How to: Mount USB Drive (Hotplug/Hot Plug USB)
Start your container.

Pick a port, for example, `7700`.

`lsusb` to get `vid:pid`

On Linux:
`sudo usbredirserver -p 7700 1e3d:2096`

Now, in the Docker window hit Enter to see the `(qemu)` console.

You can add/remove the disk using commands like this, even once the machine is started:

`chardev-add socket,id=usbredirchardev1,port=7700,host=172.17.0.1`

`device_add usb-redir,chardev=usbredirchardev1,id=usbredirdev1,debug=4`