Updating attach MI jumpbox Posh

samples/manage/azure-sql-db-managed-instance/attach-jumpbox/attachJumpbox.ps1

@@ -2,12 +2,20 @@ $parameters = $args[0]
 
 $subscriptionId = $parameters['subscriptionId']
 $resourceGroupName = $parameters['resourceGroupName']
+$virtualMachineName = $parameters['virtualMachineName']
 $virtualNetworkName = $parameters['virtualNetworkName']
+$managementSubnetName = $parameters['subnetName']
 $administratorLogin  = $parameters['administratorLogin']
 $administratorLoginPassword  = $parameters['administratorLoginPassword']
 
 $scriptUrlBase = $args[1]
 
+if($virtualMachineName -eq '')
+    $virtualMachineName = 'JumpboxVM'
+
+if($managementSubnetName -eq '')
+    $managementSubnetName = 'Management'
+
 function VerifyPSVersion
 {
     Write-Host "Verifying PowerShell version, must be 5.0 or higher."
@@ -157,12 +165,20 @@ SelectSubscriptionId -subscriptionId $subscriptionId
 
 $virtualNetwork = LoadVirtualNetwork -resourceGroupName $resourceGroupName -virtualNetworkName $virtualNetworkName
 
-$managementSubnetPrefix = CalculateNextAddressPrefix $virtualNetwork 28
+$subnets = $virtualNetwork.Subnets.Name
+If($false -eq $subnets.Contains($managementSubnetName))
+{
+        
+    $managementSubnetPrefix = CalculateNextAddressPrefix $virtualNetwork 28
 
-$virtualNetwork.AddressSpace.AddressPrefixes.Add($managementSubnetPrefix)
-Add-AzureRmVirtualNetworkSubnetConfig -Name Management -VirtualNetwork $virtualNetwork -AddressPrefix $managementSubnetPrefix | Out-Null
+    $virtualNetwork.AddressSpace.AddressPrefixes.Add($managementSubnetPrefix)
+    Add-AzureRmVirtualNetworkSubnetConfig -Name Management -VirtualNetwork $virtualNetwork -AddressPrefix $managementSubnetPrefix | Out-Null
 
-SetVirtualNetwork $virtualNetwork
+    SetVirtualNetwork $virtualNetwork
+    Write-Host "Added subnet into VNet." -ForegroundColor Green
+} else {
+    Write-Host "The subnet already exists in the VNet." -ForegroundColor Green
+}
 
 Write-Host
 
@@ -172,6 +188,8 @@ Write-Host "Starting deployment..."
 $templateParameters = @{
     virtualNetworkName = $virtualNetworkName
     managementSubnetPrefix  = $managementSubnetPrefix
+    managementSubnetName  = $managementSubnetName
+    virtualMachineName  = $virtualMachineName
     administratorLogin  = $administratorLogin
     administratorLoginPassword  = $administratorLoginPassword
 }

samples/manage/azure-sql-db-managed-instance/attach-jumpbox/azuredeploy.json

@@ -32,15 +32,25 @@
             "metadata": {
                 "description": "Enter password."
             }
+        },
+        "virtualMachineName": {
+            "type": "string",
+            "metadata": {
+                "description": "VM name."
+            }
+        },
+        "managementSubnetName": {
+            "type": "string",
+            "metadata": {
+                "description": "VM subnet name."
+            }
         }
     },
     "variables": {
-        "managementSubnetName": "Management",
-        "virtualMachineName": "JumpBox",
         "virtualMachineSize": "Standard_B2s",
-        "networkInterfaceName": "nicJumpBox",
-        "publicIPAddressName": "ipJumpBox",
-        "networkSecurityGroupName": "nsgJumpBox",
+        "networkInterfaceName": "[concat('nic', parameters('virtualMachineName'))]",
+        "publicIPAddressName": "[concat('ip', parameters('virtualMachineName'))]",
+        "networkSecurityGroupName": "[concat('nsg', parameters('virtualMachineName'))]",
         "scriptFileUri": "https://raw.githubusercontent.com/Azure/azure-quickstart-templates/master/201-sqlmi-new-vnet-w-jumpbox/installSSMS.ps1"
     },
     "resources": [
@@ -54,7 +64,7 @@
             ],
             "properties": {
                 "osProfile": {
-                    "computerName": "[variables('virtualMachineName')]",
+                    "computerName": "[parameters('virtualMachineName')]",
                     "adminUsername": "[parameters('administratorLogin')]",
                     "adminPassword": "[parameters('administratorLoginPassword')]",
                     "windowsConfiguration": {
@@ -130,7 +140,7 @@
                         "name": "ipconfig1",
                         "properties": {
                             "subnet": {
-                                "id": "[resourceId('Microsoft.Network/virtualNetworks/subnets', parameters('virtualNetworkName'), variables('managementSubnetName'))]"
+                                "id": "[resourceId('Microsoft.Network/virtualNetworks/subnets', parameters('virtualNetworkName'), parameters('managementSubnetName'))]"
                             },
                             "privateIPAllocationMethod": "Dynamic",
                             "publicIpAddress": {