回答
博士TL;
我已经能够使用postgres为Django项目创建诗歌。在做了一些研究后，我最终得到了以下Dockerfile:
FROM python:slim
# Keeps Python from generating .pyc files in the container
ENV PYTHONDONTWRITEBYTECODE 1
# Turns off buffering for easier container logging
ENV PYTHONUNBUFFERED 1
# Install and setup poetry
RUN pip install -U pip \
&& apt-get update \
&& apt install -y curl netcat \
&& curl -sSL https://raw.githubusercontent.com/python-poetry/poetry/master/get-poetry.py | python -
ENV PATH="${PATH}:/root/.poetry/bin"
WORKDIR /usr/src/app
COPY . .
RUN poetry config virtualenvs.create false \
&& poetry install --no-interaction --no-ansi
# run entrypoint.sh
ENTRYPOINT ["/usr/src/app/entrypoint.sh"]
这是entrypoint.sh的内容:
#!/bin/sh
if [ "$DATABASE" = "postgres" ]
then
echo "Waiting for postgres..."
while ! nc -z $SQL_HOST $SQL_PORT; do
sleep 0.1
done
echo "PostgreSQL started"
fi
python manage.py migrate
exec "$@"
详细解释
需要注意以下几点:
I have decide to use slim instead of alpine as tag for the python image because even though alpine images are supposed to reduce the size of Docker images and speed up the build, with Python, you can actually end up with a bit larger image and that takes a while to build (read this article for more info). Using this configuration builds containers faster than using the alpine image because I do not need to add some extra packages to install Python packages properly. I am installing poetry directly from the URL provided in the documentation. I am aware of the warnings provided by sobolevn. However, I consider that it is better in the long term to use the lates version of poetry by default than relying on an environment variable that I should update periodically. Updating the environment variable PATH is crucial. Otherwise, you will get an error saying that poetry was not found. Dependencies are installed directly in the python interpreter of the container. It does not create poetry to create a virtual environment before installing the dependencies.
如果你需要这个Dockerfile的alpine版本:
FROM python:alpine
# Keeps Python from generating .pyc files in the container
ENV PYTHONDONTWRITEBYTECODE 1
# Turns off buffering for easier container logging
ENV PYTHONUNBUFFERED 1
# Install dev dependencies
RUN apk update \
&& apk add curl postgresql-dev gcc python3-dev musl-dev openssl-dev libffi-dev
# Install poetry
RUN pip install -U pip \
&& curl -sSL https://raw.githubusercontent.com/python-poetry/poetry/master/get-poetry.py | python -
ENV PATH="${PATH}:/root/.poetry/bin"
WORKDIR /usr/src/app
COPY . .
RUN poetry config virtualenvs.create false \
&& poetry install --no-interaction --no-ansi
# run entrypoint.sh
ENTRYPOINT ["/usr/src/app/entrypoint.sh"]
注意，alpine版本需要一些依赖关系postgresql-dev gcc python3-dev musl-dev openssl-dev libffi-dev才能正常工作。
其他回答
博士TL;
我已经能够使用postgres为Django项目创建诗歌。在做了一些研究后，我最终得到了以下Dockerfile:
FROM python:slim
# Keeps Python from generating .pyc files in the container
ENV PYTHONDONTWRITEBYTECODE 1
# Turns off buffering for easier container logging
ENV PYTHONUNBUFFERED 1
# Install and setup poetry
RUN pip install -U pip \
&& apt-get update \
&& apt install -y curl netcat \
&& curl -sSL https://raw.githubusercontent.com/python-poetry/poetry/master/get-poetry.py | python -
ENV PATH="${PATH}:/root/.poetry/bin"
WORKDIR /usr/src/app
COPY . .
RUN poetry config virtualenvs.create false \
&& poetry install --no-interaction --no-ansi
# run entrypoint.sh
ENTRYPOINT ["/usr/src/app/entrypoint.sh"]
这是entrypoint.sh的内容:
#!/bin/sh
if [ "$DATABASE" = "postgres" ]
then
echo "Waiting for postgres..."
while ! nc -z $SQL_HOST $SQL_PORT; do
sleep 0.1
done
echo "PostgreSQL started"
fi
python manage.py migrate
exec "$@"
详细解释
需要注意以下几点:
I have decide to use slim instead of alpine as tag for the python image because even though alpine images are supposed to reduce the size of Docker images and speed up the build, with Python, you can actually end up with a bit larger image and that takes a while to build (read this article for more info). Using this configuration builds containers faster than using the alpine image because I do not need to add some extra packages to install Python packages properly. I am installing poetry directly from the URL provided in the documentation. I am aware of the warnings provided by sobolevn. However, I consider that it is better in the long term to use the lates version of poetry by default than relying on an environment variable that I should update periodically. Updating the environment variable PATH is crucial. Otherwise, you will get an error saying that poetry was not found. Dependencies are installed directly in the python interpreter of the container. It does not create poetry to create a virtual environment before installing the dependencies.
如果你需要这个Dockerfile的alpine版本:
FROM python:alpine
# Keeps Python from generating .pyc files in the container
ENV PYTHONDONTWRITEBYTECODE 1
# Turns off buffering for easier container logging
ENV PYTHONUNBUFFERED 1
# Install dev dependencies
RUN apk update \
&& apk add curl postgresql-dev gcc python3-dev musl-dev openssl-dev libffi-dev
# Install poetry
RUN pip install -U pip \
&& curl -sSL https://raw.githubusercontent.com/python-poetry/poetry/master/get-poetry.py | python -
ENV PATH="${PATH}:/root/.poetry/bin"
WORKDIR /usr/src/app
COPY . .
RUN poetry config virtualenvs.create false \
&& poetry install --no-interaction --no-ansi
# run entrypoint.sh
ENTRYPOINT ["/usr/src/app/entrypoint.sh"]
注意，alpine版本需要一些依赖关系postgresql-dev gcc python3-dev musl-dev openssl-dev libffi-dev才能正常工作。
这是最适合我的最小配置:
FROM python:3.7
ENV PIP_DISABLE_PIP_VERSION_CHECK=on
RUN pip install poetry
WORKDIR /app
COPY poetry.lock pyproject.toml /app/
RUN poetry config virtualenvs.create false
RUN poetry install --no-interaction
COPY . /app
注意，它不像@sobolevn的配置那样安全。
作为一个小问题，我将补充一下pyproject是否可以进行可编辑安装。Toml项目，可以删除一两行:
FROM python:3.7
ENV PIP_DISABLE_PIP_VERSION_CHECK=on
WORKDIR /app
COPY poetry.lock pyproject.toml /app/
RUN pip install -e .
COPY . /app
我的Dockerfile基于@lmiguelvargasf的回答。请参考他的帖子获得更详细的解释。我唯一的重大改变是以下几点:
我现在使用的是最新的官方安装程序install- poem .py，而不是官方文档中推荐的已弃用的get- poem .py。我还使用——version标志安装了一个特定的版本，但你也可以使用环境变量poeetry_version。更多关于他们官方文件的信息! 我使用的PATH是/root/。local/bin:$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()" ]
在将诗歌与docker一起使用时，有几件事需要记住。
安装
安装诗歌的官方方式是:
curl -sSL https://install.python-poetry.org | python3 -
这种方式允许诗歌及其依赖从你的依赖中分离出来。但是，在我看来，这不是一件很好的事情，有两个原因:
诗歌版本可能会得到更新，它会破坏你的构建。在这种情况下，您可以指定poeetry_version环境变量。安装程序将尊重它 我不喜欢在没有任何保护措施的情况下，将来自互联网的文件传输到我的容器中
所以，我使用pip安装'poetry==$ poeetry_version '。如您所见，我仍然建议固定您的版本。
另外，把这个版本固定在pyproject中。Toml也是:
[build-system]
# Should be the same as `$POETRY_VERSION`:
requires = ["poetry-core>=1.0.0"]
build-backend = "poetry.core.masonry.api"
它将保护您避免本地和docker环境之间的版本不匹配。
缓存的依赖关系
我们想要缓存我们的需求，并且只在pyproject时重新安装它们。汤姆或诗歌。锁定文件更改。否则构建会很慢。为了实现工作缓存层，我们应该放:
COPY poetry.lock pyproject.toml /code/
在安装诗词之后，但在添加任何其他文件之前。
Virtualenv
接下来要记住的是virtualenv创建。我们在docker中不需要它。它已经被孤立了。因此，我们使用诗意配置virtualenvs。创建假设置关闭它。
开发vs生产
如果你像我一样使用相同的Dockerfile进行开发和生产，你将需要根据一些环境变量安装不同的依赖集:
poetry install $(test "$YOUR_ENV" == production && echo "--no-dev")
通过这种方式，$YOUR_ENV将控制将安装哪些依赖集:all(默认)或仅生产带有——no-dev标志。
你可能还想添加一些更好的体验选项:
——无互动不要问任何互动问题 ——no-ansi标志，使您的输出更日志友好
结果
你会得到类似的结果:
FROM python:3.6.6-alpine3.7
ARG YOUR_ENV
ENV YOUR_ENV=${YOUR_ENV} \
PYTHONFAULTHANDLER=1 \
PYTHONUNBUFFERED=1 \
PYTHONHASHSEED=random \
PIP_NO_CACHE_DIR=off \
PIP_DISABLE_PIP_VERSION_CHECK=on \
PIP_DEFAULT_TIMEOUT=100 \
POETRY_VERSION=1.0.0
# System deps:
RUN pip install "poetry==$POETRY_VERSION"
# Copy only requirements to cache them in docker layer
WORKDIR /code
COPY poetry.lock pyproject.toml /code/
# Project initialization:
RUN poetry config virtualenvs.create false \
&& poetry install $(test "$YOUR_ENV" == production && echo "--no-dev") --no-interaction --no-ansi
# Creating folders, and files for a project:
COPY . /code
你可以在这里找到一个真实的例子:weakake -django-template
2019年12月17日更新
将诗歌更新到1.0
2022-11-24更新
更新curl命令使用现代诗歌安装脚本
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
