Add EC2 Tag to Multiple Instances

Question

I am trying to add a new EC2 Tag with PowerShell to multiple instances at once. I have all of my instances tagged with the format

name : $Env_$Role_$Number

However, I failed to put a separate Environment: Production tag for each instance which I need now. I ran to following in PowerShell to get a list of the instances that I need in a table.

$ProdTag = New-Object Amazon.EC2.Model.Filter
$ProdTag.Name = "tag:Name"
$ProdTag.Values = "PROD*"
$Instances = New-Object Amazon.EC2.Model.Filter
$Instances.Name = "tag:resource-type"
$ProdTag.Values = "instance"
Get-EC2Tag -Filter ($ProdTag, $Instances)

This outputs the list of instances I want. How would I grab the ResourceType column, store it in an array and apply New-EC2Tag -tag (Name="tag: Environment, Value="Production:) to that array?

Answer 1

I realized that I could store Get-EC2Tag -Filter ($ProdTag, $Instances) as an object in Powershell: $ProdInstances = (Get-EC2Tag -Filter ($ProdFilter, $InstanceFilter)).ResourceID

Then I created a $ProdEnvTag object to apply Environment:Production as a tag to everything in the $ProdInstances object: $ProdInstances | ForEach-Object {New-EC2Tag -Resource $_ -Tag $ProdEnvTag} $ProdInstances | ForEach-Object {New-EC2Tag -Resource $_ -Tag $ProdEnvTag}