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Cloudaware applications support cascades, meaning that all related objects will be cascadingly attached once a resource is attached to the application. For example, once you attach an AWS EC2 Instance, all corresponding EBS Volumes or Network Interfaces will also be attached.
Considerations:
When selecting an object to attach to a Cloudaware application, check if another object is above it in the hierarchy that can be connected first. For example, it's better to attach AWS ELB Load Balancer than related instances, it's better to attach AWS Elastic Beanstalk Application than AWS Elastic Beanstalk Environment, and it's always better to attach URLs.
Try to minimize manual attachments. For example, there is a logic for selecting objects that need to be attached to a specific application. Implementing that logic in an auto-attachment process is much better because Cloudaware will keep track of new assets that comply with the defined logic. If you still need to add some objects manually, attach only truly static resources.