RancherOS and sound module (missing /dev/snd)

Don’t know why… works fine now and moved to RancherOS service.

  wpagui:
    image: "dengleros/wpagui"
    container_name: wpagui
#    hostname: wpagui
    restart: always
    net: host
    cap_add:
    - NET_ADMIN
    labels:
    - io.rancher.os.after=xorg
    environment:
    - DISPLAY=:0
    - QT_X11_NO_MITSHM=1
    - QT_GRAPHICSSYSTEM=native
    volumes:
    - dengleros-tmp:/tmp

DenglerOS Desktop with separated xorg, dbus, volumeicon, wpa_gui, fluxbox and sound / wlan. As desktop fluxbox and manually started chromium browser and additional applications (terminator, keepassx, atom, …).