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From "Steven Wong (JIRA)" <j...@apache.org>
Subject [jira] [Created] (HADOOP-12723) S3A: Add ability to plug in any AWSCredentialsProvider
Date Wed, 20 Jan 2016 21:03:39 GMT
Steven Wong created HADOOP-12723:
------------------------------------

             Summary: S3A: Add ability to plug in any AWSCredentialsProvider
                 Key: HADOOP-12723
                 URL: https://issues.apache.org/jira/browse/HADOOP-12723
             Project: Hadoop Common
          Issue Type: New Feature
          Components: fs/s3
    Affects Versions: 2.7.1
            Reporter: Steven Wong
            Assignee: Steven Wong


Although S3A currently has built-in support for {{org.apache.hadoop.fs.s3a.BasicAWSCredentialsProvider.BasicAWSCredentialsProvider}},
{{com.amazonaws.auth.InstanceProfileCredentialsProvider.InstanceProfileCredentialsProvider}},
and {{org.apache.hadoop.fs.s3a.AnonymousAWSCredentialsProvider.AnonymousAWSCredentialsProvider}},
it does not support any other credentials provider that implements the {{com.amazonaws.auth.AWSCredentialsProvider}}
interface. Supporting the ability to plug in any {{com.amazonaws.auth.AWSCredentialsProvider}}
instance will expand the options for S3 credentials, such as:

* temporary credentials from STS, e.g. via {{com.amazonaws.auth.STSSessionCredentialsProvider}}
* IAM role-based credentials, e.g. via {{com.amazonaws.auth.STSAssumeRoleSessionCredentialsProvider}}
* a custom credentials provider that satisfies one's own needs, e.g. bucket-specific credentials,
user-specific credentials, etc.

To support this, we can add a configuration for the fully qualified class name of a credentials
provider, to be loaded by {{S3AFileSystem.initialize}} and added to its credentials provider
chain.

The configured credentials provider should implement {{com.amazonaws.auth.AWSCredentialsProvider}}
and have a constructor that accepts {{(URI name, Configuration conf)}}.





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