createUiDefinition.json

{
  "handler": "Microsoft.Compute.MultiVm",
  "version": "0.1.2-preview",
  "$schema": "https://schema.management.azure.com/schemas/0.1.2-preview/CreateUIDefinition.MultiVm.json#",
  "parameters": {
    "basics": [
      {
        "name": "vmName",
        "type": "Microsoft.Common.TextBox",
        "label": "Name",
        "toolTip": "The name of the virtual machine.",
        "constraints": {
          "required": true,
          "regex": "^[a-zA-Z][a-zA-Z0-9-]{2,13}[a-zA-Z0-9]$",
          "validationMessage": "VM names must be between 3 and 15 characters long, and can contain only numbers, letters, and hyphens."
        }
      },
      {
        "name": "adminUsername",
        "type": "Microsoft.Compute.UserNameTextBox",
        "label": "User name",
        "toolTip": "Admin username for the virtual machines.",
        "osPlatform": "Windows"
      },
      {
        "name": "adminPassword",
        "type": "Microsoft.Compute.CredentialsCombo",
        "label": {
          "password": "Password",
          "confirmPassword": "Confirm password"
        },
        "toolTip": {
          "password": "Admin password for the virtual machines."
        },
        "osPlatform": "Windows"
      }
    ],
    "steps": [
      {
        "name": "infrastructureConfig",
        "label": "Settings",
        "subLabel": {
          "preValidation": "Configure additional settings",
          "postValidation": "Done"
        },
        "bladeTitle": "Settings",
        "elements": [
          {
            "name": "vmSize",
            "type": "Microsoft.Compute.SizeSelector",
            "label": "Virtual machine size",
            "toolTip": "The size of the virtual machine.",
            "recommendedSizes": [
              "Standard_F8s_v2",
              "Standard_F16s_v2",
              "Standard_F32s_v2",
              "Standard_F72s_v2"
            ],
            "constraints": {
              "required": true
            },
            "osPlatform": "Windows"
          }
        ]
      }
    ],
    "outputs": {
      "adminUsername": "[basics('adminUsername')]",
      "adminPassword": "[basics('adminPassword').password]",
      "vmSize": "[steps('infrastructureConfig').vmSize]",
      "vmName": "[basics('vmName')]",
      "location": "[location()]"
    }
  }
}