Create docker container without ttyusb0

[reklame33]

I am trying to create a docker container from twcmanager but intend to use it with socket rs485 communication. In the docker-compose file I tried using /dev/null:/dev/null but after downloading container I get error again:

Any solution how to create container without having a /dev/ttyUSB0 device?

home-twcmanager-1 | Traceback (most recent call last): home-twcmanager-1 | File "/usr/lib/python3.7/runpy.py", line 193, in _run_module_as_main home-twcmanager-1 | "main", mod_spec) home-twcmanager-1 | File "/usr/lib/python3.7/runpy.py", line 85, in _run_code home-twcmanager-1 | exec(code, run_globals) home-twcmanager-1 | File "/usr/src/TWCManager/TWCManager.py", line 34, in home-twcmanager-1 | import TWCManager.TWCManager home-twcmanager-1 | File "/usr/src/TWCManager/lib/TWCManager/TWCManager.py", line 616, in home-twcmanager-1 | modinstance = modclassref(master) home-twcmanager-1 | File "/usr/src/TWCManager/lib/TWCManager/Interface/RS485.py", line 52, in init home-twcmanager-1 | self.ser = self.serial.serial_for_url(self.port, self.baud, timeout=0) home-twcmanager-1 | File "/usr/local/lib/python3.7/dist-packages/serial/init.py", line 90, in serial_for_url home-twcmanager-1 | instance.open() home-twcmanager-1 | File "/usr/local/lib/python3.7/dist-packages/serial/serialposix.py", line 325, in open home-twcmanager-1 | raise SerialException(msg.errno, "could not open port {}: {}".format(self._port, msg)) home-twcmanager-1 | serial.serialutil.SerialException: [Errno 2] could not open port /dev/ttyUSB0: [Errno 2] No such file or directory: '/dev/ttyUSB0' home-twcmanager-1 exited with code 1

[MikeBishop]

You'll need to tell the serial module not to load, and instead activate a different interface module. That's further down in the config file, IIRC. If you're not able to find it, I can look more closely at which thing needs to be disabled/enabled.

[tjikkun]

You can configure tcp as a port as well, see https://github.com/ngardiner/TWCManager/blob/main/etc/twcmanager/config.json#L225

[MikeBishop]

Right, you'd want to set RS485 to "enabled": false and TCP to "enabled": true

[reklame33]

No matter what I specified in docker-compose.yml I was not able to start container. Found some info how to edit files inside a stopped container. Used this command:

docker run --volumes-from 76c425085e38 -it busybox

Then edited /etc/twcmanager/config.json using vi Replaced /dev/ttyUSB0 with this: "port": "socket://192.168.10.97:8000"

Exited busybox and edited the docker-compose.yml to have /dev/null:/dev/null as device.

Now I was able to start container successfully!