Commit graph

316 commits

Author SHA1 Message Date
Wang Yan
3f4c558dac bump up golang v1.17
Signed-off-by: Wang Yan <wangyan@vmware.com>
2021-10-27 15:51:30 +08:00
Milos Gajdos
af8ac80933
Merge pull request #3427 from joaodrp/tag-delete
Add tag delete API
2021-06-14 17:52:26 +01:00
João Pereira
033683d629
apply feedback
Signed-off-by: João Pereira <484633+joaodrp@users.noreply.github.com>
2021-06-06 19:54:55 +01:00
João Pereira
81f081f91b
Group case values
Signed-off-by: João Pereira <484633+joaodrp@users.noreply.github.com>
2021-05-28 10:33:40 +01:00
João Pereira
6ae6df7d75
Add tag delete API
Signed-off-by: João Pereira <484633+joaodrp@users.noreply.github.com>
2021-05-27 23:27:02 +01:00
João Pereira
8ef268df25
Add tests for tags list pagination
Signed-off-by: João Pereira <484633+joaodrp@users.noreply.github.com>
2021-05-22 15:31:18 +01:00
João Pereira
d80a63f1ea
Merge pull request #3143 from eyJhb/pagination
OCI: Add pagination on `/v2/<name>/tags/list`
2021-05-22 15:05:18 +01:00
Wang Yan
f65a33d3c8
Merge pull request #3227 from wy65701436/fix-conformance-416
OCI: add content range handling in patch blob
2021-05-11 23:51:17 +08:00
wang yan
d7a2b14489 add content range handling in patch blob
Fixes #3141

1, return 416 for Out-of-order blob upload
2, return 400 for content length and content size mismatch

Signed-off-by: wang yan <wangyan@vmware.com>
2021-05-11 23:35:15 +08:00
eyjhb
4da2712b52
added pagination to v2/<name>/tags/list endpoint
Signed-off-by: eyjhb <eyjhbb@gmail.com>
2021-04-23 18:06:04 +02:00
Josh Dolitsky
32ccbf193d
Add configuration option for Redis TLS
Signed-off-by: Josh Dolitsky <josh@dolit.ski>
2021-03-01 18:55:56 -05:00
Milos Gajdos
17ab8afeec
Merge pull request #3174 from adamwg/manifest-delete-by-tag
manifests: Return UNSUPPORTED when deleting manifests by tag
2021-03-01 17:21:03 +00:00
Sebastiaan van Stijn
1d33874951
go.mod: change imports to github.com/distribution/distribution/v3
Go 1.13 and up enforce import paths to be versioned if a project
contains a go.mod and has released v2 or up.

The current v2.x branches (and releases) do not yet have a go.mod,
and therefore are still allowed to be imported with a non-versioned
import path (go modules add a `+incompatible` annotation in that case).

However, now that this project has a `go.mod` file, incompatible
import paths will not be accepted by go modules, and attempting
to use code from this repository will fail.

This patch uses `v3` for the import-paths (not `v2`), because changing
import paths itself is a breaking change, which means that  the
next release should increment the "major" version to comply with
SemVer (as go modules dictate).

Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
2021-02-08 18:30:46 +01:00
olegburov
264e26fd8c Bump Redigo to v1.8.2.
Signed-off-by: olegburov <oleg.burov@outlook.com>
2020-08-31 18:07:54 -07:00
Adam Wolfe Gordon
95f1eea5f5 manifests: Return UNSUPPORTED when deleting manifests by tag
The OCI distribution spec allows implementations to support deleting manifests
by tag, but also permits returning the `UNSUPPORTED` error code for such
requests. docker/distribution has never supported deleting manifests by tag, but
previously returned `DIGEST_INVALID`.

The `Tag` and `Digest` fields of the `manifestHandler` are already correctly
populated based on which kind of reference was given in the request URL. Return
`UNSUPPORTED` if the `Tag` field is populated.

Signed-off-by: Adam Wolfe Gordon <awg@digitalocean.com>
2020-08-04 11:40:27 -06:00
Elliot Pahl
800cb95821
Use go-events package
TBD: Queue not converted yet

Signed-off-by: Elliot Pahl <elliot.pahl@gmail.com>
2020-03-04 12:49:32 -08:00
sayboras
66809646d9 Migrate to golangci-lint
Signed-off-by: Tam Mach <sayboras@yahoo.com>
2020-02-14 08:11:16 +11:00
Fernando Mayo Fernandez
6ca7b9e9fa
Fix TestRegistryAsCacheMutationAPIs
Use a synthetic upstream registry when creating the testing mirror configuration
to avoid the test fail when trying to reach http://example.com

Signed-off-by: Fernando Mayo Fernandez <fernando@undefinedlabs.com>
2019-12-15 13:51:25 +01:00
Bouke van der Bijl
1c481d34d9 registry: Fix typo in RepositoryRemover warning
Signed-off-by: Bouke van der Bijl <me@bou.ke>
2019-09-02 16:07:34 +00:00
Damien Mathieu
94097512db extract blob upload resume into its own method
I've found this logic being in a single method to be quite hard to get.
I believe extracting it makes it easier to read, as we can then more
easily see what the main method does and possibly ignore the intricacies
of `ResumeBlobUpload`.

Signed-off-by: Damien Mathieu <dmathieu@salesforce.com>
2019-06-25 09:25:56 +02:00
Ryan Abrams
0c394fdd84
Merge pull request #2861 from yuwaMSFT2/master
Fixes #2835 Process Accept header MIME types in case-insensitive way
2019-06-19 19:09:29 -07:00
Jesse Brown
74f429a5ad Fix typo: offest -> offset
Signed-off-by: Jesse Brown <jabrown85@gmail.com>
2019-04-05 14:20:20 -05:00
Ryan Abrams
d3ddc3572c
Merge pull request #2854 from manishtomar/log-authed-name
Log authorized username
2019-03-01 14:45:43 -08:00
Ryan Abrams
c192a281f8
Merge pull request #2813 from lucab/ups/spec-json-binary
registry: fix binary JSON content-type
2019-03-01 14:26:54 -08:00
Yu Wang
a683c7c235 Fixes #2835 Process Accept header MIME types in case-insensitive way
Use mime.ParseMediaType to parse the media types in Accept header in manifest request. Ignore the failed ones.

Signed-off-by: Yu Wang <yuwa@microsoft.com>
2019-02-21 15:11:41 -08:00
Manish Tomar
ec6566c02b Log authorized username
This is useful to know which user pulled/pushed which repo.

Signed-off-by: Manish Tomar <manish.tomar@docker.com>
2019-02-13 08:49:37 -08:00
Manish Tomar
da8db4666b Fix gometalint errors
Signed-off-by: Manish Tomar <manish.tomar@docker.com>
2019-02-04 16:01:04 -08:00
Luca Bruno
15b0204758
registry: fix binary JSON content-type
This fixes registry endpoints to return the proper `application/json`
content-type for JSON content, also updating spec examples for that.

As per IETF specification and IANA registry [0], the `application/json`
type is a binary media, so the content-type label does not need any
text-charset selector. Additionally, the media type definition
explicitly states that it has no required nor optional parameters,
which makes the current registry headers non-compliant.

[0]: https://www.iana.org/assignments/media-types/application/json

Signed-off-by: Luca Bruno <lucab@debian.org>
2019-01-14 09:04:42 +00:00
Derek McGowan
aa985ba889
Merge pull request #2711 from davidswu/autoredirect
add autoredirect auth config
2018-11-27 15:48:25 -08:00
Rui Cao
569d18aef9 Fix some typos
Signed-off-by: Rui Cao <ruicao@alauda.io>
2018-09-24 09:05:44 +08:00
Viktor Stanchev
f730f3ab77 add autoredirect auth config
It redirects the user to to the Host header's domain whenever they try to use
token auth.

Signed-off-by: David Wu <david.wu@docker.com>
2018-09-20 14:47:43 -07:00
David Wu
bd41413d57 remove closenotifier
Signed-off-by: David Wu <david.wu@docker.com>
2018-09-11 16:14:10 -07:00
Olivier Gambier
90705d2fb8
Merge pull request #2362 from twistlock/populate_htpasswd
Create and populate htpasswd file if missing
2018-08-31 00:25:37 -07:00
Derek McGowan
b12bd4004a
Merge pull request #2639 from andrew-leung/manifesteventlayers
Add configurable layers in manifest events
2018-08-28 16:03:05 -07:00
Olivier Gambier
3354cf98e3
Merge pull request #2680 from manishtomar/mani-fix-mem-leak
fix memory leak introduced in PR #2648
2018-08-24 14:35:12 -07:00
Derek McGowan
ef859e1b21
Merge pull request #2474 from vikstrous/disable-v1-master
disable schema1 by default, add a config flag to enable it
2018-08-24 10:58:39 -07:00
Andrew Leung
5e4b81a578 Use references terminology instead of layers.
Signed-off-by: Andrew Leung <anwleung@gmail.com>
2018-08-20 10:01:40 -07:00
Manish Tomar
13f8189f2a fix memory leak introduced in PR #2648
context.App.repoRemover is single registry instance stored throughout
app run. It was wrapped in another remover when processing each request.
This remover happened to be remover got from previous request. This way
every remover created was stored in infinite linked list causing memory
leak. Fixing it by storing the wrapped remover inside the request context
which will get gced when request context is gced. This was introduced in
PR #2648.

Signed-off-by: Manish Tomar <manish.tomar@docker.com>
2018-08-14 16:41:45 -07:00
Olivier
0cbe144826
Merge pull request #2602 from dmage/errmessage
Use e.Message field instead of e.Code.Message()
2018-08-09 15:21:32 -07:00
Olivier
4a75b72fd3
Merge pull request #2662 from dmcgowan/enable-structcheck
Enable static checks
2018-08-07 19:01:38 -07:00
Derek McGowan
003aa051b4
Merge pull request #2648 from manishtomar/tag-deleted-event
add repo and tag deletion event
2018-08-07 11:50:56 -07:00
Derek McGowan
db0a4ec1c8
Enable static checks
Signed-off-by: Derek McGowan <derek@mcgstyle.net>
2018-08-06 14:49:11 -07:00
Manish Tomar
8f6758278d take handler update
forgot to commit this earlier

Signed-off-by: Manish Tomar <manish.tomar@docker.com>
2018-08-02 23:13:37 -07:00
Andrew Leung
276fdce3d9 Add configurable layers in manifest events
Signed-off-by: Andrew Leung <anwleung@gmail.com>
2018-06-27 09:27:24 -07:00
Mike Brown
ad7ab0853c folow commit 9c88801a12
Signed-off-by: Mike Brown <brownwm@us.ibm.com>
2018-06-18 13:55:24 -05:00
Mike Brown
ec2aa05cdf addressing comments from stevvooe
Signed-off-by: Mike Brown <brownwm@us.ibm.com>
2018-06-18 13:55:24 -05:00
Mike Brown
6bae7ca597 refactor adding enum for storage types
Signed-off-by: Mike Brown <brownwm@us.ibm.com>
2018-06-18 13:55:24 -05:00
Mike Brown
9e3f78b8c8 addresses minor debug comments
Signed-off-by: Mike Brown <brownwm@us.ibm.com>
2018-06-18 13:55:24 -05:00
Mike Brown
b0cef05626 removes oci. namespace feature
Signed-off-by: Mike Brown <brownwm@us.ibm.com>
2018-06-18 13:55:24 -05:00
Mike Brown
426afb3a4c address get manifest issue with oci. namespace; and comment descriptions
Signed-off-by: Mike Brown <brownwm@us.ibm.com>
2018-06-18 13:55:24 -05:00
Mike Brown
c94f28805e OCI media types; annotation support; oci index
Signed-off-by: Mike Brown <brownwm@us.ibm.com>
2018-06-18 13:48:58 -05:00
Mike Brown
9986e8ca7c adds support for oci manifests and manifestlists
Signed-off-by: Mike Brown <brownwm@us.ibm.com>
2018-06-18 13:48:58 -05:00
Oleg Bulatov
7bc438a534
Use e.Message field instead of e.Code.Message()
Signed-off-by: Oleg Bulatov <oleg@bulatov.me>
2018-06-04 17:29:46 +02:00
Derek McGowan
607ae5d128
Merge pull request #2501 from xiaonancc77/master
Added ignore event types into notifications
2018-03-14 10:37:02 -07:00
elsanli(李楠)
fc1d3647c6 Added ignore event typs into notifications
Signed-off-by: elsanli(李楠) <elsanli@tencent.com>
2018-03-13 16:00:44 +08:00
Stephen Day
6664ec7039
Merge pull request #2466 from tifayuki/prometheus_go_metrics
add prometheus metrics
2018-02-09 15:49:04 -08:00
tifayuki
e3c37a46e2 Add Prometheus Metrics
at the first iteration, only the following metrics are collected:

  - HTTP metrics of each API endpoint
  - cache counter for request/hit/miss
  - histogram of storage actions, including:
    GetContent, PutContent, Stat, List, Move, and Delete

Signed-off-by: tifayuki <tifayuki@gmail.com>
2018-02-09 14:27:51 -08:00
Stephen J Day
585cdeb571
context, registry/handlers: remove net/context references
Signed-off-by: Stephen J Day <stephen.day@docker.com>
2018-01-17 16:01:41 -08:00
Viktor Stanchev
e9864ce8b9 disable schema1 by default, add a config flag to enable it
port of #2473

Signed-off-by: Viktor Stanchev <me@viktorstanchev.com>
2017-12-19 10:23:25 -08:00
Liron Levin
c785740af7 Create and populate htpasswd file if missing
If htpasswd authentication option is configured but the htpasswd file is
missing, populate it with a default user and automatically generated
password.
The password will be printed to stdout.

Signed-off-by: Liron Levin <liron@twistlock.com>
2017-11-01 12:30:25 +02:00
Stephen J Day
1618b49d5b
registry/handlers: ignore notfound on storage driver healthcheck
Signed-off-by: Stephen J Day <stephen.day@docker.com>
2017-08-21 15:04:31 -07:00
Stephen J Day
9c88801a12
context: remove definition of Context
Back in the before time, the best practices surrounding usage of Context
weren't quite worked out. We defined our own type to make usage easier.
As this packaged was used elsewhere, it make it more and more
challenging to integrate with the forked `Context` type. Now that it is
available in the standard library, we can just use that one directly.

To make usage more consistent, we now use `dcontext` when referring to
the distribution context package.

Signed-off-by: Stephen J Day <stephen.day@docker.com>
2017-08-11 15:53:31 -07:00
Derek McGowan
edc3ab29cd Merge pull request #2316 from igmor/logrus_case_dep_update
Update logrus and logrus-logstash-hook libraries
2017-07-26 10:46:10 -07:00
Stephen J Day
55ea440428
registry/{storage,handlers}: limit content sizes
Under certain circumstances, the use of `StorageDriver.GetContent` can
result in unbounded memory allocations. In particualr, this happens when
accessing a layer through the manifests endpoint.

This problem is mitigated by setting a 4MB limit when using to access
content that may have been accepted from a user. In practice, this means
setting the limit with the use of `BlobProvider.Get` by wrapping
`StorageDriver.GetContent` in a helper that uses `StorageDriver.Reader`
with a `limitReader` that returns an error.

When mitigating this security issue, we also noticed that the size of
manifests uploaded to the registry is also unlimited. We apply similar
logic to the request body of payloads that are full buffered.

Signed-off-by: Stephen J Day <stephen.day@docker.com>
2017-07-06 17:13:39 -07:00
Igor Morozov
a97d7c0c15 moved Sirupsen to sirupsen on a case sensitive system
Signed-off-by: Igor Morozov <igor@adhoc05-sjc1.prod.uber.internal>
2017-06-23 20:28:48 +00:00
Oleg Bulatov
5b1b6afae2 Update Docker-Content-Digest if manifest list is rewritten
If the client doesn't support manifest lists, the registry will
rewrite a manifest list into the old format. The Docker-Content-Digest
header should be updated in this case.

Signed-off-by: Oleg Bulatov <oleg@bulatov.me>
2017-06-16 16:20:14 +02:00
Troels Thomsen
1935c8d50b Return early to prevent nil pointer dereference
Signed-off-by: Troels Thomsen <troels@thomsen.io>
2017-04-27 14:59:37 +02:00
Stephen J Day
1f0a9dbca0
register/handlers: remove context manager
Signed-off-by: Stephen J Day <stephen.day@docker.com>
2017-04-10 15:27:30 -07:00
Derek McGowan
1bcc73251d
Update handler test to use WithName
Fix test panic in handler test.

Signed-off-by: Derek McGowan <derek@mcgstyle.net> (github: dmcgowan)
2017-01-19 15:21:40 -08:00
Derek McGowan
11cb04e994 Merge pull request #2142 from dmcgowan/reference-enforce-canonical-parsing
reference: ParseNamed updated to enforce canonical format
2017-01-18 17:06:08 -08:00
Derek McGowan
d8fcbeeb71
Update registry to use WithName for creating Named values
The registry uses partial Named values which the named parsers
no longer support. To allow the registry service to continue
to operate without canonicalization, switch to use WithName.
In the future, the registry should start using fully canonical
values on the backend and WithName should no longer support
creating partial values.

Signed-off-by: Derek McGowan <derek@mcgstyle.net> (github: dmcgowan)
2017-01-18 13:56:56 -08:00
yuwaMSFT2
0bb696c5bf add test for manifest handler where storage driver fails
Signed-off-by: Yu Wang (UC) <yuwa@microsoft.com>
2017-01-18 11:39:45 -08:00
Yu Wang (UC)
2e94c22fe4 issue#2135 image pull returns 404 on manifest request if there is storage error
When get manifest, the handler will try to retrieve it from storage driver. When storage driver is cloud storage, it can fail due to various reasons even if the manifest exists
(like 500, 503, etc. from storage server). Currently manifest handler blindly return 404 which can be confusing to user.

This change will return 404 if the manifest blob doesn't exist, and return 500 UnknownError for all other errors (consistent with the behavior of other handlers).

Signed-off-by: Yu Wang (UC) <yuwa@microsoft.com>
2017-01-11 12:34:11 -08:00
Stephen J Day
c91a68ca05
registy/handlers: move images to manifests
Once upon a time, we referred to manifests and images interchangably.
That simple past is no more. As we grow, we update our nomenclature and
so follows our code.

Signed-off-by: Stephen J Day <stephen.day@docker.com>
2017-01-10 16:09:15 -08:00
Derek McGowan
2bc4a9459c Merge pull request #2121 from nwt/delete-action
Change DELETE action from "*" to "delete"
2017-01-09 12:34:23 -08:00
Stephen Day
7dba427612 Merge pull request #2111 from stevvooe/use-digest-package
digest: use new go-digest package
2017-01-06 16:25:57 -08:00
Stephen J Day
532ec9f036
digest: migrate to opencontainers/go-digest
Signed-off-by: Stephen J Day <stephen.day@docker.com>
2017-01-06 15:42:03 -08:00
Noah Treuhaft
ccb839e0e3 Change DELETE action from "*" to "delete"
With token authentication, requiring the "*" action for DELETE requests
makes it impossible to administratively lock a repository against pushes
and pulls but still allow deletion.  This change adds a new "delete"
action for DELETE requests to make that possible.

Signed-off-by: Noah Treuhaft <noah.treuhaft@docker.com>
2017-01-03 12:27:12 -08:00
yixi zhang
8e915d69f4 Use app.driver.Stat for registry health check
`app.driver.List` on `"/"` is very expensive if registry contains significant amount of images. And the result isn't used anyways.
In most (if not all) storage drivers, `Stat` has a cheaper implementation, so use it instead to achieve the same goal.

Signed-off-by: yixi zhang <yixi@memsql.com>
2016-12-21 17:12:43 -08:00
Stephen J Day
1040c824ba
registry/handlers: fix incorrect use of Digest.Verifiers
Signed-off-by: Stephen J Day <stephen.day@docker.com>
2016-12-15 18:33:26 -08:00
Derek McGowan
729b8c5b91 Merge pull request #2105 from stevvooe/algorithm-own-file
digest: cleanup digester and verifier creation
2016-12-15 16:55:37 -08:00
Stephen J Day
e37baed88e
digest: cleanup digester and verifier creation
Signed-off-by: Stephen J Day <stephen.day@docker.com>
2016-12-15 15:17:21 -08:00
Stephen J Day
01dfa0fcb9
digest: use digest.Parse over ParseDigest
Signed-off-by: Stephen J Day <stephen.day@docker.com>
2016-12-15 15:07:42 -08:00
Derek McGowan
8867e8fac3
Update schema2 builder to take media type
Modify manifest builder so it can be used to build
manifests with different configuration media types.
Rename config media type const to image config.

Signed-off-by: Tonis Tiigi <tonistiigi@gmail.com>
Signed-off-by: Derek McGowan <derek@mcgstyle.net>
2016-12-14 16:17:20 -08:00
Antonio Murdaca
0fb25dd094
registry/handles/app: always append default urls regexps
Signed-off-by: Antonio Murdaca <runcom@redhat.com>
2016-12-05 20:28:51 +01:00
Derek McGowan
e02278f22a
Update registry server to support repository class
Use whitelist of allowed repository classes to enforce.
By default all repository classes are allowed.

Add authorized resources to context after authorization.

Signed-off-by: Derek McGowan <derek@mcgstyle.net> (github: dmcgowan)
2016-11-21 16:36:36 -08:00
Stephen J Day
c9aaff00f8
manifest: references should cover all children
To allow generic manifest walking, we define an interface method of
`References` that returns the referenced items in the manifest. The
current implementation does not return the config target from schema2,
making this useless for most applications.

The garbage collector has been modified to show the utility of this
correctly formed `References` method. We may be able to make more
generic traversal methods with this, as well.

Signed-off-by: Stephen J Day <stephen.day@docker.com>
2016-10-18 11:43:33 -07:00
Derek McGowan
d35d94dcec
Update to fix lint errors
Context should use type values instead of strings.
Updated direct calls to WithValue, but still other uses of string keys.
Update Acl to ACL in s3 driver.

Signed-off-by: Derek McGowan <derek@mcgstyle.net> (github: dmcgowan)
2016-10-05 17:47:12 -07:00
Noah Treuhaft
ad6bb66faf Add notification filtering by target media type
The Hub registry generates a large volume of notifications, many of
which are uninteresting based on target media type.  Discarding them
within the notification endpoint consumes considerable resources that
could be saved by discarding them within the registry.  To that end,
this change adds registry configuration options to restrict the
notifications sent to an endpoint based on target media type.

Signed-off-by: Noah Treuhaft <noah.treuhaft@docker.com>
2016-09-16 12:01:03 -07:00
Stephen Day
5e8d18f615 Merge pull request #1945 from stevvooe/better-report-on-invalid-secret
handlers: provide better log message on mismatched secret
2016-09-07 12:55:48 -07:00
Stephen J Day
668b0a5f40
handlers: provide better log message on mismatched secret
Signed-off-by: Stephen J Day <stephen.day@docker.com>
2016-09-02 15:24:35 -07:00
Derek McGowan
798b7331ca Add shutdown to test environment
Ensures test http server is fully closed before moving on with test.

Signed-off-by: Derek McGowan <derek@mcgstyle.net> (github: dmcgowan)
2016-08-26 16:23:07 -07:00
Derek McGowan
38ee36eee4 Disable upload purging during test
Signed-off-by: Derek McGowan <derek@mcgstyle.net> (github: dmcgowan)
2016-08-26 16:23:07 -07:00
Edgar Lee
379312c148 Stop ErrFinishedWalk from escaping from Repositories walk
Signed-off-by: Edgar Lee <edgar.lee@docker.com>
2016-08-05 17:21:48 -07:00
Richard Scothern
2b72dd3927 Merge pull request #1829 from nwt/foreign-layer-host-whitelist
Add a foreign layer URL host whitelist
2016-07-21 16:02:20 -07:00
Noah Treuhaft
61e5803b56 Add control over validation of URLs in pushed manifests
Until we have some experience hosting foreign layer manifests, the Hub
operators wish to limit foreign layers on Hub. To that end, this change
adds registry configuration options to restrict the URLs that may appear
in pushed manifests.

Signed-off-by: Noah Treuhaft <noah.treuhaft@docker.com>
2016-07-19 14:38:42 -07:00
Edgar Lee
a82f661ef0 Use typecast over reflect for error type checking
Signed-off-by: Edgar Lee <edgar.lee@docker.com>
2016-07-14 15:03:18 -07:00
Edgar Lee
aeb9a29499 Handle new errors returned from catalog repository listing
Signed-off-by: Edgar Lee <edgar.lee@docker.com>
2016-07-14 13:24:16 -07:00
Cezar Sa Espinola
e015cbadd6
registry: avoid formatting errors with %#v
Signed-off-by: Cezar Sa Espinola <cezarsa@gmail.com>
2016-07-01 11:30:58 -03:00
Richard Scothern
ccfa25cf00 If resumable digest support is disabled, detct this when closing the blobwriter
and allow the close to continue.  Also update the name of the function.

Signed-off-by: Richard Scothern <richard.scothern@docker.com>
2016-06-13 17:35:06 -07:00