Nutanix AHV - Migrates specified virtual machines IP addesses to IPAM reservations to avoid two IPs to be reserved per server

MigrateVmIPsToIPAM.ps1

<#
.SYNOPSIS
Migrates specified virtual machines IP addesses to IPAM reservations to avoid two IPs to be reserved per server

.DESCRIPTION
Finds servers which have two reserved IP addresses,
removes old NIC and add new NIC with second IP (static IP inside of VM).

Can be run online but causes small network hickup for servers.

.PARAMETER vmNames
List of virtual machine names to be prosessed.

.EXAMPLE
Connect-NutanixCluster -Server "prism" -UserName "admin" -AcceptInvalidSSLCerts
.\MigrateVmIPsToIPAM.ps1 -vmNames "server1","server2"
#>
param (
	[string[]]$vmNames
)

If ((Get-NutanixCluster).IsConnected -ne $True) {
	throw "Connect cluster first using Connect-NutanixCluster cmdlet"
}

ForEach ($Name in $vmNames) {
	Write-Host "Processing server: $Name"
	$VM = Get-NTNXVM | Where-Object {$_.vmName -eq $Name}
	$VMip = $VM.ipAddresses[1]
	$OldNic = Get-NTNXVMNIC -Vmid $VM.vmId
	$NetworkUuid = $OldNic.networkUuid
	$MacAddress = $OldNic.macAddress

	If ($VMip -and $NetworkUuid -and $MacAddress) {
		$Task = Remove-NTNXVMNIC -Vmid $VM.vmId -Nicid $MacAddress
		while ((Get-NTNXTask -Taskid $Task.taskUuid).progressStatus -ne "Succeeded") {
			Write-Host "Waiting that old NIC is removed from VM"
			Start-Sleep -Seconds 10
		}

		$nicSpec = New-NTNXObject -Name VMNicSpecDTO
		$nicSpec.macAddress = $MacAddress
		$nicSpec.networkuuid = $OldNic.networkUuid
		$nicSpec.requestedIpAddress = $VMip
		$nicSpec.requestIp = $VMip

		$Task = Add-NTNXVMNic -Vmid $VM.vmId -SpecList $nicSpec
		while ((Get-NTNXTask -Taskid $Task.taskUuid).progressStatus -ne "Succeeded") {
			Write-Host "Waiting that new NIC is added to VM"
			Start-Sleep -Seconds 10
		}
	} Else {
		Write-Warning "Cannot find server static IP, network uuid or NIC MAC address"
	}
	Remove-Variable VM
	Remove-Variable VMip
	Remove-Variable OldNic
	Remove-Variable NetworkUuid
	Remove-Variable MacAddress
}