add NetBird connectivity to Talos nodes

talos/patch-controlplane.yaml

@@ -12,9 +12,10 @@
 # --- install image ---
 # All three control planes are Raspberry Pi 4 systems currently installed on
 # their microSD (`mmcblk0`). The Image Factory schematic contains the
-# `rpi_generic` ARM64 overlay needed to boot this hardware. Keep this custom
-# installer reference during upgrades or the board-specific boot support may
-# be lost.
+# `rpi_generic` ARM64 overlay needed to boot this hardware and the NetBird
+# system extension used for private overlay connectivity. Keep this custom
+# installer reference during upgrades or the board-specific boot support and
+# NetBird binary may be lost.
 #
 # --- vip ---
 # With three control-plane nodes, "the cluster's API server" isn't one
@@ -38,7 +39,8 @@ cluster:
 machine:
   install:
     disk: /dev/mmcblk0
-    image: factory.talos.dev/metal-installer/ee21ef4a5ef808a9b7484cc0dda0f25075021691c8c09a276591eedb638ea1f9:v1.13.8
+    image: "factory.talos.dev/metal-installer/\
+      d093bb68c464b87cc637765535dde5f68fbb040da44280617dd11a42d6c03988:v1.13.8"
   network:
     interfaces:
       # Raspberry Pi 4's built-in Ethernet interface is named `end0` by