Ansible AlertManager

This example runs Ansible EDA listening for AlertManager/Prometheus events and scaling a deployment automatically when getting out of memory.

Deploy

To run this demo, first you need the Prometheus Operator installed in the default namespace.

In the case of OpenShift, you can install it as any other operator (being in default namespace).

In the case of other Kubernetes implementations, follow https://prometheus-operator.dev/

With operator and up running, deploy all the pieces. Go to kubernetes folder and run:

First the application that is monitored:

kubectl apply -f 1-quarkus-monitor-kubernetes.yml

Second configure the application to be monitored:

kubectl apply -f 2-quarkus-monitor-servicemonitor.yaml

Then deploy the Ansible EDA:

kubectl apply -f 3-ansible-eda-debug-kubernetes.yaml

Finally, deploy AlertManager and Prometheus:

kubectl apply -f 4-alertmanager.yaml
kubectl apply -f 5-prometheus.yaml

Demo

Deployments creates also an OpenShift Route to access the service outside the cluster.

If you are using another Kubernetes implementation, just adapt the YAMLs to access the service.

By default, there is an alarm configured but not triggered until an endpoint on quarkus-monitor app is called.

curl http://quarkus-monitor-default.apps.openshift.sotogcp.com/hello/consume/50