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无法在cloudformation的父模板中使用内部(子)模板的输出

amazon-cloudformation amazon-web-services

Hamed Minaee · 技术社区 · 9 年前

我试图在另一个应用程序中使用cloudformation堆栈的输出。我看了一些例子,比如 https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/walkthrough-crossstackref.html

这是我的:我有一个豆茎。json模板和我输出了我在参考资料部分创建的sampleEnvironment:

{
"AWSTemplateFormatVersion": "2010-09-09",
"Resources": {
    "sampleApplication": {
        "Type": "AWS::ElasticBeanstalk::Application",
        "Properties": {
            "Description": "AWS Elastic Beanstalk Sample Application",
            "ApplicationName": "app-name-test"
        }
    },
    "sampleApplicationVersion": {
        "Type": "AWS::ElasticBeanstalk::ApplicationVersion",
        "Properties": {
            "ApplicationName": {
                "Ref": "sampleApplication"
            },
            "Description": "AWS ElasticBeanstalk Sample Application Version",
            "SourceBundle": {
                "S3Bucket": "test-war",
                "S3Key": "deployment.war"
            }
        }
    },
    "sampleConfigurationTemplate": {
        "Type": "AWS::ElasticBeanstalk::ConfigurationTemplate",
        "Properties": {
            "ApplicationName": {
                "Ref": "sampleApplication"
            },
            "Description": "AWS ElasticBeanstalk Sample Configuration Template",
            "OptionSettings": [{
                    "Namespace": "aws:autoscaling:asg",
                    "OptionName": "MinSize",
                    "Value": "2"
                },
                {
                    "Namespace": "aws:autoscaling:asg",
                    "OptionName": "MaxSize",
                    "Value": "3"
                },
                {
                    "Namespace": "aws:elasticbeanstalk:environment",
                    "OptionName": "EnvironmentType",
                    "Value": "LoadBalanced"
                }
            ],
            "SolutionStackName": "64bit Amazon Linux 2017.03 v2.6.1 running Tomcat 8 Java 8"
        }
    },
    "sampleEnvironment": {
        "Type": "AWS::ElasticBeanstalk::Environment",
        "Properties": {
            "ApplicationName": {
                "Ref": "sampleApplication"
            },
            "Description": "AWS ElasticBeanstalk Sample Environment",
            "TemplateName": {
                "Ref": "sampleConfigurationTemplate"
            },
            "VersionLabel": {
                "Ref": "sampleApplicationVersion"
            },
            "EnvironmentName": "test-dep-env-name"
        }
    }
},
 "Outputs": {
    "applicationName11": {
       "Description": "The application chosen by user is :",
       "Value": {
        "Ref": "sampleEnvironment"
      },
   "Export" : {
    "Name" : {"Ref": "sampleEnvironment"} 
    }
 }
}

{
"Parameters": {
    "appName1": {
        "Description": "enter the app name",
        "Type": "String",
        "Default": "bn-test-jun"
    },
    "appEnv1": {
        "Description": "enter the app name",
        "Type": "String",
        "Default": "bn-test-jun"
    }
},
"Resources": {
    "CodeDeployEC2InstancesStack": {
        "Type": "AWS::CloudFormation::Stack",
        "Properties": {
            "TemplateURL": "https://s3.amazonaws.com/url...../beanstalk.json",
            "TimeoutInMinutes": "60"
        }
    },
    "myS3": {
        "Type": "AWS::S3::Bucket",
        "Properties": {
            "AccessControl": "PublicRead",
            "BucketName": "name of the environment returned as an output sth like Outputs.EnvironmentName"
        }
    }
}
 ,
 "Outputs":{
  "app":{
  "Description": "The application chosen by user is :",
     "Value": {
             "Fn::ImportValue" : "sampleEnvironment" 
     }
   }
 }
  }

现在你可以看到,在bucketName部分,我被卡住了。我需要指定在beanstalk中创建的环境的名称。json到将要创建的s3 bucket的名称。我该怎么做?

2 回复 | 直到 9 年前

Adrian Cantrill 9 年前

我已经在CFN课程论坛上回复了

https://acloud.guru/forums/aws-advanced-cloudformation/discussion/-KoAxjlT_ZtSAdrlg1lp/cannot_use_the_output_of_the_i

您不需要使用导出/导入值,因为您使用的是嵌套堆栈。

Raf 9 年前

导出参数需要有一个 Export property 其他堆栈可以访问:

要为跨堆栈引用导出的资源输出的名称。

笔记

以下限制适用于跨堆栈引用:

对于每个AWS帐户,导出名称在区域内必须是唯一的。

不能跨区域创建跨堆栈引用。

对于输出,导出的Name属性的值不能使用依赖于资源的Ref或GetAtt函数。类似地,ImportValue函数不能包含依赖于资源的Ref或GetAtt函数。

不能修改或删除另一个堆栈引用的输出值。

Fn::连接函数 .

所以添加

"Outputs": {
  "applicationName11": {
    "Description": "The application chosen by user is :",
    "Value": {
        "Ref": "sampleEnvironment"
    },
    "Export" : {
      "Name" : {
        "Fn::Join" : [ "-", [ { "Ref" : "AWS::StackName" }, {"Ref": "something"} ] ]
        }
     }
  }
}

然后,您可以在必要时通过 Fn::导入值 good example .