Bluetooth Speaker with Pipewire

Forked from: https://github.com/codingdave/bluetooth_speaker and modified to allow any bluetooth device to connect.

Turn your bluetooth device into a receiver. Example: Connect your mobile (source, no audio jack) to your HiFi (audio jack, no bluetooth) using a raspberryPi inbetween, as it has both: bluetooth and an audio jack.

This project uses https://github.com/fdanis-oss/pw_wp_bluetooth_rpi_speaker and turns it into a docker image.

How does it work

When the container is run it binds /var/run/dbus/system_bus_socket and thus allows the container to act upon it. The script speaker-agent.py is run (with optional --single-connection parameter) and starts to do its service in isolation. When you do not need this service any longer just stop the container.

Dependencies

This container requires the host to run pipewire and wireplumber.

Persistently running

Pipewire and wireplumber run in userspace and are stopped when you logout. So the user needs to stay logged in and it is not just suficient to keep a process open (screen, tmux, byobu, ...). If you want to run this service headless persistently you could enable auto login.

Manually

sudo systemctl edit getty@tty1.service

and insert (replacing $USERNAME with your own):

[Service]
ExecStart=
ExecStart=-/sbin/agetty --noissue --autologin $USERNAME %I $TERM
Type=idle

When running RaspbianOS

Start raspi-config utility and navigate:

• 1 System Options
  • S5 Boot / Auto Login
    • B2 Console Autologin

docker compose

Create a websync folder with empty wsdata.json file if you want to store a copy of your data.

services:
  bluetooth_speaker:
    image: gibbz/bluetooth-speaker:latest
    container_name: "bluetooth-speaker"
    hostname: "bluetooth_speaker"
    command: "--single-connection" # optional
    volumes:
      - "/var/run/dbus/system_bus_socket:/var/run/dbus/system_bus_socket"
    restart: unless-stopped

dockerfile build notes

To build from Dockerfile

docker build -t gibbz/bluetooth-speaker .

Open an image for browsing

docker run -i -t gibbz/bluetooth-speaker /bin/sh

Connect to a container

docker container exec -it debug /bin/sh

Tag for dockerhub

This will be tagged when the above build is done also. docker tag bluetooth-speaker:latest gibbz/bluetooth-speaker:latest

Push to dockerhub

docker push gibbz/bluetooth-speaker:latest