Creating a Policy Assignment using Azure CLI

create-policy.ps1

# Login to Azure
az login --use-device-code

# Get Regerence to Resource Group
$rgId = az group show --name "az-policy-rg" --query "id" --output tsv

# Get Reference to the Azure Policy Definition
$policyName = az policy definition list --query "[?displayName == 'Audit use of classic virtual machines'].name"  --output tsv

# Assign the policy
az policy assignment create --name "Check for Classic VMs" --display-name "Check for Classic VMs" --policy $policyName --scope $rgId