写入已挂载目录时权限被拒绝

Question

尝试启动已挂载hosts共享文件夹的容器，并将文件<div class="accordion"> <h1>ACCORDION 1</h1> <div class="accordion-text"> Lorem ipsum dolor sit amet consectetur adipiscing elit sed do eiusmod tempor incididunt ut labore. Lorem ipsum dolor sit amet</div> </div> <div class="accordion"> <h1>ACCORDION 2</h1> <div class="accordion-text"> Lorem ipsum dolor sit amet consectetur adipiscing elit sed do eiusmod tempor incididunt ut labore. Lorem ipsum dolor sit amet</div> </div> <div class="accordion"> <h1>ACCORDION 3</h1> <div class="accordion-text"> Lorem ipsum dolor sit amet consectetur adipiscing elit sed do eiusmod tempor incididunt ut labore. Lorem ipsum dolor sit amet</div> </div> <div class="accordion"> <h1>ACCORDION 4</h1> <div class="accordion-text"> Lorem ipsum dolor sit amet consectetur adipiscing elit sed do eiusmod tempor incididunt ut labore. Lorem ipsum dolor sit amet</div> </div> <div class="accordion"> <h1>ACCORDION 5</h1> <div class="accordion-text"> Lorem ipsum dolor sit amet consectetur adipiscing elit sed do eiusmod tempor incididunt ut labore. Lorem ipsum dolor sit amet</div> </div>放在那里：

addd.txt

收到错误：

sudo docker run -it -v ~/shared:/media/ i386/centos:6 echo aaa >> /media/addd.txt

我试图将文件从容器内部保存到共享目录，并且运行正常：

bash: /media/addd.txt: Permission denied

为什么我在docker run procedure期间无法创建文件？

Answer 1

这是因为sudo没有执行输出的重定向。

简单的解决方法：

sudo bash -c "docker run -it -v ~/shared:/media/ i386/centos:6 echo aaa >> /media/addd.txt"

Answer 2

要使重定向在容器内“工作”，您必须使用sh -c 'your_echo_stuff_and_redirection_here'作为容器命令。类似的东西：

• docker run ... sh -c 'echo aaa >> /media/addd.txt'。