Self Healing

1. Open the Web Terminal then run this command.

   oc get pod

   

   Auto recovery
2. Look for the Pod with the name as quarkus-todo-app-xxxxxxx and it's status is Running. Please note/observe the RESTARTS value as well.

   

   Auto recovery
3. Run this command to get into the container. Don't forget to replace the POD_NAME with your quarkus-todo-app-xxxxxxx pod.

   oc rsh POD_NAME

4. Kill the Java application process with this command.

   kill 1

5. Observe the web console you'll see some animation.

   

   Auto recovery
6. Run this command again and observe the RESTARTS value. Basically, Kubernetes/OpenShift will keep checking the Pod status for us, if it's not ready, Kubernetes assumes that the application container might have some issue and it'll try to restart the the container automatically.

   oc get pod