How to delete Azure Managed Disk snapshots older than 7 days using Powershell?

Question

How to delete Azure Managed Disk snapshots older than 7 days using Powershell?

We take daily automated snapshots of the Managed Disks. The snapshots are named as: ['AppDisk_snapshot_AM' + "_" + (Get-Date -Format "yyyy-MM-dd")]

Snaphoshots are stored on "/subscriptions/[subscription ID]/resourceGroups/[Resource Group Name]/providers/Microsoft.Compute/snapshots"

I would like to know how can I delete these snapshots that are older than 7 days and keep the newest. Thank you.

Answer 1

According to your description, we can use this script to do this:

$rg = 'vm'
$snapshotnames = (Get-AzureRmSnapshot -ResourceGroupName $rg).name

foreach($snapname in $snapshotnames)
{
    Get-AzureRmSnapshot -ResourceGroupName $rg  -SnapshotName $snapname |?{$_.id -like '*AppDisk*'} | ?{($_.TimeCreated).ToString('yyyyMMdd') -lt ([datetime]::Today.AddDays(-7).tostring('yyyyMMdd'))} | remove-azurermsnapshot -force

}