amazon-web-services - 无法对 CloudFormation CommaDelimitedList 参数使用AllowedPattern

Question

请注意，此问题与 Enforce AllowedPattern for parameter of type CommaDelimitedList in Cloudformation script 不同。 ，因为该问题是在 CommaDelimitedList 支持 AllowedPattern 之前编写的，因此显示的错误消息不同，并且接受的答案不再准确。

我有一个带有以下参数的 AWS CloudFormation 模板:

  Profiles:
    Description: The comma-separated list of active profiles, such as "dev,test".
    Type: CommaDelimitedList
    Default: ""
    AllowedPattern: '\w+'
    ConstraintDescription: Active profile identifiers must only use word characters, separated by commas.

latest documentation对于 AllowedPattern 说:

When applied to a parameter of type CommaDelimitedList, the pattern must match each value in the list.

我尝试调用 aws cloudformation deploy ... 并传递 Profiles 参数:

aws cloudformation deploy … --parameter-overrides … Profiles=dev,test

这也不起作用:

aws cloudformation deploy … --parameter-overrides … Profiles="dev,test"

事实上，即使这样也行不通!

aws cloudformation deploy … --parameter-overrides … Profiles=dev

AWS CLI 告诉我:

An error occurred (ValidationError) when calling the CreateChangeSet operation: Parameter Profiles failed to satisfy constraint: Active profile identifiers must only use word characters, separated by commas.

如果我删除AllowedPattern，它就会起作用:

  Profiles:
    Description: The comma-separated list of active profiles, such as "dev,test".
    Type: CommaDelimitedList
    Default: ""
    # AllowedPattern: '\w+'
    ConstraintDescription: Active profile identifiers must only use word characters, separated by commas.

如果我切换到 PowerShell 并尝试此操作，它也会失败:

aws cloudformation deploy … --parameter-overrides … Profiles=dev,test

在 PowerShell 中这也会失败:

aws cloudformation deploy … --parameter-overrides … 'Profiles=dev'

在 PowerShell 中这也失败了:

aws cloudformation deploy … --parameter-overrides '… Profiles=dev'

我开始认为，当从 CLI 调用时，AllowedPattern 只是被 CloudFormation 中的 CommaDelimitedList 破坏了。

Answer 1

事实上，CloudFormation 似乎只是被 AllowedPattern 与 CommaDelimitedList 组合所破坏。我打开AllowedPattern broken with CommaDelimitedList parameter #7750半年前了，还没修复。