Configuring Custom Alarms on AOM

Process

1. Creating a Topic on SMN
2. Creating an Action Rule
3. Adding an Alarm Rule
   1. Event alarms: Generate alarms based on the events reported by clusters to AOM. For details about the events and configurations, see Adding an Event Alarm.
   2. Metric alarms: Generate alarms based on the thresholds of monitoring metrics, such as resource utilization of servers and components. For details about the metric thresholds and configurations, see Adding a Metric Alarm.

Creating a Topic on SMN

Simple Message Notification (SMN) pushes messages to subscribers through emails, SMS messages, and HTTP/HTTPS requests.

A topic is used to publish messages and subscribe to notifications. It serves as a message transmission channel between publishers and subscribers.

You need to create a topic and add a subscription to it. For details, see Creating a Topic and Adding a Subscription to a Topic.

After subscribing to a topic, confirm the subscription in the email or SMS message for the notification to take effect.

Creating an Action Rule

AOM allows you to customize alarm action rules. You can create an alarm action rule to associate an SMN topic with a message template. You can also customize notification content based on a message template.

For details, see Creating an Alarm Action Rule. When creating an action rule, select the topic that is created and subscribed to in Creating a Topic on SMN.

Adding an Event Alarm

The following uses NodeNotReady as an example to describe how to add an event alarm. You can add other alarms by referring to Table 1.

1. Log in to the AOM 2.0 console.
2. In the navigation pane, choose Alarm Management > Alarm Rules. Then, click Create Alarm Rule.
3. Enter basic information as prompted and configure other parameters as follows:

   For details about parameters, see Creating an Event Alarm Rule.

   • Rule Type: Select Event alarm rule.
   • Event Type: Select System.
   • Event Source: Select CCE.
   • Monitored Object: Filter monitored objects by notification type, event name, alarm severity, custom attribute, namespace, and cluster name.

     In this example, filter monitored objects by event name, select NodeNotReady, and set Trigger Mode to Immediate Trigger.

   • Alarm Mode: Select Direct alarm reporting.
   • Action Rule: Select the action rule created in Creating an Action Rule.

   Configure other parameters as required.

   In this example, the alarm settings are as follows:

   If a node in the cluster becomes abnormal, CCE reports the NodeNotReady event to AOM. AOM immediately notifies you through SMN based on the action rule.

   Figure 1 Adding an event alarm
   

4. Click Confirm.

   A successfully created alarm rule will be displayed in the rule list.

Adding a Metric Alarm

The following uses a PromQL statement as an example to describe how to add a metric alarm.

1. Log in to the AOM 2.0 console.
2. In the navigation pane, choose Alarm Management > Alarm Rules. Then, click Create Alarm Rule.
3. Configure parameters as follows:

   For details about parameters, see Creating a Metric Alarm Rule.

   • Rule Type: Select Metric alarm rule.
   • Configuration Mode: Select PromQL. You can enter native PromQL statements or use CCE templates.
   • Prometheus Instance: Select the AOM instance whose metrics are reported by Cloud Native Cluster Monitoring in the cluster.
   • Default Rule:
     • Custom: Enter a PromQL statement to configure the alarm rule. For example:

       kube_persistentvolume_status_phase{phase=~"Failed|Pending",cluster="${cluster_id}"} > 0

       ${cluster_id} indicates the cluster name. If a PV in the cluster is in the Failed or Pending state, an alarm will be generated.

     • CCEFromProm: Select an alarm template provided by CCE.
       Figure 2 Adding a metric alarm
       
   • Alarm Mode: Select Direct alarm reporting.
   • Action Rule: Select the action rule created in Creating an Action Rule.

   Configure other parameters as required.

4. Click Confirm.

   A successfully created alarm rule will be displayed in the rule list.