is it possible to integrate CHAOS MONKEY tool in PEGA, if not is there any similar tool available in Pega
When you ask about ‘integrating’ it in Pega, it is not clear what is your ultimate goal. The Chaos Monkey tool (https://github.com/Netflix/chaosmonkey) randomly terminates virtual machine instances and containers that run inside of your production environment.
It can be used over AWS and Kubernetes, so using it for Pega environment would , in theory, be feasible however PegaCloud is the Pega managed environment therefore our system team would not allow clients to install anything so intrusive into CloudK nor any Cuttyhunk environments.
For our product quality and failover mechanism we use other resilience testing tools internally in the software development lifecycle, so from that perspective using this tool directly makes no sense.
Below all documentation about resiliency-testing :
https://docs.pega.com/bundle/platform/page/platform/devops/pegaunit-testing.html