life-church: add thinkcenter-audio (unified PipeWire/JACK/ALSA/Pulse + qpwgraph)
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life-church/playbooks/thinkcenter-audio.yml
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life-church/playbooks/thinkcenter-audio.yml
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# ============================================================================
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# life-church/playbooks/thinkcenter-audio.yml
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# Unified audio stack on thinkcenter: PipeWire as the ONE server, with its
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# PulseAudio + JACK + ALSA compatibility layers so nothing competes.
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# CHANGES the system. thinkcenter ONLY. Idempotent. Native .deb packages only
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# (no flatpak for audio — matches the homelab audio rule).
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#
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# Design (why nothing competes):
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# - PipeWire = the single audio server/graph.
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# - WirePlumber = session/policy manager.
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# - pipewire-pulse = REPLACES the PulseAudio daemon (PA apps -> PipeWire).
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# - pipewire-jack = REPLACES the JACK daemon (JACK apps -> PipeWire).
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# - pipewire-alsa = routes ALSA apps through PipeWire.
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# The standalone `pulseaudio` and `jackd2` daemons are intentionally NOT run;
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# installing them as separate servers is the thing that causes contention.
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# qpwgraph = the patchbay/graph GUI for wiring it all.
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#
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# UNDO: see life-church/playbooks/undo/thinkcenter-audio-undo.sh notes in header.
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# ============================================================================
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# --- Play 1 (localhost): fetch thinkcenter sudo pass from Infisical ----------
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- name: "thinkcenter audio — resolve become password from Infisical"
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hosts: localhost
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gather_facts: false
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tasks:
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- name: "[resolve] Infisical creds from env"
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ansible.builtin.set_fact:
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infisical_client_id: "{{ lookup('env','INFISICAL_CLIENT_ID') }}"
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infisical_client_secret: "{{ lookup('env','INFISICAL_CLIENT_SECRET') }}"
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infisical_project_id: "{{ lookup('env','INFISICAL_PROJECT_ID') }}"
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infisical_url: "{{ lookup('env','INFISICAL_API_URL') | default('http://192.168.122.41:8080', true) }}"
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infisical_env_slug: "{{ lookup('env','INFISICAL_ENV_SLUG') | default('prod', true) }}"
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- name: "[resolve] Assert Infisical creds present"
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ansible.builtin.assert:
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that:
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- infisical_client_id | length > 0
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- infisical_client_secret | length > 0
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- infisical_project_id | length > 0
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fail_msg: "Infisical creds missing from Semaphore environment 'infisical-dev'."
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- name: "[infisical] Log in"
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infisical.vault.login:
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url: "{{ infisical_url }}"
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auth_method: universal_auth
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universal_auth_client_id: "{{ infisical_client_id }}"
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universal_auth_client_secret: "{{ infisical_client_secret }}"
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register: infisical_login
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no_log: true
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- name: "[infisical] Read /lc-hosts"
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infisical.vault.read_secrets:
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login_data: "{{ infisical_login.login_data }}"
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project_id: "{{ infisical_project_id }}"
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env_slug: "{{ infisical_env_slug }}"
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path: "/lc-hosts"
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as_dict: true
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register: lc_secrets
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no_log: true
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- name: "[set] Stash thinkcenter sudo pass + login user"
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ansible.builtin.set_fact:
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thinkcenter_become_pass: "{{ lc_secrets.secrets['THINKCENTER_SUDO_PASS'] }}"
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thinkcenter_login_user: "{{ lc_secrets.secrets['THINKCENTER_USER'] }}"
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no_log: true
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# --- Play 2: install + configure the unified audio stack (thinkcenter only) --
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- name: "Unified PipeWire audio stack on thinkcenter"
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hosts: thinkcenter
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gather_facts: true
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become: true
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vars:
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ansible_become_pass: "{{ hostvars['localhost'].thinkcenter_become_pass }}"
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audio_user: "{{ hostvars['localhost'].thinkcenter_login_user }}"
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# Everything PipeWire-native. NOTE: we do NOT install jackd2 or pulseaudio
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# as daemons — pipewire-jack / pipewire-pulse provide those APIs.
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audio_packages:
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- pipewire # core server
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- pipewire-audio # audio meta
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- pipewire-bin # pw-* CLI tools
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- pipewire-alsa # ALSA apps -> PipeWire
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- pipewire-pulse # PulseAudio API -> PipeWire (replaces PA daemon)
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- pipewire-jack # JACK API -> PipeWire (replaces JACK daemon)
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- libspa-0.2-bluetooth # bluetooth audio
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- wireplumber # session manager
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- qpwgraph # PipeWire patchbay/graph GUI
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- pavucontrol # PulseAudio volume control (works via pw-pulse)
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- alsa-utils # alsamixer, aplay, etc.
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- rtkit # realtime scheduling broker (low-latency)
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tasks:
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- name: "[safety] Confirm we are on thinkcenter"
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ansible.builtin.assert:
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that: inventory_hostname == 'thinkcenter'
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fail_msg: "Refusing to run — this play is scoped to thinkcenter only."
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- name: "[facts] Resolve audio_user UID (for XDG_RUNTIME_DIR)"
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ansible.builtin.getent:
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database: passwd
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key: "{{ audio_user }}"
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- name: "[facts] Set audio_uid"
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ansible.builtin.set_fact:
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audio_uid: "{{ ansible_facts.getent_passwd[audio_user][1] }}"
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- name: "[apt] Update cache"
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ansible.builtin.apt:
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update_cache: true
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cache_valid_time: 3600
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- name: "[apt] Install unified PipeWire audio stack + qpwgraph"
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ansible.builtin.apt:
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name: "{{ audio_packages }}"
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state: present
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register: pkg_install
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- name: "[conflict] Detect a STANDALONE pulseaudio daemon package (not the pw-pulse shim)"
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ansible.builtin.shell: "dpkg -l pulseaudio 2>/dev/null | awk '/^ii/{print $2}'"
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register: standalone_pa
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changed_when: false
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failed_when: false
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- name: "[conflict] Detect a STANDALONE jackd2 daemon package"
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ansible.builtin.shell: "dpkg -l jackd2 2>/dev/null | awk '/^ii/{print $2}'"
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register: standalone_jack
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changed_when: false
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failed_when: false
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# Only mask the competing daemons if their standalone packages are present.
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# pipewire-pulse/pipewire-jack are NOT affected by these (different units).
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- name: "[conflict] Mask standalone PulseAudio user daemon if present (prevents competing server)"
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ansible.builtin.command: "systemctl --global mask pulseaudio.service pulseaudio.socket"
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when: standalone_pa.stdout | length > 0
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register: mask_pa
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changed_when: mask_pa.rc == 0
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- name: "[services] Enable PipeWire user services for {{ audio_user }} (lingering + enable)"
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ansible.builtin.command: "loginctl enable-linger {{ audio_user }}"
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register: linger
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changed_when: "'already' not in (linger.stderr | default(''))"
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failed_when: false
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- name: "[services] Enable pipewire / pipewire-pulse / wireplumber for the user"
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become: true
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become_user: "{{ audio_user }}"
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ansible.builtin.systemd_service:
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name: "{{ item }}"
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scope: user
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enabled: true
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loop:
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- pipewire.socket
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- pipewire-pulse.socket
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- wireplumber.service
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environment:
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XDG_RUNTIME_DIR: "/run/user/{{ audio_uid }}"
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failed_when: false
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register: user_services
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- name: "[verify] Which server does pactl report?"
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become: true
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become_user: "{{ audio_user }}"
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ansible.builtin.command: pactl info
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environment:
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XDG_RUNTIME_DIR: "/run/user/{{ audio_uid }}"
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register: pactl_info
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changed_when: false
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failed_when: false
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- name: "[verify] Is the PipeWire-JACK bridge available?"
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ansible.builtin.stat:
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path: /usr/lib/x86_64-linux-gnu/pipewire-0.3/jack/libjack.so.0
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register: pw_jack_lib
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- name: "[verify] qpwgraph installed?"
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ansible.builtin.command: which qpwgraph
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register: qpwgraph_which
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changed_when: false
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failed_when: false
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- name: "[verify] Assert PipeWire is the audio server (no competing daemon)"
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ansible.builtin.assert:
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that:
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- "'PipeWire' in pactl_info.stdout"
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- standalone_jack.stdout | length == 0
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fail_msg: >-
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Audio server is not unified under PipeWire, or a standalone jackd2 daemon is
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installed and would compete. pactl said: {{ pactl_info.stdout_lines | default([]) }}
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success_msg: "Audio unified under PipeWire — PulseAudio + JACK + ALSA all via PipeWire."
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- name: "[report] Audio stack summary"
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ansible.builtin.debug:
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msg:
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- "===== thinkcenter unified audio ====="
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- "Packages changed this run : {{ pkg_install.changed }}"
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- "Server (pactl) : {{ (pactl_info.stdout_lines | select('match','Server Name.*') | list | first) | default('n/a') }}"
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- "PipeWire-JACK bridge : {{ 'present' if pw_jack_lib.stat.exists else 'MISSING' }}"
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- "qpwgraph : {{ 'installed' if qpwgraph_which.rc == 0 else 'MISSING' }}"
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- "Standalone pulseaudio pkg : {{ 'present (masked)' if standalone_pa.stdout | length > 0 else 'not installed (good)' }}"
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- "Standalone jackd2 pkg : {{ 'PRESENT (conflict!)' if standalone_jack.stdout | length > 0 else 'not installed (good)' }}"
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- "NOTE: user must log out/in (or reboot) for JACK apps to pick up the PipeWire backend."
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