This change allows users to run the registry as a pull-through cache
that can use a credential helper to authenticate against the upstream
registry.
Signed-off-by: Chun-Hung Hsiao <chhsiao@google.com>
There was a small regression introduced in
https://github.com/distribution/distribution/pull/4349.
Specifically, if the certificate chain verification succeeds we should
return immediately instead of following up with further token verification
checks.
This commit fixes that: we only follow up with further token
verifications if x5c header is missing.
We've also refactored this method so it's hopefully clearer.
Co-authored-by: Kyle Squizzato <ksquizz@gmail.com>
Signed-off-by: Milos Gajdos <milosthegajdos@gmail.com>
Stat always calls ListObjects when stat-ing S3 key.
Unfortauntely ListObjects is not a free call - both in terms of egress
and actual AWS costs (likely because of the egress).
This changes the behaviour of Stat such that we always attempt the
HeadObject call first and only ever fall through to ListObjects if the
HeadObject returns an AWS API error.
Note, that the official docs mention that the only error returned by
HEAD is NoSuchKey; experiments show that this is demonstrably wrong and
the AWS docs are simply outdated at the time of this commit.
HeadObject actually returns the following errors:
* NotFound: if the queried key does not exist
* NotFound: if the queried key contains subkeys i.e. it's a prefix
* BucketRegionError: if the bucket does not exist
* Forbidden: if Head operation is not allows via IAM/ACLs
Co-authored-by: Cory Snider <corhere@gmail.com>
Co-authored-by: Sebastiaan van Stijn <github@gone.nl>
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
Signed-off-by: Milos Gajdos <milosthegajdos@gmail.com>
Change the marshal-funcs to a regular function instead of definining
as part of an init and remove some intermediate variables.
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
Commit cb6f002350 implemented a generic
Manifest interface to represent manifests in the registry and remove
references to schema specific manifests.
As part of this refactor, the Describable interface was introduced,
which allowed for a single ManifestBuilder interface to handle both
schema1 and schema2 manifests. Implementations of Describable are
generally objects which can be described, not simply descriptors, but
for convenience, this interface was also implemented on Descriptor in
2ff77c00ba.
This interface served its purpose, but no longer needed for most cases;
schema2 (and OCI) descriptors do not need this method, making it only
needed for `schema1.Reference`, which is now deprecated.
Requiring this interface to be implemented limits interoperability
between distribution's Descriptor and the OCI Descriptor types, which
are identical in every other way, except for the presence of the
Describable interface.
This patch:
- Removes the `Descriptor.Descriptor()` method (no longer implementing
the `Describable` interface).
- Updates ManifestBuilder interface and implementations to accept either
- Updates ManifestBuilder interface and implementations to accept a
`Descriptor`.
After this patch, the caller is responsible for changing a describable
type into a descriptor;
builder.AppendReference(describable.Descriptor())
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
Defining an interface on the implementer side is generally not best
practice in Go code. There is no code in the distribution module which
consumes a ManifestBuilder value so there is no need to define the
interface in the distribution module. Export the concrete
ManifestBuilder types and modify the constructors to return concrete
values.
Co-authored-by: Sebastiaan van Stijn <github@gone.nl>
Signed-off-by: Cory Snider <csnider@mirantis.com>
