We are currently working on a scalabe Kubernetes setup for Jitsi. We have found a lot of valuable information in this forum and therefore also want to contribute to that.
Our setup is open source and can be found on Github: https://github.com/schul-cloud/jitsi-deployment
Feel free to use any of the resources there!
We have managed to setup Jitsi Meet in a multi-shard multi-JVB environment on a single Kubernetes cluster. In addition to that we also have monitoring (kube-prometheus), logging (ECK), and certificate handling (cert-manager) in place.
Our general architecture is pictured here: https://raw.githubusercontent.com/schul-cloud/jitsi-deployment/master/docs/architecture/build/jitsi_meet.png
We would also appreciate pointing out any issues that you can find!