将特使Dockerfile基础镜像更新为python 3.6+

Question

我尝试将特使基础映像中的python版本更新为python-3.6。但它不起作用。

下面是我必须使用的基础镜像(特使代理)，默认情况下它具有python-3.5.2 https://github.com/envoyproxy/envoy/blob/master/ci/Dockerfile-envoy-image

FROM ubuntu:16.04

RUN apt-get update \
    && apt-get upgrade -y \
    && apt-get install -y ca-certificates \
    && apt-get autoremove -y \
    && apt-get clean \
    && rm -rf /tmp/* /var/tmp/* \
    && rm -rf /var/lib/apt/lists/*
...

这是我的死蛇/ppa apt-get更新版本

FROM envoyproxy/envoy:latest

RUN apt-get update && apt-get -q install -y \
    curl \
    software-properties-common \
    python-software-properties

RUN add-apt-repository ppa:deadsnakes/ppa
RUN apt-get update && apt-get -q install -y \
    python3.6 \
    python3-pip

RUN python3 --version && pip3 --version

RUN pip3 install gunicorn
ENV LANG C.UTF-8
ENV LC_ALL C.UTF-8
COPY requirements.txt .
RUN pip3 install --no-cache-dir -r ./requirements.txt
RUN mkdir /code
WORKDIR /code
COPY . /code

ADD ./boot.sh /usr/local/bin/boot.sh
RUN chmod u+x /usr/local/bin/boot.sh

ENTRYPOINT /usr/local/bin/boot.sh

非常感谢您的帮助或一些提示，让我自己找到解决方案。

Answer 1

所以我用@ updated建议更新了Dockerfile，现在它起作用了！非常感谢

FROM envoyproxy/envoy:latest

RUN apt-get update && apt-get -q install -y \
    curl \
    software-properties-common \
    python-software-properties

RUN add-apt-repository ppa:deadsnakes/ppa
RUN apt-get update && apt-get -q install -y \
    python3.6 \
    python3-pip

RUN curl https://bootstrap.pypa.io/get-pip.py | python3.6
RUN python3.6 --version && pip3.6 --version

COPY requirements.txt .
RUN pip3.6 install --no-cache-dir -r ./requirements.txt
RUN pip3.6 install gunicorn
ENV LANG C.UTF-8
ENV LC_ALL C.UTF-8
RUN mkdir /code
WORKDIR /code
COPY . /code

ADD ./boot.sh /usr/local/bin/boot.sh
RUN chmod u+x /usr/local/bin/boot.sh

ENTRYPOINT /usr/local/bin/boot.sh

Answer 2

python3和pip3 exec指向system python3.5

我建议在python3.6上安装pip，并且总是使用python3.6和pip3.6来引用新版本。

RUN curl https://bootstrap.pypa.io/get-pip.py | python3.6
RUN python3.6 --version && pip3.6 --version
RUN pip3.6 install --no-cache-dir -r ./requirements.txt