migrate opensearch to operator pattern (operator + cluster CR)

argocd/apps/opensearch-cluster.yaml

@@ -0,0 +1,22 @@
+apiVersion: argoproj.io/v1alpha1
+kind: Application
+metadata:
+  name: opensearch-cluster
+  namespace: argocd
+  finalizers:
+    - resources-finalizer.argocd.argoproj.io
+spec:
+  project: default
+  source:
+    repoURL: http://gitea.gitea.svc.cluster.local:3000/admin/main.git
+    targetRevision: master
+    path: manifests/opensearch
+    directory:
+      recurse: true
+      include: "*.yaml"
+  destination:
+    server: https://kubernetes.default.svc
+    namespace: opensearch
+  syncPolicy:
+    syncOptions:
+      - CreateNamespace=true