spec.http.service.spec section, you can change the Kubernetes service used to expose Elasticsearch:
spec: http: service: spec: type: LoadBalancer
Check the Kubernetes Publishing Services (ServiceTypes) that are currently available.
You can add an IP or a DNS name in the SAN of the self-signed certificate configured by default to secure the HTTP layer with TLS in the
spec: http: tls: selfSignedCertificate: subjectAltNames: - ip: 126.96.36.199 - dns: hulk.example.com