使用基础镜像centos7在docker中安装Python3.5

Question

我正在尝试安装Python3.5内部docker与基础图像centos7。这是我们的Dockerfile

FROM base-centos7:0.0.8
# Install basic tools
RUN yum install -y which vim wget git gcc
# Install python 3.5
RUN yum install -y https://repo.ius.io/ius-release-el7.rpm \
    && yum update -y \
    && yum install -y python35u python35u-libs python35u-devel python35u-pip


RUN python3.5 -m pip install --upgrade pip

但在构建过程中，docker构建映像失败，出现以下错误

executor failed running [/bin/sh -c yum install -y https://repo.ius.io/ius-release-el7.rpm
&& yum update -y
&& sudo yum install -y python35u python35u-libs python35u-devel python35u-pip]: exit code: 127.

有人能指导我解决这个问题吗？为什么我首先会看到这个问题。

Answer 1

您可以从docker hub使用python图像。

https://hub.docker.com/_/python

dockerfile示例：

FROM python:3.6

RUN mkdir /code
WORKDIR /code
ADD . /code/
RUN pip install -r requirements.txt

EXPOSE 5000
CMD ["python", "/code/app.py"]

我觉得这很简单，不是吗？

Answer 2

centos存储库使用：

FROM centos/s2i-base-centos7

EXPOSE 8080

ENV PYTHON_VERSION=3.5 \
    PATH=$HOME/.local/bin/:$PATH \
    PYTHONUNBUFFERED=1 \
    PYTHONIOENCODING=UTF-8 \
    LC_ALL=en_US.UTF-8 \
    LANG=en_US.UTF-8 \
    PIP_NO_CACHE_DIR=off




RUN INSTALL_PKGS="rh-python35 rh-python35-python-devel rh-python35-python-setuptools rh-python35-python-pip nss_wrapper \
        httpd24 httpd24-httpd-devel httpd24-mod_ssl httpd24-mod_auth_kerb httpd24-mod_ldap \
        httpd24-mod_session atlas-devel gcc-gfortran libffi-devel libtool-ltdl enchant" && \
    yum install -y centos-release-scl && \
    yum -y --setopt=tsflags=nodocs install --enablerepo=centosplus $INSTALL_PKGS && \
    rpm -V $INSTALL_PKGS && \
    # Remove centos-logos (httpd dependency) to keep image size smaller.
    rpm -e --nodeps centos-logos && \
    yum -y clean all --enablerepo='*'

源here

Answer 3

这个问题并不难，我构建的映像正在改变

FROM base-centos7:0.0.8 ====> FROM centos:7

您可以参考https://hub.docker.com/_/centos中centos的镜像版本

PD:容器显示:错误退出(1)，你应该关注主进程。