Updated Section 18-02

Updated Section 18-02
Updated Service Principal creation script changed from Azure CLI Version 2.25.0

Author: stacksimplify

18-Azure-Container-Registry-ACR/18-02-ACR-not-attached-to-AKS-Schedule-to-NodePools/README.md

@@ -112,6 +112,36 @@ docker push $ACR_REGISTRY/$ACR_NAMESPACE/$ACR_IMAGE_NAME:$ACR_IMAGE_TAG
 - Review file: shell-script/generate-service-principal.sh
 - Update ACR_NAME with your container registry name
 - Update SERVICE_PRINCIPAL_NAME as desired
+### NEW SCRIPT - UPDATED ON 20-OCT-2021
+```sh
+#!/bin/bash
+# This script requires Azure CLI version 2.25.0 or later. Check version with `az --version`.
+
+# Modify for your environment.
+# ACR_NAME: The name of your Azure Container Registry
+# SERVICE_PRINCIPAL_NAME: Must be unique within your AD tenant
+ACR_NAME=acrdemo9ss
+SERVICE_PRINCIPAL_NAME=acr-sp-demo
+
+# Obtain the full registry ID for subsequent command args
+ACR_REGISTRY_ID=$(az acr show --name $ACR_NAME --query id --output tsv)
+
+# Create the service principal with rights scoped to the registry.
+# Default permissions are for docker pull access. Modify the '--role'
+# argument value as desired:
+# acrpull:     pull only
+# acrpush:     push and pull
+# owner:       push, pull, and assign roles
+SP_PASSWD=$(az ad sp create-for-rbac --name $SERVICE_PRINCIPAL_NAME --scopes $ACR_REGISTRY_ID --role acrpull --query password --output tsv)
+SP_APP_ID=$(az ad sp list --display-name $SERVICE_PRINCIPAL_NAME --query [].appId --output tsv)
+
+# Output the service principal's credentials; use these in your services and
+# applications to authenticate to the container registry.
+echo "Service principal ID: $SP_APP_ID"
+echo "Service principal password: $SP_PASSWD"
+```
+
+### OLD SCRIPT - NOT VALID - JUST FOR REFERENCE
 ```sh
 #!/bin/bash