* Alerting: decapitalize log lines and use "err" as the key for errors
Found using (logger|log).(Warn|Debug|Info|Error)\([A-Z] and (logger|log).(Warn|Debug|Info|Error)\(.+"error"
* Alerting: Remove double quotes from matchers
With #38629 a new Alertmanager configuration object was introduced with `object_matchers`, it was meant to circumvent around the fact that Prometheus label names don't support a set of characters that Grafana needs to support for alerts, silences, matchers, etc. (with a common example being elasticsearch's `.`).
This new object does not include the label of sanitzation or validation that its Prometheus equivalent supports in `matchers` and therefore are semantically not equivalent.
This triggered the problem that when the migration is run, we use `matchers` as the object to populate in configuration for routing policies, but when the UI does its first save this object is transformed to `object_matchers`.
Matchers that were previously running just fine would immediately stop working as soon as the configuration is saved.
This problem surfaced with the introduction of #49952 where we stopped stripping double quotes from matchers (not just regex but _all_ of them).
* Add comment explaining rationale and future removal
Co-authored-by: Alex Weaver <weaver.alex.d@gmail.com>
* Alerting: Introduce an internal changelog
Please note that this is not intented to replace Grafana's "add to changelog" label. It is _mostly_ for internal consumption of the Alerting team that owns this part of Grafana.
* Fix markdown formatting
* Fix changelog entry
* Alerting: Accurately set value for prom-compatible APIs
Sets the value fields for the prometheus compatible API based on a combination of condition `refID` and the values extracted from the different frames.
* Fix an extra test
* Ensure a consitent ordering
* Address review comments
* address review comments
* Alerting: Remove internal labels from prometheus compatible API responses
* Appease the linter
* Fix integration tests
* Fix API documentation & linter
* move removal of internal labels to the models
The problem here is that without the orgID we ignore the lookup of the existing notification channel just before updating and end up failing the update because there is no channel available.