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无服务器AWS(Python)从S3读取:访问被拒绝

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我有一个问题,从我的lambda函数(FrameWork serverless)到AWS中的S3服务的getObject访问 . 这里是我的代码示例:

import boto3
import csv
def hello(event, context):
    s3 = boto3.resource('s3')
    bucket = s3.Bucket('myBucket')
    obj = bucket.Object(key='MOCK_DATA.csv')
    response = obj.get()
    lines = response['Body'].read().split()
    body = []
    for row in csv.DictReader(lines):
        body.append(row)
    return body

在我的serverless.yml中,我给了我的lambda完全访问存储桶

iamRoleStatements:
   - Effect: "Allow"
     Action:
       - "s3:*"
     Resource:
         - "arn:aws:s3:::myBucket"

但是当我运行代码时,我收到错误:

START RequestId: a6c006b7-21e5-11e8-8193-c3378825927 Version: $LATEST
An error occurred (AccessDenied) when calling the GetObject operation: Access Denied: ClientError
Traceback (most recent call last):
  File "/var/task/handler.py", line 5, in hello
    response = obj.get()
  File "/var/runtime/boto3/resources/factory.py", line 520, in do_action
    response = action(self, *args, **kwargs)
  File "/var/runtime/boto3/resources/action.py", line 83, in __call__
    response = getattr(parent.meta.client, operation_name)(**params)
  File "/var/runtime/botocore/client.py", line 317, in _api_call
    return self._make_api_call(operation_name, kwargs)
  File "/var/runtime/botocore/client.py", line 615, in _make_api_call
    raise error_class(parsed_response, operation_name)
ClientError: An error occurred (AccessDenied) when calling the GetObject operation: Access Denied

你知道为什么boto3不能获得iam角色的许可吗?因为只有当我使用私钥和访问密钥声明boto3时它才起作用:

s3 = boto3.resource('s3',aws_access_key_id='accesskey',aws_secret_access_key='privateKey')

先感谢您

1 回答

  • 4

    对于像 s3:GetObject 这样的操作,资源应该是 arn:aws:s3:::myBucket/* . 你错过了尾随的 /* .

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