6.2

Table Of Contents
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Familiarize yourself with the basic concepts of defining and configuring component properties and
actions. See Chapter 12 Developing Application Services Components.
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To view examples about how to define an external service, select Library > External Services to
view the predefined services.
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Verify that an external service version is available in Application Services. See Create an External
Service in the Library.
Procedure
1 Open an existing external service version and click Edit.
2 For the Property Name and Description, define a variable and add an optional description.
The property name cannot begin with a digit.
3 To change the type, select a property type from the drop-down menu.
You cannot add types to the menu.
4 Enter the value to substitute for this property when the script runs.
For example, for a property called http_port, you might type 80 in this field.
Note For vCloud Director or vRealize Automation, if you add a value to the http_proxy, https_proxy,
or ftp_proxy property with service scripts that use the darwin_global.conf file as a file source,
when the script runs, these properties override any existing proxy information in the deployed
application. Amazon EC2 does not require a proxy to deploy an application.
If the property type is set to Computed, you cannot type a value.
If the Required check box is selected and the Overridable in Blueprint check box is not selected,
the property must have a value.
5 From the Auto-Bind Tags drop-down menu, click New to select an Auto-Bind type to add the Property
Descriptor tags to a property.
Note Tags designated only as Property Descriptor appear in the drop-down menu.
You can add multiple Auto-Bind tags.
For example, if the Auto-Bind type for the Apache 2.2.0 service appsrv_routes property is assigned
as Consume, and the Auto-Bind type for the vFabric tc Server 2.1.0 service JVM_ROUTE property is
assigned as Expose. The appsrv_routes property uses the JVM_ROUTE property values to
customize itself. To allow Auto-Bind to connect to these service properties, you can add the Servlet
Container and Route tags to the appsrv_routes and JVM_ROUTE properties, respectively. When you
create an application that includes the vFabric tc Server and Apache services, the properties Auto-
Bind to each other in the blueprint editor if there is a dependency between the two nodes.
Using Application Services
VMware, Inc. 131