我需要一个对单个存储桶具有完全访问权限的Amazon S3用户

Question

我有一个用户foo，具有以下权限(它不是任何组的成员):

{
  "Statement": [
    {
      "Sid": "Stmt1308813201865",
      "Action": "s3:*",
      "Effect": "Allow",
      "Resource": "arn:aws:s3:::bar"
    }
  ]
}

然而，该用户似乎无法上传或做任何事情，直到我授予完全访问身份验证的用户(这可能适用于任何人)。这仍然不允许用户更改权限，因为boto在上传后试图执行do key.set_acl('public-read')时抛出错误。

理想情况下，这个用户将完全访问bar桶，没有别的，我做错了什么?

Answer 1

您需要将s3:ListBucket权限授予桶本身。试试下面的策略。

{
  "Statement": [
    {
      "Effect": "Allow",
      "Action": "S3:*",
      "Resource": "arn:aws:s3:::bar/*",
      "Condition": {}
    },
    {
      "Effect": "Allow",
      "Action": [
        "s3:ListBucket"
      ],
      "Resource": "arn:aws:s3:::bar",
      "Condition": {}
    }
  ]
}

Answer 2

选择的答案不适合我，但这个可以:

{
  "Statement": [
    {
      "Action": "s3:*",
      "Effect": "Allow",
      "Resource": [
        "arn:aws:s3:::my-bucket",
        "arn:aws:s3:::my-bucket/*"
      ]
    }
  ],
  "Statement": [
    {
      "Effect": "Allow",
      "Action": "s3:ListAllMyBuckets",
      "Resource": "arn:aws:s3:::*"
    }
  ]
}

信用:http://mikeferrier.com/2011/10/27/granting-access-to-a-single-s3-bucket-using-amazon-iam/

Answer 3

您了解AWS策略生成器吗?

Answer 4

有一份AWS官方文档:写IAM策略:如何授予对Amazon S3桶的访问权限

只需复制并粘贴适当的规则，并在所有语句中将"资源"键更改为您的桶的ARN。

对于编程访问，策略应该是:

{
    "Version": "2012-10-17",
    "Statement": [
        {
            "Effect": "Allow",
            "Action": ["s3:ListBucket"],
            "Resource": ["arn:aws:s3:::bar"]
        },
        {
            "Effect": "Allow",
            "Action": [
                "s3:PutObject",
                "s3:PutObjectAcl",
                "s3:GetObject",
                "s3:GetObjectAcl",
                "s3:DeleteObject"
            ],
            "Resource": ["arn:aws:s3:::bar/*"]
        }
    ]
}

对于控制台访问访问应该是:

{
    "Version": "2012-10-17",
    "Statement": [
        {
            "Effect": "Allow",
            "Action": [
                "s3:GetBucketLocation",
                "s3:ListAllMyBuckets"
            ],
            "Resource": "arn:aws:s3:::bar*"
        },
        {
            "Effect": "Allow",
            "Action": ["s3:ListBucket"],
            "Resource": ["arn:aws:s3:::bar"]
        },
        {
            "Effect": "Allow",
            "Action": [
                "s3:PutObject",
                "s3:PutObjectAcl",
                "s3:GetObject",
                "s3:GetObjectAcl",
                "s3:DeleteObject"
            ],
            "Resource": ["arn:aws:s3:::bar/*"]
        }
    ]
}

Answer 5

这对我有用:

{
    "Statement": [
        {
            "Effect": "Allow",
            "Action": [
                "s3:ListBucket",
                "s3:GetBucketLocation",
                "s3:ListBucketMultipartUploads",
                "s3:ListBucketVersions"
            ],
            "Resource": "arn:aws:s3:::bucket_name_here"
        },
        {
            "Effect": "Allow",
            "Action": [
                "s3:*Object*",
                "s3:ListMultipartUploadParts",
                "s3:AbortMultipartUpload"
            ],
            "Resource": "arn:aws:s3:::bucket_name_here/*"
        }
    ]
}

Answer 6

如果你一直在拔头发，因为你不明白为什么Cyberduck不能设置对象acl，但它与另一个客户端(如Panic Transmit)一起工作，这里是解决方案:

您需要将s3:GetBucketAcl添加到您的Action列表中，例如:

{
    "Statement": [
        {
            "Sid": "Stmt1",
            "Action": [
                "s3:GetBucketAcl",
                "s3:ListBucket",
                "s3:DeleteObject",
                "s3:GetObject",
                "s3:GetObjectAcl",
                "s3:PutObject",
                "s3:PutObjectAcl"
            ],
            "Effect": "Allow",
            "Resource": "arn:aws:s3:::your-bucket-name"
        }
    ]
}

当然，如果您对s3:*的限制较少，则不需要这样做，但我认为知道这一点很好。

Answer 7

@cloudberryman的答案是正确的，但我喜欢让事情尽可能简短。这个答案可以简化为:

{  
   "Statement":[  
      {  
         "Effect":"Allow",
         "Action":"S3:*",
         "Resource":[  
            "arn:aws:s3:::bar",
            "arn:aws:s3:::bar/*"
         ]
      }
   ]
}

Answer 8

{
    "Version": "2012-10-17",
    "Statement": [
        {
            "Effect": "Allow",
            "Action": [
                        "s3:GetBucketLocation",
                        "s3:ListAllMyBuckets"
                      ],
            "Resource": "arn:aws:s3:::*"
        },
        {
            "Effect": "Allow",
            "Action": "s3:*",
            "Resource": [
                "arn:aws:s3:::YOUR-BUCKET",
                "arn:aws:s3:::YOUR-BUCKET/*"
            ]
        }
    ]
}

Answer 9

我最近使用的另一种方法是使用Amazon的文档。对我来说，关键是将IAM User 指向特定的桶，而不是S3控制台。根据文档，"警告:在更改这些权限之后，用户在访问主Amazon S3控制台时会得到Access Denied错误。主控制台链接类似于以下内容:

https://s3.console.aws.amazon.com/s3/home

相反，用户必须使用到该桶的直接控制台链接来访问该桶，类似于以下操作:

https://s3.console.aws.amazon.com/s3/buckets/awsexamplebucket/

"

我的策略如下:

{
"Version": "2012-10-17",
"Statement": [
    {
        "Sid": "Stmt1589486662000",
        "Effect": "Allow",
        "Action": [
            "s3:*"
        ],
        "Resource": [
            "arn:aws:s3:::AWSEXAMPLEBUCKET",
            "arn:aws:s3:::AWSEXAMPLEBUCKET/*"
        ]
    }
]
}