config/recipes/remoteclusters/elasticsearch.yaml

apiVersion: v1
kind: Namespace
metadata:
  name: ns1
---
apiVersion: elasticsearch.k8s.elastic.co/v1
kind: Elasticsearch
metadata:
  name: cluster1
  namespace: ns1
spec:
  version: 8.17.0
  remoteClusters:
    - name: to-ns2-cluster2
      elasticsearchRef:
        name: cluster2
        namespace: ns2
      apiKey:
        access:
          search:
            names:
              ## This requires the sample data available at https://kibana_url/app/home#/tutorial_directory/sampleData
              - kibana_sample_data_ecommerce
  nodeSets:
    - name: default
      config:
        node.store.allow_mmap: false
      count: 3
---
apiVersion: kibana.k8s.elastic.co/v1
kind: Kibana
metadata:
  name: kibana
  namespace: ns1
spec:
#  http:
#    service:
#      spec:
#        # expose this cluster Service with a LoadBalancer
#        type: LoadBalancer
  version: 8.17.0
  count: 1
  elasticsearchRef:
    name: "cluster1"
---
apiVersion: v1
kind: Namespace
metadata:
  name: ns2
---
apiVersion: elasticsearch.k8s.elastic.co/v1
kind: Elasticsearch
metadata:
  name: cluster2
  namespace: ns2
spec:
  version: 8.17.0
  ## Required for this cluster to be accessed using remote cluster API keys.
  remoteClusterServer:
    enabled: true
  nodeSets:
    - name: default
      config:
        node.store.allow_mmap: false
      count: 3
---
apiVersion: kibana.k8s.elastic.co/v1
kind: Kibana
metadata:
  name: kibana
  namespace: ns2
spec:
#  http:
#    service:
#      spec:
#        # expose this cluster Service with a LoadBalancer
#        type: LoadBalancer
  version: 8.17.0
  count: 1
  elasticsearchRef:
    name: "cluster2"