Question

我正尝试使用多阶段减少python docker映像文件的大小。这是我的Dockerfile。

Dockerfile

FROM ubuntu:18.04 AS builder

WORKDIR /usr/app

RUN apt-get update \
    && apt-get install -y python3-pip python3-dev python3-venv \
    && pip3 install --upgrade pip \
    && python3 -m venv /opt/venv

ENV PATH="/opt/venv/bin:$PATH"

RUN apt-get update && \
    DEBIAN_FRONTEND=noninteractive \
    apt-get -y install \
        build-essential \
        libboost-all-dev \
        cmake \
        clang \
        libcurl4-gnutls-dev \
        curl \
        gnupg2 \
        libssl-dev \
        zlib1g-dev \
        libbz2-dev \
        libreadline-dev \
        libsqlite3-dev \
        llvm \
        libncurses5-dev \
        libncursesw5-dev \
        xz-utils \
        tk-dev \
        libffi-dev \
        git \
        wget \
        ssh \
        libgcrypt-dev \
        gnutls-dev

ENV CC /usr/bin/clang
ENV CXX /usr/bin/clang++

ARG key
RUN mkdir ~/.ssh && echo "Host github.com\n IdentityFile ~/.ssh/id_rsa\n IdentitiesOnly yes" > ~/.ssh/config && \
    echo "$key" > ~/.ssh/id_rsa && \
    chmod 0600 ~/.ssh/id_rsa && \
    ssh-keyscan github.com >> ~/.ssh/known_hosts

COPY requirements.txt .
RUN pip install -r requirements.txt

FROM python:3.7.3-slim

COPY --from=builder /opt/venv /opt/venv
ENV PYTHONPATH="/opt/venv/lib"
ENV PATH="/opt/venv/bin:$PATH"

WORKDIR /usr/app
COPY . .
RUN ./test.sh && rm -rf test*
USER 10001
CMD PYTHONPATH="${PYTHONPATH}:$(pwd)" python prediction_engine/process.py

在第一阶段，which python输出/opt/venv/bin/python 进入第二阶段时，which python输出/usr/local/bin/python

在第一阶段为virtualenv定义的符号链接未正确复制。谁能帮我找出原因。

我确实在第一阶段尝试使用python：3.6-jessie AS构建器，以便两个阶段都使用python映像，但是该映像中缺少许多库，并且某些python库需要c ++ 17进行编译。这是最理想的设置，但是virtualenv在第二阶段不起作用

使用virtualenv的多阶段python docker映像

0 个答案: