Commit graph

28 commits

Author SHA1 Message Date
John Starks
dd66aabeba Add support for layers from foreign sources
This will be used to support downloading Windows base layers from
Microsoft URLs.

Signed-off-by: John Starks <jostarks@microsoft.com>
2016-05-20 12:31:10 -07:00
Tony Holdstock-Brown
cbae4dd7bf 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
13adc62fae Merge pull request #1502 from RichardScothern/auth-url-endpoints
URL parse auth endpoints to normalize hostname to lowercase.
2016-03-14 16:28:24 -07:00
Richard Scothern
e09891e2cf URL parse auth endpoints to normalize hostname to lowercase.
It is possible for a middlebox to lowercase the URL at somepoint causing a
lookup in the auth challenges table to fail.  Lowercase hostname before
using as keys to challenge map.

Signed-off-by: Richard Scothern <richard.scothern@gmail.com>
2016-03-07 14:08:21 -08:00
Derek McGowan
f49bf18768 Fetch token by credentials and refresh token
Signed-off-by: Derek McGowan <derek@mcgstyle.net> (github: dmcgowan)
2016-03-04 00:34:17 -08:00
Andrew T Nguyen
b7d3424103 Implements garbage collection subcommand
- Includes a change in the command to run the registry. The registry
  server itself is now started up as a subcommand.
- Includes changes to the high level interfaces to support enumeration
  of various registry objects.

Signed-off-by: Andrew T Nguyen <andrew.nguyen@docker.com>
2016-02-29 14:15:21 -08:00
Brian Bland
bb4d128523 Merge pull request #1482 from stweil/master
Fix some typos in comments and strings
2016-02-23 14:08:21 -08:00
Stefan Weil
d16f3046c6 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
Richard Scothern
29e0411f00 Enable proxying registries to downgrade fetched manifests to Schema 1.
Ensure Accept headers are sent with TagService.Get (which hits manifest
endpoints).  Add support for remote Get and Put for the proxied blobstore.

Signed-off-by: Richard Scothern <richard.scothern@gmail.com>
2016-02-22 17:56:48 -08:00
Richard Scothern
18fd1c0702 Extend authChallenger interface to remove type cast.
Signed-off-by: Richard Scothern <richard.scothern@gmail.com>
2016-02-17 13:07:14 -08:00
Richard Scothern
7d16fee7a4 To avoid any network use unless necessary, delay establishing authorization
challenges with the upstream until any proxied data is found not to be local.

Implement auth challenges behind an interface and add to unit tests.  Also,
remove a non-sensical unit test.

Signed-off-by: Richard Scothern <richard.scothern@docker.com>
2016-02-16 11:53:42 -08:00
Aaron Lehmann
6158eb544d Rename Name method of Repository to Named
This makes code that gets the name as a string read like
repo.Named().Name() instead of repo.Name().Name().

Requested in
https://github.com/docker/docker/pull/19887#discussion_r51479753

Signed-off-by: Aaron Lehmann <aaron.lehmann@docker.com>
2016-02-04 09:55:36 -08:00
Richard Scothern
3e570e59f1 Invalidate the blob store descriptor caches when content is removed from from
the proxy.  Also, switch to reference in the scheduler API.

Signed-off-by: Richard Scothern <richard.scothern@gmail.com>
2016-01-26 17:02:59 -08:00
Aaron Lehmann
e9692b8037 Use reference package internally
Most places in the registry were using string types to refer to
repository names. This changes them to use reference.Named, so the type
system can enforce validation of the naming rules.

Signed-off-by: Aaron Lehmann <aaron.lehmann@docker.com>
2016-01-22 14:47:05 -08:00
Brian Bland
36023174db Adds functional options arguments to the Blobs Create method
Removes the Mount operation and instead implements this behavior as part
of Create a From option is provided, which in turn returns a rich
ErrBlobMounted indicating that a blob upload session was not initiated,
but instead the blob was mounted from another repository

Signed-off-by: Brian Bland <brian.bland@docker.com>
2016-01-13 16:42:59 -08:00
Brian Bland
41e30f626b Adds cross-repository blob mounting behavior
Extends blob upload POST endpoint to support mount and from query
parameters as described in #634

Signed-off-by: Brian Bland <brian.bland@docker.com>
2016-01-08 13:53:18 -08:00
Richard Scothern
8efb9ca329 Implementation of the Manifest Service API refactor.
Add a generic Manifest interface to represent manifests in the registry and
remove references to schema specific manifests.

Add a ManifestBuilder to construct Manifest objects. Concrete manifest builders
will exist for each manifest type and implementations will contain manifest
specific data used to build a manifest.

Remove Signatures() from Repository interface.

Signatures are relevant only to schema1 manifests.  Move access to the signature
store inside the schema1 manifestStore.  Add some API tests to verify
signature roundtripping.

schema1
-------

Change the way data is stored in schema1.Manifest to enable Payload() to be used
to return complete Manifest JSON from the HTTP handler without knowledge of the
schema1 protocol.

tags
----

Move tag functionality to a seperate TagService and update ManifestService
to use the new interfaces.  Implement a driver based tagService to be backward
compatible with the current tag service.

Add a proxyTagService to enable the registry to get a digest for remote manifests
from a tag.

manifest store
--------------

Remove revision store and move all signing functionality into the signed manifeststore.

manifest registration
---------------------

Add a mechanism to register manifest media types and to allow different manifest
types to be Unmarshalled correctly.

client
------

Add ManifestServiceOptions to client functions to allow tags to be passed into Put and
Get for building correct registry URLs.  Change functional arguments to be an interface type
to allow passing data without mutating shared state.

Signed-off-by: Richard Scothern <richard.scothern@gmail.com>

Signed-off-by: Richard Scothern <richard.scothern@docker.com>
2015-12-17 17:09:14 -08:00
Aaron Lehmann
58232e50cf Simplify digest.FromBytes calling convention
The current implementation of digest.FromBytes returns an error. This
error can never be non-nil, but its presence in the function signature
means each call site needs error handling code for an error that is
always nil.

I verified that none of the hash.Hash implementations in the standard
library can return an error on Write. Nor can any of the hash.Hash
implementations vendored in distribution.

This commit changes digest.FromBytes not to return an error. If Write
returns an error, it will panic, but as discussed above, this should
never happen.

This commit also avoids using a bytes.Reader to feed data into the hash
function in FromBytes. This makes the hypothetical case that would panic
a bit more explicit, and should also be more performant.

Signed-off-by: Aaron Lehmann <aaron.lehmann@docker.com>
2015-12-14 14:30:51 -08:00
Richard Scothern
00f02b5fbc Buffer writing the scheduler entry state to disk by periodically checking for
changes to the entries index and saving it to the filesystem.

Signed-off-by: Richard Scothern <richard.scothern@gmail.com>
2015-10-29 11:35:52 -07:00
Richard Scothern
cbf1f0797c Merge pull request #1096 from aaronlehmann/simplify-proxy-scheduler
Simplify proxy scheduler
2015-10-28 13:23:00 -07:00
Aaron Lehmann
84595fc628 Simplify proxy scheduler
The proxy scheduler implemented its own timer state machine. It's
simpler and more efficient to leverage the Go runtime's timer heap by
using time.AfterFunc.

This commit adds a time.Timer to each scheduler entry, and starts and
stops those timers as necessary. Then the mainloop goroutine and its
associated logic are not needed.

Signed-off-by: Aaron Lehmann <aaron.lehmann@docker.com>
2015-10-15 09:18:21 -07:00
Richard Scothern
36fa22c821 Fix a race condition in pull through cache population by removing the functionality
of readers joining current downloads.  Concurrent requests for the same blob
will not block, but only the first instance will be comitted locally.

Signed-off-by: Richard Scothern <richard.scothern@gmail.com>
2015-10-08 16:12:29 -07:00
Richard Scothern
b8a1ec4155 Avoid returning nil, nil when fetching a manifest by tag by introducing a new
error ErrManifestNotModified which can be checked by clients.

Signed-off-by: Richard Scothern <richard.scothern@gmail.com>
2015-09-18 16:19:37 -07:00
Stephen J Day
bb098c72a2 Move manifest package to schema1
As we begin our march towards multi-arch, we must prepare for the reality of
multiple manifest schemas. This is the beginning of a set of changes to
facilitate this. We are both moving this package into its target position where
it may live peacefully next to other manfiest versions.

Signed-off-by: Stephen J Day <stephen.day@docker.com>
2015-08-21 16:29:47 -07:00
Aaron Lehmann
7fb68446cc Functional options for NewRegistryWithDriver
Clean up calling convention for NewRegistryWithDriver to use functional
arguments.

This is a first step towards the refactor described in #215. I plan to
add additional options in the process of moving configurable items from
the App structure to the registry structure.

Signed-off-by: Aaron Lehmann <aaron.lehmann@docker.com>
2015-08-19 11:06:30 -07:00
Richard Scothern
43fc9a195d Change some incorrect error types in proxy stores from API errors to
distribution errors.  Fill in missing checks for mutations on a registry pull-through
cache.  Add unit tests and update documentation.

Also, give v2.ErrorCodeUnsupported an HTTP status code, previously it was
defaulting to 500, now its 405 Method Not Allowed.

Signed-off-by: Richard Scothern <richard.scothern@gmail.com>
2015-08-11 14:16:24 -07:00
Stephen J Day
ed3ecfdccb Move common error codes to errcode package
Several error codes are generally useful but tied to the v2 specification
definitions. This change moves these error code definitions into the common
package for use by the health package, which is not tied to the v2 API.

Signed-off-by: Stephen J Day <stephen.day@docker.com>
2015-08-11 11:50:58 -07:00
Richard Scothern
d1cb12fa3d Add pull through cache functionality to the Registry which can be configured
with a new `proxy` section in the configuration file.

Create a new registry type which delegates storage to a proxyBlobStore
and proxyManifestStore.  These stores will pull through data if not present
locally.  proxyBlobStore takes care not to write duplicate data to disk.

Add a scheduler to cleanup expired content. The scheduler runs as a background
goroutine.  When a blob or manifest is pulled through from the remote registry,
an entry is added to the scheduler with a TTL.  When the TTL expires the
scheduler calls a pre-specified function to remove the fetched resource.

Add token authentication to the registry middleware.  Get a token at startup
and preload the credential store with the username and password supplied in the
config file.

Allow resumable digest functionality to be disabled at runtime and disable
it when the registry is a pull through cache.

Signed-off-by: Richard Scothern <richard.scothern@gmail.com>
2015-08-04 16:09:55 -07:00