ansible/pis/03-install-pulseaudio-bluetooth.yml

# Run with
# ansible-playbook -i raspberrypi, 03-install-pulseaudio-bluetooth.yml
# where "raspberrypi" is the hostname of the pi
---

- hosts: raspberrypi
  gather_facts: false
  remote_user: root
  tasks:
    # --- Initial Checks ---
    - fail: msg="Make sure to set the MAC address of the BT device to variable 'bluetooth_mac_address_audio'"
      when: bluetooth_mac_address_audio is undefined
    - name: Detect Raspi Model
      slurp:
        src: /sys/firmware/devicetree/base/model
      register: raspberry_model
    - name: Decode Raspi Model
      set_fact:
        raspi_model: "{{ raspberry_model.content | b64decode }}"
    - name: Check if its a Raspberry 3 (where I've tested this)
      fail:
        msg: I've only tested this on Raspberry 3 Model Pi, this is something else
      when: 'not raspi_model.startswith("Raspberry Pi 3 Model B Plus")'
    #- name: Determine MAC Address of first Bluetooth device
    #  command: 'hciconfig hci0'
    #  register: hci_output
    #- name: Extract MAC address
    #  set_fact:
    #    hci0_addr: "{{ hci_output.stdout | regex_search('BD Address: ([^\\s]+)', '\\1') | first }}"
    # --- The actual work ---
    - name: Install pulseaudio packages
      apt:
        name:
          - pulseaudio
          - pulseaudio-utils
          - pulseaudio-module-bluetooth
          - alsa-utils
          - bluez-tools
        cache_valid_time: 7200
        state: present
        install_recommends: no
    - name: Add root to pulse-access group
      user:
        name: root
        groups:
          - pulse-access
          - pulse
          - audio
        append: yes
    - name: Copy DBus permission file
      copy: src=dbus-pulseaudio-bluetooth.conf dest=/etc/dbus-1/system.d/pulseaudio-bluetooth.conf
    - name: Copy Pulseaudio system-mode config file
      copy: src=pulseaudio.cfg dest=/etc/pulse/system.pa
    - name: Copy bluetoothd main.conf
      copy: src=bluetooth_main.conf dest=/etc/bluetooth/main.conf
    - name: Copy bluetoothd audio.conf
      copy: src=bluetooth_audio.conf dest=/etc/bluetooth/audio.conf
    - name: Copy bt-agent service file
      template: src=bt-agent.service dest=/lib/systemd/system/bt-agent.service
    - name: Copy pulseaudio service file
      copy: src=pulseaudio.service dest=/lib/systemd/system/
    - name: Copy Python script for discoverable and name setting
      copy:
        src: start_bt_discoverable.py
        dest: /bin/start_bt_discoverable
        mode: u=rwx,g=rx
    #- name: Stop Bluetooth
    #  service:
    #    name: bluetooth
    #    state: stopped
    #- name: Set bluetooth device name
    #  ini_file:
    #    path: "/var/lib/bluetooth/{{hci0_addr}}/settings"
    #    section: General
    #    option: Alias
    #    value: "{{bluetooth_name}}"
    #- name: Mark as discoverable
    #  ini_file:
    #    path: "/var/lib/bluetooth/{{hci0_addr}}/settings"
    #    section: General
    #    option: Discoverable
    #    value: true
    - name: Enable and restart bluetooth
      service:
        name: bluetooth
        enabled: yes
        state: restarted
    - name: Enable and restart pulseaudio
      service:
        name: pulseaudio
        enabled: yes
        state: restarted
    - name: Enable and restart bt-agent
      service:
        name: bt-agent
        enabled: yes
        state: restarted
        daemon_reload: yes