Docker installation with KNX Interface starting problems

Installation
1

Hi,

i am a new user to HA and wanted to run it inside a docker container on a Ubuntu server. I have a KNX Interface from Enertex in order to communicate with the bus.
The Docker container is started with:

sudo docker run -d --name="home-assistant" \
    -v /DATA_VOLUME/HA:/config \
    -v /etc/localtime:/etc/localtime:ro \
    --net=host \
    --dns=192.168.178.51 \
    --publish 3671:3671 \
    --publish 8123:8123 \
    homeassistant/home-assistant

extract of the configuration file:

knx:
  config_file: '/config/knx.yaml'
sensor:
  # Weather prediction
  - platform: yr
  - platform: knx
    name: Kitchen.Temperature
    address: '4/1/11'
    type: 'temperature'
switch:
  - platform: knx
    name: Kitchen.Theke
    address: '2/1/12'

extract of the knx.yaml:

knx:
  tunneling:
    host: '192.168.178.XXX'
    port: 3671
    local_ip: '192.168.178.YYY'

The HA landing page tells me:

The following components and platforms could not be set up:
* [knx](https://home-assistant.io/components/knx/)
* sensor.knx
* switch.knx
Please check your config.

but the config check tells me everything is fine.

What can i do, do make knx work with this setup?

Thank in advance

Norbert