Initially, before implementing the domain model, the dependency and configuration class need to be specified. The following Maven starter dependency needs to be included:

<dependencies>
   <dependency>
      <groupId>org.springframework.boot</groupId>
      <artifactId>spring-boot-starter-data-elasticsearch</artifactId>
   </dependency>
</dependencies>

The following configuration properties in the application.properties file need to be set to configure the Elasticsearch cluster nodes:

spring.data.elasticsearch.cluster-nodes=localhost:9300

The preceding configuration uses spring.data.elasticsearch.cluster-nodes to set the Elasticsearch cluster node IP/hostname and port.