udevadm does not show all attributes inside a docker container

When I run docker container and list properties of some device with udevadm inside the container, there are only the basic information about the device. When I do the same thing on host, I can see much more. What can I do to get all the information inside the container?

host$ udevadm info --query=property /dev/bus/usb/004/008
BUSNUM=004
DEVNAME=/dev/bus/usb/004/008
DEVNUM=008
DEVPATH=/devices/pci0000:00/0000:00:1d.0/usb4/4-1/4-1.1
DEVTYPE=usb_device
DRIVER=usb
ID_BUS=usb
ID_MODEL=MCP2210_USB-to-SPI_Master
ID_MODEL_ENC=MCP2210 USB-to-SPI Master
ID_MODEL_ID=00de
ID_REVISION=0002
ID_SERIAL=Microchip_Technology_Inc._MCP2210_USB-to-SPI_Master_0000267472
ID_SERIAL_SHORT=0000267472
ID_USB_INTERFACES=:030000:
ID_VENDOR=Microchip_Technology_Inc.
ID_VENDOR_ENC=Microchip Technology Inc.
ID_VENDOR_FROM_DATABASE=Microchip Technology, Inc.
ID_VENDOR_ID=04d8
MAJOR=189
MINOR=391
PRODUCT=4d8/de/2
SUBSYSTEM=usb
TYPE=0/0/0
USEC_INITIALIZED=176769529274

host$ docker run -ti -v /dev/bus/usb/:/dev/bus/usb alpine sh
container# apk update
container# apk add eudev
container# udevadm info --query=property /dev/bus/usb/004/008
BUSNUM=004
DEVNAME=/dev/bus/usb/004/008
DEVNUM=008
DEVPATH=/devices/pci0000:00/0000:00:1d.0/usb4/4-1/4-1.1
DEVTYPE=usb_device
DRIVER=usb
MAJOR=189
MINOR=391
PRODUCT=4d8/de/2
SUBSYSTEM=usb
TYPE=0/0/0

I have also tried to mount other volumes from host: /sys, /dev. Did not help.

EDIT according to the Alex P.'s answer:

I'm not very experienced with udev. I have copied this

SUBSYSTEM=="usb", ENV{DEVTYPE}=="usb_device", IMPORT{builtin}="usb_id", IMPORT{builtin}="hwdb --subsystem=usb"

to /dev/udev/rules.d/10-local.rules, I have set udev logging to debug, reloaded config with udevadm control --reload. Now I get this:

calling: info
P: /devices/pci0000:00/0000:00:1d.0/usb4/4-1/4-1.2
N: bus/usb/004/016
no db file to read /run/udev/data/c189:399: No such file or directory
E: BUSNUM=004
E: DEVNAME=/dev/bus/usb/004/016
E: DEVNUM=016
E: DEVPATH=/devices/pci0000:00/0000:00:1d.0/usb4/4-1/4-1.2
E: DEVTYPE=usb_device
E: DRIVER=usb
E: MAJOR=189
E: MINOR=399
E: PRODUCT=4d8/de/2
E: SUBSYSTEM=usb
E: TYPE=0/0/0

For now still no luck. I tried to run the container with --privileged flag, did not help. I have no other rules in /etc/udev/rules.d. I tried to copy all rules from my host, no luck.

host$ udevadm monitor --environment
    monitor will print the received events for:
UDEV - the event which udev sends out after rule processing
KERNEL - the kernel uevent

KERNEL[183757.837879] add      /devices/pci0000:00/0000:00:1d.0/usb4/4-1/4-1.1 (usb)
ACTION=add
BUSNUM=004
DEVNAME=/dev/bus/usb/004/034
DEVNUM=034
DEVPATH=/devices/pci0000:00/0000:00:1d.0/usb4/4-1/4-1.1
DEVTYPE=usb_device
MAJOR=189
MINOR=417
PRODUCT=4d8/de/2
SEQNUM=5985
SUBSYSTEM=usb
TYPE=0/0/0

KERNEL[183757.838467] add      /devices/pci0000:00/0000:00:1d.0/usb4/4-1/4-1.1/4-1.1:1.0 (usb)
ACTION=add
DEVPATH=/devices/pci0000:00/0000:00:1d.0/usb4/4-1/4-1.1/4-1.1:1.0
DEVTYPE=usb_interface
INTERFACE=3/0/0
MODALIAS=usb:v04D8p00DEd0002dc00dsc00dp00ic03isc00ip00in00
PRODUCT=4d8/de/2
SEQNUM=5986
SUBSYSTEM=usb
TYPE=0/0/0

KERNEL[183757.840044] add      /devices/pci0000:00/0000:00:1d.0/usb4/4-1/4-1.1/4-1.1:1.0/0003:04D8:00DE.001F (hid)
ACTION=add
DEVPATH=/devices/pci0000:00/0000:00:1d.0/usb4/4-1/4-1.1/4-1.1:1.0/0003:04D8:00DE.001F
HID_ID=0003:000004D8:000000DE
HID_NAME=Microchip Technology Inc. MCP2210 USB-to-SPI Master
HID_PHYS=usb-0000:00:1d.0-1.1/input0
HID_UNIQ=0000267472
MODALIAS=hid:b0003g0001v000004D8p000000DE
SEQNUM=5987
SUBSYSTEM=hid

KERNEL[183757.840586] add      /class/usbmisc (class)
ACTION=add
DEVPATH=/class/usbmisc
SEQNUM=5988
SUBSYSTEM=class

KERNEL[183757.840891] add      /devices/pci0000:00/0000:00:1d.0/usb4/4-1/4-1.1/4-1.1:1.0/usbmisc/hiddev0 (usbmisc)
ACTION=add
DEVNAME=/dev/usb/hiddev0
DEVPATH=/devices/pci0000:00/0000:00:1d.0/usb4/4-1/4-1.1/4-1.1:1.0/usbmisc/hiddev0
MAJOR=180
MINOR=0
SEQNUM=5989
SUBSYSTEM=usbmisc

KERNEL[183757.841219] add      /devices/pci0000:00/0000:00:1d.0/usb4/4-1/4-1.1/4-1.1:1.0/0003:04D8:00DE.001F/hidraw/hidraw0 (hidraw)
ACTION=add
DEVNAME=/dev/hidraw0
DEVPATH=/devices/pci0000:00/0000:00:1d.0/usb4/4-1/4-1.1/4-1.1:1.0/0003:04D8:00DE.001F/hidraw/hidraw0
MAJOR=244
MINOR=0
SEQNUM=5990
SUBSYSTEM=hidraw

UDEV  [183757.842324] add      /class/usbmisc (class)
ACTION=add
DEVPATH=/class/usbmisc
SEQNUM=5988
SUBSYSTEM=class
USEC_INITIALIZED=183757842069

UDEV  [183758.395467] add      /devices/pci0000:00/0000:00:1d.0/usb4/4-1/4-1.1 (usb)
ACTION=add
BUSNUM=004
DEVNAME=/dev/bus/usb/004/034
DEVNUM=034
DEVPATH=/devices/pci0000:00/0000:00:1d.0/usb4/4-1/4-1.1
DEVTYPE=usb_device
DRIVER=usb
ID_BUS=usb
ID_MODEL=MCP2210_USB-to-SPI_Master
ID_MODEL_ENC=MCP2210\x20USB-to-SPI\x20Master
ID_MODEL_ID=00de
ID_REVISION=0002
ID_SERIAL=Microchip_Technology_Inc._MCP2210_USB-to-SPI_Master_0000267472
ID_SERIAL_SHORT=0000267472
ID_USB_INTERFACES=:030000:
ID_VENDOR=Microchip_Technology_Inc.
ID_VENDOR_ENC=Microchip\x20Technology\x20Inc.
ID_VENDOR_FROM_DATABASE=Microchip Technology, Inc.
ID_VENDOR_ID=04d8
MAJOR=189
MINOR=417
PRODUCT=4d8/de/2
SEQNUM=5985
SUBSYSTEM=usb
TYPE=0/0/0
USEC_INITIALIZED=183757852027

UDEV  [183758.396989] add      /devices/pci0000:00/0000:00:1d.0/usb4/4-1/4-1.1/4-1.1:1.0 (usb)
ACTION=add
DEVPATH=/devices/pci0000:00/0000:00:1d.0/usb4/4-1/4-1.1/4-1.1:1.0
DEVTYPE=usb_interface
DRIVER=usbhid
ID_VENDOR_FROM_DATABASE=Microchip Technology, Inc.
INTERFACE=3/0/0
MODALIAS=usb:v04D8p00DEd0002dc00dsc00dp00ic03isc00ip00in00
PRODUCT=4d8/de/2
SEQNUM=5986
SUBSYSTEM=usb
TYPE=0/0/0
USEC_INITIALIZED=183758396448

UDEV  [183758.398096] add      /devices/pci0000:00/0000:00:1d.0/usb4/4-1/4-1.1/4-1.1:1.0/usbmisc/hiddev0 (usbmisc)
ACTION=add
DEVNAME=/dev/usb/hiddev0
DEVPATH=/devices/pci0000:00/0000:00:1d.0/usb4/4-1/4-1.1/4-1.1:1.0/usbmisc/hiddev0
MAJOR=180
MINOR=0
SEQNUM=5989
SUBSYSTEM=usbmisc
USEC_INITIALIZED=183758397905

UDEV  [183758.398728] add      /devices/pci0000:00/0000:00:1d.0/usb4/4-1/4-1.1/4-1.1:1.0/0003:04D8:00DE.001F (hid)
ACTION=add
DEVPATH=/devices/pci0000:00/0000:00:1d.0/usb4/4-1/4-1.1/4-1.1:1.0/0003:04D8:00DE.001F
HID_ID=0003:000004D8:000000DE
HID_NAME=Microchip Technology Inc. MCP2210 USB-to-SPI Master
HID_PHYS=usb-0000:00:1d.0-1.1/input0
HID_UNIQ=0000267472
MODALIAS=hid:b0003g0001v000004D8p000000DE
SEQNUM=5987
SUBSYSTEM=hid
USEC_INITIALIZED=183758398168

UDEV  [183758.399920] add      /devices/pci0000:00/0000:00:1d.0/usb4/4-1/4-1.1/4-1.1:1.0/0003:04D8:00DE.001F/hidraw/hidraw0 (hidraw)
ACTION=add
DEVNAME=/dev/hidraw0
DEVPATH=/devices/pci0000:00/0000:00:1d.0/usb4/4-1/4-1.1/4-1.1:1.0/0003:04D8:00DE.001F/hidraw/hidraw0
MAJOR=244
MINOR=0
SEQNUM=5990
SUBSYSTEM=hidraw
USEC_INITIALIZED=183758399726

KERNEL[183758.400685] remove   /devices/pci0000:00/0000:00:1d.0/usb4/4-1/4-1.1/4-1.1:1.0/usbmisc/hiddev0 (usbmisc)
ACTION=remove
DEVNAME=/dev/usb/hiddev0
DEVPATH=/devices/pci0000:00/0000:00:1d.0/usb4/4-1/4-1.1/4-1.1:1.0/usbmisc/hiddev0
MAJOR=180
MINOR=0
SEQNUM=5991
SUBSYSTEM=usbmisc

KERNEL[183758.400766] remove   /usbmisc (class)
ACTION=remove
DEVPATH=/usbmisc
SEQNUM=5992
SUBSYSTEM=class

KERNEL[183758.400956] remove   /devices/pci0000:00/0000:00:1d.0/usb4/4-1/4-1.1/4-1.1:1.0/0003:04D8:00DE.001F/hidraw/hidraw0 (hidraw)
ACTION=remove
DEVNAME=/dev/hidraw0
DEVPATH=/devices/pci0000:00/0000:00:1d.0/usb4/4-1/4-1.1/4-1.1:1.0/0003:04D8:00DE.001F/hidraw/hidraw0
MAJOR=244
MINOR=0
SEQNUM=5993
SUBSYSTEM=hidraw

KERNEL[183758.401068] remove   /devices/pci0000:00/0000:00:1d.0/usb4/4-1/4-1.1/4-1.1:1.0/0003:04D8:00DE.001F (hid)
ACTION=remove
DEVPATH=/devices/pci0000:00/0000:00:1d.0/usb4/4-1/4-1.1/4-1.1:1.0/0003:04D8:00DE.001F
HID_ID=0003:000004D8:000000DE
HID_NAME=Microchip Technology Inc. MCP2210 USB-to-SPI Master
HID_PHYS=usb-0000:00:1d.0-1.1/input0
HID_UNIQ=0000267472
MODALIAS=hid:b0003g0001v000004D8p000000DE
SEQNUM=5994
SUBSYSTEM=hid

UDEV  [183758.403532] remove   /devices/pci0000:00/0000:00:1d.0/usb4/4-1/4-1.1/4-1.1:1.0/usbmisc/hiddev0 (usbmisc)
ACTION=remove
DEVNAME=/dev/usb/hiddev0
DEVPATH=/devices/pci0000:00/0000:00:1d.0/usb4/4-1/4-1.1/4-1.1:1.0/usbmisc/hiddev0
MAJOR=180
MINOR=0
SEQNUM=5991
SUBSYSTEM=usbmisc
USEC_INITIALIZED=183758400806

UDEV  [183758.404020] remove   /devices/pci0000:00/0000:00:1d.0/usb4/4-1/4-1.1/4-1.1:1.0/0003:04D8:00DE.001F/hidraw/hidraw0 (hidraw)
ACTION=remove
DEVNAME=/dev/hidraw0
DEVPATH=/devices/pci0000:00/0000:00:1d.0/usb4/4-1/4-1.1/4-1.1:1.0/0003:04D8:00DE.001F/hidraw/hidraw0
MAJOR=244
MINOR=0
SEQNUM=5993
SUBSYSTEM=hidraw
USEC_INITIALIZED=183758402106

UDEV  [183758.404380] remove   /devices/pci0000:00/0000:00:1d.0/usb4/4-1/4-1.1/4-1.1:1.0/0003:04D8:00DE.001F (hid)
ACTION=remove
DEVPATH=/devices/pci0000:00/0000:00:1d.0/usb4/4-1/4-1.1/4-1.1:1.0/0003:04D8:00DE.001F
HID_ID=0003:000004D8:000000DE
HID_NAME=Microchip Technology Inc. MCP2210 USB-to-SPI Master
HID_PHYS=usb-0000:00:1d.0-1.1/input0
HID_UNIQ=0000267472
MODALIAS=hid:b0003g0001v000004D8p000000DE
SEQNUM=5994
SUBSYSTEM=hid
USEC_INITIALIZED=183758402790

UDEV  [183758.405108] remove   /usbmisc (class)
ACTION=remove
DEVPATH=/usbmisc
SEQNUM=5992
SUBSYSTEM=class
USEC_INITIALIZED=183758401553

In the container, the ID fields are missing:

    monitor will print the received events for:
UDEV - the event which udev sends out after rule processing
KERNEL - the kernel uevent

KERNEL[183877.777776] add      /devices/pci0000:00/0000:00:1d.0/usb4/4-1/4-1.1 (usb)
ACTION=add
BUSNUM=004
DEVNAME=/dev/bus/usb/004/035
DEVNUM=035
DEVPATH=/devices/pci0000:00/0000:00:1d.0/usb4/4-1/4-1.1
DEVTYPE=usb_device
MAJOR=189
MINOR=418
PRODUCT=4d8/de/2
SEQNUM=5999
SUBSYSTEM=usb
TYPE=0/0/0

KERNEL[183877.778115] add      /devices/pci0000:00/0000:00:1d.0/usb4/4-1/4-1.1/4-1.1:1.0 (usb)
ACTION=add
DEVPATH=/devices/pci0000:00/0000:00:1d.0/usb4/4-1/4-1.1/4-1.1:1.0
DEVTYPE=usb_interface
INTERFACE=3/0/0
MODALIAS=usb:v04D8p00DEd0002dc00dsc00dp00ic03isc00ip00in00
PRODUCT=4d8/de/2
SEQNUM=6000
SUBSYSTEM=usb
TYPE=0/0/0

KERNEL[183877.779627] add      /devices/pci0000:00/0000:00:1d.0/usb4/4-1/4-1.1/4-1.1:1.0/0003:04D8:00DE.0020 (hid)
ACTION=add
DEVPATH=/devices/pci0000:00/0000:00:1d.0/usb4/4-1/4-1.1/4-1.1:1.0/0003:04D8:00DE.0020
HID_ID=0003:000004D8:000000DE
HID_NAME=Microchip Technology Inc. MCP2210 USB-to-SPI Master
HID_PHYS=usb-0000:00:1d.0-1.1/input0
HID_UNIQ=0000267472
MODALIAS=hid:b0003g0001v000004D8p000000DE
SEQNUM=6001
SUBSYSTEM=hid

KERNEL[183877.780178] add      /class/usbmisc (class)
ACTION=add
DEVPATH=/class/usbmisc
SEQNUM=6002
SUBSYSTEM=class

KERNEL[183877.780314] add      /devices/pci0000:00/0000:00:1d.0/usb4/4-1/4-1.1/4-1.1:1.0/usbmisc/hiddev0 (usbmisc)
ACTION=add
DEVNAME=/dev/usb/hiddev0
DEVPATH=/devices/pci0000:00/0000:00:1d.0/usb4/4-1/4-1.1/4-1.1:1.0/usbmisc/hiddev0
MAJOR=180
MINOR=0
SEQNUM=6003
SUBSYSTEM=usbmisc

KERNEL[183877.780413] add      /devices/pci0000:00/0000:00:1d.0/usb4/4-1/4-1.1/4-1.1:1.0/0003:04D8:00DE.0020/hidraw/hidraw0 (hidraw)
ACTION=add
DEVNAME=/dev/hidraw0
DEVPATH=/devices/pci0000:00/0000:00:1d.0/usb4/4-1/4-1.1/4-1.1:1.0/0003:04D8:00DE.0020/hidraw/hidraw0
MAJOR=244
MINOR=0
SEQNUM=6004
SUBSYSTEM=hidraw

KERNEL[183878.337362] remove   /devices/pci0000:00/0000:00:1d.0/usb4/4-1/4-1.1/4-1.1:1.0/usbmisc/hiddev0 (usbmisc)
ACTION=remove
DEVNAME=/dev/usb/hiddev0
DEVPATH=/devices/pci0000:00/0000:00:1d.0/usb4/4-1/4-1.1/4-1.1:1.0/usbmisc/hiddev0
MAJOR=180
MINOR=0
SEQNUM=6005
SUBSYSTEM=usbmisc

KERNEL[183878.337467] remove   /usbmisc (class)
ACTION=remove
DEVPATH=/usbmisc
SEQNUM=6006
SUBSYSTEM=class

KERNEL[183878.337521] remove   /devices/pci0000:00/0000:00:1d.0/usb4/4-1/4-1.1/4-1.1:1.0/0003:04D8:00DE.0020/hidraw/hidraw0 (hidraw)
ACTION=remove
DEVNAME=/dev/hidraw0
DEVPATH=/devices/pci0000:00/0000:00:1d.0/usb4/4-1/4-1.1/4-1.1:1.0/0003:04D8:00DE.0020/hidraw/hidraw0
MAJOR=244
MINOR=0
SEQNUM=6007
SUBSYSTEM=hidraw

KERNEL[183878.337584] remove   /devices/pci0000:00/0000:00:1d.0/usb4/4-1/4-1.1/4-1.1:1.0/0003:04D8:00DE.0020 (hid)
ACTION=remove
DEVPATH=/devices/pci0000:00/0000:00:1d.0/usb4/4-1/4-1.1/4-1.1:1.0/0003:04D8:00DE.0020
HID_ID=0003:000004D8:000000DE
HID_NAME=Microchip Technology Inc. MCP2210 USB-to-SPI Master
HID_PHYS=usb-0000:00:1d.0-1.1/input0
HID_UNIQ=0000267472
MODALIAS=hid:b0003g0001v000004D8p000000DE
SEQNUM=6008
SUBSYSTEM=hid

If you only care about getting information from the udev database, then you can mount the host's udev database into the docker container, e.g.,

-v /run/udev:/run/udev:ro

By doing so, you won't need to run a udev daemon inside the docker container, but still get all the ID_ attributes when doing udevadm info. This worked for me for a Debian docker container running on a Debian host.

I also suggest mounting /dev as well so your docker container will know about any changes to the device files.

According to this this blog, udev just does not play well with docker when running in containers. I thus decided that this problem needs a workaround. With udev I only get the path of the device in /sys, and get the needed information directly from that path, e. g.:

container# cat "/sys$(udevadm info -q path /dev/bus/usb/002/009)/idVendor"

I am going to mark this as solved, however it's just a workaround, not the real answer to the question.

EDIT

According to this post, these flags are needed to get udevadm display the udev events (along with attributes): --net=host -v /dev:/dev

This only works for udevadm monitor, not for udevadm info.

Add the following udev rule to populate the ID_ properties:

SUBSYSTEM=="usb", ENV{DEVTYPE}=="usb_device", IMPORT{builtin}="usb_id", IMPORT{builtin}="hwdb --subsystem=usb"

来源：https://stackoverflow.com/questions/41753218/udevadm-does-not-show-all-attributes-inside-a-docker-container

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