Example app is available at https://github.com/raintank/grafana-plugin-example

* Clone plugin repo git@github.com:raintank/grafana-plugin-example.git

* Modify grafana.ini (or custom.ini if your developing Grafana locally)

```ini
[plugin.external-test]
path = /<the_path_were_you_cloned_it>/grafana-plugin-example
```