Powershell Script to Remove Tags for ASG and associated instances - AWS Cloud

<#  

.SYNOPSIS  

Script to Remove Tags for ASG and associated instances by reading the ASG's from file

.FILE NAME

RemoveTags.ps1

#>

clear

$scriptDir = Split-Path -Parent $MyInvocation.MyCommand.Path

$Asg_FilePath = $scriptDir + "\ASG.txt"

$AutoScalingGroups = Get-Content $Asg_FilePath

foreach($AutoScalingGroup in $AutoScalingGroups)

{

    $Tag = New-Object Amazon.AutoScaling.Model.Tag

    $Tag.ResourceId = $AutoScalingGroup

    $Tag.ResourceType = "auto-scaling-group"

    $Tag.Key = "{Specify the Tag Key}"

    Remove-ASTag -Tag $Tag -Force

    "Removed Tag for ASG " + $AutoScalingGroup

    $Instances = (Get-ASAutoScalingGroup -AutoScalingGroupName $AutoScalingGroup).Instances

    foreach ($Instance in $Instances)

    {

        $tag = New-Object Amazon.EC2.Model.Tag

        $tag.Key = "{Specify the Tag Key}"

        Remove-EC2Tag -Resource $Instance.InstanceId -tag $tag -Force

        "Removed Tag for Instance " + $Instance.InstanceId

    }

}