* [Alerting]: forbid viewers for updating rules if viewers can edit
check for CanSave instead of CanEdit
* Clear ngalert tables when deleting the folder
* Apply suggestions from code review
* Log failure to check save permission
Co-authored-by: gotjosh <josue@grafana.com>
* Alerting: Allow the notifier to log
The notifier upstream code uses go-kit as its logging library. The
grafana specific logger is not compatible with this API. In this PR, I
have created a wrapper that implements io.Writer to make them
compatible.
* Alerting: Use a default configuration and periodically poll for new ones
Use a default configuration to make sure we always start the grafana
instance. Then, regularly poll for new ones.
I've also made sure that failures to apply configuration do not stop the
Grafana server but instead keep polling until it is a success.
* Alerting: Fetch configuration from the database and run a notification
instance
Co-Authored-By: Ganesh Vernekar <15064823+codesome@users.noreply.github.com>
