Hi everyone! We have kolide launcher deployed inside a docker container which we are trying to connect to a fleetdm server running in Kubernetes behind an AWS network load balancer. Even if we remove TLS from the load balancer and just connect launcher using

--insecure --insecure_transport

, we get the following error:

"err":"enrolling host: transport error in enrollment: rpc error: code = Unavailable desc = all SubConns are in TransientFailure, latest connection error: connection closed"

. Is this a known problem when connecting to fleetdm behind a load balancer? We have a separate fleetdm server running on an EC2 instance without any load balancers in front and the same launcher installation in the docker container can connect to it just fine. We want to dig deeper and know what is causing the issue.

Hey Carlo, let's move this over to #C01DXJL16D8

Thanks, zwass! Maybe it would help to add that we are using fleetdm v3.5.1.