This change allows implementations to resolve the location of the actual data
using OCI descriptor fields such as MediaType.
No OCI descriptor field is written to the store.
No change on gRPC API.
Signed-off-by: Akihiro Suda <suda.akihiro@lab.ntt.co.jp>
This allows Go to build third party packages correctly without vendoring
issues what want to create their own SpecOpts.
Fixes#2289
Signed-off-by: Michael Crosby <crosbymichael@gmail.com>
In a few places we check for nil types when modifying a spec,
but in many cases we do not so we could get a panic if the
passed in type was not filled. Because the generated spec is
filled we will not notice this but users may get unexpected
panics.
Signed-off-by: Justin Cormack <justin.cormack@docker.com>
