feat(netbird): deploy the reverse-proxy-services controller

Deployment for the controller of the previous commit: openbao namespace
like the rotators (its default-deny already allows OpenBao, DNS, the
apiserver and world), own ServiceAccount with a read-only ClusterRole
(Ingresses list/watch, Services get), one replica, Recreate. The image tag
is the branch build that pushed this exact code.

The OpenBao role is applied once by hand (policies/netbird-proxy-services
.hcl); until then the pod logs an auth error per minute and changes nothing.

Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>

kubernetes/infrastructure/kustomization.yaml

@@ -18,6 +18,7 @@ resources:
   - cloudnative-pg/
   - mariadb-operator/
   - netbird-ingress/
+  - netbird-proxy-services/
   - coredns-config/
   - k8s-gateway/
   - external-dns-unifi/

kubernetes/infrastructure/netbird-proxy-services/deployment.yaml

@@ -0,0 +1,99 @@
+# Reconciles NetBird reverse-proxy services from Ingresses that carry
+# dns.renner.uno/public: one TLS-passthrough service per host on :443,
+# targeting Traefik's ClusterIP through a subnet resource over the service
+# CIDR (ci/images/netbird-proxy-services/controller.py).
+#
+# openbao namespace, like the rotators: its default-deny already allows egress
+# to OpenBao, DNS, the apiserver and `world` (netbird.renner.uno), and the
+# NetBird PAT is read from OpenBao on every pass through the
+# netbird-proxy-services role — policies/netbird-proxy-services.hcl, applied
+# once by hand like the rotator roles. Until that role exists the pod logs an
+# auth error each minute and does nothing.
+apiVersion: v1
+kind: ServiceAccount
+metadata:
+  name: netbird-proxy-services
+  namespace: openbao
+  labels:
+    app.kubernetes.io/name: netbird-proxy-services
+---
+# Read-only, cluster-wide: public Ingresses live in many namespaces, the
+# Traefik Service in ingress/.
+apiVersion: rbac.authorization.k8s.io/v1
+kind: ClusterRole
+metadata:
+  name: netbird-proxy-services-read
+rules:
+  - apiGroups: ["networking.k8s.io"]
+    resources: ["ingresses"]
+    verbs: ["get", "list", "watch"]
+  - apiGroups: [""]
+    resources: ["services"]
+    verbs: ["get"]
+---
+apiVersion: rbac.authorization.k8s.io/v1
+kind: ClusterRoleBinding
+metadata:
+  name: netbird-proxy-services-read
+roleRef:
+  apiGroup: rbac.authorization.k8s.io
+  kind: ClusterRole
+  name: netbird-proxy-services-read
+subjects:
+  - kind: ServiceAccount
+    name: netbird-proxy-services
+    namespace: openbao
+---
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: netbird-proxy-services
+  namespace: openbao
+  labels:
+    app.kubernetes.io/name: netbird-proxy-services
+spec:
+  replicas: 1
+  # One writer against the management API at a time.
+  strategy:
+    type: Recreate
+  selector:
+    matchLabels:
+      app.kubernetes.io/name: netbird-proxy-services
+  template:
+    metadata:
+      labels:
+        app.kubernetes.io/name: netbird-proxy-services
+    spec:
+      serviceAccountName: netbird-proxy-services
+      securityContext:
+        runAsNonRoot: true
+        seccompProfile:
+          type: RuntimeDefault
+      containers:
+        - name: controller
+          image: gitea.renner.uno/gitea_admin/netbird-proxy-services:2026-09-07
+          securityContext:
+            allowPrivilegeEscalation: false
+            readOnlyRootFilesystem: true
+            capabilities:
+              drop: ["ALL"]
+          env:
+            - name: NB_MANAGEMENT_URL
+              value: https://netbird.renner.uno
+            - name: BAO_ADDR
+              value: http://openbao.openbao.svc.cluster.local:8200
+            - name: BAO_ROLE
+              value: netbird-proxy-services
+            # Must match cluster.network.serviceSubnets in talos/patches/cluster.yaml.
+            - name: SERVICE_CIDR
+              value: "10.96.0.0/12"
+            - name: TRAEFIK_SERVICE
+              value: ingress/traefik
+            - name: INTERVAL_SECONDS
+              value: "60"
+          resources:
+            requests:
+              cpu: 10m
+              memory: 32Mi
+            limits:
+              memory: 64Mi

kubernetes/infrastructure/netbird-proxy-services/kustomization.yaml

@@ -0,0 +1,4 @@
+apiVersion: kustomize.config.k8s.io/v1beta1
+kind: Kustomization
+resources:
+  - deployment.yaml

kubernetes/talos/patches/k8s-1.yaml

@@ -14,6 +14,13 @@ machine:
     # Disabling v6 on a VLAN parent does not affect the VLAN child.
     net.ipv6.conf.enp2s0f0np0.disable_ipv6: "1"
     net.ipv6.conf.enp87s0.disable_ipv6: "1"
+    # That network also carries the mgmt VLAN's ARP. Answer ARP only on the
+    # link that owns the address, or the UDM learns the node IP against
+    # enp87s0's MAC and delivers IPv4 to a NIC Cilium is not attached to (#793).
+    net.ipv4.conf.all.arp_ignore: "1"
+    net.ipv4.conf.default.arp_ignore: "1"
+    net.ipv4.conf.all.arp_announce: "2"
+    net.ipv4.conf.default.arp_announce: "2"
   install:
     # Select disks by serial only. A broad selector such as
     # `disk.transport == 'nvme'` matches every drive in the machine, and the

kubernetes/talos/patches/k8s-2.yaml

@@ -12,6 +12,11 @@ machine:
     # cluster IPv6 egress.
     net.ipv6.conf.enp2s0f0np0.disable_ipv6: "1"
     net.ipv6.conf.enp87s0.disable_ipv6: "1"
+    # Answer ARP only on the link that owns the address — see k8s-1.yaml (#793).
+    net.ipv4.conf.all.arp_ignore: "1"
+    net.ipv4.conf.default.arp_ignore: "1"
+    net.ipv4.conf.all.arp_announce: "2"
+    net.ipv4.conf.default.arp_announce: "2"
   install:
     # Select the installer target by serial so it cannot land on the OSD drive
     # or on EPHEMERAL, whatever order the kernel enumerates them in.

kubernetes/talos/patches/k8s-3.yaml

@@ -8,6 +8,11 @@ machine:
     # k8s-1.yaml.
     net.ipv6.conf.enp2s0f0np0.disable_ipv6: "1"
     net.ipv6.conf.enp87s0.disable_ipv6: "1"
+    # Answer ARP only on the link that owns the address — see k8s-1.yaml (#793).
+    net.ipv4.conf.all.arp_ignore: "1"
+    net.ipv4.conf.default.arp_ignore: "1"
+    net.ipv4.conf.all.arp_announce: "2"
+    net.ipv4.conf.default.arp_announce: "2"
   install:
     # Select the installer target by serial so it cannot land on the OSD drive
     # or on EPHEMERAL, whatever order the kernel enumerates them in.