Ensure that when removing an image, an image is checked consistently
against the images with the same target digest. Add unit testing around
delete.
Signed-off-by: Derek McGowan <derek@mcg.dev>
This isn't something that user should do, but technically the dangling
images exist in the image store and user can pass its name (`moby-dangling@digest`).
Change it so rmi now recognizes that it's actually a dangling image and
doesn't handle it like a regular tagged image.
Signed-off-by: Paweł Gronowski <pawel.gronowski@docker.com>
Instead of passing a completely fresh context without any values, just
discard the cancellation.
Signed-off-by: Paweł Gronowski <pawel.gronowski@docker.com>
Implements image tagging under containerd image store.
If an image with this tag already exists, and there's no other image
with the same target, change its name. The name will have a special
format `moby-dangling@<digest>` which isn't a valid canonical reference
and doesn't resolve to any repository.
Signed-off-by: Paweł Gronowski <pawel.gronowski@docker.com>
