vRealize Automation giving us the possibility to use Machine Prefixes to set VM name in deployment process, but what we can do when this is too small functionality.
Then we can use vRealize Orchestrator and Event Broker. Event Broker helps us to upgrade functionality vRealize Automation with workflow deployed in vRealize Orchestrator.
Event Broker is a solution which run element from workflow based on some conditions defined in vRA
In our case we want change VM name before it is deployed. So at the begining we need to creat blueprint and for connection between blueprint and Event Broker we need to add custom properties from list of available.
Extensibility.Lifecycle.Properties.VMPSMasterWorkflow32.Buildingmachine Extensibility.Lifecycle.Properties.VMPSMasterWorkflow32.DeactivateMachine Extensibility.Lifecycle.Properties.VMPSMasterWorkflow32.Disposing Extensibility.Lifecycle.Properties.VMPSMasterWorkflow32.MachineActivated Extensibility.Lifecycle.Properties.VMPSMasterWorkflow32.MachineProvisioned Extensibility.Lifecycle.Properties.VMPSMasterWorkflow32.RegisterMachine Extensibility.Lifecycle.Properties.VMPSMasterWorkflow32.Requested Extensibility.Lifecycle.Properties.VMPSMasterWorkflow32.UnprovisionMachine Extensibility.Lifecycle.Properties.VMPSMasterWorkflow32.WaitingToBuild
In this case we want to change name before everything so we will use extensibility VMPSMasterWorkflow32.Requested
Now we can create subscription which will be connectet with specific workflow.
Go to the Administration –> Events –> Subscriptions and click new
In first tab we need to select Event Topic. Every element providing to us something differen but in this case we will manage VM so we have to choose Machine Provisioning
At the condition tabe set the Requested Phase and PRE as a condition
In next tab we will choose our workflow from vRealize Orchestrator but first we need to create it.
So go to the vRO and create new workflow.
My workflow has 3 element. Two Scriptable Task and 1 Action from out of box actions.
First scriptable task is for collecting data from payload which is properties send by Event Broker
IN: payload(Properties)
OUT: virtualMachineId(string),Hostname(string),NewHostname(string)
var machine = payload.get("machine");
var virtualMachineId = payload.get("machine").get("id");
var machineProperties = machine.get('properties');
var node_name = machineProperties.get("node_name");
var Hostname = machine.get('name');
System.log(Hostname);
var NewHostname = Hostname + node_name
Action which is delivered by VM getting VirtualMachineEntityFromId wchich we collect from payload.
IN: virtualMachineId(string) ,host(vCAC:VCACHost)
OUT: actionResult(vCAC:Entity)
//Auto generated script, cannot be modified !
actionResult = System.getModule("com.vmware.library.vcac").getVirtualMachineEntityFromId(host,virtualMachineId);
And in last script we are doing actual change
IN: NewHostname(string) , virtualMachineEntity(vCAC:Entity)
OUT:
System.log(workflow.currentWorkflow.name+": Updating VirtualMachineName to '" + NewHostname + "'.");
//Get the properties of the vCAC VM Entity object (different than vCAC custom properties)
var vmEntityProps = virtualMachineEntity.getProperties();
//Change the VirtualMachineName property by deleting it and re-adding it
vmEntityProps.remove('VirtualMachineName');
vmEntityProps.put('VirtualMachineName', NewHostname);
//Update the Entity object to save the change
var hostId = virtualMachineEntity.hostId;
var modelName = virtualMachineEntity.modelName;
var entitySetName = virtualMachineEntity.entitySetName;
var entityIdString = virtualMachineEntity.keyString;
var actionResult = System.getModule("com.vmware.library.vcac").updateVCACEntity(hostId,modelName,entitySetName,entityIdString,vmEntityProps,null,null);
System.log(workflow.currentWorkflow.name+": Update of VirtualMachineName finished.");
All those element after succesfully run change VM name for that as we Request. So now we can add this workflow to our Event broker
In details setup the name and publish this subscription
