在 cloudFormation 模板中引用 Secrets Manager 密钥

Question

我有一段 cloudFormation 代码

"dareMeXDevCloudwatchMissingPayoutsJob": {
      "Type": "AWS::Events::Rule",
      "DependsOn": [
        "xxx"
      ],
      "Properties": {
        "Description": "xxxxx)",
        "RoleArn": {
          "Fn::GetAtt": [
            "xxxxx",
            "Arn"
          ]
        },
        "Name": "xxxxx",
        "ScheduleExpression": "cron(0 8 ? * 6 *)",
        "State": "ENABLED",
        "Targets": [
          {
            "Arn": {
              "Fn::GetAtt": [
                "xxxxxxx",
                "Arn"
              ]
            },
            "Id": "xxxx",
            "Input": "{\"val1\":\"val1\",\"secretVal\":\"??????????????????\"}"
          }
        ]
      }
    }

我想要完成的事情是将 Secrets Manager 值传递给变量secretVal 我尝试通过将 SecretVal 值设置为 来做到这一点{{resolve:secretsmanager:{arn of secret}:SecretString}}，但随后在 cloudWatch 事件上我有 optput 类似{"val1": "val1", "secretVal": "{{resolve:secretsmanager:{arn of secret}:SecretString}}"}

例如，当我尝试将 Name 设置为 时{{resolve:secretsmanager:{arn of secret}:SecretString}}，一切都会按预期工作，但对于 Input 则不起作用。我做错了什么吗？或者也许还有其他方法将秘密值传递给 cloudWatch 事件主体？提前致谢！

Answer 1

@RobS 无论如何，这在我的用例中不起作用。目标是使用于处理用户请求的普通 api lambda 也可用于：

-基于固定的cron表达式定期调用

- 被自身调用，但在未来的某个时间点

这个密钥只是对最终用户的保护。当我得到 AWS 的响应时，这可以通过创建子 CloudFormation 堆栈来实现

父堆栈片段

"Resources": {

    "MySecretB": {
      "Type": "AWS::SecretsManager::Secret",
      "Properties": {
        "Name": "MySecretForAppA",
        "Description": "This secret has a hardcoded password in SecretString (use GenerateSecretString instead)",
        "SecretString": "{\"username\":\"MasterUsername\",\"password\":\"secret-password\"}"
      }
    },
    "Test": {
      "DependsOn" : "MySecretB",
      "Type": "AWS::CloudFormation::Stack",
      "Properties": {
        "Parameters": {
          "Key": {
            "Fn::Sub": ["${value1}", {
              "value1": "{{resolve:secretsmanager:MySecretForAppA:SecretString:username}}"
            }]
          }

        },
        "TemplateURL" : "https://s3.amazonaws.com/mybucketname/childstack.json "
      }
    }
  }

子堆栈片段

  "Parameters": {
        "Key":{
          "Type":"String"
        }
      },
      "Resources": {
        "ScheduledRule": {
            "Type": "AWS::Events::Rule",
            "Properties": {
                "ScheduleExpression": "rate(1 minute)",
                "Description": "ScheduledRule",
                "Targets": [
                    {
                        "Arn": "arn:aws:lambda:us-east-1:380574440275:function:LambdaFunction",
                        "Id": "TargetFunctionV1",
                        "Input": {"Fn::Sub": "{\"Input\": \"${Key}\"}"}
                    }
                ]
            }
        }
    }

就像你所说的passing a secret into a CW event is probably not a good idea，所以我刚刚制作了另一个 lambda 函数，最终用户无法使用它。只能从 cloudWatch 事件中调用它