Oras Pull Manifest Using CLI

[sowu880]

Since manifest stores meta data of image which is important to developers.
Is that possible add a CLI tool for just pull manifest and just pull one blob by digest?

[shizhMSFT]

Pulling manifest and single blobs are not aimmed by ORAS CLI but possible with its golang package. Usually, those operations should be achieved by a generic registry client.

[shizhMSFT]

However, similar stuffs can be achieved by oras pull with cache #203 (resolves #193).

Since the cache also caches the manifest, you can get the manifest and individual files in the cache.

digest=$(oras pull localhost:5000/hello:latest | tail -n1 | cut -d' ' -f2)
cat "${ORAS_CACHE}/blobs/$(echo -n $digest | tr ':' '/')" | jq .