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cmd/dist, remotes: break out docker resolver

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Allow usage of the experimental docker resolver as a package. There are
very few changes to the consuming code, demonstrating the effectiveness
of the abstraction. This move will allow future contributions to a more
featured resolver implementation.

Signed-off-by: Stephen J Day <stephen.day@docker.com>
This commit is contained in:
Stephen J Day 2017-03-21 16:52:22 -07:00
parent 4cc7cddf4b
commit e1a361bff2
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GPG key ID: 67B3DED84EDC823F
5 changed files with 314 additions and 302 deletions
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8
images/handlers.go
View file

@ -11,14 +11,6 @@ import (
"golang.org/x/sync/errgroup"
)
const (
MediaTypeDockerSchema2Layer = "application/vnd.docker.image.rootfs.diff.tar"
MediaTypeDockerSchema2LayerGzip = "application/vnd.docker.image.rootfs.diff.tar.gzip"
MediaTypeDockerSchema2Config = "application/vnd.docker.container.image.v1+json"
MediaTypeDockerSchema2Manifest = "application/vnd.docker.distribution.manifest.v2+json"
MediaTypeDockerSchema2ManifestList = "application/vnd.docker.distribution.manifest.list.v2+json"
)
var SkipDesc = fmt.Errorf("skip descriptor")
type Handler interface {

13
images/mediatypes.go Normal file
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@ -0,0 +1,13 @@
package images
// mediatype definitions for image components handled in containerd.
//
// oci components are generally referenced directly, although we may centralize
// here for clarity.
const (
MediaTypeDockerSchema2Layer = "application/vnd.docker.image.rootfs.diff.tar"
MediaTypeDockerSchema2LayerGzip = "application/vnd.docker.image.rootfs.diff.tar.gzip"
MediaTypeDockerSchema2Config = "application/vnd.docker.container.image.v1+json"
MediaTypeDockerSchema2Manifest = "application/vnd.docker.distribution.manifest.v2+json"
MediaTypeDockerSchema2ManifestList = "application/vnd.docker.distribution.manifest.list.v2+json"
)