Need assistance creating system sequence diagram based on the following activity diagram:

The goal is for the devops team to define infrastructure as code requirements to deploy an IaC tool, such as ansible to a cloud provider such as AWS or Azure. Once deployed the configuration would be valideted and the team would run tests based on performance metrics. Having trouble and need some guidance or example to get started in right direction. The end goal is needs to of one actor and $5$ unique devices$/$hardware exist that accurately parallel appropriate systems analysis but having difficulty figuring out how to visualize. $.$