Openstack 如何在userdata中将参数传递给powershell脚本

我的热模板如下所示：

windows_instance: 
  type: OS::Nova::Server 
  properties: 
  image: {get_param: imagever } 
  flavor: m1.large 
  key_name: test 
  networks: 
    - port: { get_resource: publicport } 
  user_data_format: RAW 
  user_data: 
    str_replace: 
     template: | 
       #ps1

        testps "$srcurl" "$dest"   -Verbose

     params:
      $dest: { get_param: target_location }
      $srcurl: { get_param: url_src }
      testps: { get_file: test1.ps1 }

test1.ps1：

param([String]$src, [String]$dest) 
Write-Host "url is:" + $src 
write-host "dest is:" + $dest

但cloudbase-init.log报告：executeuserdatascript C:\Program Files（x86）\cloudbase Solutions\cloudbase init\Python27\lib\site packages\cloudbaseinit\plugins\windows\userdatautils.py:58 2015-04-27 18:40:06.905 1788调试cloudbaseinit.plugins.windows.userdatautils[-]Userdata stderr:术语“param”无法识别为cmdlet、函数、脚本的名称

le或可操作程序。检查名称的拼写，或者是否包含路径

请验证路径是否正确，然后重试

在C:\Users\cloudbase init\appdata\local\temp\6ea2afb5-645b-430c-91a2-a67c3201f

5db.ps1:7字符：7

param <<<< ([String]$src, [String]$dest)
    CategoryInfo : ObjectNotFound: (param:String) [], CommandNotFou

ndException
    FullyQualifiedErrorId : CommandNotFoundException

---

param我根据示例使其工作：