Machine blueprints determine a machine's attributes, the manner in which it is provisioned, and its policy and management settings. A tenant administrator or business group manager creates a vApp Component (vCloud) blueprint for each component machine to be included in the vApp (vCloud) blueprint. The vApp component blueprint must exist before the vApp blueprint can be configured.
The vApp component blueprint provides information for provisioning a vApp virtual machine in vCloud Air or vCloud Director. Provisioning settings include the following items:
Machine resource specifications
Build profiles and custom properties
Available machine operations
As you create a vApp blueprint, you specify the vApp component blueprints to include in that vApp blueprint. While you must specify a vApp template to clone from when you create a vApp blueprint, template specification is optional when you create a vApp component blueprint. You might choose to specify a template when you create a vApp component blueprint if there are one or more settings in the template that you want to use in your component blueprint, for example a specific endpoint, compute resource, and storage setting combination. You can either use the settings from the template or change those settings for your blueprint. Blueprint settings are used during provisioning. If you have more than one component in a vApp template, you can use one vApp component blueprint for all the components.
For more information about blueprints, see Foundations and Concepts.