From e1604ce1933f60daec18e284d1e8c1ce63aa3b56 Mon Sep 17 00:00:00 2001
From: Timo Makinen <tmakinen@foo.sh>
Date: Fri, 9 Feb 2024 12:12:01 +0000
Subject: [PATCH] frigate: Add USB Coral detector

---
 host_vars/frigate02.home.foo.sh.yml                |  2 ++
 roles/frigate/files/99-frigate.rules               |  1 +
 roles/frigate/tasks/main.yml                       | 14 ++++++++++++++
 .../frigate/templates/frigate-container.service.j2 |  1 +
 roles/frigate/templates/frigate.yml.j2             |  5 +++++
 5 files changed, 23 insertions(+)
 create mode 100644 roles/frigate/files/99-frigate.rules

diff --git a/host_vars/frigate02.home.foo.sh.yml b/host_vars/frigate02.home.foo.sh.yml
index cc597b3..0705564 100644
--- a/host_vars/frigate02.home.foo.sh.yml
+++ b/host_vars/frigate02.home.foo.sh.yml
@@ -11,3 +11,5 @@ network_interfaces:
     netmask: 255.255.255.0
     proto: static
     nameservers: [172.20.26.1, 172.20.26.3]
+virt_install_devices:
+  - 004.003
diff --git a/roles/frigate/files/99-frigate.rules b/roles/frigate/files/99-frigate.rules
new file mode 100644
index 0000000..f22efc5
--- /dev/null
+++ b/roles/frigate/files/99-frigate.rules
@@ -0,0 +1 @@
+SUBSYSTEM=="tty", ATTRS{idVendor}=="1a6e", ATTRS{idProduct}=="089a", MODE="0660", GROUP="frigate"
diff --git a/roles/frigate/tasks/main.yml b/roles/frigate/tasks/main.yml
index 5a13994..a5a4439 100644
--- a/roles/frigate/tasks/main.yml
+++ b/roles/frigate/tasks/main.yml
@@ -10,6 +10,20 @@
     group: frigate
     shell: /sbin/nologin
 
+- name: Allow podman to use devices
+  ansible.posix.seboolean:
+    name: container_use_devices
+    state: true
+    persistent: true
+
+- name: Allow frigate to connect specific devices
+  ansible.builtin.copy:
+    dest: /etc/udev/rules.d/99-frigate.rules
+    src: 99-frigate.rules
+    mode: "0644"
+    owner: root
+    group: "{{ ansible_wheel }}"
+
 - name: Create config
   ansible.builtin.template:
     dest: /etc/frigate.yml
diff --git a/roles/frigate/templates/frigate-container.service.j2 b/roles/frigate/templates/frigate-container.service.j2
index 186d955..edb295e 100644
--- a/roles/frigate/templates/frigate-container.service.j2
+++ b/roles/frigate/templates/frigate-container.service.j2
@@ -11,6 +11,7 @@ ExecStart=/usr/bin/podman run \
     --volume /srv/frigate/config:/config:rw \
     --volume /etc/frigate.yml:/config/config.yml:ro \
     --volume /srv/frigate/media:/media/frigate:rw \
+    --volume /dev/bus/usb:/dev/bus/usb:rw \
     ghcr.io/blakeblackshear/frigate:{{ frigate_version }}
 ExecStop=/usr/bin/podman stop --ignore frigate
 ExecStopPost=/usr/bin/podman rm -f --ignore frigate
diff --git a/roles/frigate/templates/frigate.yml.j2 b/roles/frigate/templates/frigate.yml.j2
index aa283f6..d04353b 100644
--- a/roles/frigate/templates/frigate.yml.j2
+++ b/roles/frigate/templates/frigate.yml.j2
@@ -2,6 +2,11 @@
 mqtt:
   enabled: false
 
+detectors:
+  coral:
+    type: edgetpu
+    device: usb
+
 cameras:
 {% for camera in cctv_cameras %}
   {{ camera.name }}: