**Problem** Add Graphana dashboard for Source metrics. **[Persona:](https://github.com/knative/eventing/blob/master/docs/personas.md)** Contributor **Exit Criteria** A manual test that allows to see Source metrics in graphana dashboards, decomposed by relevant tags.
Problem
Add Graphana dashboard for Source metrics.
Persona:
Contributor
Exit Criteria
A manual test that allows to see Source metrics in graphana dashboards, decomposed by relevant tags.