README.md

Alerting Rules Example

Overview

This example shows how to configure alert rules in Kyma and to define a new alert rule for AlertManager.

Prerequisites

• Kyma as the target deployment environment.

Installation

NOTE: You need access to the kyma-system Namespace to execute the following steps.

Configure a new alert

1. Create a ConfigMap for the alert-rule.

   kubectl apply -f deployment/alert-rule-configmap.yaml -n kyma-system

2. Run the port-forward command on the core-prometheus service to access the Prometheus dashboard.

   kubectl port-forward pod/prometheus-core-0 -n kyma-system 9090:9090

   Find the http-db-service-is-not-running rule here.

   As the http-db-service Deployment does not the exist, the alert is fired here.

Stop the alert from getting fired

To stop the alert from getting fired, create a Deployment as follows:

kubectl apply -f ../http-db-service/deployment/deployment.yaml

Cleanup

Run the following commands to completely remove the example and all its resources from the cluster:

1. Remove the http-db-service-is-not-running alert rule from the cluster.

kubectl delete cm -n kyma-system -l example=monitoring-alert-rules

2. Remove the http-db-service Deployment which stopped alerts firing.

kubectl delete -f ../http-db-service/deployment/deployment.yaml