Get-EC2InstanceLatestSnapshot.ps1

<#
Gets the attached volumes of the specified instance and shows the latest snapshots for each volume
#>

# Case sensitive!
$InstanceName = 'AWS-IE-DC-01'

# Create an EC2 filter to find the instance with the corresponding Name tag (if you don't Name your instances, use another tag value)
$instanceFilter = New-Object Amazon.EC2.Model.Filter
$instanceFilter.Name = 'tag:Name'
$instanceFilter.Value = $InstanceName

# Get EC2 instance volumeIDs
$volumeIDs = (Get-EC2Instance -Filter $instanceFilter).Instances.blockdevicemappings.ebs.volumeid

# Use the volumeID(s) to get the latest snapshopID(s)

$snapshots = @()

# Get the latest snapshot for each volume
foreach ($volumeID in $volumeIDs) {
  $snapshotFilter = New-Object Amazon.EC2.Model.Filter
  $snapshotFilter.Name = 'volume-id'
  $snapshotFilter.value = $volumeID
  $snapshotId = Get-EC2Snapshot -Filter $snapshotFilter | Select-Object -First 1
  $snapshots += $snapshotId
}

Write-Output -InputObject $snapshots