Steve Stogner created FLUME-1691:
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Summary: Allow use of EC2 roles with S3 sink
Key: FLUME-1691
URL: https://issues.apache.org/jira/browse/FLUME-1691
Project: Flume
Issue Type: Improvement
Components: Sinks+Sources
Affects Versions: v0.9.4
Reporter: Steve Stogner
Priority: Minor
If you assign an IAM role to an EC2 instance, then AWS exposes role credentials
through the metadata interface. These credentials are temporary credentials
that AWS rolls periodically. When making calls to AWS with temporary
credentials, you have to use a token in addition to the access ID and secret
key. Flume would impress if it would default to the EC2 role credentials when
using an S3 sink with no credentials configuration required. Flume would
either refresh the credentials from the metadata with every call to S3 or when
it detects that the credentials have expired. Users could still override the
use of role credentials with user credentials via the current configuration
method (fs.s3.awsAccessKeyId, fs.s3.awsSecretAccessKey, fs.s3n.awsAccessKeyId,
fs.s3n.awsSecretAccessKey).
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