Labeling router or service to improve metrics

Hi,
We use traefik on kubernetes with the ingress.
Each ingresses and services have many labels.
But traefik metrics not propagate the labels on all metrics provider.

Is it possible to add labels on dynamic service or router config?
We already have an issue open here: https://github.com/containous/traefik/issues/3370
But no recent feedback.

If we can add those labels on the dynamic config, I can open a PR to implement it.

Regards