Delete Azure Deployments

delete-azure-deployments.ps1

# README
# This script will delete all deployments in an Azure resource group older than X Days
# You can use this script to count hom many deployments exist: Get-AzureRmResourceGroupDeployment -ResourceGroupName $resourceGroup  | measure

# Variables

$subscriptionName = '{{azure subscription name}}'
$resourceGroupName = '{{azure resource group name}}'
$daysOldToDelete = -150 
$concurrentJobs = 4

# START
 
# Login and Save Credentails

Write-Host "Authenticating against Azure"

$path = ".\azureprofile.json"
Login-AzureRmAccount
Save-AzureRmProfile -Path $path -Force
 
# Select the Subscription

Write-Host "Selecting Azure Subscription: $subscriptionName"

Select-AzureRmSubscription  $subscriptionName | Out-Null
 
# Get all the deployments then filter

Write-Host "Getting Deployments for '$resourceGroupName' older than '$daysOldToDelete' days"

$deployments = Get-AzureRmResourceGroupDeployment -ResourceGroupName $resourceGroupName
 
$deploymentsToDelete = $deployments | Where-Object { $_.Timestamp -lt ((get-date).AddDays($daysOldToDelete)) }
 
Write-Host "Deployments found: $($deployments.Length)"
Write-Host "Deployments to delete: $($deploymentsToDelete.Length)"

# Delete filterd deployments in parallel

$counter = 0
$start = Get-Date
[nullable[double]]$secondsRemaining = $null

foreach ($deploymentToDelete in $deploymentsToDelete) {
    $running = @(Get-Job | Where-Object { $_.State -eq 'Running' })
    if ($running.Count -ge $concurrentJobs) {
        $running | Wait-Job -Any | Out-Null

        # estimate the time remaining (we can only start do this when the jobs start to complete)
        $secondsElapsed = (Get-Date) - $start
        $secondsRemaining = ($secondsElapsed.TotalSeconds / $counter) * ($deploymentsToDelete.Count - $counter)
    }

    $counter++
    $percentComplete = (($counter / $deploymentsToDelete.count) * 100)

    $progressParameters = @{
        Activity = "Deleting Deploments"
        Status = "Deleting $($deploymentToDelete.DeploymentName)"
        PercentComplete = $percentComplete
    }

    if ($secondsRemaining) {
        $progressParameters.SecondsRemaining = $secondsRemaining
    }

    Write-Progress @progressParameters
    Write-Host $progressParameters.CurrentOperation

    Start-Job {
        param($resourceGroupName, $deploymentName, $path)
        Select-AzureRmProfile -Path $path
        Remove-AzureRmResourceGroupDeployment -ResourceGroupName $resourceGroupName -DeploymentName $deploymentName
    } -ArgumentList @($resourceGroupName, $deploymentToDelete.DeploymentName, $path) | Out-Null
}

# Wait for all jobs to complete and results ready to be received
Wait-Job * | Out-Null

# Process the results
foreach($job in Get-Job)
{
    $result = Receive-Job $job
    Write-Host $result
}

Remove-Job -State Completed