Commit graph

117 commits

Author SHA1 Message Date
Richard Scothern
cb6f002350 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
4c850e7165 Remove tarsum support for digest package
tarsum is not actually used by the registry. Remove support for it.

Convert numerous uses in unit tests to SHA256.

Update docs to remove mentions of tarsums (which were often inaccurate).

Remove tarsum dependency.

Signed-off-by: Aaron Lehmann <aaron.lehmann@docker.com>
2015-12-15 17:22:18 -08:00
Aaron Lehmann
31047c8113 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
Troels Thomsen
300ce35c12 Map error type to error code
Signed-off-by: Troels Thomsen <troels@thomsen.io>
2015-12-01 22:26:37 +01:00
Richard Scothern
dd32fbe615 Before allowing a schema1 manifest to be stored in the registry, ensure that it
contains equal length History and FSLayer arrays.

This is required to prevent malformed manifests being put to the registry and
failing external verification checks.

Signed-off-by: Richard Scothern <richard.scothern@gmail.com>
2015-11-03 15:19:46 -08:00
Stephen Day
dfe60f4cb1 Merge pull request #827 from aaronlehmann/read-only-mode-2
Add a read-only mode as a configuration option
2015-10-15 11:50:31 -07:00
Stephen J Day
76624704c3 Correct unmarshal order for SignedManifest
To ensure that we only unmarshal the verified payload into the contained
manifest, we first copy the entire incoming buffer into Raw and then unmarshal
only the Payload portion of the incoming bytes. If the contents is later
verified, the caller can then be sure that the contents of the Manifest fields
can be trusted.

Signed-off-by: Aaron Lehmann <aaron.lehmann@docker.com>
2015-10-14 14:37:34 -07:00
Aaron Lehmann
0a6988195e Add http.host parameter
This allows the administrator to specify an externally-reachable URL for
the registry. It takes precedence over the X-Forwarded-Proto and
X-Forwarded-Host headers, and the hostname in the request.

Signed-off-by: Aaron Lehmann <aaron.lehmann@docker.com>
2015-09-30 15:12:01 -07:00
Aaron Lehmann
a601f92336 Add an "enabled" parameter under "readonly", and make it as if the mutable handlers don't exist when read-only mode is enabled
Signed-off-by: Aaron Lehmann <aaron.lehmann@docker.com>
2015-09-22 15:49:26 -07:00
Aaron Lehmann
c9bb330b71 Add a read-only mode as a configuration option
Add "readonly" under the storage/maintenance section. When this is set
to true, uploads and deletions will return 503 Service Unavailable
errors.

Document the parameter and add some unit testing.

Signed-off-by: Aaron Lehmann <aaron.lehmann@docker.com>
2015-09-22 15:47:48 -07:00
Stephen J Day
530afa5234 Add WithVersion to context and other cleanup
By adding WithVersion to the context package, we can simplify context setup in
the application. This avoids some odd bugs where instantiation order can lead
to missing instance.id or version from log messages.

Signed-off-by: Stephen J Day <stephen.day@docker.com>
2015-09-14 17:14:31 -07:00
Aaron Lehmann
9b69e40c93 Move initialization code from main.go to the registry package
This makes it easier to embed a registry instance inside another
application.

Signed-off-by: Aaron Lehmann <aaron.lehmann@docker.com>
2015-09-09 14:39:31 -07:00
Stephen J Day
6712e602b0 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
b67aab2f60 Add headers parameter for HTTP checker
Signed-off-by: Aaron Lehmann <aaron.lehmann@docker.com>
2015-08-20 15:11:16 -07:00
Aaron Lehmann
e8f088fea6 Add a TCP health checker
Also, add timeout and status code parameters to the HTTP checker, and
remove the threshold parameter for the file checker.

Signed-off-by: Aaron Lehmann <aaron.lehmann@docker.com>
2015-08-20 15:11:15 -07:00
Aaron Lehmann
b9b9cafa8f Expose a Registry type in health package, so unit tests can stay isolated from each other
Update docs.

Change health_test.go tests to create their own registries and register
the checks there. The tests now call CheckStatus directly instead of
polling the HTTP handler, which returns results from the default
registry.

Signed-off-by: Aaron Lehmann <aaron.lehmann@docker.com>
2015-08-20 15:07:54 -07:00
Aaron Lehmann
79959f578a Switch tests to import "github.com/docker/distribution/context"
Signed-off-by: Aaron Lehmann <aaron.lehmann@docker.com>
2015-08-20 14:50:12 -07:00
Aaron Lehmann
216df32510 Add storagedriver section to health check configuration
Add default storagedriver health check to example configuration files
with parameters matching the previous hardcoded configuration.

Signed-off-by: Aaron Lehmann <aaron.lehmann@docker.com>
2015-08-20 14:50:12 -07:00
Aaron Lehmann
b09b0ffcf9 Add configurable file-existence and HTTP health checks
Add a section to the config file called "health". Within this section,
"filecheckers" and "httpcheckers" list checks to run. Each check
specifies a file or URI, a time interval for the check, and a threshold
specifying how many times the check must fail to reach an unhealthy
state.

Document the new options in docs/configuration.md.

Add unit testing for both types of checkers. Add an UnregisterAll
function in the health package to support the unit tests, and an
Unregister function for consistency with Register.

Fix a string conversion problem in the health package's HTTP checker.

Signed-off-by: Aaron Lehmann <aaron.lehmann@docker.com>
2015-08-20 14:50:12 -07:00
Stephen Day
e4b93d1e6d Merge pull request #893 from aaronlehmann/functional-opts
Functional options for NewRegistryWithDriver
2015-08-19 14:41:08 -07:00
Aaron Lehmann
5bef618ace Add a unit test which verifies the ResponseWriter endpoints see implements CloseNotifier
Signed-off-by: Aaron Lehmann <aaron.lehmann@docker.com>
2015-08-19 11:37:53 -07:00
Aaron Lehmann
dbbcf5fe42 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
Aaron Lehmann
0e7462f1dd Fix CloseNotifier handling and avoid "the ResponseWriter does not implement CloseNotifier" warnings in logs
A change in #763 to address review comments caused problems. Originally,
instrumentedResponseWriter implemented the CloseNotifier interface, and
would panic if it was wrapping something that did not implement that
interface. This was split into a separate instrumentedResponseWriterCN
type that implements CloseNotifier, so there's a fallback if
instrumentedResponseWriter ever needs to wrap something that does not
implement this interface.

instrumentedResponseWriter's Value method would end up upcasting either
type back to instrumentedResponseWriter, which does not implement the
interface. In effect, instrumentedResponseWriterCN was never visible to
the handler.

This fixes the problem by implementing a wrapper Value method for
instrumentedResponseWriterCN.

Signed-off-by: Aaron Lehmann <aaron.lehmann@docker.com>
2015-08-18 17:28:51 -07:00
Aaron Lehmann
98d9b5f589 Fix tests after #846
Change checkResponse to only expect the configured
X-Content-Type-Options header if it doesn't receive a 405 error, which
means the handler isn't registered for that method.

Signed-off-by: Aaron Lehmann <aaron.lehmann@docker.com>
2015-08-18 13:33:26 -07:00
Richard Scothern
f169359798 Merge pull request #846 from aaronlehmann/http-header-configuration
Add a section to the config file for HTTP headers to add to responses
2015-08-18 12:53:05 -07:00
Aaron Lehmann
9c3bed6b88 Add a section to the config file for HTTP headers to add to responses
The example configuration files add X-Content-Type-Options: nosniff.

Add coverage in existing registry/handlers unit tests.

Signed-off-by: Aaron Lehmann <aaron.lehmann@docker.com>
2015-08-11 16:41:38 -07:00
Richard Scothern
776a4ffbe8 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
f141480d98 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
Stephen J Day
6ba799b69e Provide simple storage driver health check
To ensure the ensure the web application is properly operating, we've added a
periodic health check for the storage driver. If the health check fails three
times in a row, the registry will serve 503 response status for any request
until the condition is resolved. The condition is reported in the response body
and via the /debug/health endpoint.

To ensure that all drivers will properly operate with this health check, a
function has been added to the driver testsuite.

Signed-off-by: Stephen J Day <stephen.day@docker.com>
2015-08-11 11:50:52 -07:00
Aaron Lehmann
10f602b158 Don't panic when a http.ResponseWriter does not implement CloseNotifier
Instead, provide a variant of instrumentedResponseWriter that does not
implement CloseNotifier, and use that when necessary. In
copyFullPayload, log instead of panicing when we encounter something
that doesn't implement CloseNotifier.

This is more complicated than I'd like, but it's necessary because
instrumentedResponseWriter must not embed CloseNotifier unless there's
really a CloseNotifier to embed.

Signed-off-by: Aaron Lehmann <aaron.lehmann@docker.com>
2015-08-06 15:50:54 -07:00
Stephen Day
a0c63372fa Merge pull request #779 from RichardScothern/pull-through-cache
Add pull through cache ability to the Registry.
2015-08-04 17:04:56 -07:00
Richard Scothern
94935f39bc 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
Aaron Lehmann
609efa79e4 Set the response code to 499 when a client disconnects during an upload
The response code isn't actually sent to the client, because the
connection has already closed by this point. But it causes the status
code to appear as 499 in the logs instead of 0.

Signed-off-by: Aaron Lehmann <aaron.lehmann@docker.com>
2015-07-31 17:39:30 -07:00
Aaron Lehmann
9c58954a6e Factor CloseNotifier use into a new function
Signed-off-by: Aaron Lehmann <aaron.lehmann@docker.com>
2015-07-31 17:30:26 -07:00
Aaron Lehmann
6cb5670ba5 Use CloseNotifier to supress spurious HTTP 400 errors on early disconnect
When a client disconnects without completing a HTTP request, we were
attempting to process the partial request, which usually leads to a 400
error. These errors can pollute the logs and make it more difficult to
track down real bugs.

This change uses CloseNotifier to detect disconnects. In combination
with checking Content-Length, we can detect a disconnect before sending
the full payload, and avoid logging a 400 error.

This logic is only applied to PUT, POST, and PATCH endpoints, as these
are the places where disconnects during a request are most likely to
happen.

Signed-off-by: Aaron Lehmann <aaron.lehmann@docker.com>
2015-07-31 17:30:26 -07:00
Stephen Day
ad1b7d8f35 Merge pull request #740 from stevvooe/disable-storage-redirects
Allow disabling of storage driver redirects
2015-07-30 14:28:31 -07:00
Stephen Day
9038e48c3b Merge pull request #609 from RichardScothern/single-log-line
Log a single line when a response completes.
2015-07-29 17:52:13 -07:00
Richard Scothern
54f7e5d54b When a request completes ensure only one log line is printed which
includes the http response.

When debugging non-successful registry requests this will place
the error details and http status fields in the same log line
giving easier visibility to what error occured in the request.

Signed-off-by: Richard Scothern <richard.scothern@gmail.com>
2015-07-29 16:52:47 -07:00
Aaron Lehmann
70d9a9d543 Automatically generate a HTTP secret if none is provided
Log a warning if the registry generates its own secret.

Update configuration doc, and remove the default secret from the
development config file.

Signed-off-by: Aaron Lehmann <aaron.lehmann@docker.com>
2015-07-29 14:28:56 -07:00
Aaron Lehmann
73702a8707 Fix for api_test.go
This passed in the #744 before merge, but apparently the test changed
since the PR was created in ways that led to a new failures.

Signed-off-by: Aaron Lehmann <aaron.lehmann@docker.com>
2015-07-28 10:59:11 -07:00
Derek McGowan
0355c3026c Merge pull request #744 from aaronlehmann/manifest-put-response-code
Manifest PUT should return 201 Created
2015-07-28 10:42:54 -07:00
Stephen J Day
9f9a7f230b Allow disabling of starage driver redirects
Storage drivers can implement a method called URLFor which can return a direct
url for a given path. The functionality allows the registry to direct clients
to download content directly from the backend storage. This is commonly used
with s3 and cloudfront. Under certain conditions, such as when the registry is
not local to the backend, these redirects can hurt performance and waste
incoming bandwidth on pulls. This feature addition allows one to disable this
feature, if required.

Signed-off-by: Stephen J Day <stephen.day@docker.com>

Conflicts:
	configuration/configuration.go
	registry/handlers/app.go
	registry/storage/catalog_test.go
	registry/storage/manifeststore_test.go
	registry/storage/registry.go
2015-07-24 16:59:35 -07:00
Stephen Day
060465882b Merge pull request #736 from stevvooe/authorization-interface-cleanup
Authorization interface cleanup
2015-07-24 15:39:49 -07:00
Stephen Day
b49d77a42f Merge pull request #739 from stevvooe/etags-must-be-quoted
Etags must be quoted according to http spec
2015-07-24 15:08:27 -07:00
Stephen J Day
338e645f20 Etags must be quoted according to http spec
Signed-off-by: Stephen J Day <stephen.day@docker.com>
2015-07-24 13:07:38 -07:00
Stephen Day
9e9e9a2859 Merge pull request #677 from RichardScothern/soft-delete-remove-links
Manifest and layer soft deletion
2015-07-24 13:02:36 -07:00
Aaron Lehmann
cf32056218 Manifest PUT should return 201 Created
Change handler, update descriptors table, regenerate API spec, and
update test.

Signed-off-by: Aaron Lehmann <aaron.lehmann@docker.com>
2015-07-24 12:58:16 -07:00
Richard
9c1dd69439 Manifest and layer soft deletion.
Implement the delete API by implementing soft delete for layers
and blobs by removing link files and updating the blob descriptor
cache.  Deletion is configurable - if it is disabled API calls
will return an unsupported error.

We invalidate the blob descriptor cache by changing the linkedBlobStore's
blobStatter to a blobDescriptorService and naming it blobAccessController.

Delete() is added throughout the relevant API to support this functionality.

Signed-off-by: Richard Scothern <richard.scothern@gmail.com>
2015-07-24 09:57:20 -07:00
Stephen J Day
0b89cdfcd4 Do not replace logger when adding hooks
Because the logger was incorrectly replaced while adding hooks, log output did
not include the version and instance ids. The main issue was the the
logrus.Entry was replaced with the logger, which included no context. Replacing
the logger on the context is not necessary when configuring hooks since we are
configuring the contexts logger directly.

Signed-off-by: Stephen J Day <stephen.day@docker.com>
2015-07-23 20:51:11 -07:00
Stephen J Day
a0fdfb9d4d Simplify auth.Challenge interface to SetHeaders
This removes the erroneous http.Handler interface in favor a simple SetHeaders
method that only operattes on the response. Several unnecessary uses of pointer
types were also fixed up.

Signed-off-by: Stephen J Day <stephen.day@docker.com>
2015-07-23 19:47:57 -07:00