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Manifest and layer soft deletion.

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Implement the delete API by implementing soft delete for layers
and blobs by removing link files and updating the blob descriptor
cache.  Deletion is configurable - if it is disabled API calls
will return an unsupported error.

We invalidate the blob descriptor cache by changing the linkedBlobStore's
blobStatter to a blobDescriptorService and naming it blobAccessController.

Delete() is added throughout the relevant API to support this functionality.

Signed-off-by: Richard Scothern <richard.scothern@gmail.com>
This commit is contained in:
Richard 2015-05-27 10:52:22 -07:00 • committed by Richard Scothern
parent 7dbe35176d
commit 390bb97a88
21 changed files with 816 additions and 92 deletions
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36
docs/handlers/images.go
View file

@ -186,16 +186,38 @@ func (imh *imageManifestHandler) PutImageManifest(w http.ResponseWriter, r *http
w.WriteHeader(http.StatusAccepted)
}
// DeleteImageManifest removes the image with the given tag from the registry.
// DeleteImageManifest removes the manifest with the given digest from the registry.
func (imh *imageManifestHandler) DeleteImageManifest(w http.ResponseWriter, r *http.Request) {
ctxu.GetLogger(imh).Debug("DeleteImageManifest")
// TODO(stevvooe): Unfortunately, at this point, manifest deletes are
// unsupported. There are issues with schema version 1 that make removing
// tag index entries a serious problem in eventually consistent storage.
// Once we work out schema version 2, the full deletion system will be
// worked out and we can add support back.
imh.Errors = append(imh.Errors, v2.ErrorCodeUnsupported)
manifests, err := imh.Repository.Manifests(imh)
if err != nil {
imh.Errors = append(imh.Errors, err)
return
}
err = manifests.Delete(imh.Digest)
if err != nil {
switch err {
case digest.ErrDigestUnsupported:
case digest.ErrDigestInvalidFormat:
imh.Errors = append(imh.Errors, v2.ErrorCodeDigestInvalid)
return
case distribution.ErrBlobUnknown:
imh.Errors = append(imh.Errors, v2.ErrorCodeManifestUnknown)
w.WriteHeader(http.StatusNotFound)
return
case distribution.ErrUnsupported:
imh.Errors = append(imh.Errors, v2.ErrorCodeUnsupported)
w.WriteHeader(http.StatusMethodNotAllowed)
default:
imh.Errors = append(imh.Errors, errcode.ErrorCodeUnknown)
w.WriteHeader(http.StatusBadRequest)
return
}
}
w.WriteHeader(http.StatusAccepted)
}
// digestManifest takes a digest of the given manifest. This belongs somewhere