Question

由于要尝试运行的Dep非常过时，我一直在互联网上搜索了2天，现在正在寻找一种方法来安装9.6的postgresql-dev。不幸的是，运行以下Dockerfile命令：

FROM python:2.7-alpine
ENV PYTHONUNBUFFERED 1
RUN mkdir /app/
RUN mkdir ./app/logs/
RUN mkdir ./app/xxx/
WORKDIR /app/xxx/
ADD requirements.txt /app/xxx/
ADD ./ /app/xxx/
RUN apk --update add python py-pip openssl postgresql-dev ca-certificates py-openssl libffi-dev musl-dev openssl-dev wget build-base gcc python-dev py-pip jpeg-dev zlib-dev libx
ml2 libxslt-dev                                                                                                                                                                 
ENV LIBRARY_PATH=/lib:/usr/lib
RUN pip install --upgrade pip setuptools
RUN pip install psycopg2==2.4.5

给我以下错误：

Collecting psycopg2==2.4.5
  Downloading https://files.pythonhosted.org/packages/36/77/894a5dd9f3f55cfc85682d3e6473ee5103d8d418b95baf4019fad3ffa026/psycopg2-2.4.5.tar.gz (719kB)
    Complete output from command python setup.py egg_info:
    running egg_info
    creating pip-egg-info/psycopg2.egg-info
    writing pip-egg-info/psycopg2.egg-info/PKG-INFO
    writing top-level names to pip-egg-info/psycopg2.egg-info/top_level.txt
    writing dependency_links to pip-egg-info/psycopg2.egg-info/dependency_links.txt
    writing manifest file 'pip-egg-info/psycopg2.egg-info/SOURCES.txt'
    Error: could not determine PostgreSQL version from '11.2'

    ----------------------------------------
Command "python setup.py egg_info" failed with error code 1 in /tmp/pip-install-UcoQQZ/psycopg2/

据我所知，这意味着我需要9.6时从postgresql-dev安装PostgreSQL 11.2。我似乎在任何地方都找不到该apk，并且运行postgresql-dev = 9.6.5或其等效项似乎也无法正常工作。

有什么方法可以从python2.7 alpine（或任何其他docker）获得此版本的postgresql-dev吗？我看到有postgres docker容器，但是我是docker的新手，也无法运行它们（psycopg2完全找不到它们的安装）

Answer 1

在Alpine存储库中，最接近postgresql-dev 9.6.5的版本是9.6.10-r0，在Alpine 3.5中使用： https://pkgs.alpinelinux.org/package/v3.5/main/x86_64/postgresql-dev

不管您的Alpine版本如何，您都可以指示apk从V3.5 apk存储库中选择此确切版本：

apk add postgresql-dev=9.6.10-r0 --repository=http://dl-cdn.alpinelinux.org/alpine/v3.5/main

Answer 2

这对我有用：

# Python 3.6 on Alpine linux, a snall secure flavor of linux
FROM python:3.6-alpine

# Add community repositories to install dependencies
RUN echo "http://dl-8.alpinelinux.org/alpine/edge/community" >> /etc/apk/repositories

# These dependencies are required for matplotlib and numpy
RUN apk --no-cache --update-cache add gcc freetype-dev libpng-dev musl-dev linux-headers g++ gfortran python3-dev

# This symlink fixes an error in numpy compilation
RUN ln -s /usr/include/locale.h /usr/include/xlocale.h

# Postgres libs and dependencies, plus python-ldap depdency
RUN apk --no-cache --update-cache add postgresql-libs postgresql-dev libffi-dev openldap-dev unixodbc-dev git 

COPY requirements.txt /app_name/requirements.txt

RUN pip3 install --upgrade pip
RUN pip3 intall --upgrade setuptools

RUN pip3 install -r /app_name/requirements.txt # includes psycopg2==2.7.3.1

也许您可以将其翻译为与python27一起使用？

（Btw Python 2.7即将消失，仅供参考）

在Dockerfile中为Postgres 9.6.x安装postgresql-dev吗？

2 个答案: