How to delete managed disk snapshot every 10 minutes

Question

I have the below script which I am using in order to delete snapshot older then 10 minutes and retain the snapshot that are not older then 10minutes, I have the below script but its not working as it suppose to, can anyone tell me whats being going wrong?

foreach($snapname in $snapshotnames)
{
    Get-AzureRmSnapshot -ResourceGroupName $rg  -SnapshotName $snapname |?{$_.Name -Like "*-Server1*"} | ?{($_.TimeCreated).ToString('yyyyMMdd') -lt ([datetime]::Now.AddMinutes(-10).tostring('yyyymmdd'))} | remove-azurermsnapshot -force
}

Answer 1

You should use [datetime]::UtcNow instead of [datetime]::Now and not use .tostring('yyyymmdd') .

So your command should be:

foreach($snapname in $snapshotnames)
{
    Get-AzureRmSnapshot -ResourceGroupName $rg -SnapshotName $snapname | ?{$_.Name -Like "*-Server1*"} | ?{($_.TimeCreated) -lt ([datetime]::UtcNow.AddMinutes(-10))} | remove-azurermsnapshot -force
}

My specific test command:

Get-AzureRmSnapshot -ResourceGroupName "<ResourceGroupName>" -SnapshotName "<SnapshotName>" | ?{($_.TimeCreated) -lt ([datetime]::UtcNow.AddMinutes(-10))} | remove-azurermsnapshot -force

Result screenshot: