Update the ReadMe and Added role assignment for Cognitive Services OpenAI User in create_index script

Author: Vamshi-Microsoft

docs/CustomizingAzdParameters.md

@@ -22,6 +22,8 @@ By default this template will use the environment name as the prefix to prevent
 | `AZURE_ENV_EMBEDDING_MODEL_CAPACITY`   | integer | `80`                         | Sets the capacity for the embedding model deployment.                         |
 | `AZURE_ENV_LOG_ANALYTICS_WORKSPACE_ID` | string  | Guide to get your [Existing Workspace ID](/docs/re-use-log-analytics.md)  | Reuses an existing Log Analytics Workspace instead of creating a new one.     |
 | `AZURE_EXISTING_AI_PROJECT_RESOURCE_ID`    | string  | Guid to get your existing AI Foundry Project resource ID           | Reuses an existing AIFoundry and AIFoundryProject instead of creating a new one.  |
+| `AZURE_ENV_ACR_NAME`    | string  | `byocgacontainerreg`           | Sets the Azure Container Registry name  (allowed value: `byocgacontainerreg`)|
+| `AZURE_ENV_OPENAI_LOCATION`                 | string  | `<User selects during deployment>`                   | Sets the Azure region for OpenAI resource deployment.                    |
 
 
 ## How to Set a Parameter

infra/scripts/run_create_index_scripts.sh

@@ -83,6 +83,24 @@ fi
         echo "User already has the Azure AI User role."
     fi
 
+### Assign Cognitive Services OpenAI User role to the signed in user ###
+
+    # Check if the user has the Cognitive Services OpenAI User role
+    echo "Checking if user has the Cognitive Services OpenAI User role"
+    role_assignment=$(MSYS_NO_PATHCONV=1 az role assignment list --role 5e0bd9bd-7b93-4f28-af87-19fc36ad61bd --scope $aif_resource_id --assignee $signed_user_id --query "[].roleDefinitionId" -o tsv)
+    if [ -z "$role_assignment" ]; then
+        echo "User does not have the Cognitive Services OpenAI User role. Assigning the role."
+        MSYS_NO_PATHCONV=1 az role assignment create --assignee $signed_user_id --role 5e0bd9bd-7b93-4f28-af87-19fc36ad61bd --scope $aif_resource_id --output none
+        if [ $? -eq 0 ]; then
+            echo "Cognitive Services OpenAI User role assigned successfully."
+        else
+            echo "Failed to assign Cognitive Services OpenAI User role."
+            exit 1
+        fi
+    else
+        echo "User already has the Cognitive Services OpenAI User role."
+    fi
+
 ### Assign Search Index Data Contributor role to the signed in user ###
 
     echo "Getting Azure Search resource id"