Powershell script to delete file from subfolder from blob container - azure

I am trying to delete file from specific folder like from full or diff in blob container but unable to do.
Container_name and then there are two folders full and diff and I want to delete file from full only.
Please help.
$context = New-AzureStorageContext -StorageAccountName "storage_name" -StorageAccountKey "key"
$blobs= Get-AzureStorageBlob -Container "container_name" -blob *DIFF*.bak -Context $context
foreach ($blob in $blobs)
{
$modifieddate = $blob.LastModified
Write-Host $modifieddate
if ($modifieddate -ne $null)
{
$howold = ([DateTime]::Now - [DateTime]$modifieddate.LocalDateTime)
if ($howold.TotalDays -ge 5)
{
Remove-AzureStorageBlob -Blob $blob.Name -Container "container_name" -Context $context
Write-Host $blob.Name
}
}
}

If you want to use Azure PowerShell to delete blobs from one subfolder in one container, you can use the following script :
$StorageAccountKey=" "
$StorageAccountName=" "
$ContainerName=" "
$Token = $null
$Total = 0
$MaxCount=5000
$context = New-AzStorageContext -StorageAccountName $StorageAccountName -StorageAccountKey $StorageAccountKey
do
{
$Blobs = Get-AzStorageBlob -Container $ContainerName -MaxCount $MaxCount -ContinuationToken $Token -Context $context -Prefix "your fodler name"
if($Blobs.Length -le 0) { Break;}
$Token = $Blobs[$blobs.Count -1].ContinuationToken;
foreach($blob in $blobs){
Remove-AzStorageBlob -Blob $blob.Name -Container $ContainerName -Context $context
}
}
While ($Token -ne $null)
Update
I use the latest version Azure Az module to do a test.

Related

Powershell script to download file with current date as filename from Azure blob - Download log file and Remove the Downloaded content from blob

I have PowerShell script which downloads the file with current date as filename from Azure blob. But How to get the log file of the process and how to remove the file which is downloaded from Azure blob through script. Could someone help me in this, Please.
Example.
app_09102021.txt
app_10102021.txt
app_11102021.txt
Below is the script.
$container_name = '$XXX'
$destination_path = 'D:\test'
$Ctx = New-AzStorageContext $ZZZZ -StorageAccountKey $CCVCVCVCV
[Net.ServicePointManager]::SecurityProtocol = [Net.SecurityProtocolType]::Tls12
$Listblobs = 'app_{0:ddMMyyyy}.txt' -f (Get-Date)
# Just download that blob
Get-AzStorageBlobContent -Context $Ctx -Container $container_name -Blob $Listblobs -Destination $destination_path
I have tested in my environment to download the blobs and delete by using below cmd and its successfully downloaded and got removed from Azure as well .
$container_name = 'testaj'
$destination_path = 'C:\Users\Desktop\test'
$Ctx = New-AzStorageContext 'accountname' -StorageAccountKey 'accountkeyrA=='
[Net.ServicePointManager]::SecurityProtocol = [Net.SecurityProtocolType]::Tls12
$Listblobs ='app_{0:ddMMyyyy}.txt' -f (Get-Date)
$blob = Get-AzStorageBlobContent -Context $Ctx -Container $container_name -Blob $Listblobs -Destination $destination_path -ErrorAction SilentlyContinue
if($blob -ne $Null)
{
Write-Host ("The File $Listblobs has been downloaded to $destination_path")
Write-Host ("Proceeding to delete the downloaded file from $container_name in Azure!!!")
Remove-AzStorageBlob -Container $container_name -Blob $Listblobs -Context $Ctx
Write-Host ("deleted file from $Listblobs in Azure!!!")
}
else{
write-Host ("The file does not exit")
}
Here is the Output for downloaded and deleted file from blob:
If the file got deleted then it will be something like below:
For more information please refer this MS DOC: Monitoring Azure Blob Storage
UPDATE:
I am looking for the solution to search & match the date with today's
date in filename, not sorting by last modified date/time.
Tried with the below code to download all the blobs with todays date for e.g abc_04012022,app_04012022 and delete them from Azure
PS Script :-
$container_name = 'test'
$destination_path = 'C:\Users\Desktop\test'
$Ctx = New-AzStorageContext 'accountname' -StorageAccountKey 'accountkey=='
[Net.ServicePointManager]::SecurityProtocol = [Net.SecurityProtocolType]::Tls12
$latestBlob = Get-Date -UFormat '%d%m%Y'
$bloblist = Get-AzStorageBlob -Container $container_name -Context $Ctx |select -Property Name
foreach($item in $bloblist){
if($item.Name -match $latestBlob){
Write-Output "Here is the blobs"
$blob = Get-AzStorageBlobContent -Context $Ctx -Container $container_name -Blob $item.Name -Destination $destination_path -ErrorAction SilentlyContinue
if($blob -ne $Null)
{
Write-Output ("The File $item.Name has been downloaded to $destination_path")
Write-Output ("Proceeding to delete the downloaded file from $container_name in Azure!!!")
Remove-AzStorageBlob -Container $container_name -Blob $item.Name -Context $Ctx
Write-Output ("deleted file from $item.Name in Azure!!!")
}
else{
write-Output ("The file does not exit")
}
}
}
Screenshot for reference:

Get-AzStorageBlob - Specific Folder

I have the following script to delete files older than 35 days of age.
How can I make it work only on a particular folder? I'm not sure how to incorporate the $FolderName into the Get-AzStorageBlob command as I can't see any specific switches to use.
$StorageAccountName = "#"
$StorageAccountKey = "#"
$ContainerName = "container"
$CleanupOlderThan35Days = [DateTime]::UtcNow.AddDays(-35)
$FolderName = "folder"
$Ctx = New-AzStorageContext -StorageAccountName $StorageAccountName -StorageAccountKey $StorageAccountKey
Get-AzStorageBlob -Container "$ContainerName" -Context $Ctx | Where-Object { $_.LastModified.UtcDateTime -lt $CleanupOlderThan35Days } |Remove-AzStorageBlob
You could use -prefix to filter the "folder" like this -Prefix $FolderName/, note you should add the suffix / in the prefix parameter.
For example,
$StorageAccountName = "xx"
$StorageAccountKey = "xx"
$ContainerName = "sss"
$CleanupOlderThan35Days = [DateTime]::UtcNow.AddDays(-35)
$FolderName = "test"
$Ctx = New-AzStorageContext -StorageAccountName $StorageAccountName -StorageAccountKey $StorageAccountKey
Get-AzStorageBlob -Container "$ContainerName" -Context $Ctx -Prefix $FolderName/ | Where-Object { $_.LastModified.UtcDateTime -lt $CleanupOlderThan35Days } |Remove-AzStorageBlob
The result with your partial command,

How to copy files from one container to another containers fits equally in all dest containers according to size using powershell

I have one container in blob of storage account in azure contains different folder having files of different sizes.
In other side, in same storage account, I have 10 different containers.
I have to copy these files from source container to destination 10 containers but the condition is the files should be equally distributed to all the containers.
I have tried below so far
$key = "abcdxyz"
# declaring the azure context
$context = New-AzStorageContext -StorageAccountName abcd -StorageAccountKey $key
#Getting the data from the blob
$bacdata = Get-AzStorageContainer -Name sourcecontainer* -Context $context | Get-AzStorageBlob
$15=$bacdata | where{$_.Name -like "sourcecontainer1*"} | where{$_.LastModified -gt (get-date).adddays(-1)}
Here is the powershell script to do it:
#Server side storage copy
$SourceStorageAccount = "sourceAccountName"
$SourceStorageKey = "sourceAccountAPIKey"
$DestStorageAccount = "destinationAccountName"
$DestStorageKey = "destinationAccountAPIKey"
$SourceStorageContext = New-AzureStorageContext -StorageAccountName $SourceStorageAccount -StorageAccountKey $SourceStorageKey
$DestStorageContext = New-AzureStorageContext -StorageAccountName $DestStorageAccount -StorageAccountKey $DestStorageKey
$Containers = Get-AzureStorageContainer -Context $SourceStorageContext
foreach($Container in $Containers)
{
$ContainerName = $Container.Name
if (!((Get-AzureStorageContainer -Context $DestStorageContext) | Where-Object { $_.Name -eq $ContainerName }))
{
Write-Output "Creating new container $ContainerName"
New-AzureStorageContainer -Name $ContainerName -Permission Off -Context $DestStorageContext -ErrorAction Stop
}
$Blobs = Get-AzureStorageBlob -Context $SourceStorageContext -Container $ContainerName
$BlobCpyAry = #() #Create array of objects
#Do the copy of everything
foreach ($Blob in $Blobs)
{
$BlobName = $Blob.Name
Write-Output "Copying $BlobName from $ContainerName"
$BlobCopy = Start-CopyAzureStorageBlob -Context $SourceStorageContext -SrcContainer $ContainerName -SrcBlob $BlobName -DestContext $DestStorageContext -DestContainer $ContainerName -DestBlob $BlobName
$BlobCpyAry += $BlobCopy
}
#Check Status
foreach ($BlobCopy in $BlobCpyAry)
{
#Could ignore all rest and just run $BlobCopy | Get-AzureStorageBlobCopyState but I prefer output with % copied
$CopyState = $BlobCopy | Get-AzureStorageBlobCopyState
$Message = $CopyState.Source.AbsolutePath + " " + $CopyState.Status + " {0:N2}%" -f (($CopyState.BytesCopied/$CopyState.TotalBytes)*100)
Write-Output $Message
}
}
Overall concept would be similar , just change the function aas per the Az CLI.
here is the copy command in Az CLI
az storage blob copy start
You can find more details here.
https://learn.microsoft.com/en-us/cli/azure/storage/blob/copy?view=azure-cli-latest#az-storage-blob-copy-start
Hope it helps.
how to copy files from one folder in container to another folder?
method 1-azuresynapse>integrate>copydata tool>Built-in copy task>new connection>create connection>dataset>browse file>uncheck recursively>next >next>next
method 2-HOme>resource groups>data factory>review create>open azure data factory>ingest>select source and file>select destination >finish>check in container if file is transfered or not

Powershell function for modifying the ContentType of an object in Azure blob storage

I'm trying to write a function in Powershell that sets blobs in a specific container to a certain type, as they are always written with the type application/octet-stream which causes issues with downstream applications. I have written the below function but it returns the error 'ContentType' is a ReadOnly property.
I was wondering if there was any way around this? I know the property can be set manually in Azure Storage Explorer, however this is a daily task.
Function:
Function Set-ContentType {
Param (
[string]$accountName,
[string]$accessKey,
[string]$storageContainer
)
# Connect to blob storage and get blobs
$context = New-AzureStorageContext -StorageAccountName $accountName -StorageAccountKey $accessKey
$blobs = Get-AzureStorageBlob -Container $storageContainer -Context $context -Blob $fileMask
foreach ($blob in $blobs) {
if ($blob.ContentType -eq $genericMIME) {
$blob.ContentType = $targetMIME
}
}
}
So based on the link from the comments, please give this solution a try.
Function Set-ContentType {
Param (
[string]$accountName,
[string]$accessKey,
[string]$storageContainer
)
# Connect to blob storage and get blobs
$context = New-AzureStorageContext -StorageAccountName $accountName -StorageAccountKey $accessKey
$blobs = Get-AzureStorageBlob -Container $storageContainer -Context $context -Blob $fileMask
foreach ($blob in $blobs) {
if ($blob.ContentType -eq $genericMIME) {
$blob.Properties.ContentType = $targetMIME
$blob.SetProperties()
}
}
}
I have solved my own issue by writing an alternative upload script that defines the ContentType at the time of writing the blob:
Function UploadFile {
Param (
[string]$accountName,
[string]$accessKey
)
$context = New-AzureStorageContext -StorageAccountName $accountName -StorageAccountKey $accessKey
$files = Get-ChildItem $workingDir -Filter $fileMask
foreach ($file in $files) {
Set-AzureStorageBlobContent -File $file.FullName -Container $container -Properties #{"ContentType" = "$targetMIME"} -Context $context -Force
}
}

Azure PowerShell Download blob contents from container

I'm trying to download sme blob files from an azure storage account.
There are a mix of other containers and blockblobs in the parent container, I need to download just the blockblobs and not the other containers, I can't find a way of seperating them out, also I need to download some blobs from a conatiner within a container.
My code will download all the contents in the parent blob, including all sub containers.
$sub = "MySub"
$staccname = "straccname1234"
$key = "sdcsecurekeythinghere"
$ctx = New-AzureStorageContext -StorageAccountName $staccname `
-StorageAccountKey $key
$cont = "data\download\files.001" ##the container includes other cntainers and subcontainers
$dest = "C:\blb-Downloads"
Select-AzureSubscription -SubscriptionName $sub –Default
Set-AzureSubscription -Currentstaccname $staccname -SubscriptionName $sub
Get-AzureStorageBlob -Container $cont -Context $ctx
$blobs = Get-AzureStorageBlob -Container $cont -Context $ctx
$blobs | Get-AzureStorageBlobContent –Destination $dest -Context $ctx
There are approx 75 files in the parent blob and 123 files in data\downloads.
Using the newer Azure PowerShell Az module, you can use Get-AzStorageBlob to list all the block blobs from the container, then use Get-AzStorageBlobContent to download the blobs.
As already shown by #George Wallace, we can use Where-Object or its alias ? to filter block blob types.
Demo:
$resourceGroup = "myResourceGroup"
$storageAccount = "myStorageAccount"
$container = "myContainerName"
$destination = "./blobs"
# Create destination directory if it doesn't exist
if (-not (Test-Path -Path $destination -PathType Container)) {
New-Item -Path $destination -ItemType Directory
}
# Get storage account with container we want to download blobs from
$storageAccount = Get-AzStorageAccount -Name $storageAccount -ResourceGroupName $resourceGroup
# Get all BlockBlobs from container
$blockBlobs = Get-AzStorageBlob -Container $container -Context $storageAccount.Context
| Where-Object {$_.BlobType -eq "BlockBlob"}
# Download each blob from container into destination directory
$blockBlobs | Get-AzStorageBlobContent -Destination $destination -Force
Can you not just run the following and limit it to BlockBlobs only?
Get-AzureStorageBlob -Container $cont -Context $ctx | ? {$_.BlobType -eq "BlockBlob"}
This works for me
$storageaccountname = "jawadtestsaacc"
$sastoken = ""
$ContainerName = "access"
$Ctx = New-AzStorageContext -StorageAccountName $storageaccountname -SasToken $sastoken
Get-AzStorageBlob -Container "$ContainerName" -Blob "Az.json" -Context $Ctx | Get-AzStorageBlobContent
or
Get-AzStorageBlobContent -Container "$ContainerName" -Blob "Az.json" -Context $Ctx

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