telemetry

telemetry records OpenTelemetry metrics of connections with the global meter provider configured in the top level telemetry section.

telemetry:
  collector: otel-collector:4317

server:
  tcp:
    middlewares:
      metrics:
        telemetry:
          name: postgres
    routers:
      db:
        entrypoints: [db]
        middlewares: [metrics, db_backend]

Field	Default	Description
name	middleware name	Value of the name attribute.

Metric	Type	Attributes	Description
turna.tcp.connections	counter	name, result	Handled connections. result is ok, error or rejected.
turna.tcp.active_connections	up-down counter	name	Open connections.
turna.tcp.connection.duration	histogram (s)	name, result	Connection duration.
turna.tcp.received	counter (By)	name	Bytes received from clients.
turna.tcp.sent	counter (By)	name	Bytes sent to clients.

Place it first in the router so rejected connections are counted too.