7.4

If you need to use nested blueprints in a scalable blueprint, you can manually draw dependencies
between components in your nested blueprint to create explicit dependencies that always trigger an
update.
Note When you publish a blueprint, software component data is treated like a snapshot. If you later
make changes to the software component's properties, only new properties are recognized by the
blueprint in which the software component exists. Updates to properties that existed in the software
component at the time you published the blueprint are not updated in the blueprint. Only properties that
are added after you have published the blueprint are inherited by the blueprint. However, you can make
changes to instances of the software component in blueprints in which the software component resides to
change that particular blueprint.
Table 3‑64. Provisioning Methods that Support Software
Machine Type Provisioning Method
vSphere Clone
vSphere Linked Clone
vCloud Director Clone
vCloud Air Clone
Amazon AWS Amazon Machine Image
Creating Property Bindings Between Blueprint Components
In several deployment scenarios, a component needs the property value of another component to
customize itself. You can bind properties of XaaS, machines, Software, and custom properties to other
properties in a blueprint.
For example, your software architect might modify property definitions in the life cycle scripts of a WAR
component. A WAR component might need the installation location of the Apache Tomcat server
component, so your software architect configures the WAR component to set the server_home property
value to the Apache Tomcat server install_path property value. As the architect assembling the blueprint,
you have to bind the server_home property to the Apache Tomcat server install_path property for the
Software component to provision successfully.
You set property bindings when you configure components in a blueprint. On the Blueprint page, you drag
your component onto the canvas and click the Properties tab. To bind a property to another property in a
blueprint, select the Bind checkbox. You can enter ComponentName~PropertyName in the value text
box, or you can use the down arrow to generate a list of available binding options. You use a tilde
character ~ as a delimiter between components and properties. For example, to bind to the property
dp_port, on your MySQL software component, you could type mysql~db_port. To bind to properties that
are configured during provisioning, such as the IP address of a machine or the host name of a Software
component, you enter _resource~ComponentName~PropertyName. For example, to bind to the
reservation name of a machine, you might enter
_resource~vSphere_Machine_1~MachineReservationName.
Configuring vRealize Automation
VMware, Inc. 519