Register an application in Azure AD, generate and store a secret in Azure Key Vault using PowerShell
https://adrianthegreat.com/2021/04/03/Register-an-application-in-Azure-AD-generate-and-store-a-secret-in-Azure-Key-Vault-using-PowerShell/
https://adrianthegreat.com/2021/04/03/Register-an-application-in-Azure-AD-generate-and-store-a-secret-in-Azure-Key-Vault-using-PowerShell/