VMware Virtual Machine Computer Relationship Discovery

Community.VMware.Discovery.VirtualMachineComputerRelationship (Discovery)

PowerShell script that connects to SCOM to discover Virtual Machine Computer Relationships

Element properties:

Object Discovery Details:

Member Modules:

Source Code:

<Discovery ID="Community.VMware.Discovery.VirtualMachineComputerRelationship" Target="Community.VMware.Class.ResourcePool" Enabled="true" ConfirmDelivery="false" Remotable="true" Priority="Normal">

  <Category>Discovery</Category>

  <DiscoveryTypes>

    <DiscoveryRelationship TypeID="SVL!System.VirtualMachineContainsComputer"/>

  </DiscoveryTypes>

  <DataSource ID="DS" TypeID="Windows!Microsoft.Windows.TimedPowerShell.DiscoveryProvider">

    <IntervalSeconds>14400</IntervalSeconds>

    <SyncTime>01:40</SyncTime>

    <ScriptName>Community.VMware.Discovery.VirtualMachineComputerRelationship.ps1</ScriptName>

    <ScriptBody><Script>param($sourceId,$managedEntityId)



Function ExitPrematurely ($Message) {

	$discoveryData.IsSnapshot = $false

	$api.LogScriptEvent($ScriptName,1985,2,$Message)

	$discoveryData

	exit

}



Function LogScriptEvent {

	Param (

		

		#0 = Informational

		#1 = Error

		#2 = Warning

		[parameter(Mandatory=$true)]

		[ValidateRange(0,2)]

		[int]$EventLevel

		,

		

		[parameter(Mandatory=$true)]

		[string]$Message

	)



	$api.LogScriptEvent($ScriptName,1985,$EventLevel,$Message)

}



Function DefaultErrorLogging {

	LogScriptEvent -EventLevel 1 -Message ("$_`rType:$($_.Exception.GetType().FullName)`r$($_.InvocationInfo.PositionMessage)`rReceivedParam:`rsourceId:$sourceId`rmanagedEntityId:$managedEntityId`rvCenterServerName:$vCenterServerName")

}



$ScriptName = 'Community.VMware.Discovery.VirtualMachineComputerRelationship.ps1'

$api = new-object -comObject 'MOM.ScriptAPI'

$discoveryData = $api.CreateDiscoveryData(0, $sourceId, $managedEntityId)



Try {Import-Module OperationsManager}

Catch {DefaultErrorLogging}



Try {New-SCOMManagementGroupConnection 'localhost'}

Catch {DefaultErrorLogging}



Try {$MGconn = Get-SCOMManagementGroupConnection | Where {$_.IsActive -eq $true}}

Catch {DefaultErrorLogging}



If(!$MGconn){

	ExitPrematurely ("Unable to connect to the local management group")

}



Try {$VMobjs = Get-SCOMClass -Name 'Community.VMware.Class.VirtualMachine' | Get-SCOMClassInstance}

Catch {DefaultErrorLogging}



Try {$ComputerObjs = Get-SCOMClass -Name 'System.Computer' | Get-SCOMClassInstance}

Catch {DefaultErrorLogging}



ForEach ($VM in $VMobjs){

	

	Try {$MatchingComputerObj = $ComputerObjs | Where {$_.DisplayName -eq ($VM.'[Community.VMware.Class.VirtualMachine].VirtualMachineHostName'.Value)}}

	Catch {DefaultErrorLogging}

	If ($MatchingComputerObj){



		#Get Computer Class Type

		Try {$ClassType = Get-SCOMClass -Id ($MatchingComputerObj.LeastDerivedNonAbstractMonitoringClassId) | Select Name}

		Catch {DefaultErrorLogging}

		

		#If a Winodows Computer

		If ($ClassType.Name -eq 'Microsoft.Windows.Computer'){



			#Create Windows Computer Object for discovery

			$WindowsInstance = $discoveryData.CreateClassInstance("$MPElement[Name='Windows!Microsoft.Windows.Computer']$")

			$WindowsInstance.AddProperty("$MPElement[Name='Windows!Microsoft.Windows.Computer']/PrincipalName$", [string]$MatchingComputerObj.'[Microsoft.Windows.Computer].PrincipalName'.Value )

			

			#Create Virtual Machine object for discovery

			$VMinstance = $discoveryData.CreateClassInstance("$MPElement[Name='Community.VMware.Class.VirtualMachine']$")

			$VMinstance.AddProperty("$MPElement[Name='Community.VMware.Class.VirtualMachine']/VirtualMachineId$", [string]$VM.'[Community.VMware.Class.VirtualMachine].VirtualMachineId'.Value )

			$VMInstance.AddProperty("$MPElement[Name='Community.VMware.Class.vCenter']/vCenterServerName$",  [string]$VM.'[Community.VMware.Class.vCenter].vCenterServerName'.value )

			

			#Create Relationship (Virtual Machine Contains Computer)

			$rel1 =  $discoveryData.CreateRelationshipInstance("$MPElement[Name='SVL!System.VirtualMachineContainsComputer']$")

			$rel1.source = $VMinstance

			$rel1.target = $WindowsInstance

			$discoveryData.AddInstance($rel1)

		}

		ElseIf ($ClassType.Name -eq 'Microsoft.Unix.Computer'){



			#Create Unix Computer Object for discovery

			$WindowsInstance = $discoveryData.CreateClassInstance("$MPElement[Name='Unix!Microsoft.Unix.Computer']$")

			$WindowsInstance.AddProperty("$MPElement[Name='Unix!Microsoft.Unix.Computer']/PrincipalName$", [string]$MatchingComputerObj.'[Microsoft.Unix.Computer].PrincipalName'.Value )

			

			#Create Virtual Machine object for discovery

			$VMinstance = $discoveryData.CreateClassInstance("$MPElement[Name='Community.VMware.Class.VirtualMachine']$")

			$VMinstance.AddProperty("$MPElement[Name='Community.VMware.Class.VirtualMachine']/VirtualMachineId$", [string]$VM.'[Community.VMware.Class.VirtualMachine].VirtualMachineId'.Value )

			$VMInstance.AddProperty("$MPElement[Name='Community.VMware.Class.vCenter']/vCenterServerName$",  [string]$VM.'[Community.VMware.Class.vCenter].vCenterServerName'.value )

			

			#Create Relationship (Virtual Machine Contains Computer)

			$rel1 =  $discoveryData.CreateRelationshipInstance("$MPElement[Name='SVL!System.VirtualMachineContainsComputer']$")

			$rel1.source = $VMinstance

			$rel1.target = $WindowsInstance

			$discoveryData.AddInstance($rel1)

		}

		     

		#Can't determine Computer Class Type

		Else {

			$api.LogScriptEvent($ScriptName,1985,2,('Unable to map '+ $MatchingComputerObj.DisplayName +' to class '+ $ClassType.Name))

		}

	}

}

$discoveryData</Script></ScriptBody>

    <Parameters>

      <Parameter>

        <Name>sourceID</Name>

        <Value>$MPElement$</Value>

      </Parameter>

      <Parameter>

        <Name>managedEntityID</Name>

        <Value>$Target/Id$</Value>

      </Parameter>

    </Parameters>

    <TimeoutSeconds>300</TimeoutSeconds>

  </DataSource>

</Discovery>