How to debug a wyoming satellite?

I am using the wyoming satellite Dockerfile to run a docker container for the satellite (as I do with home-assistant, piper and whisper; all on the same machine).

However, while all services nicely connect and integrate into Wyoming in my Homeassistant, the satellite fails to do so, despite being configured in the same way as the other containers.

The satellite does not connect automatically to HA (piper and whisper did neither), and adding it manually via the Wyoming protocol integration leads to “No services found at endpoint”. Notably, when I provide a different Host address or Port, it searches for a long while, so it seems that the network connection is fine to some degree.

Below the debug output of the satellite docker container.

[I] moritz@moxps ~/wyoming-satellite (master)> docker logs  wyoming-satellite
DEBUG:root:Namespace(mic_uri=None, mic_command='arecord -D plughw:1,0 -r 16000 -c 1 -f S16_LE -t raw', mic_command_rate=16000, mic_command_width=2, mic_command_channels=1, mic_command_samples_per_chunk=1024, mic_volume_multiplier=1.0, mic_noise_suppression=0, mic_auto_gain=0, mic_seconds_to_mute_after_awake_wav=0.5, mic_no_mute_during_awake_wav=False, mic_channel_index=None, snd_uri=None, snd_command='aplay -D plughw:0,0 -r 22050 -c 1 -f S16_LE -t raw', snd_command_rate=22050, snd_command_width=2, snd_command_channels=1, snd_volume_multiplier=1.0, wake_uri=None, wake_word_name=[], wake_command=None, wake_command_rate=16000, wake_command_width=2, wake_command_channels=1, wake_refractory_seconds=5.0, vad=False, vad_threshold=0.5, vad_trigger_level=1, vad_buffer_seconds=2, vad_wake_word_timeout=5.0, event_uri=None, startup_command=None, detect_command=None, detection_command=None, transcript_command=None, stt_start_command=None, stt_stop_command=None, synthesize_command=None, tts_start_command=None, tts_stop_command=None, tts_played_command=None, streaming_start_command=None, streaming_stop_command=None, error_command=None, connected_command=None, disconnected_command=None, awake_wav=None, done_wav=None, uri='tcp://', name='living_room', area=None, no_zeroconf=False, zeroconf_name=None, zeroconf_host=None, debug_recording_dir=None, debug=True, log_format='%(levelname)s:%(name)s:%(message)s')
DEBUG:root:Detected IP:
DEBUG:root:Zeroconf discovery enabled (name=0242ac140003, host=None)
DEBUG:root:Connecting to mic service: ['arecord', '-D', 'plughw:1,0', '-r', '16000', '-c', '1', '-f', 'S16_LE', '-t', 'raw']
DEBUG:root:Connecting to snd service: ['aplay', '-D', 'plughw:0,0', '-r', '22050', '-c', '1', '-f', 'S16_LE', '-t', 'raw']
INFO:root:Connected to services
DEBUG:root:Connected to mic service
Recording raw data 'stdin' : Signed 16 bit Little Endian, Rate 16000 Hz, Mono

Here the process spawned by the docker:
root 6623 0.1 0.0 105144 25256 ? Sl 18:25 0:01 /app/.venv/bin/python3 -m wyoming_satellite --uri tcp:// --name living_room --mic-command arecord -D plughw:1,0 -r 16000 -c 1 -f S16_LE -t raw --snd-command aplay -D plughw:0,0 -r 22050 -c 1 -f S16_LE -t raw --debug

It is really challenging to pinpoint what the issue here, given that the network connect seems to work. Is there a convenient command-line way to check the functionality of the satellite service in a standalone manner?

Cross-posting from Network(?) issue when connecting through docker · Issue #129 · rhasspy/wyoming-satellite · GitHub