aws-cloudformation - AWS Cloudformation 输出模板

Question

我创建了一个 CFT 模板，每次执行云形成时，我应该在输出中收到 5 个不同的用户名

示例

Output

1st attempt - <a href="https://stackoverflow.com/cdn-cgi/l/email-protection" class="__cf_email__" data-cfemail="47332234336a23352e31226a777607223f262a372b226924282a" rel="noreferrer noopener nofollow">[email protected]</a>
2nd attempt - <a href="https://stackoverflow.com/cdn-cgi/l/email-protection" class="__cf_email__" data-cfemail="b3c7d6c0c79ed7c1dac5d69e8381f3d6cbd2dec3dfd69dd0dcde" rel="noreferrer noopener nofollow">[email protected]</a>
upto 5 attempts - <a href="https://stackoverflow.com/cdn-cgi/l/email-protection" class="__cf_email__" data-cfemail="b3c7d6c0c79ed7d6c1dac5d68386f3d6cbd2dec3dfd69dd0dcde" rel="noreferrer noopener nofollow">[email protected]</a>

Again on 6th attempt it should go back to <a href="https://stackoverflow.com/cdn-cgi/l/email-protection" class="__cf_email__" data-cfemail="a1d5c4d2d58cc5d3c8d7c48c9190e1c4d9c0ccd1cdc48fc2cecc" rel="noreferrer noopener nofollow">[email protected]</a>

"Outputs" : {
      "Username" : {
       "Description" : "Appcito Cafe UserName",
       "Value" :  { "Fn::Join" : [ "", [ "testdrive-[dynamic(01-05)]@example.com"]]}
      },    

任何人都可以帮忙处理示例模板输出吗？

Answer 1

我不知道 CloudFormation 有任何内置功能来支持基于现有值的循环值。您有几种选择来解决此问题:

1. 在每次调用时将电子邮件地址(或仅前缀)作为参数传递
2. 创建一个包含此逻辑的自定义资源。您可以使用 Lambda 函数，该函数可以根据模板的当前值轻松循环这些值。 See more information on custom resources.您应该能够将模板中的现有值传递到此函数中，以使其迭代到下一个值并将其传回。