Enable Spring Boot Actuator for site

Hi everyone,
we have a distributed installation of Bloomreach and as described in the documentation [Enable Spring Boot Actuator - Bloomreach Experience Manager (PaaS/Self-Hosted) - The Fast and Flexible Headless CMS] we enabled the Spring Boot Actuator for the authoring pod. Now, we struggle enabling Spring Boot for the site pod. I added the dependencies, actuator properties and application.properties to the platform pom, but it seems that there’s more configuration needed, because the metrics are not sent out via the site restapi.
Did anyone already managed to activate Spring Boot Actuator for the site?
Thanks a lot for your help