* Ensure that datasource apiservers receive and forwards headers for datasources: - adds log line for prometheus to see when from alert header is received - add logging to the datasource apiserver - Updates the Connect func in sub query to forward expected headers to datasources and log unexpected ones.
Experimental!
This is exploring how to expose any datasource as a k8s aggregated API server.
Unlike the other services, this will register datasources as:
{plugin}.datasource.grafana.app