使用CloudFormation创建持久化Windows Spot Instance报错求助

算力阿峰

2026-8-9

问题解决：CloudFormation启动Windows Spot实例报错

错误原因

报错Property validation failure: [Value of property {/LaunchTemplateData} does not match type {Object}]的根本原因是LaunchTemplateData属性被错误定义为数组类型，CloudFormation要求该属性必须是对象类型（Object）。模板里在LaunchTemplateData:下添加了减号-，导致它被解析为数组，不符合属性类型要求。这个问题和Windows/Linux系统无关，纯粹是语法错误。

修正后的模板

移除LaunchTemplateData:下的减号-，将其内容改为对象格式：

Parameters:
  1InstanceType:
    Type: String
    Default: t2.small
    AllowedValues:
      - t2.small
      - m3.medium
      - m3.xlarge
      - i3.xlarge
  2SecurityGroup:
    Type: 'AWS::EC2::SecurityGroup::Id'
  3KeyName:
    Type: 'AWS::EC2::KeyPair::KeyName'
  4LatestAmiId:
    Type: 'AWS::SSM::Parameter::Value<AWS::EC2::Image::Id>'
    Default: /aws/service/ami-windows-latest/Windows_Server-2016-English-Full-Base

Resources:
  Ec2LaunchTemplate:
    Type: AWS::EC2::LaunchTemplate
    Properties:
      LaunchTemplateName: WindowsDesktop
      LaunchTemplateData:
        ImageId: !Ref 4LatestAmiId
        InstanceType: !Ref 1InstanceType
        SecurityGroups:
          - GroupId: !Ref 2SecurityGroup
        KeyName: !Ref 3KeyName
        InstanceMarketOptions:
          MarketType: spot
          SpotOptions:
            SpotInstanceType: persistent
            InstanceInterruptionBehavior: stop