PoC: Frigate + PCIe Coral + ESPCam, Home Assistant, ESPHome, MQTT, zigbee2mqtt

machines/storage/s0/default.nix

@@ -3,6 +3,7 @@
 {
   imports = [
     ./hardware-configuration.nix
+    ./home-automation.nix
   ];
 
   networking.hostName = "s0";

machines/storage/s0/home-automation.nix

@@ -0,0 +1,135 @@
+{ config, ... }:
+
+{
+  networking.firewall.allowedTCPPorts = [
+    # 1883 # mqtt
+    55834 # mqtt zigbee frontend
+  ];
+
+  services.frigate = {
+    enable = true;
+    hostname = "frigate.s0";
+    settings = {
+      mqtt = {
+        enabled = true;
+        host = "localhost:1883";
+      };
+      cameras = {
+        dahlia-cam = {
+          ffmpeg = {
+            input_args = "";
+            inputs = [{
+              path = "http://dahlia-cam.lan:8080";
+              roles = [ "detect" "record" ];
+            }];
+
+            output_args.record = "-f segment -pix_fmt yuv420p -segment_time 10 -segment_format mp4 -reset_timestamps 1 -strftime 1 -c:v libx264 -preset ultrafast -an ";
+          };
+          rtmp.enabled = false;
+          snapshots = {
+            enabled = true;
+            bounding_box = true;
+          };
+          record = {
+            enabled = false;
+            retain.days = 0; # To not retain any recording if there is no detection of any events 
+            events.retain = {
+              default = 3; # To retain recording for 3 days of only the events that happened
+              mode = "active_objects";
+            };
+          };
+          detect = {
+            enabled = true;
+            width = 800;
+            height = 600;
+            fps = 20;
+          };
+          objects = {
+            track = [ "dog" ];
+            filters.dog.threshold = 0.4;
+          };
+        };
+      };
+      # ffmpeg = {
+      #   hwaccel_args = "preset-vaapi";
+      # };
+      detectors.coral = {
+        type = "edgetpu";
+        device = "pci";
+      };
+    };
+  };
+
+  # AMD GPU for vaapi
+  systemd.services.frigate.environment.LIBVA_DRIVER_NAME = "radeonsi";
+
+  # Coral TPU for frigate
+  services.udev.packages = [ pkgs.libedgetpu ];
+  users.groups.apex = { };
+  systemd.services.frigate.environment.LD_LIBRARY_PATH = "${pkgs.libedgetpu}/lib";
+  systemd.services.frigate.serviceConfig = {
+    SupplementaryGroups = "apex";
+  };
+  # Coral PCIe driver
+  kernel.enableGasketKernelModule = true;
+
+  services.esphome = {
+    enable = true;
+    address = "0.0.0.0";
+    openFirewall = true;
+  };
+  systemd.services.esphome.serviceConfig.ProcSubset = lib.mkForce "all";
+  systemd.services.esphome.serviceConfig.ProtectHostname = lib.mkForce false;
+  systemd.services.esphome.serviceConfig.ProtectKernelLogs = lib.mkForce false;
+  systemd.services.esphome.serviceConfig.ProtectKernelTunables = lib.mkForce false;
+
+  # TODO lock down
+  services.mosquitto = {
+    enable = true;
+    listeners = [
+      {
+        acl = [ "pattern readwrite #" ];
+        omitPasswordAuth = true;
+        settings.allow_anonymous = true;
+      }
+    ];
+  };
+
+  services.zigbee2mqtt = {
+    enable = true;
+    settings = {
+      homeassistant = true;
+      permit_join = false;
+      serial = {
+        port = "/dev/ttyACM0";
+      };
+      mqtt = {
+        server = "mqtt://localhost:1883";
+        # base_topic = "zigbee2mqtt";
+      };
+      frontend = {
+        host = "0.0.0.0";
+        port = 55834;
+      };
+    };
+  };
+
+  services.home-assistant = {
+    enable = true;
+    openFirewall = true;
+    configWritable = true;
+    extraComponents = [
+      "esphome"
+      "met"
+      "radio_browser"
+      "wled"
+      "mqtt"
+    ];
+    # config = null;
+    config = {
+      # Includes dependencies for a basic setup
+      # https://www.home-assistant.io/integrations/default_config/
+      default_config = { };
+    };
+  };
+}