Dockerfile

FROM balenalib/raspberry-pi:buster

# we should probably base this on the balena python image
# i had issues with it getting it to work
# so that's why we're just doing it manually
RUN apt-get update && apt-get install -y \
	python3 python3-pip python3-dev python3-setuptools build-essential git python3-pyaudio python3-numpy python3-scipy


COPY build/asound.conf /etc/asound.conf

RUN sed -i "s|defaults.ctl.card 0|defaults.ctl.card 1|g" /usr/share/alsa/alsa.conf
RUN sed -i "s|defaults.pcm.card 0|defaults.pcm.card 1|g" /usr/share/alsa/alsa.conf

# copy requirements and install
COPY requirements.txt /code/requirements.txt
WORKDIR /code
RUN pip3 install -r requirements.txt

# copy scripts
COPY server /code/server
COPY main.py /code/main.py

ENV N_PIXELS="" \
	EFFECT="" \
	N_FFT_BINS="" \
	FPS="" \
	MIN_VOLUME_THRESHOLD="" \
	DISPLAY_FPS="" \
	LED_PIN="" \
	LED_FREQ_HZ="" \
	LED_DMA="" \
	BRIGHTNESS="" \
	SELF_BRIGHTNESS="" \
	LED_INVERT="" \
	SOFTWARE_GAMMA_CORRECTION="" \
	MIC_RATE="" \
	MIN_FREQUENCY="" \
	MAX_FREQUENCY="" \
	N_ROLLING_HISTORY="" \
	SERVER_HOST="" \
	SERVER_PORT="" 


CMD python3 main.py \
	--n_pixels "${N_PIXELS}" \
	--effect "${EFFECT}" \
	--n_fft_bins "${N_FFT_BINS}" \
	--fps "${FPS}" \
	--min_volume_threshold "${MIN_VOLUME_THRESHOLD}" \
	--display_fps "${DISPLAY_FPS}" \
	--led_pin "${LED_PIN}" \
	--led_freq_hz "${LED_FREQ_HZ}" \
	--led_dma "${LED_DMA}" \
	--brightness "${BRIGHTNESS}" \
	--self_brightness "${SELF_BRIGHTNESS}" \
	--led_invert "${LED_INVERT}" \
	--software_gamma_correction "${SOFTWARE_GAMMA_CORRECTION}" \
	--mic_rate "${MIC_RATE}" \
	--min_frequency "${MIN_FREQUENCY}" \
	--max_frequency "${MAX_FREQUENCY}" \
	--n_rolling_history "${N_ROLLING_HISTORY}" \
	--host "${SERVER_HOST}" \
	--port "${SERVER_PORT}"