ParallelRMRGVirtualMachines

AzureRGVMPowerGo.ps1

param(
[string]$power,
[string]$azureResourceGroup
)

if (!$power){Write-host "No powerstate specified. Use -Power start|stop"}
if (!$azureResourceGroup){Write-host "No Azure Resource Group specified. Use -azureResourceGroup 'ResourceGroupName'"}
    
# see if we already have a session. If we don't don't re-authN
if (!$AzureRMAccount.Context.Tenant) {
    $AzureRMAccount = Add-AzureRmAccount 
}

$SubscriptionName = Get-AzureRmSubscription | sort SubscriptionName | Select SubscriptionName
$TenantId = $AzureRMAccount.Context.Tenant.TenantId

Select-AzureRmSubscription -TenantId $TenantId
write-host "Enumerating VM's from AzureRM in Resource Group '"$azureResourceGroup "'"
$vms = Get-AzureRMVM -ResourceGroupName $azureResourceGroup  
$vmrunninglist = @()
$vmstoppedlist = @()


Foreach($vm in $vms)
    {
        $vmstatus = Get-AzureRMVM -ResourceGroupName $azureResourceGroup -name $vm.name -Status       
        $PowerState = (get-culture).TextInfo.ToTitleCase(($vmstatus.statuses)[1].code.split("/")[1])
          
        write-host "VM: '"$vm.Name"' is" $PowerState
        if ($Powerstate -eq 'Running')
        {
            $vmrunninglist = $vmrunninglist + $vm.name
        }
        if ($Powerstate -eq 'Deallocated')
        {
            $vmstoppedlist = $vmstoppedlist + $vm.name
        } 
    }

            
if ($power -eq 'start') {
    write-host "Starting VM's "$vmstoppedlist " in Resource Group "$azureResourceGroup       
    $vmstoppedlist | Invoke-Parallel -ImportVariables -NoCloseOnTimeout -ScriptBlock {
    Start-AzureRMVM -ResourceGroupName $azureResourceGroup -Name $_ -Verbose }
}
    

if ($power -eq 'stop') {
     write-host "Stopping VM's "$vmrunninglist " in Resource Group "$azureResourceGroup       
     $vmrunninglist | Invoke-Parallel -ImportVariables -NoCloseOnTimeout -ScriptBlock {
     Stop-AzureRMVM -ResourceGroupName $azureResourceGroup -Name $_ -Verbose -Force }
}
        

Absolutely.
Something like this where;

• myVMs.csv contains a column named vmname with your VM names

$vm_list = Import-Csv -Path .\myVMs.csv

foreach ($vm in $vm_list) {
Start-azureRMVM -Name $vm.vmname -force
}