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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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6
docs/storage/signaturestore.go
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@ -115,8 +115,8 @@ func (s *signatureStore) Put(dgst digest.Digest, signatures ...[]byte) error {
return nil
}
// namedBlobStore returns the namedBlobStore of the signatures for the
// manifest with the given digest. Effectively, each singature link path
// linkedBlobStore returns the namedBlobStore of the signatures for the
// manifest with the given digest. Effectively, each signature link path
// layout is a unique linked blob store.
func (s *signatureStore) linkedBlobStore(ctx context.Context, revision digest.Digest) *linkedBlobStore {
linkpath := func(pm *pathMapper, name string, dgst digest.Digest) (string, error) {
@ -131,7 +131,7 @@ func (s *signatureStore) linkedBlobStore(ctx context.Context, revision digest.Di
ctx: ctx,
repository: s.repository,
blobStore: s.blobStore,
statter: &linkedBlobStatter{
blobAccessController: &linkedBlobStatter{
blobStore: s.blobStore,
repository: s.repository,
linkPath: linkpath,