Question

我是aws的新手。我想为aws调用生成临时凭证。为此，我使用Making Requests Using IAM User Temporary Credentials - AWS SDK for Java

中的示例

我通过的地方

String clientRegion = "<specific region>";
String roleARN = "<ARN from role>";
String roleSessionName = "Just random string"; //<-- maybe I should pass specific SessionName?
String bucketName = "<specific bucket name>";

尝试担任角色时

stsClient.assumeRole(roleRequest);

收到错误

com.amazonaws.services.securitytoken.model.AWSSecurityTokenServiceException：用户：arn：aws：iam ::: user /无权执行：
sts:AssumeRole on resource: arn:aws:iam::<ID>:role/<ROLE_NAME> (Service: AWSSecurityTokenService; Status Code: 403; Error Code:
存取遭拒;请求ID：）

我有 cognito 角色。我认为角色信任关系设置中的问题。它看起来像这样：

    {
  "Version": "2012-10-17",
  "Statement": [
    {
      "Effect": "Allow",
      "Principal": {
        "AWS": "arn:aws:iam::<iam user ID>:user/<USER_NAME>",
        "Federated": "cognito-identity.amazonaws.com"
      },
      "Action": "sts:AssumeRoleWithWebIdentity",
      "Condition": {
        "StringEquals": {
          "cognito-identity.amazonaws.com:aud": "<user pool ID>"
        },
        "ForAnyValue:StringLike": {
          "cognito-identity.amazonaws.com:amr": "authenticated"
        }
      }
    }
  ]
}

和用户政策（此用户政策已附加也适用于此角色）：

{
    "Version": "2012-10-17",
    "Statement": [
        {
            "Sid": "<sidId1>",
            "Effect": "Allow",
            "Action": [
                "s3:PutObject",
                "s3:PutObjectAcl"
            ],
            "Resource": [
                "arn:aws:s3:::<path>*"
            ]
        },
        {
            "Sid": "sidId2",
            "Effect": "Allow",
            "Action": [
                "sts:AssumeRole",
                "sts:AssumeRoleWithWebIdentity"
            ],
            "Resource": [
                "arn:aws:iam::<ID>:role/<ROLE_NAME>"
            ]
        }
    ]
}

用户政策有两个警告：

我做错了什么？

UPD 我更改了角色信任关系，只需删除条件：

{
  "Version": "2012-10-17",
  "Statement": [
    {
      "Effect": "Allow",
      "Principal": {
        "Federated": "cognito-identity.amazonaws.com",
        "AWS": "arn:aws:iam::<ID>:user/<USER>"
      },
      "Action": [
        "sts:AssumeRole",
        "sts:AssumeRoleWithWebIdentity"
      ]
    }
  ]
}

现在访问被拒绝错误发生在另一行代码上：

  // Verify that assuming the role worked and the permissions are set correctly
  // by getting a set of object keys from the bucket.
  ObjectListing objects = s3Client.listObjects(bucketName);

收到错误响应：com.amazonaws.services.s3.model.AmazonS3Exception：拒绝访问（服务：Amazon S3;状态代码：403;错误代码：AccessDenied;请求ID：），S3扩展请求ID：

AWSSecurityTokenServiceException：被拒绝。用户无权执行sts：AssumeRole

0 个答案: