As with any managed services or infrastructure services projects, maintaining the server inventory is very crucial. The server-inventory-file provides a one-stop checklist, that you can refer while you are on priority 1 bridge calls.
With traditional data center, it is easy to maintain server/infra inventory in an excel sheet. But it is not the same with cloud, because the infrastructure is so dynamic.
The only solution to this problem is Automation. I have written a powershell script just to do that.
Below is the link for the script:
Also, check out my blog for Azure Inventory:
If this blog helps even one person on this planet. The purpose of this blog is served.