Commit graph

247 commits

Author SHA1 Message Date
Richard Scothern
3da5f9088d Allow EC2 IAM roles to be used when authorizing region endpoints
Signed-off-by: Richard Scothern <richard.scothern@docker.com>
2016-07-11 10:54:57 -07:00
Stefan Majewsky
1f03d4e77d [Swift] add simple heuristic to detect incomplete DLOs during read ops
This is similar to waitForSegmentsToShowUp which is called during
Close/Commit. Intuitively, you wouldn't expect missing segments to be a
problem during read operations, since the previous Close/Commit
confirmed that all segments are there.

But due to the distributed nature of Swift, the read request could be
hitting a different storage node of the Swift cluster, where the
segments are still missing.

Load tests on my team's staging Swift cluster have shown this to occur
about once every 100-200 layer uploads when the Swift proxies are under
high load. The retry logic, borrowed from waitForSegmentsToShowUp, fixes
this temporary inconsistency.

Signed-off-by: Stefan Majewsky <stefan.majewsky@sap.com>
2016-07-08 13:47:41 +02:00
Josh Chorlton
2d0a5ecc0e fixed s3 Delete bug due to read-after-delete inconsistency
Signed-off-by: Josh Chorlton <josh.chorlton@docker.com>
2016-06-28 14:22:15 -07:00
Richard Scothern
edd7cb5249 Merge pull request #1739 from cezarsa/master
[Swift] Expose EndpointType parameter in driver
2016-06-15 10:33:48 -07:00
Richard Scothern
1fc752c718 Merge pull request #1706 from aibaars/registry-size-close
Blobwriter: call BlobWriter.Size after BlobWriter.Close
2016-06-13 16:29:35 -07:00
Cezar Sa Espinola
7f72092940
Expose EndpointType parameter in swift storage driver
Signed-off-by: Cezar Sa Espinola <cezarsa@gmail.com>
2016-06-13 19:28:45 -03:00
allencloud
db90724ab0 fix typos
Signed-off-by: allencloud <allen.sun@daocloud.io>
2016-06-02 23:03:27 +08:00
Richard Scothern
df2184c810 Merge pull request #1627 from luckyraul/swift_auth_url
Swift auth version param
2016-06-01 11:23:23 -07:00
Richard Scothern
4f2ee029a2 Add 'us-gov-west-1' to the valid region list.
Signed-off-by: Richard Scothern <richard.scothern@docker.com>
2016-05-09 16:38:16 +01:00
Arthur Baars
eca581cf36 StorageDriver: GCS: allow Cancel on a closed FileWriter
Signed-off-by: Arthur Baars <arthur@semmle.com>
2016-05-06 13:04:30 +01:00
Arthur Baars
1d782c38f2 StorageDriver: Test case for #1698
Signed-off-by: Arthur Baars <arthur@semmle.com>
2016-05-06 13:04:30 +01:00
Richard Scothern
c047d34b22 Merge pull request #1695 from tonyhb/add-regulator-to-filesystem
Add regulator to filesystem
2016-05-04 10:05:51 -07:00
Tony Holdstock-Brown
c9c62380ff Don't wrap thead limits when using a negative int
Signed-off-by: Tony Holdstock-Brown <tony@docker.com>
2016-05-03 16:03:44 -07:00
Tony Holdstock-Brown
33c448f147 Implement regulator in filesystem driver
This commit refactors base.regulator into the 2.4 interfaces and adds a
filesystem configuration option `maxthreads` to configure the regulator.

By default `maxthreads` is set to 100. This means the FS driver is
limited to 100 concurrent blocking file operations. Any subsequent
operations will block in Go until previous filesystem operations
complete.

This ensures that the registry can never open thousands of simultaneous
threads from os filesystem operations.

Note that `maxthreads` can never be less than 25.

Add test case covering parsable string maxthreads

Signed-off-by: Tony Holdstock-Brown <tony@docker.com>
2016-05-03 09:33:22 -07:00
Richard Scothern
5d08dfa70c Merge pull request #1650 from majewsky/swift/wait-for-dlo-segments
[Swift] wait for DLO segments to show up when Close()ing the writer
2016-05-02 13:41:26 -07:00
Richard Scothern
a7dda2ce93 Merge pull request #1665 from andrewhsu/middleware-redirect
add middleware storage driver for redirect
2016-04-27 15:05:52 -07:00
Josh Hawn
e4dd3359cc Regulate filesystem driver to max of 100 calls
It's easily possible for a flood of requests to trigger thousands of
concurrent file accesses on the storage driver. Each file I/O call creates
a new OS thread that is not reaped by the Golang runtime. By limiting it
to only 100 at a time we can effectively bound the number of OS threads
in use by the storage driver.

Docker-DCO-1.1-Signed-off-by: Josh Hawn <josh.hawn@docker.com> (github: jlhawn)

Signed-off-by: Tony Holdstock-Brown <tony@docker.com>
2016-04-26 14:44:13 -07:00
Andrew Hsu
09a9b0cf90 separate the go/non-go imports and reorder
Signed-off-by: Andrew Hsu <andrewhsu@acm.org> (github: andrewhsu)
2016-04-26 14:33:54 -07:00
Richard Scothern
c83afea0c9 Merge pull request #1660 from jhaohai/cn-north-1-fix
Add cn-north-1 to valid check
2016-04-25 16:07:54 -07:00
Andrew Hsu
c4df027d41 modify redirect test to include port
Signed-off-by: Andrew Hsu <andrewhsu@acm.org> (github: andrewhsu)
2016-04-25 11:52:46 -07:00
Andrew Hsu
80248c3d3a scheme and host mandatory in baseurl
Signed-off-by: Andrew Hsu <andrewhsu@acm.org> (github: andrewhsu)
2016-04-25 11:52:25 -07:00
Andrew Hsu
059bc5f5ef separate the go/non-go imports and reorder
Signed-off-by: Andrew Hsu <andrewhsu@acm.org> (github: andrewhsu)
2016-04-25 11:52:03 -07:00
Anis Elleuch
987faca8a6 Sorting completed parts by part number for a better accordance with the S3 spec
Signed-off-by: Anis Elleuch <vadmeste@gmail.com>
2016-04-23 22:36:04 +01:00
Andrew Hsu
4b217ccbf5 add middleware storage driver for redirect
Signed-off-by: Andrew Hsu <andrewhsu@acm.org> (github: andrewhsu)
2016-04-21 16:02:52 -07:00
jhaohai
f76c622d8c add cn-north-1 to valid check
Signed-off-by: jhaohai <jhaohai@foxmail.com>
2016-04-21 11:51:34 +08:00
Stefan Majewsky
9a67520af7 wait for DLO segments to show up when Close()ing the writer
Not just when Commit()ing the result. This fixes some errors I observed
when the layer (i.e. the DLO) is Stat()ed immediately after closing,
and reports the wrong file size because the container listing is not
yet up-to-date.

Signed-off-by: Stefan Majewsky <stefan.majewsky@sap.com>
2016-04-19 14:31:49 +02:00
Nikita Tarasov
b4f060599a docs + fix test
Signed-off-by: Nikita Tarasov <nikita@mygento.ru>
2016-04-17 20:05:51 +03:00
Nikita Tarasov
b51607f9f0 fix test
Signed-off-by: Nikita Tarasov <nikita@mygento.ru>

Signed-off-by: Nikita Tarasov <nikita@mygento.ru>
2016-04-17 19:52:40 +03:00
Nikita
bcb7989fca test
Signed-off-by: Nikita Tarasov <nikita@mygento.ru>
2016-04-13 18:49:38 +03:00
Nikita
e6f8d7c28e Update swift.go
Signed-off-by: Nikita Tarasov <nikita@mygento.ru>
2016-04-13 18:49:25 +03:00
Richard Scothern
4c119524f1 Merge pull request #1604 from ArdaXi/custom-s3-skip-region-check
Only check validity of S3 region if not using custom endpoint
2016-04-08 15:38:24 -07:00
Stefan Majewsky
67321cb622 detect outdated container listings during Stat() and getAllSegments()
Signed-off-by: Stefan Majewsky <stefan.majewsky@sap.com>
2016-04-06 15:21:27 +02:00
Arien Holthuizen
dbb6e28da2 Only check validity of S3 region if not using custom endpoint
Signed-off-by: Arien Holthuizen <aholthuizen@schubergphilis.com>
2016-04-06 13:38:09 +02:00
Stefan Majewsky
4c9bed2507 don't swallow errors in Swift driver's GetContent()
In 326c3a9c49, which was only intended to
be a refactoring commit, the behavior of this block subtly changed so
that unknown types of errors would be swallowed instead of propagated.

I noticed this while investigating an error similar to #1539 aka
docker/docker#21290. It appears that during GetContent() for a
hashstate, the Swift proxy produces an error. Since this error was
silently swallowed, an empty []byte is used to restart the hash, then
producing the digest of the empty string instead of the layer's digest.

This PR will not fix the issue, but it should make the actual error more
visible by propagating it into `blobWriter#resumeDigest' and
'blobWriter#validateBlob', respectively.

Signed-off-by: Stefan Majewsky <stefan.majewsky@sap.com>
2016-03-30 16:11:29 +02:00
Aaron Schlesinger
f4bdc6287a Remove the example
Instead, direct users to the one in the factory package

Signed-off-by: Aaron Schlesinger <aschlesinger@deis.com>
2016-03-29 14:42:28 -07:00
Aaron Schlesinger
204ad474e4 Add documentation for how to register new StorageDrivers
This commit adds context-specific documentation on StorageDriver,
StorageDriverFactory, and the factory’s Register func, explaining how
the internal registration mechanism should be used.

This documentation follows from the thread starting at
https://github.com/deis/builder/pull/262/files#r56720200.

cc/ @stevvooe

Signed-off-by: Aaron Schlesinger <aschlesinger@deis.com>
2016-03-29 14:42:19 -07:00
Richard Scothern
2c635d1f7e Merge pull request #1532 from RichardScothern/azure-error-types
Update missing blob error checking with latest Azure API
2016-03-15 10:08:36 -07:00
Richard Scothern
772e6f4057 Update missing blob error checking with latest Azure API
Signed-off-by: Richard Scothern <richard.scothern@docker.com>
2016-03-14 15:59:03 -07:00
Matt Duch
fcb247dfce registry/storage/driver/s3-aws kms support
Signed-off-by: Matt Duch <matt@learnmetrics.com>
2016-03-11 17:19:01 -06:00
Brian Bland
c03b5fc5ee Merge pull request #1438 from BrianBland/newStorageDriverWriter
Adds new StorageDriver.FileWriter interface
2016-03-11 15:06:07 -08:00
Brian Bland
5967d33342 Removes ceph rados driver in favor of Swift API gateway support
Signed-off-by: Brian Bland <brian.bland@docker.com>
2016-03-10 16:49:08 -08:00
Keerthan Mala
2be1b4ef4f Added support to specifiy custom endpoint
Signed-off-by: Keerthan Reddy Mala <keerthan.mala@gmail.com>
2016-03-09 16:12:20 -07:00
Brian Bland
7fd1db9312 Updates Swift driver to support new storagedriver.FileWriter interface
Signed-off-by: Brian Bland <brian.bland@docker.com>
2016-03-08 16:38:39 -08:00
Li Yi
a9bf7a2aae Support FileWriter interface for OSS storage driver
Change-Id: Ie5533ad85f944800499ca1040fd67bf1378815e0
Signed-off-by: Li Yi <denverdino@gmail.com>
2016-03-08 16:38:39 -08:00
Arthur Baars
307504713f Storagedriver: GCS: add chunksize parameter
Signed-off-by: Arthur Baars <arthur@semmle.com>
2016-03-08 16:38:39 -08:00
Arthur Baars
7162cb19c6 Storagedriver: GCS: implement resumable uploads
Signed-off-by: Arthur Baars <arthur@semmle.com>
2016-03-08 16:38:39 -08:00
Arthur Baars
666273d9f6 StorageDriver: Testsuite: call Close before getting Size
Signed-off-by: Arthur Baars <arthur@semmle.com>
2016-03-08 16:38:38 -08:00
Brian Bland
ff03381d49 Adds new storagedriver.FileWriter interface
Updates registry storage code to use this for better resumable writes.
Implements this interface for the following drivers:
 + Inmemory
 + Filesystem
 + S3
 + Azure

Signed-off-by: Brian Bland <brian.bland@docker.com>
2016-03-08 16:37:44 -08:00
Aaron Lehmann
87e34bd307 Fix two misspellings in source code comments
Signed-off-by: Aaron Lehmann <aaron.lehmann@docker.com>
2016-03-08 15:13:24 -08:00
Brian Bland
302cc39937 [driver/s3aws] Update s3aws driver parameter parsing to match s3goamz
Mirrors changes from #1414 into the newer driver

Signed-off-by: Brian Bland <brian.bland@docker.com>
2016-03-07 11:52:34 -08:00
Richard Scothern
62d46ef07d Merge pull request #1388 from aibaars/gcs-simplify-move
StorageDriver: GCS: remove support for directory Moves
2016-03-03 10:20:51 -08:00
Arthur Baars
1593c2413f StorageDriver: GCS: remove support for directory Moves
The Move operation is only used to move uploaded blobs
to their final destination. There is no point in implementing
Move on "folders". Apart from simplifying the code, this also
saves an HTTP request.

Signed-off-by: Arthur Baars <arthur@semmle.com>
2016-03-03 13:28:13 +00:00
Stefan Weil
615c6dfced Fix some typos in comments and strings
All of them were found and fixed by codespell.

Signed-off-by: Stefan Weil <sw@weilnetz.de>
2016-02-23 22:33:38 +01:00
Anton Tiurin
a048a4c8d5 Fix description of StorageDriver.WriteStream
Offset can be more than CurrentSize as long as this case is checked
by DriverSuite.testContinueStreamAppend.

Signed-off-by: Anton Tiurin <noxiouz@yandex.ru>
2016-02-17 13:57:20 +03:00
Brian Bland
c770f28f04 [driver/s3aws] Fix TestStorageClass
Fixes bug in TestStorageClass for s3aws driver where the "standard" file
was checked for reduced-redundnancy storage.

Signed-off-by: Brian Bland <brian.bland@docker.com>
2016-02-16 17:50:55 -08:00
Brian Bland
b9907c4853 Merge pull request #1385 from BrianBland/s3UseAWSLibrary
[driver/s3] Use aws/aws-sdk-go instead of goamz for s3 driver and cloudfront
2016-02-16 11:19:15 -08:00
liuchang0812
0758653b42 fix gofmt
Signed-off-by: liuchang0812 <liuchang0812@gmail.com>
2016-02-16 11:42:09 +08:00
liuchang0812
dbba9cf299 closes #1461, enhance log message of oss driver
Signed-off-by: liuchang0812 <liuchang0812@gmail.com>
2016-02-16 11:17:09 +08:00
Brian Bland
1319be2cae Adds new s3 driver using aws-sdk-go instead of goamz
Keeps old s3 driver, renames to s3goamz, registers new s3 driver as both
"s3" and "s3aws"

Changes cloudfront middleware to use aws-sdk-go

Signed-off-by: Brian Bland <brian.bland@docker.com>
2016-02-12 15:59:26 -08:00
Aaron Lehmann
aa80478b64 Typo fixes in comments
Correct spelling of words in source code comments.

Signed-off-by: Aaron Lehmann <aaron.lehmann@docker.com>
2016-02-10 16:26:29 -08:00
Brian Bland
52b4a328dd Improves flexibility of configuration handling for S3 driver
Treats nil parameters the same as unprovided parameters (fixes issues
where certain parameters are printed to "<nil>").
Accepts "true" and "false" string values for boolean parameters.

Signed-off-by: Brian Bland <brian.bland@docker.com>
2016-02-09 17:27:16 -08:00
Richard Scothern
2cc6ccbded Merge pull request #1401 from BrianBland/s3StorageClass
Adds "storageclass" configuration parameter for S3 driver.
2016-02-04 16:44:13 -08:00
yuzou
44c0b9ae87 read the actual number of bytes according to the initial size.
Signed-off-by: yuzou <zouyu7@huawei.com>
2016-02-04 16:14:35 +08:00
Brian Bland
695bac7b0f Adds test for S3 storage class configuration option
Signed-off-by: Brian Bland <brian.bland@docker.com>
2016-02-01 16:01:55 -08:00
Brian Bland
4688d1adc2 Adds "storageclass" configuration parameter for S3 driver.
Defaults to STANDARD, also supports REDUCED_REDUNDANCY.

Signed-off-by: Brian Bland <brian.bland@docker.com>
2016-02-01 16:01:19 -08:00
Aaron Lehmann
2fc586d2a4 Merge pull request #1381 from BrianBland/s3CustomUAString
Adds custom registry User-Agent header to s3 HTTP requests
2016-02-01 15:40:36 -08:00
Brian Bland
2dc1af12a1 Adds custom registry User-Agent header to s3 HTTP requests
Uses docker/goamz instead of AdRoll/goamz

Adds a registry UA string param to the storage parameters when
constructing the storage driver for the registry App.
This could be used by other storage drivers as well

Signed-off-by: Brian Bland <brian.bland@docker.com>
2016-02-01 13:43:46 -08:00
Arthur Baars
2a4345ca4b StorageDriver: GCS: retry all api calls
Signed-off-by: Arthur Baars <arthur@semmle.com>
2016-01-20 13:24:09 +00:00
Arthur Baars
6ee339464c StorageDriver: Test suite: improve cleanup
Verify that the file(s) have been deleted after calling Delete,
and retry if this is not the case. Furthermore, report the error
if a Delete operation fails.

Signed-off-by: Arthur Baars <arthur@semmle.com>
2016-01-20 13:24:09 +00:00
Richard Scothern
fc7ee6d789 Merge pull request #1355 from hopkings2008/master
In testsuites.go, enlarge the size of randomBytes to 128M to fix the …
2016-01-18 12:38:26 -08:00
Arthur Baars
19d7c9e051 StorageDriver GCS: try google.DefaultTokenSource first
Signed-off-by: Arthur Baars <arthur@semmle.com>
2016-01-15 11:47:47 +00:00
yuzou
cc82b0d48e In testsuites.go, enlarge the size of randomBytes to 128M to fix the crash of running TestConcurrentStreamReads
Signed-off-by: yuzou <zouyu7@huawei.com>
2016-01-15 17:22:43 +08:00
Richard Scothern
81dbebc7d3 Change the parameters to the GCS drivers to allow CircleCI testing.
Remove the requirement of file system access to run GCS unit tests.  Deconstruct
the input parameters to take the private key and email which can be specified on
the build system via environment variables.

Signed-off-by: Richard Scothern <richard.scothern@gmail.com>
2016-01-13 18:00:59 -08:00
Richard Scothern
cc0b6b86ea Merge pull request #1276 from denverdino/oss-test
Support large layer for OSS driver
2016-01-08 13:26:09 -08:00
Richard Scothern
9f83bfc071 Merge pull request #1321 from aibaars/gcs-fix-retry
GCS storage driver: fix retry function
2016-01-06 12:00:12 -08:00
Arthur Baars
bb1e9e0a82 GCS Storagedriver: fix test failure caused by #1187
Signed-off-by: Arthur Baars <arthur@semmle.com>
2016-01-06 18:36:28 +00:00
Arthur Baars
d3d40a8807 GCS driver: fix retry function
Signed-off-by: Arthur Baars <arthur@semmle.com>
2016-01-06 17:57:22 +00:00
weiyuan.yl
75abeeca11 Replace 404 to http.StatusNotFound
Change-Id: Ia100975cb93c0a6d94ea5542b1c9ce386bc87649
Signed-off-by: weiyuan.yl <weiyuan.yl@alibaba-inc.com>
2015-12-29 12:09:04 +08:00
Brian Bland
f19deba809 Relaxes filesystem driver permissions to 0777 (dirs) and 0666 (files)
Leaves any further permissions restrictions to the process umask

Signed-off-by: Brian Bland <brian.bland@docker.com>
2015-12-28 15:22:28 -08:00
weiyuan.yl
3e4b554f8d In HEAD request for missing resource, only 404 NOT FOUND is returned
Change-Id: I73caf67b59519e6f4f82f7d78f5d4fd4ad9affcd
Signed-off-by: weiyuan.yl <weiyuan.yl@alibaba-inc.com>
2015-12-28 11:28:42 +08:00
Li Yi
54da47d636 Support large layer for OSS driver
Signed-off-by: Li Yi <denverdino@gmail.com>
2015-12-11 10:56:50 +08:00
Richard Scothern
796d6e7915 Merge pull request #1187 from stevvooe/check-storage-drivers-list-path-not-found
[WIP] registry/storage/driver: checking that non-existent path returns PathNotFoundError
2015-12-08 16:32:02 -08:00
Stephen J Day
66cd2bf950 storage/driver/s3: adjust s3 driver to return unmunged path
This fixes both the s3 driver and the oss driver to return the unmunged path
when returning errors.

Signed-off-by: Stephen J Day <stephen.day@docker.com>
2015-12-08 15:48:55 -08:00
Stephen Day
e4208ad5a7 Merge pull request #1246 from stevvooe/decrease-driver-testsuite-allocations
storage/driver: decrease memory allocation done during testsuite
2015-12-08 14:52:59 -08:00
Li Yi
b6756a3d89 Fix the issue for listing root directory
Change-Id: I1c6181fa4e5666bd2e6ec69cb608c4778ae0fe48
Signed-off-by: Li Yi <denverdino@gmail.com>
2015-12-08 12:04:04 -08:00
Li Yi
7161fa0559 Fix for stevvooe:check-storage-drivers-list-path-not-found in OSS driver
Change-Id: I5e96fe761d3833c962084fd2d597f47e8a72e7c2
Signed-off-by: Li Yi <denverdino@gmail.com>
2015-12-08 12:04:04 -08:00
davidli
79d4d7f546 driver/swift: treat empty object list as a PathNotFoundError
Swift returns an empty object list when trying to read a non-existing object path, treat it as a
PathNotFoundError when trying to list a non existing virtual directory.

Signed-off-by: David li <wenquan.li@hpe.com>
2015-12-08 12:04:04 -08:00
Vincent Giersch
f25ccea279 driver/rados: treat OMAP EIO as a PathNotFoundError
RADOS returns a -EIO when trying to read a non-existing OMAP, treat it as a
PathNotFoundError when trying to list a non existing virtual directory.

Signed-off-by: Vincent Giersch <vincent@giersch.fr>
2015-12-08 12:04:04 -08:00
Stephen J Day
a889f46223 storage/driver/s3: correct response on list of missing directory
Signed-off-by: Stephen J Day <stephen.day@docker.com>
2015-12-08 12:04:03 -08:00
Stephen J Day
b45078eb44 storage/driver/base: use correct error format style
Signed-off-by: Stephen J Day <stephen.day@docker.com>
2015-12-08 12:04:03 -08:00
Stephen J Day
a4eae0917e driver/filesystem: address filesystem driver on behavior of List
Signed-off-by: Stephen J Day <stephen.day@docker.com>
2015-12-08 12:04:03 -08:00
Stephen J Day
0322c3bf1f registry/storage/driver: checking that non-existent path returns PathNotFoundError
Issue #1186 describes a condition where a null tags response is returned when
using the s3 driver. The issue seems to be related to a missing
PathNotFoundError in s3. This change adds a test for that to get an idea of the
lack of compliance across storage drivers. If the failures are manageable,
we'll add this test condition and fix the s3 driver.

Signed-off-by: Stephen J Day <stephen.day@docker.com>
2015-12-08 12:04:03 -08:00
Stephen Day
807a80ff06 Merge pull request #1238 from noxiouz/fix_comment
Fix comment for PathRegexp
2015-12-08 10:41:16 -08:00
Stephen J Day
9dc3c6df0e storage/driver: decrease memory allocation done during testsuite
Signed-off-by: Stephen J Day <stephen.day@docker.com>
2015-12-07 19:05:13 -08:00
Anton Tiurin
d4435b79d9 Fix comment for PathRegexp
Signed-off-by: Anton Tiurin <noxiouz@yandex.ru>
2015-12-04 22:14:21 +03:00
Sylvain Baubeau
ef4ab7a885 Use bulk delete to remove segments in Swift driver
Signed-off-by: Sylvain Baubeau <sbaubeau@redhat.com>
2015-12-04 12:16:49 +01:00
Richard Scothern
a33095af80 Merge pull request #1141 from lebauce/swift-no-missing-segment
Ensure read after write for segments
2015-11-10 10:39:43 -08:00
Aaron Lehmann
6664a1384e Fix empty delete requests with Swift fs driver
The Delete method lists objects under the given path and tries to delete
all of them with a bulk delete request. If the path has no objects
underneath it, the body of this request will be empty, which causes
HTTP-level issues. Specifically, Go's HTTP client senses the empty
request buffer and doesn't include a Content-Length, which causes the
Swift server to fail the request.

This commit fixes the problem by avoiding sending empty bulk delete
requests. This is the correct thing to do anyway, since there's no
reason to request deletion of zero objects.

Signed-off-by: Aaron Lehmann <aaron.lehmann@docker.com>
2015-11-09 15:33:05 -08:00
Richard Scothern
bc6e4cdceb Add a generic error type to capture non-typed errors
Signed-off-by: Richard Scothern <richard.scothern@gmail.com>
2015-11-03 11:19:44 -08:00
amitshukla
9637cb40cd Fix for issue 664: https://github.com/docker/distribution/issues/664
Errors thrown by storage drivers don't have the name of the driver, causing user
confusion about whether the error is coming from Docker or from a storage driver.
This change adds the storage driver name to each error message.

This required changing ErrUnsupportedDriver to a type, leading to code changes
whenever ErrUnsupportedDriver is used.  The tests check whether the driver name
appears in the error message.

Signed-off-by: Amit Shukla <amit.shukla@docker.com>
2015-11-03 11:19:17 -08:00