The transport module in Elasticsearch is used for internal communication between nodes within the cluster as well as communication between remote clusters. See the Elasticsearch documentation for details.
spec.transport.service. section, you can change the Kubernetes service used to expose the Elasticsearch transport module:
spec: transport: service: metadata: labels: my-custom: label spec: type: LoadBalancer
Check the Kubernetes Publishing Services (ServiceTypes) that are currently available.
When you change the
clusterIP setting of the service, ECK deletes and re-creates the service, as
clusterIP is an immutable field. This will cause a short network disruption, but in most cases it should not affect existing connections as the transport module uses long-lived TCP connections.