如何从cloudformation模板中的参数文件传递公钥？

Question

我定义了以下 Cloudformation 模板，我想在其中从参数文件传递公钥。“MyPublicKey”变量是字符串类型。我通过使用引用这个变量

EncodedKey !Ref MyPublicKey

在 PublicKeyConfig 下，如下所示。

AWSTemplateFormatVersion: "2010-09-09"

  Parameters:
    MyPublicKey:
      Type: String
      Description: 'Public key for some purpose'
      NoEcho: true

  Resources:
    CloudfrontPublicKey:
      Type: AWS::CloudFront::PublicKey
      Properties:
        PublicKeyConfig:
          CallerReference: 'some-caller-reference'
          Comment: 'Public key for signed url'
          Name: 'cloudfront-public-key'
          EncodedKey: !Ref MyPublicKey

    ...

parameter.json 文件看起来像这样。公钥在原始 .pem 文件中是多行，但我在字符串中有换行符的地方添加了新行字符“\n”。

[
  {
    "ParameterKey": "MyPublicKey",
    "ParameterValue": "-----BEGIN PUBLIC KEY-----\naaaa\nbbbb\n-----END PUBLIC KEY-----"
  },
]
 

当尝试更新堆栈时，我收到以下错误：

Invalid request provided: AWS::CloudFront::PublicKey

似乎无法导入公钥。

Answer 1

根据注释，\n传递值时需要一个额外的字符，Ref应替换为Sub用于放置字符串的函数。

  Resources:
    CloudfrontPublicKey:
      Type: AWS::CloudFront::PublicKey
      Properties:
        PublicKeyConfig:
          CallerReference: 'some-caller-reference'
          Comment: 'Public key for signed url'
          Name: 'cloudfront-public-key'
          EncodedKey: !Sub "${MyPublicKey}"

下面是内联键示例：

生成密钥：

openssl genrsa -out private_key.pem 2048
openssl rsa -pubout -in private_key.pem -out public_key.pem

云信息模板：

AWSTemplateFormatVersion: "2010-09-09"
Resources:
  CloudfrontPublicKey:
    Type: AWS::CloudFront::PublicKey
    Properties:
      PublicKeyConfig:
        CallerReference: 'some-caller-reference'
        Comment: 'Public key for signed url'
        Name: 'cloudfront-public-key'
        EncodedKey: |
          -----BEGIN PUBLIC KEY-----
          MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAsG0grTw5uHbO4CkFVyqN
          lKLGd9ZJrj6l68QU20SzrF7jgQtzE7VKfHxWfzE5FDKF1qKVLT0mURjlRfRPUXaT
          sZYsnKv+cTYkraewdLqbVuN7JII2D/cEXTYRn7849kGKycl3YMXeJeBStbLSPWfh
          MNJZnlFnEX6DkYtwk0Ae0bQ3WT1Be/Xhe4pqSQsnU+InSDkIfA+4UTRLa0kTCgON
          8BjcNloJE3NbLYshQPconb8pA+3jjkMF0QAH6rtc452G7CuS3KBfVQwWUeWE77kK
          wQQir6YFvKP3pG8Ls55FxXBTCCNJl5LZcHt1D0cZmuoSLJj2mVzJgKGyLTdoIwAW
          6QIDAQAB
          -----END PUBLIC KEY-----

列出键：

aws cloudfront list-public-keys|jq .PublicKeyList.Items[1]

输出：

{
  "Id": "08ZCTRKADSADASDAS",
  "Name": "cloudfront-public-key",
  "CreatedTime": "2021-02-27T10:25:43.076Z",
  "EncodedKey": "-----BEGIN PUBLIC KEY-----\nMIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAsG0grTw5uHbO4CkFVyqN\nlKLGd9ZJrj6l68QU20SzrF7jgQtzE7VKfHxWfzE5FDKF1qKVLT0mURjlRfRPUXaT\nsZYsnKv+cTYkraewdLqbVuN7JII2D/cEXTYRn7849kGKycl3YMXeJeBStbLSPWfh\nMNJZnlFnEX6DkYtwk0Ae0bQ3WT1Be/Xhe4pqSQsnU+InSDkIfA+4UTRLa0kTCgON\n8BjcNloJE3NbLYscZmuoSLJj2mVzJgKGyLTdoIwAW\n6QIDAQAB\n-----END PUBLIC KEY-----\n",
  "Comment": "Public key for signed url"
}

在 AWS cloudformation 中创建公钥时出现以下错误：提供的请求无效：AWS::CloudFront::PublicKey已应答。