与Docker共享设备（网络摄像头，USB驱动器等） [英] Sharing devices (webcam, USB drives, etc) with Docker

问题描述

我需要从我的Docker容器的主机Linux机器上的 / dev 中分享具体的设备。

I have a need to share specific devices from /dev on my host Linux machine with my docker containers.

- 特权标志适用于在 / dev 中共享当前 docker run 被调用，但任何随后添加或删除的设备都不会传播到容器中。

The --privileged flag works for sharing any devices in /dev that are present at the time docker run is called, but any subsequently added or removed devices do not propagate into the container.

我试过 docker运行-v = / dev：/ dev ... ，但是结束了与/ dev / pts这样的文件的权限和所有权的关系，导致主机无法创建新的伪装终端。

I tried docker run -v=/dev:/dev ... but that ended up screwing with the permissions and ownership of files like /dev/pts, leading to the host machine to not be able to create new psuedo-terminals.

我还尝试了 - 设备标志，但这不允许你分享一个尚不存在的设备。

I also tried the --device flag, but that doesn't allow you to share a device that doesn't yet exist.

最后，我尝试为 -v = / dev / video0：/ dev / video0 ，但是如果/ dev / video0在运行前不存在，docker会在其中创建一个目录，网络摄像头在插入时不会占用/ dev / video0。

Finally, I tried sharing volumes for devices like -v=/dev/video0:/dev/video0 but if /dev/video0 doesn't exist before run, docker creates a directory there and a webcam will not take /dev/video0 when plugged in.

是有没有更好的方法来获得这个支持的功能？

Is there any better way to get this supported functionality?

推荐答案

你正在查看检查标志 - 设备

   --device=[]
      Add a host device to the container (e.g. --device=/dev/sdc:/dev/xvdc:rwm)

有一个愉快的一天！

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