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update the size field when existing manifest entry is updated

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An existing manifest descriptor in index.json can be updated with
different manifest contents for the same/existing tag. We were updating
the digest but not the size field causing GC to report an error.

Add a unit test case to cover this.

Add logs.
This commit is contained in:
Ramkumar Chinchani
2020-06-18 12:25:18 -07:00
committed by Ravi Chamarthy
parent c374f9dbcb
commit 3dc9885ee9
2 changed files with 94 additions and 1 deletions
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pkg/storage/storage.go
+11 -1
View File
@@ -373,6 +373,7 @@ func (is *ImageStore) PutImageManifest(repo string, reference string, mediaType
for _, l := range m.Layers {
digest := l.Digest
blobPath := is.BlobPath(repo, digest)
is.log.Info().Str("blobPath", blobPath).Str("reference", reference).Msg("manifest layers")
if _, err := os.Stat(blobPath); err != nil {
is.log.Error().Err(err).Str("blobPath", blobPath).Msg("unable to find blob")
@@ -434,8 +435,17 @@ func (is *ImageStore) PutImageManifest(repo string, reference string, mediaType
break
}
// manifest contents have changed for the same tag
// manifest contents have changed for the same tag,
// so update index.json descriptor
is.log.Info().
Int64("old size", desc.Size).
Int64("new size", int64(len(body))).
Str("old digest", desc.Digest.String()).
Str("new digest", mDigest.String()).
Msg("updating existing tag with new manifest contents")
desc = m
desc.Size = int64(len(body))
desc.Digest = mDigest
index.Manifests = append(index.Manifests[:i], index.Manifests[i+1:]...)