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Merge pull request #33057 from dmcgowan/windows-download-descriptor

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Use diff ids from image configuration
This commit is contained in:
Brian Goff 2017-05-10 11:36:19 -04:00 committed by GitHub
commit 6efdac4291
1 changed files with 14 additions and 0 deletions
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14
distribution/pull_v2.go
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@ -131,6 +131,7 @@ func (p *v2Puller) pullV2Repository(ctx context.Context, ref reference.Named) (e
type v2LayerDescriptor struct {
digest digest.Digest
diffID layer.DiffID
repoInfo *registry.RepositoryInfo
repo distribution.Repository
V2MetadataService metadata.V2MetadataService
@ -148,6 +149,9 @@ func (ld *v2LayerDescriptor) ID() string {
}
func (ld *v2LayerDescriptor) DiffID() (layer.DiffID, error) {
if ld.diffID != "" {
return ld.diffID, nil
}
return ld.V2MetadataService.GetDiffID(ld.digest)
}
@ -575,6 +579,16 @@ func (p *v2Puller) pullSchema2(ctx context.Context, ref reference.Named, mfst *s
if configRootFS == nil {
return "", "", errRootFSInvalid
}
if len(descriptors) != len(configRootFS.DiffIDs) {
return "", "", errRootFSMismatch
}
// Populate diff ids in descriptors to avoid downloading foreign layers
// which have been side loaded
for i := range descriptors {
descriptors[i].(*v2LayerDescriptor).diffID = configRootFS.DiffIDs[i]
}
}
if p.config.DownloadManager != nil {