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Matthias Sohn f496177a37 Support Amazon S3 based storage for LFS Add a storage implementation storing large objects in Amazon S3. The AmazonS3Repository pre-signs download and upload requests. AWS access and secret key are expected to be in the $HOME/.aws/credentials file in the following format: [default] accessKey = ... secretKey = ... Use AWS version 4 request signing [1] because it is more secure and supported by all regions. The version 3 signing is not supported in newer regions. In follow up changes we should: - implement getVerifyAction() and do actual verification. Subclasses of S3Repository can implement caching for object meta data (size) in order to avoid extra roundtrips to S3. Verification should ensure that meta data store and content of S3 storage are in sync - HEAD request used in S3Repository.getSize() seems to always return Content-length 0 in contrast to the documentation [2]. So getSize() does detect if the object exists in S3 or not but in case the object exists it always returns size 0 [1] http://docs.aws.amazon.com/general/latest/gr/signature-version-4.html [2] https://forums.aws.amazon.com/thread.jspa?threadID=223616 Change-Id: Ic47f094928a259e5264c92b3aacf6d90210907a8 Signed-off-by: Matthias Sohn <matthias.sohn@sap.com> Signed-off-by: Sasa Zivkov <sasa.zivkov@sap.com>	pirms 8 gadiem
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LfsServerText.java	Support Amazon S3 based storage for LFS	pirms 8 gadiem

Matthias Sohn f496177a37 Support Amazon S3 based storage for LFS

Add a storage implementation storing large objects in Amazon S3.
The AmazonS3Repository pre-signs download and upload requests.

AWS access and secret key are expected to be in the
$HOME/.aws/credentials file in the following format:

[default]
  accessKey = ...
  secretKey = ...

Use AWS version 4 request signing [1] because it is more secure and
supported by all regions. The version 3 signing is not supported in
newer regions.

In follow up changes we should:

- implement getVerifyAction() and do actual verification. Subclasses of
S3Repository can implement caching for object meta data (size) in order
to avoid extra roundtrips to S3. Verification should ensure that meta
data store and content of S3 storage are in sync

- HEAD request used in S3Repository.getSize() seems to always return
Content-length 0 in contrast to the documentation [2]. So getSize() does
detect if the object exists in S3 or not but in case the object exists
it always returns size 0

[1] http://docs.aws.amazon.com/general/latest/gr/signature-version-4.html
[2] https://forums.aws.amazon.com/thread.jspa?threadID=223616

Change-Id: Ic47f094928a259e5264c92b3aacf6d90210907a8
Signed-off-by: Matthias Sohn <matthias.sohn@sap.com>
Signed-off-by: Sasa Zivkov <sasa.zivkov@sap.com>

pirms 8 gadiem

LfsServerText.java

Support Amazon S3 based storage for LFS

pirms 8 gadiem