Observability

[Courtcircuits]

We need support for Kubernetes metrics and we need to be able to export our logs to loki and/or opentelemtry

[Courtcircuits]

Won't close it yet because we still need :

• loki pushing function doesn't read new file after one hour
• the loki endpoint is hardcoded
• need to test if we get logs from the transport handler verbosely