CloudFormation模板为DynamoDB GlobalTable添加标签报错如何解决

错误原因 #

你遇到的属性校验报错是因为AWS::DynamoDB::GlobalTable资源的顶层Properties配置中不支持直接定义Tags属性，标签必须配置在每个副本（Replicas）的属性项中。

修正后的单副本模板示例 #

AWSTemplateFormatVersion: 2010-09-09
Description: AWS CloudFormation Template to create global tables
Resources:
  globalTableExample:
    Type: 'AWS::DynamoDB::GlobalTable'
    Properties:
      TableName: sample1
      AttributeDefinitions:
        - AttributeName: PK
          AttributeType: S
      KeySchema:
        - AttributeName: PK
          KeyType: HASH
      BillingMode: PAY_PER_REQUEST
      StreamSpecification:
        StreamViewType: NEW_AND_OLD_IMAGES
      SSESpecification:
        SSEEnabled: true
        SSEType: "KMS"
      Replicas:
        - Region: us-east-1
          # 标签配置移动到对应副本配置项下
          Tags:
          - Key: Name
            Value: mytable
          - Key: Region
            Value: east

多副本公共标签复用方案 #

如果需要给所有副本配置相同的标签，避免重复编写代码，可以使用YAML锚点复用标签配置，示例如下：

AWSTemplateFormatVersion: 2010-09-09
Description: AWS CloudFormation Template to create global tables
# 定义公共标签锚点，可全局复用
x-common-tags: &common-tags
  - Key: Name
    Value: mytable
  - Key: Project
    Value: business-demo
Resources:
  globalTableExample:
    Type: 'AWS::DynamoDB::GlobalTable'
    Properties:
      TableName: sample1
      AttributeDefinitions:
        - AttributeName: PK
          AttributeType: S
      KeySchema:
        - AttributeName: PK
          KeyType: HASH
      BillingMode: PAY_PER_REQUEST
      StreamSpecification:
        StreamViewType: NEW_AND_OLD_IMAGES
      SSESpecification:
        SSEEnabled: true
        SSEType: "KMS"
      Replicas:
        - Region: us-east-1
          Tags: *common-tags
        - Region: us-west-2
          Tags: *common-tags

内容的提问来源于stack exchange，提问作者Chintamani