Docker在挂载卷中以root用户身份创建文件 [英] Docker creates files as root in mounted volume

问题描述

我正在使用Docker(1.3.1)在容器内构建RPM:

I'm using Docker (1.3.1) to build RPMs inside a container:

docker run -v /home/matt/build:/build build-rpm /build/build-pkg.sh

这很好用(我的用户在docker组中，所以我不需要sudo)并将一个完整的.rpm文件拖放到当前目录中.问题在于该文件是由root拥有的.

This works fine (my user is in the docker group, so I don't need to sudo) and drops a completed .rpm file in the current directory. The problem is that the file is created as owned by root.

我该如何安排文件以便创建与运行docker的用户相同的用户?

How can I arrange it so that the file is created owned by the same user as I run docker with?

推荐答案

您可以尝试创建一个用户(在自定义映像的Dockerfile中)并将其设置为容器使用的用户

You could try to create (in the Dockerfile of a custom image) a user and set it as the one used by the container

RUN adduser --system --group --shell /bin/sh auser \
 && mkdir /home/auser/bin
USER auser

然后检查docker run -v /home/matt/build:/build build-rpm是否将中的共享文件夹安装为auser.

问题2259 中提到的另一个选项:

Another option mentioned in issue 2259:

如果在绑定安装之前在主机上在主机上chown卷，则该卷将起作用.
在这种情况下，您可以执行以下操作:

If you chown the volume (on the host side) before bind-mounting it, it will work.
In that case, you could do:

mkdir /tmp/www
chown 101:101 /tmp/www
docker run -v /tmp/www:/var/www ubuntu stat -c "%U %G" /var/www

(假设101:101是容器中www-data用户的UID:GID.)

(Assuming that 101:101 is the UID:GID of the www-data user in your container.)

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