amazon-web-services - 模板的资源 block 中 Unresolved 资源依赖性 [DefaultSchedule]

Question

我正在使用 cloudformation 脚本来创建 AWS Data Pipeline。我已经根据文档创建了脚本，但我面临 1 个错误，即

Template validation error: Template format error: Unresolved resource dependencies [DefaultSchedule] in the Resources block of the template

这是我的脚本的资源部分:

Resources:
DataPipelineForS3Backup:
Type: AWS::DataPipeline::Pipeline
Properties:
  Name:
    Ref: S3BackupDataPipeline
  Description:
    Ref: S3BackupDataPipeline
  Activate: 'true'
  ParameterObjects:
  - Id: myAwsCliCommand
    Attributes:
    - Key: description
      StringValue: Dp command to run
    - Key: type
      StringValue: String
  ParameterValues:
  - Id: myAwsCliCommand
    StringValue:
      Ref: AwsCliCommand
  PipelineObjects:
  - Id: DefaultSchedule
    Name: Every 1 day
    Fields:
    - Key: type
      StringValue: Schedule
    - Key: period
      StringValue: 1 Day
    - Key: startDateTime
      StringValue: 2018-08-08T19:00:00
  - Id: Default
    Name: Default
    Fields:
    - Key: failureAndRerunMode
      StringValue: CASCADE
    - Key: type
      StringValue: Default
    - Key: resourceRole
      StringValue:
        Ref: S3BackupResourceRole
    - Key: pipelineLogUri
      StringValue:
        Ref: S3BackupDpLogUri
    - Key: role
      StringValue:
        Ref: S3BackupDpRole
    - Key: scheduleType
      StringValue: cron
    - Key: schedule
      StringValue:
        Ref: DefaultSchedule

谁能告诉我剧本是怎么回事？谢谢

Answer 1

首先，在使用 YAML 编写脚本时，您应该非常小心缩进以避免错误。它应该是这样的:

Resources:
  DataPipelineForS3Backup:
    Type: AWS::DataPipeline::Pipeline
    Properties:
      Name:
      ...

此外，据我了解，您正在尝试获取 PipelineObjects 之一的引用。为此，您应该使用 RefValue: DefaultSchedule

，而不是 Ref: DefaultSchedule

请参阅文档中的示例:https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-resource-datapipeline-pipeline.html#w2ab2c21c10d332c13