* Audit logs in sender package
* Fix casing and touch up a few key names
* Avoid logging entire alert struct
* Log configuration ID being applied
* Revert change to errorf rather than log
* Tune levels further and remove some redundancies
* Adjust logger naming and standardize log context
* Adjust logger naming in router
* Move log and get rid of dead error handling code
* Alerting: Sanitize invalid label/annotation names for external alertmanagers
Grafana's built-in Alertmanager supports both Unicode label keys and values; however, if using an external
Prometheus Alertmanager label keys must be compatible with their data model.
This means label keys must only contain ASCII letters, numbers, as well as underscores and match the regex
`[a-zA-Z_][a-zA-Z0-9_]*`.
Any invalid characters will now be removed or replaced by the Grafana alerting engine before being sent to
the external Alertmanager according to the following rules:
- `Whitespace` will be removed.
- `ASCII characters` will be replaced with `_`.
- `All other characters` will be replaced with their lower-case hex representation.
* Prefix hex replacements with `0x`
* Refactor for clarity
* Apply suggestions from code review
Co-authored-by: brendamuir <100768211+brendamuir@users.noreply.github.com>
Co-authored-by: brendamuir <100768211+brendamuir@users.noreply.github.com>
