如何在Docker容器中使用sudo? [英] How to use sudo inside a docker container?

问题描述

通常，docker容器使用用户 root 运行.我想使用其他用户，使用docker的USER指令没问题.但是此用户应该能够在容器内使用 sudo .该命令丢失.

Normally, docker containers are run using the user root. I'd like to use a different user, which is no problem using docker's USER directive. But this user should be able to use sudo inside the container. This command is missing.

这是一个用于此目的的简单Dockerfile:

Here's a simple Dockerfile for this purpose:

FROM ubuntu:12.04

RUN useradd docker && echo "docker:docker" | chpasswd
RUN mkdir -p /home/docker && chown -R docker:docker /home/docker

USER docker
CMD /bin/bash

运行此容器，我以用户'docker'登录.当我尝试使用sudo时，找不到命令.所以我尝试使用

Running this container, I get logged in with user 'docker'. When I try to use sudo, the command isn't found. So I tried to install the sudo package inside my Dockerfile using

RUN apt-get install sudo

这将导致无法找到软件包sudo

推荐答案

就可以了.正如regan所指出的，我必须将用户添加到sudoers组.但是主要原因是我忘了更新存储库缓存，所以apt-get找不到sudo包.现在正在工作.这是完成的代码:

Just got it. As regan pointed out, I had to add the user to the sudoers group. But the main reason was I'd forgotten to update the repositories cache, so apt-get couldn't find the sudo package. It's working now. Here's the completed code:

FROM ubuntu:12.04

RUN apt-get update && \
      apt-get -y install sudo

RUN useradd -m docker && echo "docker:docker" | chpasswd && adduser docker sudo

USER docker
CMD /bin/bash

这篇关于如何在Docker容器中使用sudo?的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！