Commit Graph

1367 Commits

Author SHA1 Message Date
Stephen J Day
d4c50637f9 Better error message when failing to get AWS auth
Signed-off-by: Stephen J Day <stephen.day@docker.com>
2015-05-22 16:45:45 -07:00
Tibor Vass
a1ade52bb6 registry: fix auth bug
Signed-off-by: Tibor Vass <tibor@docker.com>
2015-05-21 16:53:22 -04:00
Stephen Day
25fb44fb8b Merge pull request #542 from stevvooe/decouple-redis-from-cache
Decouple redis dependency from blob descriptor cache
2015-05-21 11:41:04 -07:00
Stephen J Day
a0d242d9df Remove digest package's dependency on external sha implementation
The change relies on a refactor of the upstream resumable sha256/sha512 package
that opts to register implementations with the standard library. This allows
the resumable support to be detected where it matters, avoiding unnecessary and
complex code. It also ensures that consumers of the digest package don't need
to depend on the forked sha implementations.

We also get an optimization with this change. If the size of data written to a
digester is the same as the file size, we check to see if the digest has been
verified. This works if the blob is written and committed in a single request.

Signed-off-by: Stephen J Day <stephen.day@docker.com>
2015-05-20 23:44:08 -07:00
Stephen J Day
812c8099a6 Decouple redis dependency from blob descriptor cache
Ensure that clients can use the blob descriptor cache provider without needing
the redis package.

Signed-off-by: Stephen J Day <stephen.day@docker.com>
2015-05-20 18:58:10 -07:00
Derek McGowan
fd982a8bd5 Merge pull request #543 from tiborvass/fix-typo-in-client
client: fix a typo preventing compilation
2015-05-20 18:13:17 -07:00
Tibor Vass
cd5430916f client: fix a typo preventing compilation
Signed-off-by: Tibor Vass <teabee89@gmail.com>
2015-05-20 21:06:13 -04:00
Stephen Day
e2596ca75e Merge pull request #387 from dmcgowan/registry-client-update
Add client implementation of distribution interface
2015-05-20 15:55:20 -07:00
Derek McGowan
754a8e80f2 Remove error message shortening
Signed-off-by: Derek McGowan <derek@mcgstyle.net> (github: dmcgowan)
2015-05-20 14:55:59 -07:00
Derek McGowan
aac3ce46c7 Only do auth checks for endpoints starting with v2
Changes behavior so ping doesn't happen if /v2/ is anywhere in a request path, but instead only at the beginning. This fixes attempts to ping on redirected URLs.

Signed-off-by: Derek McGowan <derek@mcgstyle.net> (github: dmcgowan)
2015-05-20 13:35:23 -07:00
Derek McGowan
7e4d5eafae Update transport package to sever distribution dependency
The transport package no longer requires importing distribution for the ReadSeekCloser, instead declares its own.
Added comments on the Authenication handler in session.
Added todo on http seek reader to highlight its lack of belonging to the client transport.

Signed-off-by: Derek McGowan <derek@mcgstyle.net> (github: dmcgowan)
2015-05-20 10:09:37 -07:00
Derek McGowan
3b5a2bbebc Add unauthorized error check
Add check for unauthorized error code and explicitly set the error code if the content could not be parsed.
Updated repository test for unauthorized tests and nit feedback.

Signed-off-by: Derek McGowan <derek@mcgstyle.net> (github: dmcgowan)
2015-05-20 10:05:44 -07:00
Jessie Frazelle
29dc5eef53 Merge pull request #13354 from jacobat/comment-fix
Fix wording in comment
2015-05-20 09:44:23 -07:00
Jacob Atzen
07e5885de1 Fix wording in comment
Signed-off-by: Jacob Atzen <jatzen@gmail.com>
2015-05-20 18:03:46 +02:00
Derek McGowan
b4972a6bab Break down type dependencies
Each type no longer requires holding a reference to repository.
Added implementation for signatures get.

Signed-off-by: Derek McGowan <derek@mcgstyle.net> (github: dmcgowan)
2015-05-19 19:56:27 -07:00
Derek McGowan
8db2145b81 Feedback update
Update comments and TODOs
Fix switch style
Updated parse http response to take in reader
Add Cancel implementation
Update blobstore variable name

Signed-off-by: Derek McGowan <derek@mcgstyle.net> (github: dmcgowan)
2015-05-19 19:18:30 -07:00
Vincent Giersch
2c1a83f940 Storage Driver: Ceph Object Storage (RADOS)
This driver implements the storagedriver.StorageDriver interface and
uses Ceph Object Storage as storage backend.

Since RADOS is an object storage and no hierarchy notion, the
following convention is used to keep the filesystem notions stored in
this backend:

* All the objects data are stored with opaque UUID names prefixed
  (e.g. "blob:d3d232ff-ab3a-4046-9ab7-930228d4c164).
* All the hierarchy information are stored in rados omaps, where the
  omap object identifier is the virtual directory name, the keys in
  a specific are the relative filenames and the values the blob
  object identifier (or empty value for a sub directory).

  e.g. For the following hierarchy:

     /directory1
     /directory1/object1
     /directory1/object2
     /directory1/directory2/object3

  The omap "/directory1" will contains the following key / values:
    - "object1" "blob:d3d232ff-ab3a-4046-9ab7-930228d4c164"
    - "object2" "blob:db2e359d-4af0-4bfb-ba1d-d2fd029866a0"
    - "directory2" ""

  The omap "/directory1/directory2" will contains:
    - "object3" "blob:9ae2371c-81fc-4945-80ac-8bf7f566a5d9"

* The MOVE is implemented by changing the reference to a specific
  blob in its parent virtual directory omap.

This driver stripes rados objects to a fixed size (e.g. 4M). The idea
is to keep small objects (as done by RBD on the top of RADOS) that
will be easily synchronized accross OSDs. The information of the
original object (i.e total size of the chunks) is stored as a Xattr
in the first chunk object.

Signed-off-by: Vincent Giersch <vincent.giersch@ovh.net>
2015-05-20 01:44:34 +00:00
Stephen Day
68c94c324a Merge pull request #534 from liggitt/respository_typo
Fix typo: respository->repository
2015-05-19 12:07:24 -07:00
Arnaud Porterie
38f0c6fa8a Windows: fix registry filepath and location
Signed-off-by: Arnaud Porterie <arnaud.porterie@docker.com>
2015-05-19 10:58:45 -07:00
Jordan Liggitt
ea39e34804 Fix typo: respository->repository
Signed-off-by: Jordan Liggitt <jliggitt@redhat.com>
2015-05-19 13:25:39 -04:00
Tibor Vass
808c87ce27 Add transport package to support CancelRequest
Signed-off-by: Tibor Vass <tibor@docker.com>
2015-05-18 23:31:42 -04:00
Tibor Vass
9e6affc364 requestdecorator: repurpose the package and rename to useragent
Signed-off-by: Tibor Vass <tibor@docker.com>
2015-05-18 21:51:54 -04:00
Tibor Vass
89bd48481c registry: Refactor requestfactory to use http.RoundTrippers
This patch removes the need for requestFactories and decorators
by implementing http.RoundTripper transports instead.

It refactors some challenging-to-read code.

NewSession now takes an *http.Client that can already have a
custom Transport, it will add its own auth transport by wrapping
it.

The idea is that callers of http.Client should not bother
setting custom headers for every handler but instead it should
be transparent to the callers of a same context.

This patch is needed for future refactorings of registry,
namely refactoring of the v1 client code.

Signed-off-by: Tibor Vass <tibor@docker.com>
2015-05-18 21:51:53 -04:00
Doug Davis
f13f3a774f Merge pull request #13308 from lightsofapollo/issue-13307
Increase default connection timeout to 30s
2015-05-18 18:01:00 -04:00
James Lal
3c34b3c87e Increase default connection timeout to 30s
Closes #13307
Signed-off-by: James Lal <jlal@mozilla.com>
2015-05-18 13:26:33 -07:00
Derek McGowan
eb2ac4301f Lint and documentation fixes
Signed-off-by: Derek McGowan <derek@mcgstyle.net> (github: dmcgowan)
2015-05-15 17:56:28 -07:00
Derek McGowan
131b608aeb Create client transport package
Signed-off-by: Derek McGowan <derek@mcgstyle.net> (github: dmcgowan)
2015-05-15 17:56:28 -07:00
Derek McGowan
e0e13209d8 Remove unused and duplicate error types
Signed-off-by: Derek McGowan <derek@mcgstyle.net> (github: dmcgowan)
2015-05-15 17:56:28 -07:00
Derek McGowan
296a8415b9 Update to track refactor updates
Added use of cache blob statter

Signed-off-by: Derek McGowan <derek@mcgstyle.net> (github: dmcgowan)
2015-05-15 17:56:28 -07:00
Derek McGowan
568df315ff Open cache interface
Signed-off-by: Derek McGowan <derek@mcgstyle.net> (github: dmcgowan)
2015-05-15 17:56:28 -07:00
Derek McGowan
60b314ade5 Rename layer files to blob
Signed-off-by: Derek McGowan <derek@mcgstyle.net> (github: dmcgowan)
2015-05-15 17:56:28 -07:00
Derek McGowan
67e2e83434 Update to use blob interfaces
Signed-off-by: Derek McGowan <derek@mcgstyle.net> (github: dmcgowan)
2015-05-15 17:56:28 -07:00
Derek McGowan
6bf4c45e52 Add missing defer on Tags
Signed-off-by: Derek McGowan <derek@mcgstyle.net> (github: dmcgowan)
2015-05-15 17:56:28 -07:00
Derek McGowan
89c396e0f5 Simplify configuration and transport
Repository creation now just takes in an http.RoundTripper. Authenticated requests or requests which require additional headers should use the NewTransport function along with a request modifier (such an an authentication handler).

Signed-off-by: Derek McGowan <derek@mcgstyle.net> (github: dmcgowan)
2015-05-15 17:56:28 -07:00
Derek McGowan
8b0ea19d39 Add base transport to interface
Signed-off-by: Derek McGowan <derek@mcgstyle.net> (github: dmcgowan)
2015-05-15 17:56:28 -07:00
Derek McGowan
a9b0f49c8b Removed unused mirror flags
Signed-off-by: Derek McGowan <derek@mcgstyle.net> (github: dmcgowan)
2015-05-15 17:56:28 -07:00
Derek McGowan
17cbbf648f Update ReadFrom to wrap reader in NopCloser
Wrapping the reader in a NopCloser is necessary to prevent the http library from closing the input reader.

Signed-off-by: Derek McGowan <derek@mcgstyle.net> (github: dmcgowan)
2015-05-15 17:56:27 -07:00
Derek McGowan
ecaa643cb2 Create authentication handler
Refactory authorizer to take a set of authentication handlers for different authentication schemes returned by an unauthorized HTTP requst.

Signed-off-by: Derek McGowan <derek@mcgstyle.net> (github: dmcgowan)
2015-05-15 17:56:27 -07:00
Derek McGowan
7d630192dd Add tags implementation
Signed-off-by: Derek McGowan <derek@mcgstyle.net> (github: dmcgowan)
2015-05-15 17:56:27 -07:00
Derek McGowan
2eb9b286ed Use distribution context instead of google
Signed-off-by: Derek McGowan <derek@mcgstyle.net> (github: dmcgowan)
2015-05-15 17:56:27 -07:00
Derek McGowan
b78727cbf9 Cleanup session and config interface
Signed-off-by: Derek McGowan <derek@mcgstyle.net> (github: dmcgowan)
2015-05-15 17:56:27 -07:00
Derek McGowan
07cee840a4 Split layer and upload from repository
Layer upload moved to its own file with its own unit tests

Signed-off-by: Derek McGowan <derek@mcgstyle.net> (github: dmcgowan)
2015-05-15 17:56:27 -07:00
Derek McGowan
03e0873125 Add unit tests for auth challenge and endpoint
Signed-off-by: Derek McGowan <derek@mcgstyle.net> (github: dmcgowan)
2015-05-15 17:56:27 -07:00
Derek McGowan
837a12db15 Remove deprecated client interface
Signed-off-by: Derek McGowan <derek@mcgstyle.net> (github: dmcgowan)
2015-05-15 17:56:27 -07:00
Derek McGowan
4c8e4dc373 Add client implementation of distribution interface
Adds functionality to create a Repository client which connects to a remote endpoint.

Signed-off-by: Derek McGowan <derek@mcgstyle.net> (github: dmcgowan)
2015-05-15 17:56:27 -07:00
Stephen Day
24f607cdf4 Merge pull request #519 from stevvooe/blob-service-refactor
Refactor Blob Service API
2015-05-15 17:52:15 -07:00
Stephen J Day
08401cfdd6 Refactor Blob Service API
This PR refactors the blob service API to be oriented around blob descriptors.
Identified by digests, blobs become an abstract entity that can be read and
written using a descriptor as a handle. This allows blobs to take many forms,
such as a ReadSeekCloser or a simple byte buffer, allowing blob oriented
operations to better integrate with blob agnostic APIs (such as the `io`
package). The error definitions are now better organized to reflect conditions
that can only be seen when interacting with the blob API.

The main benefit of this is to separate the much smaller metadata from large
file storage. Many benefits also follow from this. Reading and writing has
been separated into discrete services. Backend implementation is also
simplified, by reducing the amount of metadata that needs to be picked up to
simply serve a read. This also improves cacheability.

"Opening" a blob simply consists of an access check (Stat) and a path
calculation. Caching is greatly simplified and we've made the mapping of
provisional to canonical hashes a first-class concept. BlobDescriptorService
and BlobProvider can be combined in different ways to achieve varying effects.

Recommend Review Approach
-------------------------

This is a very large patch. While apologies are in order, we are getting a
considerable amount of refactoring. Most changes follow from the changes to
the root package (distribution), so start there. From there, the main changes
are in storage. Looking at (*repository).Blobs will help to understand the how
the linkedBlobStore is wired. One can explore the internals within and also
branch out into understanding the changes to the caching layer. Following the
descriptions below will also help to guide you.

To reduce the chances for regressions, it was critical that major changes to
unit tests were avoided. Where possible, they are left untouched and where
not, the spirit is hopefully captured. Pay particular attention to where
behavior may have changed.

Storage
-------

The primary changes to the `storage` package, other than the interface
updates, were to merge the layerstore and blobstore. Blob access is now
layered even further. The first layer, blobStore, exposes a global
`BlobStatter` and `BlobProvider`. Operations here provide a fast path for most
read operations that don't take access control into account. The
`linkedBlobStore` layers on top of the `blobStore`, providing repository-
scoped blob link management in the backend. The `linkedBlobStore` implements
the full `BlobStore` suite, providing access-controlled, repository-local blob
writers. The abstraction between the two is slightly broken in that
`linkedBlobStore` is the only channel under which one can write into the global
blob store. The `linkedBlobStore` also provides flexibility in that it can act
over different link sets depending on configuration. This allows us to use the
same code for signature links, manifest links and blob links.  Eventually, we
will fully consolidate this storage.

The improved cache flow comes from the `linkedBlobStatter` component
of `linkedBlobStore`. Using a `cachedBlobStatter`, these combine together to
provide a simple cache hierarchy that should streamline access checks on read
and write operations, or at least provide a single path to optimize. The
metrics have been changed in a slightly incompatible way since the former
operations, Fetch and Exists, are no longer relevant.

The fileWriter and fileReader have been slightly modified to support the rest
of the changes. The most interesting is the removal of the `Stat` call from
`newFileReader`. This was the source of unnecessary round trips that were only
present to look up the size of the resulting reader. Now, one must simply pass
in the size, requiring the caller to decide whether or not the `Stat` call is
appropriate. In several cases, it turned out the caller already had the size
already. The `WriterAt` implementation has been removed from `fileWriter`,
since it is no longer required for `BlobWriter`, reducing the number of paths
which writes may take.

Cache
-----

Unfortunately, the `cache` package required a near full rewrite. It was pretty
mechanical in that the cache is oriented around the `BlobDescriptorService`
slightly modified to include the ability to set the values for individual
digests. While the implementation is oriented towards caching, it can act as a
primary store. Provisions are in place to have repository local metadata, in
addition to global metadata. Fallback is implemented as a part of the storage
package to maintain this flexibility.

One unfortunate side-effect is that caching is now repository-scoped, rather
than global. This should have little effect on performance but may increase
memory usage.

Handlers
--------

The `handlers` package has been updated to leverage the new API. For the most
part, the changes are superficial or mechanical based on the API changes. This
did expose a bug in the handling of provisional vs canonical digests that was
fixed in the unit tests.

Configuration
-------------

One user-facing change has been made to the configuration and is updated in
the associated documentation. The `layerinfo` cache parameter has been
deprecated by the `blobdescriptor` cache parameter. Both are equivalent and
configuration files should be backward compatible.

Notifications
-------------

Changes the `notification` package are simply to support the interface
changes.

Context
-------

A small change has been made to the tracing log-level. Traces have been moved
from "info" to "debug" level to reduce output when not needed.

Signed-off-by: Stephen J Day <stephen.day@docker.com>
2015-05-15 17:05:18 -07:00
Lei Jitang
351babbf07 Fix invalid tag name
Signed-off-by: Lei Jitang <leijitang@huawei.com>
2015-05-13 14:28:52 +08:00
Stephen Day
dc348d720b Merge pull request #518 from RichardScothern/cache-headers
Set cache headers for layers.
2015-05-12 18:32:16 -07:00
Richard
2db0327dc1 Set cache headers for layers.
- Set an Etag header
     - Check If-None-Match and respond appropriately
     - Set a Cache-Control header with a default of 1 week

Signed-off-by: Richard Scothern <richard.scothern@gmail.com>
2015-05-12 17:49:18 -07:00