我正尝试按照本教程“https://code.visualstudio.com/docs/python/tutorial-deploy-containers”使用 Visual Studio Code 构建一个 docker 镜像。
我创建了一个 django 应用程序，它使用 pyodbc 包连接到 Azure 上的 MSSQLserver。
在构建 docker 镜像期间，我收到以下错误消息:
unable to execute 'gcc': No such file or directory
error: command 'gcc' failed with exit status 1
----------------------------------------
Failed building wheel for pyodbc
和
unable to execute 'gcc': No such file or directory
error: command 'gcc' failed with exit status 1
----------------------------------------
Failed building wheel for typed-ast
我阅读了 linux 系统的解决方案，其中应该安装 python-dev，但由于我在 Windows 机器上工作，所以这不是解决方案。
然后我读到，在 Windows 上，所有需要的文件都在 python 安装的“include”目录中。但是在 venv 安装中这个目录是空的...所以我创建了一个到原始“include”的目录连接。错误仍然存在。
我的 docker 文件包含在下面。
# Python support can be specified down to the minor or micro version
# (e.g. 3.6 or 3.6.3).
# OS Support also exists for jessie & stretch (slim and full).
# See https://hub.docker.com/r/library/python/ for all supported Python
# tags from Docker Hub.
FROM tiangolo/uwsgi-nginx:python3.6-alpine3.7
# Indicate where uwsgi.ini lives
ENV UWSGI_INI uwsgi.ini
# Tell nginx where static files live (as typically collected using Django's
# collectstatic command.
ENV STATIC_URL /app/static_collected
# Copy the app files to a folder and run it from there
WORKDIR /app
ADD . /app
# Make app folder writable for the sake of db.sqlite3, and make that file also writable.
# RUN chmod g+w /app
# RUN chmod g+w /app/db.sqlite3
# If you prefer miniconda:
#FROM continuumio/miniconda3
LABEL Name=hello_django Version=0.0.1
EXPOSE 8000
# Using pip:
RUN python3 -m pip install -r requirements.txt
CMD ["python3", "-m", "hello_django"]
# Using pipenv:
#RUN python3 -m pip install pipenv
#RUN pipenv install --ignore-pipfile
#CMD ["pipenv", "run", "python3", "-m", "hello_django"]
# Using miniconda (make sure to replace 'myenv' w/ your environment name):
#RUN conda env create -f environment.yml
#CMD /bin/bash -c "source activate myenv && python3 -m hello_django"
我可以使用一些帮助来构建没有错误的图像。
根据 2ps 的回答，我几乎在 docker 文件的顶部添加了这些行
FROM tiangolo/uwsgi-nginx:python3.6-alpine3.7
RUN apk update \
&& apk add apk add gcc libc-dev g++ \
&& apk add libffi-dev libxml2 libffi-dev \
&& apk add unixodbc-dev mariadb-dev python3-dev
并收到一个新的错误...
fetch http://dl-cdn.alpinelinux.org/alpine/v3.7/main/x86_64/APKINDEX.tar.gz
fetch http://dl-cdn.alpinelinux.org/alpine/v3.7/community/x86_64/APKINDEX.tar.gz
v3.7.1-98-g2f2e944c59 [http://dl-cdn.alpinelinux.org/alpine/v3.7/main]
v3.7.1-105-g7db92f4321 [http://dl-cdn.alpinelinux.org/alpine/v3.7/community]
OK: 9053 distinct packages available
ERROR: unsatisfiable constraints:
add (missing):
required by: world[add]
apk (missing):
required by: world[apk]
The command '/bin/sh -c apk update && apk add apk add gcc libc-dev g++ && apk add libffi-dev libxml2 libffi-dev && apk add unixodbc-dev mariadb-dev python3-dev' returned a non-zero code: 2
发现添加
RUN echo "ipv6" >> /etc/modules
帮助解决了上面的错误。取自:https://github.com/gliderlabs/docker-alpine/issues/55
该应用程序现在可以正常工作，但与 MsSQL 数据库的预期连接仍然无法正常工作。
Error at /
('01000', "[01000] [unixODBC][Driver Manager]Can't open lib 'ODBC Driver 13 for SQL Server' : file not found (0) (SQLDriverConnect)")
我想我应该亲手处理一些 docker 文档。
最佳答案
我放弃了alpine的解决方案，转而使用debian
FROM python:3.7
# needed files for pyodbc
RUN apt-get update
RUN apt-get install gcc libc-dev g++ libffi-dev libxml2 libffi-dev unixodbc-dev -y
# MS SQL driver 17 for debian
RUN apt-get install apt-transport-https \
&& curl https://packages.microsoft.com/keys/microsoft.asc | apt-key add -\
&& curl https://packages.microsoft.com/config/debian/9/prod.list > /etc/apt/sources.list.d/mssql-release.list \
&& apt-get update \
&& ACCEPT_EULA=Y apt-get install msodbcsql17 -y
关于django - 在 Windows 上为 django 构建 docker 镜像时出现 gcc 错误，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/54482633/