Add org.springframework.cloud:spring-cloud-stream and org.springframework.cloud:spring-cloud-starter-stream-rabbit to your Spring Boot application POM to turn it into Stream Cloud Stream Application:

    <dependency>
        <groupId>org.springframework.cloud</groupId>
        <artifactId>spring-cloud-stream</artifactId>
    </dependency>
    
    <dependency>
        <groupId>org.springframework.cloud</groupId>
        <artifactId>spring-cloud-starter-stream-rabbit</artifactId>
    </dependency>

To replace Rabbit by Kafka binder use the org.springframework.cloud:spring-cloud-starter-stream-kafka dependency instead instead.

To enable SCDF Prometheus Proxy monitoring for your application you would need to add the following additional additional dependencies:

    <dependency>
        <groupId>org.springframework.cloud.stream.app</groupId>
        <artifactId>app-starters-micrometer-common</artifactId>
        <version>2.1.2.RELEASE</version>
    </dependency>
    <dependency>
        <groupId>io.micrometer</groupId>
        <artifactId>micrometer-registry-prometheus</artifactId>
    </dependency>    
    <dependency>
        <groupId>io.micrometer.prometheus</groupId>
        <artifactId>prometheus-rsocket-spring</artifactId>
        <version>0.9.0</version>
    </dependency>

The micrometer-registry-prometheus amd prometheus-rsocket-spring activate the Micrometer Prometheus support for RSocket Proxy meter registry. The app-starters-micrometer-common would inject some common metrics Tags such as stream.name, stream.app.label, application.type and application.guid. Later are used in the SCDF Grafna Dashboards to visualize the Stream Application rates, throughput and so on.

To find more about the Spring Cloud Data Flow Monitoring architecture visit the Stream Monitoring with Prometheus and InfluxDB documentation.