如何在CloudFormation中同时定义和使用SSM参数？

Question

下面是一个SAM模板(与CloudFormation模板相同)：

Globals:
    Function:
        Environment:
            Variables:
                BAR: '{{resolve:ssm:myparam:1}}'
...
    MyParam:
        Type: "AWS::SSM::Parameter"
        Properties:
            Name: myparam
            Type: String
            Value: 'REPLACE_ME' # must be defined manually in the AWS Console

我无法部署此堆栈，因为：

FAILED. Reason: Parameters: [ssm:myparam:1] cannot be found.

当然，我正在堆栈…中创建这个参数。

如何引用在同一个模板中创建的SSM参数？

Answer 1

您试过通过Fn:GetAtt (!GetAtt MyParam.Value)访问变量吗？

Globals:
    Function:
        Environment:
            Variables:
                BAR: !GetAtt MyParam.Value
...
    MyParam:
        Type: "AWS::SSM::Parameter"
        Properties:
            Name: myparam
            Type: String
            Value: 'REPLACE_ME' # must be defined manually in the AWS Console