This script is written in PowerShell and is used for managing Azure resources. It's designed to automate the process of creating an application registration in Azure Active Directory, granting it permissions to a Key Vault in Azure, and handling various checks and error scenarios along the way. Here's a breakdown:
-
Setting up Parameters and Preferences:
- It starts by defining mandatory parameters that need to be passed when the script is called:
$AppClientDisplayName
,$KeyVaultName
, and$ResourceGroupName
. $ErrorActionPreference = "Stop"
: This line sets the preference for how to handle errors in the script. "Stop" means that the script will stop executing as soon as there's an error.
- It starts by defining mandatory parameters that need to be passed when the script is called:
-
Checking Resource Group Existence:
- The script checks if the specified Azure Resource Group exists. If it doesn't, the script throws an error and stops execution.
-
Checking for Existing Application and Key Vault: