migrate opensearch to operator pattern (operator + cluster CR)

manifests/opensearch/cluster.yaml

@@ -0,0 +1,31 @@
+apiVersion: opensearch.opster.io/v1
+kind: OpenSearchCluster
+metadata:
+  name: shared-os
+  namespace: opensearch
+spec:
+  general:
+    version: "3.7.0"
+    serviceName: shared-os
+    setVMMaxMapCount: true
+  security: null
+  nodePools:
+    - component: nodes
+      replicas: 1
+      roles:
+        - master
+        - data
+        - ingest
+        - remote_cluster_client
+      jvm: "-Xmx512M -Xms512M"
+      diskSize: 8Gi
+      persistence:
+        pvc:
+          storageClass: yc-network-hdd
+      resources:
+        requests:
+          cpu: 100m
+          memory: 768Mi
+        limits:
+          cpu: 500m
+          memory: 1Gi