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Wallace Kelly
Asked: 2023-11-17 01:00:07 +0800 CST

在 Debian:11 映像中设置 /bin/sh 的 PATH

  • 772

背景

我正在构建一个基于 Debian:11 的镜像。我正在尝试设置PATH为在图像构建时/bin/sh确定的动态值。（“在镜像构建时”很重要。我不能简单地在我的 Dockerfile 中包含一个静态值。）ENV PATH

问题

当我跑步时：

docker build . --tag debian-with-chrome-driver
docker run -it --rm debian-with-chrome-driver
echo $PATH

实际结果是：

/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin

期望的结果是：

/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/chromedriver/linux-119.0.6045.105/chromedriver-linux64

我尝试过的

根据各种 StackExchange 帖子，我尝试进行PATH以下设置：

  • /etc/profile
  • /etc/login.defs
  • /etc/environment

上述文件的相关内容如下：

# tail -n 3 /etc/profile
PATH=${PATH}:/chromedriver/linux-119.0.6045.105/chromedriver-linux64
export PATH

# cat /etc/login.defs | grep chromedriver
ENV_SUPATH      PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/chromedriver/linux-119.0.6045.105/chromedriver-linux64
ENV_PATH        PATH=/usr/local/bin:/usr/bin:/bin:/usr/local/games:/usr/games:/chromedriver/linux-119.0.6045.105/chromedriver-linux64

# cat /etc/environment
PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/chromedriver/linux-119.0.6045.105/chromedriver-linux64

我已经成功设置了bash的路径（如下所示），但是我需要设置sh的路径。

# bash  
root@4e159cfc9fe5:/# echo $PATH
/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/chromedriver/linux-119.0.6045.105/chromedriver-linux64

Dockerfile

你可以自己尝试一下：

docker build . --tag debian-with-chrome-driver

FROM debian:11

RUN apt-get update && apt-get install -y curl

# from https://github.com/nodesource/distributions#deb
RUN curl -SLO https://deb.nodesource.com/nsolid_setup_deb.sh \
    && chmod 500 nsolid_setup_deb.sh \
    && ./nsolid_setup_deb.sh 21 \
    && apt-get -y install nodejs

# from https://developer.chrome.com/blog/chrome-for-testing/#how-can-i-get-chrome-for-testing-binaries
RUN npx -y @puppeteer/browsers install chrome@stable \
    && npx -y @puppeteer/browsers install chromedriver@stable

# add the chromedriver to the PATH
RUN export CHROME_DRIVER_PATH=$(find /chromedriver -name "chromedriver" -type f -executable -printf "%h" -quit) \
    && export APPEND_CHROME_DRIVER_PATH="PATH="'${PATH}'":${CHROME_DRIVER_PATH}" \
    # \
    && echo "export ${APPEND_CHROME_DRIVER_PATH}\n" >> /etc/bash.bashrc \
    && echo "${APPEND_CHROME_DRIVER_PATH}\nexport PATH\n" >> /etc/profile \
    # \
    && export CHROME_DRIVER_PATH_ESCAPED=$(echo ${CHROME_DRIVER_PATH} | sed 's/\//\\\//g') \
    && sed -i '/^ENV_SUPATH.*/ s/$/:'"${CHROME_DRIVER_PATH_ESCAPED}"'/' /etc/login.defs \
    && sed -i '/^ENV_PATH.*/ s/$/:'"${CHROME_DRIVER_PATH_ESCAPED}"'/' /etc/login.defs \
    # \
    && echo "PATH=${PATH}:${CHROME_DRIVER_PATH}\n" >> /etc/environment \
    && echo ${PATH}

ENTRYPOINT [ "bin/sh" ]
shell

1 个回答

  1. Best Answer

    在/bin/shDebian 中 ( dash)/etc/profile等仅用于登录 shell。对于非登录 shell，您可以在ENV环境变量中指定要使用的启动脚本。在你的末尾Dockerfile：

        && echo "PATH=${PATH}:${CHROME_DRIVER_PATH}\n" >> /etc/environment \
    && echo "PATH=${PATH}:${CHROME_DRIVER_PATH}\n" >> /etc/shinit \
    && chmod 755 /etc/shinit \
    && echo ${PATH}

ENV ENV=/etc/shinit

ENTRYPOINT [ "bin/sh" ]
    • 2

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