write to text file on azure file share - powershell

Question

I would like to move a ps script to Azure to run as a runbook. It basically checks all new SharePoint sites and checks if they meet certain criteria, like enables version control if not set.
The script works like:
$sitesdonelist = "c:\log.txt"
$sitesdone = get-content -Path $sitesdonelist
foreach($sitecoll in $sitecollections) {
$currentsite = $sitecoll.Url
if ($sitesdone -inotcontains $currentsite) {
checksite
add-content -Path $sitesdonelist -Value $sitecoll.Url
}
}
I would like this code to work on Azure and part of this is to move the sites done list to an Azure file share and append the processed sites to it. So far I see two options and none of them seem right:
Download the file to $env:TEMP, append and upload on finish: I
will miss all sites done if something fails halfway
Download the file to $env:TEMP, append and upload after every site: would make the process slow and cause lot of unnecessary data load
Is there a better option? Can I write directly to a file on Azure file share from an Azure PowerShell runbook?

Answer 1

If you want to write something as log to a file in your Azure file share from Azure Automation runbook , pls try the PS command below :
$appid = "<your appliaction ID>"
$passwd = "<your Azure AD application Client secret>"
$tenantId= "<your tenant ID>"
$secpasswd = ConvertTo-SecureString -String $passwd -AsPlainText -Force
$cred = New-Object Management.Automation.PSCredential ($appid, $secpasswd)
Connect-AzAccount -ServicePrincipal -Credential $cred -Tenant $tenantId
$fileName = "<file name,including path>"
$storageacc = Get-AzStorageAccount -ResourceGroupName <resource group name> -Name <storage account name>
$file = (Get-AzStorageFile -ShareName qsfileshare -Context $storageacc.Context -Path $fileName)[0]
$content = "content you want to write"
$file.UploadTextAsync($file.DownloadTextAsync().GetAwaiter().GetResult() + $content).GetAwaiter().GetResult()
#get the content of the file that we write.
$file.DownloadTextAsync().GetAwaiter().GetResult()
Result in automation :
Previously , the content of the file is "hello!!!" only, as you can see ,the content has been written to the file . Hope it helps .