Pull model for CI/CD

Question

When reading this whitepaper, it suggested that a "pull model" can be used to detect changes in the target account.   What tools are recommended?   Is there any additional documentation or suggestions on this approach?

"In the pull model, tools within the target workload environments have the permissions necessary to
both detect changes of interest (for example, newly promoted artifacts or configuration changes) and to
deploy those changes locally within the workload environment.*

https://docs.aws.amazon.com/whitepapers/latest/organizing-your-aws-environment/deployments-ou.html

Accepted Answer

After researching some more, I now believe this means that an AWS CodePipeline exists in the workload account.   This AWS CodePipeline reacts to an Eventbridge event that occurs when something like AWS CodeArtifactory is updated.   This event then kicks off the pipeline (in the workload account) which handles the deployment.

Pull model for CI/CD

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