add infra app logstash for omada syslog

kubernetes/infrastructure/logstash/logstash.yaml

@@ -0,0 +1,50 @@
+apiVersion: kustomize.toolkit.fluxcd.io/v1
+kind: Kustomization
+metadata:
+  name: logstash-secrets
+  namespace: flux-system
+spec:
+  interval: 10m
+  timeout: 1m30s
+  retryInterval: 30s
+  targetNamespace: logstash
+  path: ./logstash
+  prune: true
+  sourceRef:
+    kind: GitRepository
+    namespace: flux-system
+    name: home-cluster-ops-secrets
+  dependsOn:
+    - name: repositories
+      namespace: flux-system
+  decryption:
+    provider: sops
+    secretRef:
+      name: sops-age
+---
+apiVersion: kustomize.toolkit.fluxcd.io/v1
+kind: Kustomization
+metadata:
+  name: logstash
+  namespace: logstash
+spec:
+  interval: 10m
+  timeout: 1m30s
+  retryInterval: 30s
+  path: ./kubernetes/infrastructure/logstash/app
+  prune: true
+  sourceRef:
+    kind: GitRepository
+    namespace: flux-system
+    name: flux-system
+  dependsOn:
+    - name: namespaces
+      namespace: flux-system
+    - name: logstash-secrets
+      namespace: flux-system
+    - name: local-path-provisioner
+      namespace: local-path-storage
+  postBuild:
+    substituteFrom:
+      - kind: Secret
+        name: logstash-secrets