vRA7 to vRO Extensibility Magic Secrets Revealed Part 2

In Part 1 we went over the basic architecture of vRA to vRO extensibility, in this guide we will walk through a simple hello world example.


  • Part 1 read and understood
  • vRealize Automation 7 at least advanced installed and configured
  • At least one reservation with a static ip pool
  • At least one blueprint successfully provisioning, I am using CentOS7 in my example.
  • The sample workflow package downloaded from here

Let’s get started!

Open a web browser to your vRealize automation appliance FQDN and click the vRealize Orchestrator Client

Login to the vRealize Orchestartor client

Login with the default user or an SSO user that you have setup.

Verify that the vRA and vCenter Plugins are working and configured properly

  1. Change the view to Run
  2. Click on the Plugins Tab
  3. Browse the vRealize Automation Infrastructure Plugin
  4. Browse the vRealize Automation Plugin
  5. Browse the vCenter Plugin

Install the sample vRA to vRO workflow that you downloaded earlier

  1. Change the view to Design
  2. Click the Workflow package tab
  3. Click Import Package
  4. Browse to the package you downloaded earlier

Now click import

Verify the workflow was imported

  1. Change view to run
  2. Click the workflows tab
  3. Browse to the vRA 7 EB Get Custom Properties Example

Now let’s edit this workflow to make it do something

  1. Click the workflow to highlight it
  2. Now click edit

Let’s create a few out parameters

  1. Click the Schema Tab
  2. Click the Out tab
  3. Click the create output parameter icon

Now click Create parameter/attribute in workflow

Now let’s create the parameters we need

We are going to create two out parameters:




Your list should look like this

Now let’s add some code to convert the custom properties to attributes in vRO

  1. Click the scripting tab
  2. Enter the following lines
//Get custom properties from vRA and store in an attribute
System.log('Getting the custom properties needed') ;
var vmname = machine.get("name") ;
var ipaddress = vCACVmProperties.get("VirtualMachine.Network0.Address") ;
var myscript =  vCACVmProperties.get("myscript") ;

Now let’s create a scriptable task to work with those custome properties we captured

Drag and drop a scriptable task

Name the scriptable task

  1. Highlight the scritable task
  2. Click Info tab
  3. Enter a description for this task


Add the in paramaters

myscript and ipaddress

Create a new out parameter

  1. Create an out attribute named mynewscript

Enter the following code

What we are doing is combining the myscript text (we will create this as a custom property in vRA later) with the ipaddress that we get from vRA when the VM is provisioned.

Now let’s add the run script in guest workflow

  1. Drag and drop the Run Script in Guest workflow as shown
  2. Click Setup

Promote the Workflow Parameters

  1. Click to reset all bindings to Value
  2. Change myscript to mynewscript
  3. Click Promote

Now we need to get the VM name into the vm attribute

  1. Drag and drop the Get Virtual Machines by Name workflow as shown
  2. Click setup

NOTE: This is so is because the vm attribute is not a sctrig it is a vRO type VC:VIrtual Machine

Promote the workflow Parameters

  1. Click Value
  2. Change the name to vmname
  3. Click promote

Now change the output of vms to an attribute

  1. Change to outputs
  2. Highlight vms
  3. Click move to attribute

Let’s create another scriptable task

  1. Click the Schema Tab
  2. Drag and drop a new scriptable task
  3. Click the Info tab
  4. Name it Convert to VC:VM

Add the in parameter

  1. Click the in tab
  2. add vms attribute and click ok

Add the out attribute

  1. Click the out tab
  2. Add the vm attribute and click ok

Create the scriptable task

  1. Click the scriptable task tab
  2. Enter the text as shown
//convert array to vc:virtualmachine
System.log('Converting VMs array to VM object') ;
vm=vms[0] ;
System.log('Found VM = ' + vm) ;

Validate your workflow

Set your required attributes

  1. Click the general tab
  2. scroll down to attributes
  3. set the username for the VM your provisioning
  4. set the password
  5. enter bash for linux or bat or powershell for Windows
  6. enter a timeout, I used 10 seconds
  7. enter refresh time, I used 5 seconds
  8. enter a working directory, I used /tmp

Now rename your workflow and save it

  1. Click the general tab
  2. Change the workflow name
  3. Click Save and close

Now let’s setup vRA

Remember sharing is caring!

13 Replies to “vRA7 to vRO Extensibility Magic Secrets Revealed Part 2”

  1. Pingback: vRA7 to vRO Extensibility Magic Secrets Revealed Part 1 – VMtoCloud.com

  2. Really great blog(s) to get familiar with vRA/ Orchestrator handling!

    I tried to download and import the workflow package however get an IOException (not a valid package file, dunes-meta-inf is missing!) I am using vRO 7.2 from vRA 7.2 installation.

    Any idea?


  3. Using vR) 7.01 and see the same error “IOException (not a valid package file, dunes-meta-inf is missing!”. Can you double check your package.
    – Huy

  4. Hi Ryan. Looking to work trough this as it is exactly how I need to learn this stuff. Like the other 2 commentors, I can’t import the package as I get the same error. any chance to get a new export?
    thanks much

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