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Table Of Contents
Follow these best practices when developing Software components.
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For a script to run without any interruptions, the return value must be set to zero (0). This setting
allows the agent to capture all of the properties and send them to the Software server.
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Some installers might need access to the tty console. Redirect the input from /dev/console. For
example, a RabbitMQ Software component might use the ./rabbitmq_rhel.py --setup-
rabbitmq < /dev/console command in its install script.
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When a component uses multiple life cycle stages, the property value can be changed in the
INSTALL life cycle stage. The new value is sent to the next life cycle stage. Action scripts can
compute the value of a property during deployment to supply the value to other dependent scripts.
For example, in the Clustered Dukes Bank sample application, JBossAppServer service computes
the JVM_ROUTE property during the install life cycle stage. This property is used by the
JBossAppServer service to configure the life cycle. Apache load balancer service then binds its
JVM_ROUTE property to the all (appserver:JbossAppServer:JVM_ROUTE) property to get the final
computed value of node0 and node1. If a component requires a property value from another
component to complete an application deployment successfully, you must state explicit dependencies
in the application blueprint.
Note You cannot change the content property value for a component that uses multiple life cycle
stages.
Create a Software Component
Configure and publish a Software component that other software architects, IaaS architects, and
application architects can use to assemble application blueprints.
Prerequisites
Log in to the vRealize Automation console as a software architect.
Procedure
1 Select Design > Software Components.
2
Click the Add icon ( ).
3 Enter a name and, optionally, a description.
Using the name you specified for your Software component, vRealize Automation creates an ID for
the Software component that is unique within your tenant. You can edit this field now, but after you
save the blueprint you can never change it. Because IDs are permanent and unique within your
tenant, you can use them to programmatically interact with blueprints and to create property bindings.
Configuring vRealize Automation
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