This extracts the same logic for parsing annotations from the imagetools
create command, and allows the same flags to be attached to the build
command.
These annotations are then merged into all provided exporters.
Signed-off-by: Justin Chadwell <me@jedevc.com>
On drivers that do not support multi-platform builds (the default
`docker` driver), we do not support building attestations (unless using
the containerd store).
We need to check this feature before attempting to build using
attestations.
Also adds a test to ensure that attestations can be pushed to registries
at all, and that it adequately fails on the docker driver.
Signed-off-by: Justin Chadwell <me@jedevc.com>
Container driver wrote manifest digest that had a
mismatch with --iidfile output.
When --iidfile was set the --metadata-file was not
written.
Signed-off-by: Tonis Tiigi <tonistiigi@gmail.com>
