amazon-web-services - Terraform EC2 实例导入 - 用户数据不同

Question

我正在尝试将现有的 EC2 实例导入 Terraform。我已经获取了 EC2 实例用户数据，并将其添加到我的 TF 配置文件中，例如

    user_data               = <<EOF
<powershell>
& $env:SystemRoot\System32\control.exe "intl.cpl,,/f:`"UKRegion.xml`""
& tzutil /s "GMT Standard Time" 
Set-Culture en-GB
</powershell>
EOF

资源导入正常，但是当我运行时 terraform plan我得到 TF 想要销毁并重新创建实例，作为 user_data '强制新资源'中的'更改'。

user_data: "946f756af0df239b19f86a72653e58dcc04c4b27" => "811599030dc713b18c3e35437a82b35095190a81" (forces new resource)

我尝试将用户数据从 EC2 控制台复制并粘贴到 TF 文件中，但这不起作用。这是可能吗？

Answer 1

根据这个 github issue ，看起来这是 terraform 如何将 user_data 解释为“计算”值的问题。似乎有解决办法。

• First run a plan/apply cycle with your plan command including the extra argument on your command line:
  -target=template_file.userdata-consul. This will tell Terraform to do the minimal work it needs to update the template file, which should
  leave your launch configuration untouched.
• Now run plan again, and since the template_file has now already been recreated it should interpolate the resolved template as expected into the user_data, and there should then be no diff because the "new" template rendering should be the same as the "old" one.