deploy.json

{
  "$schema": "https://schema.management.azure.com/schemas/2015-01-01/deploymentTemplate.json#",
  "contentVersion": "1.0.0.0",
  "parameters": {
    "osType": {
      "type": "string",
      "allowedValues": [
        "linux",
        "windows"
      ],
      "defaultValue": "linux"
    },
    "vmName": {
      "type": "string",
      "minLength": 1
    },
    "scriptContent": {
      "type": "securestring",
      "defaultValue": ""
    },
    "scriptFileUri": {
      "type": "string",
      "defaultValue": ""
    },
    "storageAccountName": {
      "type": "string",
      "defaultValue": ""
    },
    "storageAccountKey": {
      "type": "securestring",
      "defaultValue": ""
    }
  },
  "variables": {
    "apiVersion": "[providers('Microsoft.Compute', 'virtualMachines/extensions').apiVersions[0]]",
    "emptyCommand": {},
    "nonEmptyCommand": {
      "commandToExecute": "[parameters('scriptContent')]"
    },
    "nonEmptyCommandStorageAccount": {
      "commandToExecute": "[parameters('scriptContent')]",
      "storageAccountName": "[parameters('storageAccountName')]",
      "storageAccountKey": "[parameters('storageAccountKey')]"
    },
    "emptyFileUri": {},
    "nonEmptyFileUri": {
      "fileUris": [
        "[parameters('scriptFileUri')]"
      ]
    },
    "settings": "[if(greaterOrEquals(length(parameters('scriptFileUri')), 1), variables('nonEmptyFileUri'), variables('emptyFileUri'))]",
    "command": "[if(greaterOrEquals(length(parameters('scriptContent')), 1), if(greaterOrEquals(length(parameters('storageAccountName')), 1), variables('nonEmptyCommandStorageAccount'), variables('nonEmptyCommand')), variables('emptyCommand'))]",
    "windowsName": "WindowsScriptExtension",
    "linuxName": "LinuxScriptExtension",
    "extensionName": "[if(equals(parameters('osType'), 'linux'), variables('linuxName'), variables('windowsName'))]",
    "windowsPublisher": "Microsoft.Compute",
    "linuxPublisher": "Microsoft.Azure.Extensions",
    "windowsType": "CustomScriptExtension",
    "linuxType": "CustomScript",
    "windowsTypeHandlerVersion": "1.9",
    "linuxTypeHandlerVersion": "2.0"
  },
  "resources": [
    {
      "apiVersion": "[variables('apiVersion')]",
      "type": "Microsoft.Compute/virtualMachines/extensions",
      "name": "[concat(parameters('vmName'), '/', variables('extensionName'))]",
      "location": "[resourceGroup().location]",
      "properties": {
        "publisher": "[if(equals(parameters('osType'), 'windows'), variables('windowsPublisher'), variables('linuxPublisher'))]",
        "type": "[if(equals(parameters('osType'), 'windows'), variables('windowsType'), variables('linuxType'))]",
        "typeHandlerVersion": "[if(equals(parameters('osType'), 'windows'), variables('windowsTypeHandlerVersion'), variables('linuxTypeHandlerVersion'))]",
        "autoUpgradeMinorVersion": true,
        "settings": "[variables('settings')]",
        "protectedSettings": "[variables('command')]"
      }
    }
  ],
  "outputs": {
    "scriptResult": {
      "type": "array",
      "value": "[if(equals(parameters('osType'), 'windows'),reference(concat('Microsoft.Compute/virtualMachines/', parameters('vmName'), '/extensions/', variables('extensionName'))).instanceView.substatuses,reference(concat('Microsoft.Compute/virtualMachines/', parameters('vmName'), '/extensions/', variables('extensionName'))).instanceView.statuses)]"
    }
  }
}