Fires a new Mount event when blobs are cross-repo mounted
Adds an optional "fromRepository" field to the event target Signed-off-by: Brian Bland <brian.bland@docker.com>
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3a35a2d953
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4 changed files with 31 additions and 0 deletions
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@ -72,6 +72,15 @@ func (b *bridge) BlobPulled(repo string, desc distribution.Descriptor) error {
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return b.createBlobEventAndWrite(EventActionPull, repo, desc)
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}
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func (b *bridge) BlobMounted(repo string, desc distribution.Descriptor, fromRepo string) error {
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event, err := b.createBlobEvent(EventActionMount, repo, desc)
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if err != nil {
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return err
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}
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event.Target.FromRepository = fromRepo
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return b.sink.Write(*event)
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}
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func (b *bridge) BlobDeleted(repo string, desc distribution.Descriptor) error {
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return b.createBlobEventAndWrite(EventActionDelete, repo, desc)
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}
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@ -11,6 +11,7 @@ import (
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const (
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EventActionPull = "pull"
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EventActionPush = "push"
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EventActionMount = "mount"
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EventActionDelete = "delete"
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)
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@ -61,6 +62,10 @@ type Event struct {
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// Repository identifies the named repository.
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Repository string `json:"repository,omitempty"`
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// FromRepository identifies the named repository which a blob was mounted
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// from if appropriate.
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FromRepository string `json:"fromRepository,omitempty"`
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// URL provides a direct link to the content.
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URL string `json:"url,omitempty"`
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} `json:"target,omitempty"`
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@ -24,6 +24,7 @@ type ManifestListener interface {
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type BlobListener interface {
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BlobPushed(repo string, desc distribution.Descriptor) error
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BlobPulled(repo string, desc distribution.Descriptor) error
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BlobMounted(repo string, desc distribution.Descriptor, fromRepo string) error
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// TODO(stevvooe): Please note that delete support is still a little shaky
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// and we'll need to propagate these in the future.
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@ -169,6 +170,17 @@ func (bsl *blobServiceListener) Resume(ctx context.Context, id string) (distribu
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return bsl.decorateWriter(wr), err
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}
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func (bsl *blobServiceListener) Mount(ctx context.Context, sourceRepo string, dgst digest.Digest) (distribution.Descriptor, error) {
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desc, err := bsl.BlobStore.Mount(ctx, sourceRepo, dgst)
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if err == nil {
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if err := bsl.parent.listener.BlobMounted(bsl.parent.Repository.Name(), desc, sourceRepo); err != nil {
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context.GetLogger(ctx).Errorf("error dispatching layer mount to listener: %v", err)
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}
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}
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return desc, err
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}
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func (bsl *blobServiceListener) decorateWriter(wr distribution.BlobWriter) distribution.BlobWriter {
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return &blobWriterListener{
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BlobWriter: wr,
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@ -81,6 +81,11 @@ func (tl *testListener) BlobPulled(repo string, desc distribution.Descriptor) er
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return nil
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}
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func (tl *testListener) BlobMounted(repo string, desc distribution.Descriptor, fromRepo string) error {
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tl.ops["layer:mount"]++
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return nil
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}
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func (tl *testListener) BlobDeleted(repo string, desc distribution.Descriptor) error {
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tl.ops["layer:delete"]++
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return nil
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