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"Killing" Containers - Solution

  1. Run Pod with a web service (e.g. httpd) - kubectl run web --image registry.redhat.io/rhscl/httpd-24-rhel7
  2. Verify the web service is running with the ps command - kubectl exec web -- ps
  3. Check how many restarts the pod has performed - kubectl get po web
  4. Kill the web service process -kubectl exec web -- kill 1
  5. Check how many restarts the pod has performed - kubectl get po web
  6. Verify again the web service is running - kubectl exec web -- ps

After you complete the exercise

  • Why did the "RESTARTS" count raised? - because we killed the process and Kubernetes identified the container isn't running properly so it performed restart to the Pod