added prompt for DC properties

Author: Bill Liang

samples/features/azure-arc/deployment/kubeadm/ubuntu-single-node-vm/setup-controller.sh

@@ -36,6 +36,38 @@ then
     export DOCKER_PASSWORD=$AADC_PASSWORD
 fi
 
+
+# Propmpt for Arc Data Controller properties.
+#
+if [ -z "$ARC_DC_NAME" ]
+then
+    read -p "Enter a name for the new Azure Arc Data Controller: " dc_name
+    echo
+    export ARC_DC_NAME=$dc_name
+fi
+
+if [ -z "$ARC_DC_SUBSCRIPTION" ]
+then
+    read -p "Enter a subscription ID for the new Azure Arc Data Controller: " dc_subscription
+    echo
+    export ARC_DC_SUBSCRIPTION=$dc_subscription
+fi
+
+if [ -z "$ARC_DC_RG" ]
+then
+    read -p "Enter a resource group for the new Azure Arc Data Controller: " dc_rg
+    echo
+    export ARC_DC_RG=$dc_rg
+fi
+
+if [ -z "$ARC_DC_REGION" ]
+then
+    read -p "Enter a region for the new Azure Arc Data Controller (eastus or eastus2): " dc_region
+    echo
+    export ARC_DC_REGION=$dc_region
+fi
+
+
 set -Eeuo pipefail
 
 # This is a script to create single-node Kubernetes cluster and deploy Azure Arc Data Controller on it.
@@ -303,7 +335,13 @@ echo "Starting to deploy azdata cluster..."
 
 # Command to create cluster for single node cluster.
 #
-azdata arc dc create -n $CLUSTER_NAME -c azure-arc-kubeadm-private-preview --accept-eula $ACCEPT_EULA
+azdata arc dc config init -s azure-arc-kubeadm-private-preview -t azure-arc-custom --force
+azdata arc dc config replace --config-file azure-arc-custom/control.json --json-values '$.spec.dataController.displayName=$ARC_DC_NAME'
+azdata arc dc config replace --config-file azure-arc-custom/control.json --json-values '$.spec.dataController.subscription=$ARC_DC_SUBSCRIPTION'
+azdata arc dc config replace --config-file azure-arc-custom/control.json --json-values '$.spec.dataController.resourceGroup=$ARC_DC_RG'
+azdata arc dc config replace --config-file azure-arc-custom/control.json --json-values '$.spec.dataController.location=$ARC_DC_REGION'
+
+azdata arc dc create -n $CLUSTER_NAME -c azure-arc-custom --accept-eula $ACCEPT_EULA
 echo "Azure Arc Data Controller cluster created." 
 
 # Setting context to cluster.