I aim to include extra sidecar containers, such as a metrics sidecar, allowing me to deploy an external metrics exporter alongside that would be scraped via service. I intend to configure annotations on the service for Prometheus automatic discovery, enabling the scraping of metrics and exposing the exporter container at the service level, similar to the one exposed when prometheus integration is enabled.

Updating the service spec is not currently possible, and as result, a lot of manual steps are required, like creating a custom service for each cluster, which points to the sidecar container with the required annotations in place.

This issue was detected while testing with MongoDB Community Operator.