OBSDOCS-1796: Improve troubleshooting monitoring issues: create new section about the AlertmanagerReceiversNotConfigured alert

Author: eromanova97

modules/monitoring-resolving-the-alertmanagerreceiversnotconfigured-alert.adoc

@@ -0,0 +1,13 @@
+// Module included in the following assemblies:
+//
+// * monitoring/troubleshooting-monitoring-issues.adoc
+
+:_mod-docs-content-type: REFERENCE
+[id="resolving-the-alertmanagerreceiversnotconfigured-alert_{context}"]
+= Resolving the AlertmanagerReceiversNotConfigured alert
+
+Every cluster that is deployed has the `AlertmanagerReceiversNotConfigured` alert firing by default. To resolve the issue, you must configure alert receivers.
+
+* For default platform monitoring, follow the steps in "Configuring alert notifications" in _Configuring core platform monitoring_.
+
+* For user workload monitoring, follow the steps in "Configuring alert notifications" in _Configuring user workload monitoring_.

observability/monitoring/troubleshooting-monitoring-issues.adoc

@@ -47,4 +47,13 @@ endif::openshift-dedicated,openshift-rosa,openshift-rosa-hcp[]
 * xref:../../support/getting-support.adoc#support-submitting-a-case_getting-support[Submitting a support case]
 
 // Resolving the KubePersistentVolumeFillingUp alert firing for Prometheus
-include::modules/monitoring-resolving-the-kubepersistentvolumefillingup-alert-firing-for-prometheus.adoc[leveloffset=+1]
+include::modules/monitoring-resolving-the-kubepersistentvolumefillingup-alert-firing-for-prometheus.adoc[leveloffset=+1]
+
+ifndef::openshift-dedicated,openshift-rosa,openshift-rosa-hcp[]
+// Resolving the AlertmanagerReceiversNotConfigured alert firing for Prometheus
+include::modules/monitoring-resolving-the-alertmanagerreceiversnotconfigured-alert.adoc[leveloffset=+1]
+[role="_additional-resources"]
+.Additional resources
+* xref:../../observability/monitoring/configuring-core-platform-monitoring/configuring-alerts-and-notifications.adoc#configuring-alert-notifications_configuring-alerts-and-notifications[Configuring alert notifications for default platform monitoring]
+* xref:../../observability/monitoring/configuring-user-workload-monitoring/configuring-alerts-and-notifications-uwm.adoc#configuring-alert-notifications_configuring-alerts-and-notifications-uwm[Configuring alert notifications for user workload monitoring]
+endif::openshift-dedicated,openshift-rosa,openshift-rosa-hcp[]