下载 mysqlclient 时 Docker-compose 出错答案

【问题标题】：Docker-compose gives error when downloading mysqlclient下载 mysqlclient 时 Docker-compose 出错
【发布时间】：2020-07-16 16:08:41
【问题描述】：

我在构建 docker-compose.yml 时遇到此错误。我有一个 django 项目，当我尝试安装它的依赖项时，出现以下错误：

ERROR: Command errored out with exit status 1:
     command: /usr/local/bin/python -c 'import sys, setuptools, tokenize; sys.argv[0] = '"'"'/tmp/pip-install-_okt_256/mysqlclient/setup.py'"'"'; __file__='"'"'/tmp/pip-install-_okt_256/mysqlclient/setup.py'"'"';f=getattr(tokenize, '"'"'open'"'"', open)(__file__);code=f.read().replace('"'"'\r\n'"'"', '"'"'\n'"'"');f.close();exec(compile(code, __file__, '"'"'exec'"'"'))' egg_info --egg-base /tmp/pip-pip-egg-info-9yseytwi
         cwd: /tmp/pip-install-_okt_256/mysqlclient/
    Complete output (12 lines):
    /bin/sh: 1: mysql_config: not found
    /bin/sh: 1: mariadb_config: not found
    /bin/sh: 1: mysql_config: not found
    Traceback (most recent call last):
      File "<string>", line 1, in <module>
      File "/tmp/pip-install-_okt_256/mysqlclient/setup.py", line 15, in <module>
        metadata, options = get_config()
      File "/tmp/pip-install-_okt_256/mysqlclient/setup_posix.py", line 65, in get_config
        libs = mysql_config("libs")
      File "/tmp/pip-install-_okt_256/mysqlclient/setup_posix.py", line 31, in mysql_config
        raise OSError("{} not found".format(_mysql_config_path))
    OSError: mysql_config not found
    ----------------------------------------
ERROR: Command errored out with exit status 1: python setup.py egg_info Check the logs for full command output.

下面是我的 requirements.txt

asgiref==3.2.10
astroid==2.4.2
certifi==2020.6.20
chardet==3.0.4
colorama==0.4.3
defusedxml==0.6.0
Django==3.0.8
django-common-helpers==0.9.2
django-cron==0.5.1
django-templated-mail==1.1.1
djangorestframework==3.11.0
idna==2.10
install==1.3.3
isort==4.3.21
lazy-object-proxy==1.4.3
mccabe==0.6.1
mysqlclient==2.0.1
oauthlib==3.1.0
pylint==2.5.3
pylint-plugin-utils==0.6
python3-openid==3.2.0
pytz==2020.1
requests==2.24.0
requests-oauthlib==1.3.0
six==1.15.0
sqlparse==0.3.1
toml==0.10.1
urllib3==1.25.9
wrapt==1.12.1

下载mysqlclient时弹出错误。

有人帮忙

docker-compose.yml 看起来像这样

version: '3.7'

services:
  db:
    image: mysql:5.6
    ports:
      - "3306:3306"
    environment:
      MYSQL_DATABASE: 'djangodatabase'
      MYSQL_USER: 'admin'
      MYSQL_PASSWORD: '12345'
      MYSQL_ROOT_PASSWORD: '12345'
  web:
    build: .
    command: python manage.py runserver 127.0.0.1:8000
    volumes:
      - .:/code
    ports:
      - "8000:8000"
    depends_on:
      - db

这是我的 Docker 文件：

FROM python:3.8-slim
ENV PYTHONBUFFERED 1
RUN mkdir /code
WORKDIR /code
COPY requirements.txt /code/
RUN pip install -r requirements.txt
COPY . /code/

【问题讨论】：

缺少一些依赖项检查这个问题stackoverflow.com/questions/5178292/…
@SergioTanaka，我已经检查过这个问题，但无法弄清楚。我的项目在本地完美运行。我已经使用了所有的依赖项
粘贴你的compose文件，你需要在你的容器中安装libmysqlclient-dev
@SergioTanaka：我已经添加了文件
尝试运行 docker-compose build -> docker-compose run web apt update 和 docker-compose run web apt install libmysqlclient-dev -> docker-compose up

标签： django docker docker-compose

【解决方案1】：

FROM python:3.7-slim
RUN apt-get update
RUN apt-get install -y gcc
RUN apt-get install -y default-libmysqlclient-dev
ENV PYTHONBUFFERED 1

RUN mkdir /code
WORKDIR /code

COPY requirements.txt /code/

RUN pip install -r requirements.txt

COPY . /code/

通过在我的 docker 文件中添加 default-libmysqlclient-dev 依赖项解决了这个问题。

【讨论】：

【解决方案2】：

将以下依赖项添加到您的 Dockerfile 中

FROM python:3.8-slim

ENV PYTHONBUFFERED 1

WORKDIR /code

COPY requirements.txt /code/

RUN apt update && \
    apt install -y libmariadb-dev-compat libmariadb-dev && \
    pip install -r requirements.txt

COPY . /code/

会有用的

【讨论】：