The previous code assumed that the link returned when listing tags was
always absolute. However, some registries, such as quay.io, return the
link as a relative link (e.g. the second page for the quay.io/coreos/etcd
image is /v2/coreos/etcd/tags/list?next_page=<truncated>&n=50). Because
the relative link was retrieved directly, the fetch failed (with the
error `unsupported protocol scheme ""`).
Signed-off-by: Kevin Lin <kevin@kelda.io>
The current registry/client sends the registered manifest types in
random order. Allow clients to request a single specific manifest type
or a preferred order as per the HTTP spec.
Signed-off-by: Clayton Coleman <ccoleman@redhat.com>
A statically hosted registry that responds correctly to GET with a
manifest will load the right digest (by looking at the manifest body and
calculating the digest). If the registry returns a HEAD without
`Docker-Content-Digest`, then the client Tags().Get() call will return
an empty digest.
This commit changes the client to fallback to loading the tag via GET if
the `Docker-Content-Digest` header is not set.
Signed-off-by: Clayton Coleman <ccoleman@redhat.com>
AuthorizeRequest() injects the 'pull' scope if `from` is set
unconditionally. If the current token already has that scope, it will
be inserted into the scope list twice and `addedScopes` will be set to
true, resulting in a new token being fetched that has no net new scopes.
Instead, check whether `additionalScopes` are actually new.
Signed-off-by: Clayton Coleman <ccoleman@redhat.com>
To simplify the vendoring story for the client, we have now removed the
requirement for `logrus` and the forked `context` package (usually
imported as `dcontext`). We inject the logger via the metrics tracker
for the blob cache and via options on the token handler. We preserve
logs on the proxy cache for that case. Clients expecting these log
messages may need to be updated accordingly.
Signed-off-by: Stephen J Day <stephen.day@docker.com>
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>
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)
Enforces backwards compatibility with older authorization servers
without requiring the client to know about the compatibility
requirements.
Signed-off-by: Derek McGowan <derek@mcgstyle.net> (github: dmcgowan)
Allow clients to handle errors being set in the WWW-Authenticate
rather than in the body. The WWW-Authenticate errors give a
more precise error describing what is needed to authorize
with the server.
Signed-off-by: Derek McGowan <derek@mcgstyle.net> (github: dmcgowan)
Split challenges into its own package. Avoids possible
import cycle with challenges from client.
Signed-off-by: Derek McGowan <derek@mcgstyle.net> (github: dmcgowan)
If a user specifies `mydomain.com:443` in the `Host` configuration, the
PATCH request for the layer upload will fail because the challenge does not
appear to be in the map. To fix this, we normalize the map keys to always
use the Host:Port combination.
Closes https://github.com/docker/docker/issues/18469
Signed-off-by: Stan Hu <stanhu@gmail.com>
* tag service: properly handle error responses on HEAD requests by
re-issuing requests as GET for proper error details.
Fixes#1911.
Signed-off-by: dmitri <deemok@gmail.com>
* Simplify handling of failing HEAD requests in TagService and
make a GET request for cases:
- if the server does not handle HEAD
- if the response was an error to get error details
Signed-off-by: dmitri <deemok@gmail.com>
* Add a missing http.Response.Body.Close call for the GET request.
Signed-off-by: dmitri <deemok@gmail.com>
Allows using v2 for v1 endpoints.
The primary use case being for search which does not have a v2 specification.
Added a user scope for allowing v2 search
Signed-off-by: Derek McGowan <derek@mcgstyle.net> (github: dmcgowan)
The client may need the content digest to delete a manifest using the digest used by the registry.
Signed-off-by: Derek McGowan <derek@mcgstyle.net> (github: dmcgowan)
go1.5 doesn't export http.StatusTooManyRequests while
go1.6 does. Fix this by hardcoding the status code for now.
Signed-off-by: Antonio Murdaca <runcom@redhat.com>
