01add144b8
* 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