vnet-peering.ps1

# Before running the script set the variables:
#
#   $adminUsername    : administrator username
#   $adminPassword    : adminsitrator password
#   $subscriptionName : name of the Azure subscription
#   $location         : Azure region when deployed the resource group
#   $rgName           : resource group name
#   $armTemplateFile  : ARM template file
#   tags:
#       $RGTagExpireDate : expire date
#       $RGTagContact    : contact email
#       $RGTagUsage      : deployment purpose
#
#

################# Input parameters #################
$location         = "westus"
$deploymentName   = "vnetpeering-dev"
$armTemplateFile  = "vnet-peering.json"
##
## tags
$RGTagExpireDate =((Get-Date).AddMonths(1)).ToString('yyyy-MM-dd')
$RGTagContact = 'user1@contoso.com' 
$RGTagAlias = 'user1' 
$RGTagUsage = 'test vnet peering' 

####################################################
$pathFiles      = Split-Path -Parent $PSCommandPath
$templateFile   = "$pathFiles\$armTemplateFile"

#Reading the resource group name from the file init.txt
If (Test-Path -Path $pathFiles\init.txt) {
        Get-Content $pathFiles\init.txt | Foreach-Object{
        $var = $_.Split('=')
        Try {New-Variable -Name $var[0].Trim() -Value $var[1].Trim() -ErrorAction Stop}
        Catch {Set-Variable -Name $var[0].Trim() -Value $var[1].Trim()}
        }
}
Else {Write-Warning "init.txt file not found, please change to the directory where these scripts reside ($pathFiles) and ensure this file is present.";Return}

if (!$azSubscriptionName) { Write-Host "variable $azSubscriptionName is null"; Exit }
$subscriptionName=$azSubscriptionName
write-host  "reading Azure subscription name $azSubscriptionName from the file init.txt " -ForegroundColor yellow


if (!$ResourceGroupName) { Write-Host "variable $ResourceGroupName is null"; Exit }
$rgName=$ResourceGroupName
write-host  "reading Resource Group name $ResourceGroupName from the file init.txt " -ForegroundColor yellow


$subscr=Get-AzSubscription -SubscriptionName $subscriptionName
Select-AzSubscription -SubscriptionId $subscr.Id

# Create Resource Group 
Write-Host (Get-Date)' - ' -NoNewline
Write-Host "Creating Resource Group $rgName " -ForegroundColor Cyan
Try {$rg = Get-AzResourceGroup -Name $rgName  -ErrorAction Stop
     Write-Host '  resource exists, skipping'}
Catch {$rg = New-AzResourceGroup -Name $rgName  -Location $location  
             Set-AzResourceGroup -Name $rgName `
             -Tag @{Expires=$RGTagExpireDate; Contacts=$RGTagContact; Owner=$RGTagAlias; Usage=$RGTagUsage} | Out-Null
}

$runTime=Measure-Command {
   write-host "running ARM template:"$templateFile
   New-AzResourceGroupDeployment  -Name $deploymentName -ResourceGroupName $rgName -TemplateFile $templateFile -Verbose 
}

write-host "runtime: "$runTime.ToString() -ForegroundColor Yellow