如何将 mysqlclient 添加到 Poetry 环境

Question

我正在创建一个项目，它需要在 docker 容器中建立从 Python 运行ning 到 MySQL 数据库运行的连接宁在另一个容器中。目前，我的 docker-compose 文件如下所示：

version: "3"

services:

  login:
    build:
      context: ./services/login
      dockerfile: docker/Dockerfile
    ports:
      - "80:80"
    # Need to remove this volume - this is only for dev work
    volumes:
      - ./services/login/app:/app
    # Need to remove this command - this is only for dev work
    command: /start-reload.sh

  db_users:
    image: mysql
    volumes:
      - ./data/mysql/users_data:/var/lib/mysql
      - ./databases/users:/docker-entrypoint-initdb.d/:ro
    restart: always
    ports:
      - 3306:3306
    # Remove 'expose' below for prod
    expose:
      - 3306
    environment:
      MYSQL_ROOT_PASSWORD: password
      MYSQL_DATABASE: users
      MYSQL_USER: user
      MYSQL_PASSWORD: password

我的 Dockerfile login 服务如下所示：

# Note: this needs to be run from parent service directory

FROM tiangolo/uvicorn-gunicorn-fastapi:python3.8

# Install Poetry
RUN curl -sSL https://raw.githubusercontent.com/python-poetry/poetry/master/get-poetry.py | POETRY_HOME=/opt/poetry python && \
    cd /usr/local/bin && \
    ln -s /opt/poetry/bin/poetry && \
    poetry config virtualenvs.create false

# Copy using poetry.lock* in case it doesn't exist yet
COPY ./app/pyproject.toml ./app/poetry.lock* /app/

RUN poetry install --no-root --no-dev

COPY ./app /app

我正在尝试将我的 login 服务连接到 db_users，并想使用 mysqlclient，但是当我运行 poetry add mysqlclient，我收到一个错误，其中包含以下几行：

    /bin/sh: mysql_config: command not found
    /bin/sh: mariadb_config: command not found
    /bin/sh: mysql_config: command not found
    Traceback (most recent call last):
      File "<string>", line 1, in <module>
      File "/private/var/folders/33/5yy7bny964bb0f3zggd1b4440000gn/T/pip-req-build-lak6lqu7/setup.py", line 15, in <module>
        metadata, options = get_config()
      File "/private/var/folders/33/5yy7bny964bb0f3zggd1b4440000gn/T/pip-req-build-lak6lqu7/setup_posix.py", line 70, in get_config
        libs = mysql_config("libs")
      File "/private/var/folders/33/5yy7bny964bb0f3zggd1b4440000gn/T/pip-req-build-lak6lqu7/setup_posix.py", line 31, in mysql_config
        raise OSError("{} not found".format(_mysql_config_path))
    OSError: mysql_config not found
    mysql_config --version
    mariadb_config --version
    mysql_config --libs
    ----------------------------------------
ERROR: Command errored out with exit status 1: python setup.py egg_info Check the logs for full command output.

我假设这与我需要 mysql-connector-c 库才能工作这一事实有关，但我不确定如何在诗歌中实现这一点。

我正在查看以下 this 教程，但由于我不是运行宁 MySQL 本地而是 docker，我不确定如何将这些步骤翻译成 docker.

基本上，我的问题有两个方面：

如何将 mysqlclient 添加到我的 pyproject.toml 文件
如何在我的 docker 环境中使用它？

Answer 1

我忘记了我的开发环境也在 Docker 所以我真的不需要关心诗歌环境。

话虽如此，我将 Docker 文件编辑为如下所示：

# Note: this needs to be run from parent service directory

FROM tiangolo/uvicorn-gunicorn-fastapi:python3.8

RUN apt-get install default-libmysqlclient-dev

# Install Poetry
RUN curl -sSL https://raw.githubusercontent.com/python-poetry/poetry/master/get-poetry.py | POETRY_HOME=/opt/poetry python && \
    cd /usr/local/bin && \
    ln -s /opt/poetry/bin/poetry && \
    poetry config virtualenvs.create false

# Copy using poetry.lock* in case it doesn't exist yet
COPY ./app/pyproject.toml ./app/poetry.lock* /app/

RUN poetry install --no-root --no-dev

COPY ./app /app

现在一切正常。

如何将 mysqlclient 添加到 Poetry 环境

How to add mysqlclient to a Poetry environment

python

mysql

mysql-python

docker

python-poetry