Alerts

What You Will Do¶

This is Part 1 of a multi-part, self-paced quick start exercise. In this part, you will create a custom blueprint and apply it on your cluster. Next you will simulate an error condition on your cluster to see how the platform monitors, generates and centrally aggregates alerts.

Step 1: Create Blueprint¶

Navigate to the project in your Org where the cluster is located.
Select Infrastructure -> Blueprint -> New Blueprint

Blueprint

Name appropriately -> click Save

Blueprint

Choose the appropriate option show in below screenshot.

Blueprint

Scroll down to go to "Managed System Add-Ons" Section
Select the check box "Monitoring & Alerting" -> click "Save Changes"

Blueprint

Step 2: Apply Blueprint to the cluster¶

Go back to Infrastructure -> Cluster and click the gear icon on the right side of the page -> Click "Update Blueprint"

Blueprint

Select the newly created blueprint "alertmanager-blueprint" and version -> click "Save and Publish"

Blueprint

Wait for the alertmanager-blueprint to sync

Blueprint

Observe no Alerts

Blueprint

Step 3: Simulate a Failure Condition¶

Go to Application -> Workloads -> Click on " New Workload" -> Select "Create New Workload"

Alert

Choose appropriate name and select options as shown in screenshot below -> Click " Continue" to go to the Upload Tab

Alert

On the Upload Tab -> click " Choose File"
Upload the yaml below yaml file and click -> " Save And Go To Placement"

Alert

  apiVersion: apps/v1
  kind: Deployment
  metadata:
    name: nginx-deployment
  spec:
    selector:
      matchLabels:
        app: nginx
    replicas: 2 # tells deployment to run 2 pods matching the template
    template:
      metadata:
        labels:
          app: nginx
      spec:
        containers:
        - name: nginx
          image: nginx-error:1.14.2
          ports:
          - containerPort: 80

On the Placement tab -> Select the Checkbox with cluster name -> Click " Save and Go To Publish" -> then Click " Publish"

Alert

In a few minutes, the "visibility and monitoring" add-on deployed on the cluster by the platform will automatically detect the error condition and generate an alert.

Go back to Infrastructure -> Cluster, Click -> "Alerts" to check the Alerts:

Important

Alerts will be automatically cleared by the platform if it determines that the error condition is not detected anymore.

Recap¶

Congratulations! At this point, you have successfully simulated an error condition with a workload on your managed cluster and used the platform to centrally monitor and aggregate the alerts.