add source code and readme

manifests/infrastructure/elasticsearch/kustomization.yaml

@@ -0,0 +1,21 @@
+---
+apiVersion: kustomize.config.k8s.io/v1beta1
+kind: Kustomization
+
+namespace: elasticsearch-system
+
+resources:
+- namespace.yaml
+- repository.yaml
+- operator.yaml
+- cluster.yaml
+- secret.yaml
+- security-setup.yaml
+- monitoring.yaml
+
+# Apply resources in order
+# 1. Namespace and repository first
+# 2. Storage class and operator
+# 3. Cluster configuration
+# 4. Security setup (job runs after cluster is ready)
+# 5. Monitoring and ingress