jackaudio server

defaults/main.yaml

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+---
+jackaudio_default_server: default
+jackaudio_driver: dummy
+jackaudio_device: ''
+jackaudio_realtime: true
+jackaudio_additional_options: ''
+jackaudio_driver_settings: |
+  -r{{jackaudio_sample_rate}}
+jackaudio_sample_rate: 48000

handlers/main.yaml

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+---
+
+- name: systemd daemon-reload
+  systemd:
+    daemon_reload: yes
+
+- name: restart jackaudio
+  systemd:
+    name: jack.service
+    state: restarted

tasks/main.yaml

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+---
+
+- name: jackaudio group
+  user:
+    name: jack
+    system: true
+
+- name: jackaudio user
+  user:
+    name: jack
+    group: jack
+    groups:
+      - audio
+    system: true
+
+- name: jackaudio systemd service unit
+  template:
+    src: jack.service.j2
+    dest: /etc/systemd/system/
+  notify:
+    - systemd daemon-reload
+    - restart jackaudio
+
+- name: jackaudio config
+  template:
+    src: jack.conf.j2
+    dest: /etc/jack.conf
+  notify: restart jackaudio
+
+- name: make sure jackaudio is enabled and started
+  systemd:
+    name: jack.service
+    state: started
+    enabled: true

templates/asound.conf.j2

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+{{ansible_managed|comment}}
+
+pcm.rawjack {
+    type jack
+    playback_ports {
+        0 system:playback_1
+    }
+}
+
+pcm.jack {
+    type plug
+    slave { pcm "rawjack" }
+    hint {
+        description "JACK Audio Connection Kit"
+    }
+}

templates/jack.conf.j2

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+{{ansible_managed|comment}}
+
+JACK_USER="jack"
+JACK_GROUP="jack"
+
+# Options to JACK (e.g. -m, -n, -p, -r, -P, -t, -C, -u, -v)
+JACK_OPTIONS="{{jackaudio_options|replace('\n',' ')|trim}}"
+# Audio backend (e.g. alsa, dummy, firewire, netone, oss, portaudio)
+DRIVER="{{jackaudio_driver}}"
+# Specific settings for the audio backend in use
+DRIVER_SETTINGS="{{jackaudio_driver_settings|replace('\n',' ')|trim}}"

templates/jack.service.j2

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+{{ansible_managed|comment}}
+
+[Unit]
+Description=JACK server
+Documentation=man:jackd(1)
+After=sound.target
+
+[Service]
+EnvironmentFile=/etc/jack.conf
+ExecStart=jackd $JACK_OPTIONS -d $DRIVER $DRIVER_SETTINGS
+LimitRTPRIO=95
+LimitRTTIME=infinity
+LimitMEMLOCK=infinity
+# Caution: use on memory-limited devices only
+# OOMScoreAdjust=-1000
+#Environment=DBUS_SESSION_BUS_ADDRESS=unix:path=/run/dbus/system_bus_socket
+User=jack
+Group=jack
+Environment="JACK_PROMISCUOUS_SERVER=jack"
+UMask=0
+
+[Install]
+WantedBy=multi-user.target

vars/main.yaml

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+jackaudio_options: |
+  -{{ jackaudio_realtime | ternary('R','r') }}
+  {{jackaudio_additional_options}}