feat: migrate tailscale-operator to OAuth auth mode

Reviewed-on: #38

.gitea/workflows/validate.yaml

@@ -0,0 +1,58 @@
+name: Validate Manifests
+
+on:
+  pull_request:
+    branches: [main]
+
+jobs:
+  validate:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+
+      - name: Install kubeconform
+        run: |
+          curl -sL https://github.com/yannh/kubeconform/releases/download/v0.6.7/kubeconform-linux-amd64.tar.gz \
+            | tar xz -C /usr/local/bin
+          chmod +x /usr/local/bin/kubeconform
+
+      - name: Schema validation (kubeconform)
+        run: |
+          find . -name '*.yaml' -o -name '*.yml' \
+            | grep -v '\.gitea/' \
+            | sort \
+            | xargs kubeconform \
+                -strict \
+                -ignore-missing-schemas \
+                -kubernetes-version 1.30.0 \
+                -summary
+
+      - name: Install kubectl
+        run: |
+          K8S_VER=$(curl -sL https://dl.k8s.io/release/stable.txt)
+          curl -sLO "https://dl.k8s.io/release/${K8S_VER}/bin/linux/amd64/kubectl"
+          chmod +x kubectl && mv kubectl /usr/local/bin/kubectl
+
+      - name: Server-side dry-run (CRD existence check)
+        env:
+          KUBECONFIG_DATA: ${{ secrets.KUBECONFIG }}
+        run: |
+          echo "$KUBECONFIG_DATA" | base64 -d > /tmp/kube.yaml
+          # Apply all YAML files in sorted order — server-side dry-run rejects
+          # any apiVersion/Kind whose CRD is not installed in the cluster.
+          find . -name '*.yaml' -o -name '*.yml' \
+            | grep -v '\.gitea/' \
+            | sort \
+            | xargs -I{} kubectl apply \
+                --dry-run=server \
+                --kubeconfig /tmp/kube.yaml \
+                -f {} 2>&1 \
+            | tee /tmp/dryrun.log
+          rm -f /tmp/kube.yaml
+          # Fail if any "no kind is registered" or "no matches for kind" errors
+          if grep -qE "no kind is registered|no matches for kind|unknown field" /tmp/dryrun.log; then
+            echo "❌ Dry-run found unknown resources or fields — manifests reference CRDs not installed in the cluster"
+            exit 1
+          fi
+          echo "✅ All manifests passed server-side dry-run"

deployments/tailscale-operator/deployment.yaml

@@ -0,0 +1,55 @@
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: tailscale-operator
+  namespace: tailscale
+  labels:
+    app: tailscale-operator
+spec:
+  replicas: 1
+  selector:
+    matchLabels:
+      app: tailscale-operator
+  template:
+    metadata:
+      labels:
+        app: tailscale-operator
+    spec:
+      containers:
+        - name: operator
+          image: ghcr.io/tailscale/operator:latest
+          ports:
+            - containerPort: 8080
+              name: http-metrics
+              protocol: TCP
+          env:
+            - name: TS_KUBE_NAMESPACE
+              valueFrom:
+                fieldRef:
+                  fieldPath: metadata.namespace
+          envFrom:
+            - secretRef:
+                name: tailscale-operator-secret
+          volumeMounts:
+            - name: oauth-config
+              mountPath: /etc/tailscale/oauth
+              readOnly: true
+      volumes:
+        - name: oauth-config
+          secret:
+            secretName: tailscale-operator-secret
+---
+apiVersion: v1
+kind: Service
+metadata:
+  name: tailscale-operator
+  namespace: tailscale
+  labels:
+    app: tailscale-operator
+spec:
+  ports:
+    - port: 8080
+      name: http-metrics
+      targetPort: http-metrics
+  selector:
+    app: tailscale-operator

deployments/tailscale-operator/namespace.yaml

@@ -1,3 +1,13 @@
+apiVersion: v1
+kind: Namespace
+metadata:
+  name: tailscale
+  labels:
+    app.kubernetes.io/name: tailscale-operator
+    app.kubernetes.io/part-of: infrastructure
+    management: gitops
+    managed-by: orion
+---
 apiVersion: apps/v1
 kind: Deployment
 metadata:
@@ -5,6 +15,9 @@ metadata:
   namespace: tailscale
   labels:
     app.kubernetes.io/name: tailscale-operator
+    app.kubernetes.io/part-of: infrastructure
+    management: gitops
+    managed-by: orion
 spec:
   replicas: 1
   selector:
@@ -18,13 +31,15 @@ spec:
       serviceAccountName: tailscale-operator
       containers:
         - name: operator
-          image: ghcr.io/tailscale/kubernetes-operator:v1.70.1
+          image: ghcr.io/tailscale/k8s-operator:1.78.1
           env:
             - name: TS_AUTH_KEY
               valueFrom:
                 secretKeyRef:
                   name: tailscale-auth
                   key: TS_AUTH_KEY
+            - name: TS_USERSPACE
+              value: "true"
           resources:
             requests:
               cpu: 50m

deployments/tailscale/external-secret.yaml

@@ -0,0 +1,18 @@
+apiVersion: external-secrets.io/v1beta1
+kind: ExternalSecret
+metadata:
+  name: tailscale-auth
+  namespace: tailscale
+spec:
+  refreshInterval: 1h
+  secretStoreRef:
+    name: orion-vault
+    kind: ClusterSecretStore
+  target:
+    name: tailscale-auth
+    creationPolicy: Owner
+  data:
+    - secretKey: TS_AUTH_KEY
+      remoteRef:
+        key: Talos Cluster/tailscale
+        property: TS_AUTH_KEY

deployments/tailscale/operator/clusterrole.yaml

@@ -0,0 +1,17 @@
+apiVersion: rbac.authorization.k8s.io/v1
+kind: ClusterRole
+metadata:
+  name: tailscale-operator
+rules:
+  - apiGroups: [""]
+    resources: ["secrets", "configmaps", "services", "pods", "endpoints"]
+    verbs: ["get", "list", "watch", "create", "update", "patch", "delete"]
+  - apiGroups: ["apps"]
+    resources: ["deployments", "statefulsets", "daemonsets"]
+    verbs: ["get", "list", "watch", "create", "update", "patch", "delete"]
+  - apiGroups: ["networking.k8s.io"]
+    resources: ["ingresses"]
+    verbs: ["get", "list", "watch", "create", "update", "patch", "delete"]
+  - apiGroups: ["tailscale.com"]
+    resources: ["*"]
+    verbs: ["get", "list", "watch", "create", "update", "patch", "delete"]

deployments/tailscale/operator/clusterrolebinding.yaml

@@ -0,0 +1,12 @@
+apiVersion: rbac.authorization.k8s.io/v1
+kind: ClusterRoleBinding
+metadata:
+  name: tailscale-operator
+roleRef:
+  apiGroup: rbac.authorization.k8s.io
+  kind: ClusterRole
+  name: tailscale-operator
+subjects:
+  - kind: ServiceAccount
+    name: tailscale-operator
+    namespace: tailscale

deployments/tailscale/operator/deployment.yaml

@@ -0,0 +1,50 @@
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: tailscale-operator
+  namespace: tailscale
+  labels:
+    app: tailscale-operator
+spec:
+  replicas: 1
+  selector:
+    matchLabels:
+      app: tailscale-operator
+  template:
+    metadata:
+      labels:
+        app: tailscale-operator
+    spec:
+      serviceAccountName: tailscale-operator
+      containers:
+        - name: operator
+          image: ghcr.io/tailscale/k8s-operator:v1.78.3
+          imagePullPolicy: IfNotPresent
+          env:
+            - name: POD_NAME
+              valueFrom:
+                fieldRef:
+                  fieldPath: metadata.name
+            - name: POD_NAMESPACE
+              valueFrom:
+                fieldRef:
+                  fieldPath: metadata.namespace
+            - name: TS_CLIENT_ID_FILE
+              value: /etc/tailscale/oauth/client-id
+            - name: TS_CLIENT_SECRET_FILE
+              value: /etc/tailscale/oauth/client-secret
+          volumeMounts:
+            - name: oauth-secret
+              mountPath: /etc/tailscale/oauth
+              readOnly: true
+          resources:
+            requests:
+              cpu: 100m
+              memory: 128Mi
+            limits:
+              cpu: 500m
+              memory: 512Mi
+      volumes:
+        - name: oauth-secret
+          secret:
+            secretName: tailscale-operator-secret

deployments/tailscale/operator/serviceaccount.yaml

@@ -0,0 +1,7 @@
+apiVersion: v1
+kind: ServiceAccount
+metadata:
+  name: tailscale-operator
+  namespace: tailscale
+  labels:
+    app: tailscale-operator

deployments/tailscale/tailscale-operator/deployment.yaml

@@ -0,0 +1,37 @@
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: tailscale-operator
+  namespace: tailscale
+spec:
+  replicas: 1
+  selector:
+    matchLabels:
+      app: tailscale-operator
+  template:
+    metadata:
+      labels:
+        app: tailscale-operator
+    spec:
+      containers:
+      - name: operator
+        image: ghcr.io/tailscale/k8s-operator:latest
+        env:
+        - name: TS_K8S_NAMESPACE
+          valueFrom:
+            fieldRef:
+              fieldPath: metadata.namespace
+        - name: TS_K8S_SECRET
+          value: tailscale-operator-secret
+        - name: TS_CLIENT_ID_FILE
+          value: /etc/tailscale/oauth/client-id
+        - name: TS_CLIENT_SECRET_FILE
+          value: /etc/tailscale/oauth/client-secret
+        volumeMounts:
+        - name: oauth-secret
+          mountPath: /etc/tailscale/oauth
+          readOnly: true
+      volumes:
+      - name: oauth-secret
+        secret:
+          secretName: tailscale-operator-secret

infra/tailscale/namespace.yaml

@@ -1,6 +0,0 @@
-apiVersion: v1
-kind: Namespace
-metadata:
-  name: tailscale
-  labels:
-    app.kubernetes.io/name: tailscale

infra/tailscale/rbac.yaml

@@ -1,36 +0,0 @@
-apiVersion: v1
-kind: ServiceAccount
-metadata:
-  name: tailscale-operator
-  namespace: tailscale
----
-apiVersion: rbac.authorization.k8s.io/v1
-kind: ClusterRole
-metadata:
-  name: tailscale-operator
-rules:
-  - apiGroups: ["apps"]
-    resources: ["deployments", "statefulsets", "daemonsets"]
-    verbs: ["get", "list", "watch", "update", "patch"]
-  - apiGroups: [""]
-    resources: ["services", "endpoints"]
-    verbs: ["get", "list", "watch", "update", "patch"]
-  - apiGroups: ["policy.tailscale.com"]
-    resources: ["tailnets", "tailscales"]
-    verbs: ["get", "list", "watch", "create", "update", "patch", "delete"]
-  - apiGroups: ["policy.tailscale.com"]
-    resources: ["tailnets/status", "tailscales/status"]
-    verbs: ["get", "update", "patch"]
----
-apiVersion: rbac.authorization.k8s.io/v1
-kind: ClusterRoleBinding
-metadata:
-  name: tailscale-operator
-roleRef:
-  apiGroup: rbac.authorization.k8s.io
-  kind: ClusterRole
-  name: tailscale-operator
-subjects:
-  - kind: ServiceAccount
-    name: tailscale-operator
-    namespace: tailscale

infra/tailscale/tailnet-cr.yaml

@@ -1,9 +0,0 @@
-apiVersion: policy.tailscale.com/v1alpha1
-kind: Tailnet
-metadata:
-  name: default
-  namespace: tailscale
-spec:
-  tagAuths:
-    - tag: k8s-tailscale-operator
-      approved: true

tailscale/deployment.yaml

@@ -0,0 +1,43 @@
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: tailscale-operator
+  namespace: tailscale
+  labels:
+    app: tailscale-operator
+spec:
+  replicas: 1
+  selector:
+    matchLabels:
+      app: tailscale-operator
+  template:
+    metadata:
+      labels:
+        app: tailscale-operator
+    spec:
+      serviceAccountName: tailscale-operator
+      containers:
+        - name: operator
+          image: ghcr.io/tailscale/k8s-operator:v1.78.3
+          env:
+            - name: POD_NAME
+              valueFrom:
+                fieldRef:
+                  fieldPath: metadata.name
+            - name: POD_NAMESPACE
+              valueFrom:
+                fieldRef:
+                  fieldPath: metadata.namespace
+            - name: CLIENT_ID_FILE
+              value: /etc/tailscale/operator/client-id
+            - name: CLIENT_SECRET_FILE
+              value: /etc/tailscale/operator/client-secret
+          volumeMounts:
+            - name: operator-secret
+              mountPath: /etc/tailscale/operator
+              readOnly: true
+          resources: {}
+      volumes:
+        - name: operator-secret
+          secret:
+            secretName: tailscale-operator-secret

tailscale/operator/deployment.yaml

@@ -0,0 +1,42 @@
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: tailscale-operator
+  namespace: tailscale
+  labels:
+    app: tailscale-operator
+spec:
+  replicas: 1
+  selector:
+    matchLabels:
+      app: tailscale-operator
+  template:
+    metadata:
+      labels:
+        app: tailscale-operator
+    spec:
+      serviceAccountName: tailscale-operator
+      containers:
+      - name: operator
+        image: ghcr.io/tailscale/k8s-operator:v1.78.3
+        env:
+        - name: POD_NAME
+          valueFrom:
+            fieldRef:
+              fieldPath: metadata.name
+        - name: POD_NAMESPACE
+          valueFrom:
+            fieldRef:
+              fieldPath: metadata.namespace
+        - name: TS_CLIENT_ID_FILE
+          value: /etc/tailscale/oauth/client-id
+        - name: TS_CLIENT_SECRET_FILE
+          value: /etc/tailscale/oauth/client-secret
+        volumeMounts:
+        - name: oauth-secret
+          mountPath: /etc/tailscale/oauth
+          readOnly: true
+      volumes:
+      - name: oauth-secret
+        secret:
+          secretName: tailscale-operator-secret

tailscale/tailscale-operator/deployment.yaml

@@ -0,0 +1,42 @@
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: tailscale-operator
+  namespace: tailscale
+  labels:
+    app: tailscale-operator
+spec:
+  replicas: 1
+  selector:
+    matchLabels:
+      app: tailscale-operator
+  template:
+    metadata:
+      labels:
+        app: tailscale-operator
+    spec:
+      serviceAccountName: tailscale-operator
+      containers:
+      - name: operator
+        image: ghcr.io/tailscale/k8s-operator:v1.78.3
+        env:
+        - name: POD_NAME
+          valueFrom:
+            fieldRef:
+              fieldPath: metadata.name
+        - name: POD_NAMESPACE
+          valueFrom:
+            fieldRef:
+              fieldPath: metadata.namespace
+        - name: TS_CLIENT_ID_FILE
+          value: /etc/tailscale/oauth/client-id
+        - name: TS_CLIENT_SECRET_FILE
+          value: /etc/tailscale/oauth/client-secret
+        volumeMounts:
+        - name: oauth-secret
+          mountPath: /etc/tailscale/oauth
+          readOnly: true
+      volumes:
+      - name: oauth-secret
+        secret:
+          secretName: tailscale-operator-secret

test-file.yaml

@@ -1 +0,0 @@
-hello: world