LogicApps Stop-Azure-VMs-Parameter.ps1

param
(
    [parameter(Mandatory=$true)] 
    [String] $VMnames
)

    $ServicePrincipalConnection = Get-AutomationConnection -Name 'AzureRunAsConnection'

    $null = Add-AzureRmAccount `
        -ServicePrincipal `
        -TenantId $ServicePrincipalConnection.TenantId `
        -ApplicationId $ServicePrincipalConnection.ApplicationId `
        -CertificateThumbprint $ServicePrincipalConnection.CertificateThumbprint

    $Subscriptions = Get-AzureRmSubscription

    # Get a list of VMs which are powered on, has an email address tag and has an environment tag (Dev or Test)
    foreach ($Sub in $Subscriptions) {

    $null = Select-AzureRmSubscription -Subscription $Sub

    # Filter out the VMs for the current subscription
    $SubVMs = @()
    # Get all Azure VMs based ont eh current Azure subscription
    $AzureVMs = Get-AzureRmVM

    # Do a foreach against all the VMs provided in parameter - some aren't in the current subscription
    foreach($a in ($VMnames -split ', ')){

        # Check if the current VM in the parameter array exists in the current Azure subscription
        if($a -in $AzureVMs.name){
        $b = Get-AzureRmVM | ? {$_.Name -eq $a}
        $c = [psCustomObject]@{
        name = $b.Name
        ResourceGroupName = $b.ResourceGroupName
                }
            $SubVMs += $c
            }
        }
    Write-Output $SubVMs
    ForEach ($VM in $SubVMs)
    {
        Stop-AzureRmVM -Name $VM.Name -ResourceGroupName $VM.ResourceGroupName -Force
	}
    }