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homeassistant @lemmy.world Sunnydmess @lemmy.world

/dev/ttyUSB0 permission issues in HA container and Skyconnect

This integration worked before, but something changed. I'm guessing it's a user/group permission issue based on the logs. I would appreciate some feedback on this process while I troubleshoot.

Setup:

I created this script to be able to recreate my HA service with the latest container image:

#!/bin/bash

# Variables and env
PODMAN_NAME=home-assistant
loginctl enable-linger $USER
export XDG_RUNTIME_DIR=/run/user/$(id -u $USER)

# Cleanup
systemctl --user stop container-${PODMAN_NAME}.service
systemctl --user disable container-${PODMAN_NAME}.service
podman rm -f ${PODMAN_NAME}

# Pull images
podman pull --arch=arm ghcr.io/home-assistant/home-assistant:stable


# Create Home Assistant image
podman create \
--arch arm \
--env TZ=America/New_York \
--volume=/opt/home-assistant/config:/config \
--volume=/opt/home-assistant/config/www/media:/media \
--device /dev/ttyUSB0 \
--network=host \
--restart=always \
--name ${PODMAN_NAME} \
ghcr.io/home-assistant/home-assistant:stable
#--privileged \
#--annotation io.crun.keep_original_groups=1 \

# Generate user service with podman generate systemd
podman generate systemd --new --files --name ${PODMAN_NAME} --restart-policy=always

# Setup systemctl files correctly
mkdir -p ~/.config/sysetmd/user
mv container-${PODMAN_NAME}.service ~/.config/systemd/user/.

# Enable the service
systemctl --user enable container-${PODMAN_NAME}.service

# Start the service
systemctl --user start container-${PODMAN_NAME}.service

Recently my Zigbee integration stopped working. I'm certain it has to do with groups/user permissions for the container and the mounted usb device. here are the logs.



2023-10-04 01:19:38.443 ERROR (MainThread) [zigpy.application] Couldn't start application
Traceback (most recent call last):
  File "/usr/local/lib/python3.11/site-packages/serial/serialposix.py", line 322, in open
    self.fd = os.open(self.portstr, os.O_RDWR | os.O_NOCTTY | os.O_NONBLOCK)
              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
PermissionError: [Errno 13] Permission denied: '/dev/ttyUSB0'

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/usr/local/lib/python3.11/site-packages/zigpy/application.py", line 197, in startup
    await self.connect()
  File "/usr/local/lib/python3.11/site-packages/bellows/zigbee/application.py", line 138, in connect
    await ezsp.connect(use_thread=self.config[CONF_USE_THREAD])
  File "/usr/local/lib/python3.11/site-packages/bellows/ezsp/__init__.py", line 179, in connect
    self._gw = await bellows.uart.connect(self._config, self, use_thread=use_thread)
               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/local/lib/python3.11/site-packages/bellows/uart.py", line 406, in connect
    protocol, connection_done = await thread.run_coroutine_threadsafe(
                                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/local/lib/python3.11/site-packages/bellows/uart.py", line 385, in _connect
    transport, protocol = await zigpy.serial.create_serial_connection(
                          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/local/lib/python3.11/site-packages/zigpy/serial.py", line 42, in create_serial_connection    transport, protocol = await pyserial_asyncio.create_serial_connection(
                          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/local/lib/python3.11/site-packages/serial_asyncio/__init__.py", line 448, in create_serial_connection
    serial_instance = serial.serial_for_url(*args, **kwargs)
                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/local/lib/python3.11/site-packages/serial/__init__.py", line 90, in serial_for_url
    instance.open()
  File "/usr/local/lib/python3.11/site-packages/serial/serialposix.py", line 325, in open
    raise SerialException(msg.errno, "could not open port {}: {}".format(self._port, msg))
serial.serialutil.SerialException: [Errno 13] could not open port /dev/ttyUSB0: [Errno 13] Permission denied: '/dev/ttyUSB0'


2023-10-04 01:19:38.571 WARNING (MainThread) [homeassistant.components.zha.core.gateway] Couldn't start EZSP = Silicon Labs EmberZNet protocol: Elelabs, HUSBZB-1, Telegesis coordinator (attempt 1 of 3)
Traceback (most recent call last):
  File "/usr/local/lib/python3.11/site-packages/serial/serialposix.py", line 322, in open
    self.fd = os.open(self.portstr, os.O_RDWR | os.O_NOCTTY | os.O_NONBLOCK)
              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
PermissionError: [Errno 13] Permission denied: '/dev/ttyUSB0'

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/usr/src/homeassistant/homeassistant/components/zha/core/gateway.py", line 209, in async_initialize
    await self.application_controller.startup(auto_form=True)
  File "/usr/local/lib/python3.11/site-packages/zigpy/application.py", line 197, in startup
    await self.connect()
  File "/usr/local/lib/python3.11/site-packages/bellows/zigbee/application.py", line 138, in connect
    await ezsp.connect(use_thread=self.config[CONF_USE_THREAD])
  File "/usr/local/lib/python3.11/site-packages/bellows/ezsp/__init__.py", line 179, in connect
    self._gw = await bellows.uart.connect(self._config, self, use_thread=use_thread)
               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/local/lib/python3.11/site-packages/bellows/uart.py", line 406, in connect
    protocol, connection_done = await thread.run_coroutine_threadsafe(
                                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/local/lib/python3.11/site-packages/bellows/uart.py", line 385, in _connect
    transport, protocol = await zigpy.serial.create_serial_connection(
                          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/local/lib/python3.11/site-packages/zigpy/serial.py", line 42, in create_serial_connection    transport, protocol = await pyserial_asyncio.create_serial_connection(
                          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/local/lib/python3.11/site-packages/serial_asyncio/__init__.py", line 448, in create_serial_connection
    serial_instance = serial.serial_for_url(*args, **kwargs)
                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/local/lib/python3.11/site-packages/serial/__init__.py", line 90, in serial_for_url
    instance.open()
  File "/usr/local/lib/python3.11/site-packages/serial/serialposix.py", line 325, in open
    raise SerialException(msg.errno, "could not open port {}: {}".format(self._port, msg))
serial.serialutil.SerialException: [Errno 13] could not open port /dev/ttyUSB0: [Errno 13] Permission denied: '/dev/ttyUSB0'

I've toggled the --privileged parameter because that's worked for others, but i don't think it behaves the same in podman as it does in docker. I've also added the home-assistant user to the dialout group based on another post but still the zigbee integration fails to load.

Any hints on where to look next?

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