* Alerting: Rename remote.ExternalAlertmanager to remote.Alertmanager
* Alerting: Send alerts to the remote Alertmanager
* add ticker to readiness check, add tests
* use options when creating a new sender.ExternaAlertmanager
* unexport defaultMaxQueueCapacity
* delete unused defaultConfig field
* add debug log line when sending alerts to the remote alertmanager
* move and refactor readiness check
* update tests to not include defaultConfig
* Alerting: post alerts to the remote Alertmanager and fetch them
* fix broken tests
* Alerting: Add Mimir Backend image to devenv (blocks)
* add alerting as code owner for mimir_backend block
* Alerting: Use Mimir image to run integration tests for the remote Alertmanager
* skip integration test when running all tests
* skipping integration test when no Alertmanager URL is provided
* fix bad host for mimir_backend
* remove basic auth testing until we have an nginx image in our CI
* add integration tests for alerts
* fix tests
* change SendCtx -> Send, add context.Context to Send, fix CI
* add reover() for functions from the Prometheus Alertmanager HTTP client that could panic
* add TODO to implement PutAlerts in a way that mimicks what Prometheus does
* fix log format
* Remove Result field from AddDataSourceCommand
* Remove DatasourcesPermissionFilterQuery Result
* Remove GetDataSourceQuery Result
* Remove GetDataSourcesByTypeQuery Result
* Remove GetDataSourcesQuery Result
* Remove GetDefaultDataSourceQuery Result
* Remove UpdateDataSourceCommand Result
* Remove URL-based alertmanagers from endpoint config
* WIP
* Add migration and alertmanagers from admin_configuration
* Empty comment removed
* set BasicAuth true when user is present in url
* Remove Alertmanagers from GET /admin_config payload
* Remove URL-based alertmanager configuration from UI
* Fix new uid generation in external alertmanagers migration
* Fix tests for URL-based external alertmanagers
* Fix API tests
* Add more tests, move migration code to separate file, and remove possible am duplicate urls
* Fix edge cases in migration
* Fix imports
* Remove useless fields and fix created_at/updated_at retrieval
Co-authored-by: George Robinson <george.robinson@grafana.com>
Co-authored-by: Konrad Lalik <konrad.lalik@grafana.com>
* 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
* move fake FakeExternalAlertmanager to sender package
* move tests from scheduler to router
* update alerts router to have all fields private
* update scheduler tests to use sender mock
* Introduce AlertsRouter in the sender package, and move all fields and methods related to notifications out of the scheduler to this router.
* Introduce a new interface AlertsSender in the schedule package and replace calls of anonymous function `notify` inside the ruleRoutine to calling methods of that interface.
* Rename interface Scheduler in api package to ExternalAlertmanagerProvider, and replace scheduler with AlertRouter as struct that implements the interface.
