Utilizing Azure Custom Script Extensions to maintain a custom PowerShell module across multiple servers - azure

Question

I'm trying to automate some tasks at work and someone gave me an idea that we could utilize Azure Custom Script Extensions to maintain a custom PowerShell module across multiple servers.
The script is located on our Azure DevOps, but I assume I could create a Pipeline that moves it to storage account after a pull request is completed.
However, my question is - how does Custom Script Extension work in the first place and would it be suitable for my needs, which are having an up-to-date PowerShell module available on multiple servers?

Answer 1

Were you able to find the answer on your question?
As I know, after the Custom Script Extension is installed the script will be executed once.
Below code snippet shows how you could deploy Custom Script Extension on Multiple VMs:
$CustomerScriptExtension = "yourCSEName"
$AllVMs = Get-AzureRMVM #get all VMs
$CntOfVMs = 0;
foreach($vm in $AllVMs)
{
try
{
$CntOfVMs = $CntOfVMs + 1
Write-Host "VMCount:" $CntOfVMs
#Get the VM details of that instance
$vmDetails = Get-AzureRmVM -ResourceGroupName $vm.ResourceGroupName -Name vm.Name
#Check if already an extension exists of type Custome Script Extension
$cseExtension = $vmDetails.Extensions | where { $_.Publisher -eq
"Microsoft.Compute" -and $_.VirtualMachineExtensionType -eq "CustomScriptExtension" }
# If Extension already exists remove the extension
if ($cseExtension)
{
#Remove the extension
Write-Host "Removing existing extension on VirtualMachine:" $vm.Name
Remove-AzureRmVMCustomScriptExtension -ResourceGroupName
$vm.ResourceGroupName -VMName $vm.Name -Name $cseExtension.Name
Write-Host "Completed Removal of existing extension on VirtualMachine:"
$vm.Name
}
try
{
Write-Host "Installing extenstion on VirtualMachine :" $vm.Name
Set-AzureRmVMCustomScriptExtension -ResourceGroupName
$vm.ResourceGroupName -VMName $vm.Name -Location $vm.Location -FileUri
PathToyourPowerShellCodeToUpdateVMGoesThere.ps1 -Run "InstalluptodatePowerShell.ps1" -name
$CustomerScriptExtension
Write-Host "completed Extension installation on VirtualMachine :"
$vm.Name
}
catch
{
Write-Host "Error installing extension on VirtualMachine :" $vm.Name
}
}
catch
{
Write-Host "Error in setting extension on VM:" $vm.Name
}
}