Need script to delete the old backup file from storage blob , the script need to run from managed instance - azure-sql-database

Question

Can anyone help me to get the script to remove the backup file older than 45 days from storage Blob container.
Actually i want to run the script in Managed instance ( PAAS) through SQL server agent job.
Please help me on this.

Answer 1

According this post.
I think you can modifier the PS script. Change $FromDate = ((Get-Date).AddDays(-6)).Date to $FromDate = ((Get-Date).AddDays(-45)).Date . The script is as follows:
#PowerShell Script to delete System Databases .bak files from Azure Block Blob
#-eq = equals
#-ne = not equals
#-lt = less than
#-gt = greater than
#-le = less than or equals
#-ge = greater than or equals
#Set All Variables
$YesterdayDate = ((Get-Date).AddDays(-1)).Date #Get Yesterday date
$FromDate = ((Get-Date).AddDays(-45)).Date #Get 6 Days back date from Today
$BlobType = "Pageblob"
$bacs = Get-ChildItem $location -Filter *.bak
$container="dwhdatabasesbackup"
$StorageAccountName="analytics"
$StorageAccountKey="xxxxxx"
$context = New-AzureStorageContext -StorageAccountName $StorageAccountName -StorageAccountKey $StorageAccountKey
$filelist = Get-AzureStorageBlob -Container $container -Context $context
#Foreach Loop With a Condition $_.LastModified.Date -eq $YesterdayDate to make Sure there was a File Uploaded Yesterday
foreach ($filein$filelist | Where-Object {$_.LastModified.Date -eq $YesterdayDate -and $_.BlobType -eq $BlobType -and ($_.Name -like "*.bak")})
{
$Yesterdayfile = $file.Name
if ($Yesterdayfile -ne $null)
{
$FileFullLength = $Yesterdayfile.Length
$FileNameWithoutDatePart = $Yesterdayfile.SubString(0, $FileFullLength-30)
Write-Output ("File Name Without Date Part: " +$FileNameWithoutDatePart)
#Foreach Loop With a Condition $_.LastModified.Date -lt $FromDate to Remove Files those are 5 Days Old
foreach ($filein$filelist | Where-Object {$_.LastModified.Date -lt $FromDate -and $_.BlobType -eq $BlobType -and ($_.Name -like "$FileNameWithoutDatePart*.bak")})
{
$removefile = $file.Name
$RemoveFileFullLength = $removefile.Length
$ModifiedDate = $file.LastModified.Date
if (($removefile -ne $null) -and ($RemoveFileFullLength -eq $FileFullLength))
{
Write-Output ("Remove File Name: ("+$removefile +") as Modified Date: ("+ $ModifiedDate +") of File is Older Than Date: ("+ $FromDate + ")")
}
}
}
}