我已经通过亚马逊网络控制台生成了ssh密钥。但是如何使用它来创建胶水开发者端点？

请考虑以下代码段：

    IAMRole:
      Type: "AWS::IAM::Role"
      DeletionPolicy: "Delete"
      Properties:
        AssumeRolePolicyDocument:
          Version: "2012-10-17"
          Statement:
            -
              Effect: "Allow"
              Principal:
                Service: "glue.amazonaws.com"
              action: "sts:AssumeRole"
        ManagedPolicyArns:
          - "arn:aws:iam::aws:policy/AmazonS3Fullaccess"
          - "arn:aws:iam::aws:policy/service-role/AWSGlueServiceRole"
        MaxSessionDuration: 3600
        Path: "/role/"
        # PermissionsBoundary: String
        # Policies: Json
        RoleName: "GlueDevEndpoint"

    GlueDevEndpoint:
      Type: AWS::Glue::DevEndpoint
      DeletionPolicy: "Delete"
      Properties:
        EndpointName: MyEndpointName
        GlueVersion: "1.0"
        NumberOfNodes: 2
        PublicKey: >
          ---- BEGIN SSH2 PUBLIC KEY ----
          Comment: "imported-openssh-key"
          AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
          BBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBB
          CCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCC
          DDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDD
          EEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEE
          ---- END SSH2 PUBLIC KEY ----
        RoleArn: !Getatt IAMRole.Arn

我遇到错误：

An error occurred: GlueDevEndpoint - Invalid SSH RSA public key. ssh-keygen -t rsa -C "your_email@example.com" (Service: AWSGlue; Status Code: 400; Error Code: InvalidInputException.

我尝试放入以下内容：

从AWS控制台下载了
1. pem文件。
2. 通过腻子提取公共/私人关键部件并使用它们
3. 通过以下命令提取公钥： openssl rsa -in my-key.pem -pubout> my-key.pubrsa
4. 通过以下命令提取公钥： ssh-keygen -y -f my-key.pem> my-key2.pubrsa

从所有这些文件中放入内容会导致相同的错误。我认为应该生成公钥以具有类似 -----BEGIN RSA PUBLIC KEY-----，但之前的所有方法都为我提供了具有不同标题的公共密钥： -----BEGIN RSA PRIVATE KEY-----，---- BEGIN SSH2 PUBLIC KEY ----，-----BEGIN PUBLIC KEY-----

有什么想法吗？