Allow Network Security Groups (NSGs) to be updated (instead of only overwritten) via ARM templates
Thanks for the feedback, we’ll review it and take into consideration incremental updates for NSG resource.
I think there should be an option to use an ARM template with a similar purpose as the "Add-AzureRmNetworkSecurityConfig" powershell cmdlet.
Currently, each new deployment completely overwrites the NSGs. It'd be nice to have the ability to optionally append rules instead.