Currently, the chart supports sidecar containers by default through the extraContainers values specified in the values.yaml file. However, there’s a gap in the default behavior of the service itself.

The Prefect Server’s service exposes only a single service port (specifically, port 4200). While this suffices for basic functionality, we recognize that users often require additional features, such as logging, facilitated by sidecar containers. In a microservices architecture, it’s common to have multi-port services to accommodate these requirements.

To enhance the Prefect Server’s flexibility and usability, we propose modifying the Helm chart to create a multi-port service by default. This adjustment will allow users to seamlessly incorporate sidecar containers without manual configuration.

I plan to address this issue by submitting a pull request in the coming days.