Upload a file to azure data lake storage using PowerShell

The code below works manually but what I'm trying to do is find a way I can run it in an automated way through a job and log in to my azure account also not expose the account key in the code.

any advice?

{Connect-AzAccount
Select-AzSubscription -SubscriptionId <subId>
$ctx = New-AzStorageContext -StorageAccountName <Accounttest> -UseConnectedAccount
$ctx = New-AzStorageContext -StorageAccountName <Accounttest> 
 -StorageAccountKey <accoutnKey>
$filesystemName = "DataFiles"
New-AzStorageContainer -Context $ctx -Name $filesystemName
# folder directory
$filesystemName = " DataFiles "
$dirname = "my-directory/"
New-AzDataLakeGen2Item -Context $ctx -FileSystem $filesystemName -Path $dirname -Directory

#Upload a file to a directory
$localSrcFile =  "upload2.txt"
$filesystemName = " DataFiles "
$dirname = "my-directory/"
$destPath = $dirname + (Get-Item $localSrcFile).Name
New-AzDataLakeGen2Item -Context $ctx -FileSystem $filesystemName -Path $destPath -Source $localSrcFile -Force
 
}