feat: RPI worker node testing

This also came with a big rework of the configuration format that should
make everything a bit less hacky to work with.

talos/clusters/testing.yaml

@@ -4,6 +4,7 @@ controlPlaneIp: 192.168.1.100
 secretsFile: testing/secrets.yaml
 nodes:
   - testing/talos-vm
+  - testing/phobos
 
 default:
   network:

talos/nodes/testing/phobos.yaml

@@ -0,0 +1,8 @@
+# yaml-language-server: $schema=https://git.huizinga.dev/infra/crete/raw/branch/main/schemas/node.json
+type: worker
+network:
+  ip: 192.168.178.77
+  netmask: 255.255.255.0
+  gateway: 192.168.178.1
+install:
+  disk: /dev/sda

talos/patches/networking/tailscale.yaml

@@ -5,4 +5,4 @@ name: tailscale
 environment:
   - TS_AUTHKEY={{ node.network.tailscale.authKey }}
   - TS_EXTRA_ARGS={% if node.network.tailscale.server %}--login-server {{ node.network.tailscale.server }}{% endif +%}
-  - TS_ROUTES={% if node.network.tailscale.advertiseRoutes %}{{apply_netmask(node.network.ip, node.network.netmask)}}/{{ node.network.netmask | to_prefix }}{% endif %}
+  - TS_ROUTES={% if node.network.tailscale.advertiseRoutes %}{{node.network.ip}}/{{ node.network.netmask | to_prefix }}{% endif %}

talos/patches/storage/local-path-provisioner/user-volume.yaml

@@ -2,4 +2,8 @@
 apiVersion: v1alpha1
 kind: UserVolumeConfig
 name: local-path-provisioner
-volumeType: directory
+provisioning:
+  diskSelector:
+    match: system_disk
+  grow: true
+  maxSize: 10GB

talos/schematics/rpi.yaml

@@ -0,0 +1,9 @@
+overlay:
+  name: rpi_generic
+  image: siderolabs/sbc-raspberrypi
+customization:
+  systemExtensions:
+    officialExtensions:
+      - siderolabs/iscsi-tools
+      - siderolabs/util-linux-tools
+      - siderolabs/tailscale