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An Ansible Control Node uses AWS Key Management Service (KMS) to encrypt & decrypt secure strings. The Ansible Controller will fetch the remote instance, Private Key, from SSM Parameter Parameter and use it to connect it to the Target Node and execute the Ansible Playbook. Don't worry, in the Demo, all required steps automated through Cloudformation Template. A similar solution would work on other Cloud Native Services hosted on Azure, GCP, Windows VMs, Containers Technology, etc. as well as On-Prem Infrastructure.