fix: traefik ingress for k3s cluster

infrastructure/traefik-app.yaml

@@ -14,7 +14,19 @@ spec:
     helm:
       values: |
         deployment:
-          replicas: 2
+          replicas: 3  # HA: Einer pro Node
+          affinity:
+            podAntiAffinity:
+              preferredDuringSchedulingIgnoredDuringExecution:
+                - weight: 100
+                  podAffinityTerm:
+                    labelSelector:
+                      matchExpressions:
+                        - key: app.kubernetes.io/name
+                          operator: In
+                          values:
+                            - traefik
+                    topologyKey: kubernetes.io/hostname
         service:
           enabled: true
           type: LoadBalancer

infrastructure/traefik-pdb-app.yaml

@@ -0,0 +1,27 @@
+apiVersion: argoproj.io/v1alpha1
+kind: Application
+metadata:
+  name: traefik-pdb
+  namespace: argocd
+  annotations:
+    argocd.argoproj.io/sync-wave: "0"  # Nach Traefik Deployment
+spec:
+  project: default
+  source:
+    repoURL: https://git.cloud-infra.prod.openmailserver.de/stabify/gitops.git
+    targetRevision: HEAD
+    path: infrastructure
+    directory:
+      recurse: false
+      include: |
+        traefik-pdb.yaml
+  destination:
+    server: https://kubernetes.default.svc
+    namespace: traefik-system
+  syncPolicy:
+    automated:
+      prune: true
+      selfHeal: true
+    syncOptions:
+      - CreateNamespace=true
+      - ServerSideApply=true

infrastructure/traefik-pdb.yaml

@@ -0,0 +1,12 @@
+apiVersion: policy/v1
+kind: PodDisruptionBudget
+metadata:
+  name: traefik
+  namespace: traefik-system
+  labels:
+    app.kubernetes.io/name: traefik
+spec:
+  minAvailable: 1  # Mindestens 1 Pod muss immer verfügbar sein
+  selector:
+    matchLabels:
+      app.kubernetes.io/name: traefik